From 8b184ed48d48255b542e9ed27276517a84c5b876 Mon Sep 17 00:00:00 2001
From: Alex Ling <hkalexling@gmail.com>
Date: Wed, 8 Apr 2020 03:38:02 +0000
Subject: [PATCH] Project-wise code formatting

---
 spec/config_spec.cr        |  18 +-
 spec/mangadex_spec.cr      | 177 +++++-----
 spec/spec_helper.cr        |  86 ++---
 spec/storage_spec.cr       | 154 ++++-----
 spec/util_spec.cr          |  58 ++--
 src/auth_handler.cr        |  31 +-
 src/config.cr              | 102 +++---
 src/context.cr             |  24 +-
 src/library.cr             | 627 +++++++++++++++++-----------------
 src/log_handler.cr         |  36 +-
 src/logger.cr              |  90 ++---
 src/mangadex/api.cr        | 364 ++++++++++----------
 src/mangadex/downloader.cr | 667 +++++++++++++++++++------------------
 src/mango.cr               |  34 +-
 src/routes/admin.cr        | 183 +++++-----
 src/routes/api.cr          | 364 ++++++++++----------
 src/routes/main.cr         | 104 +++---
 src/routes/reader.cr       |  99 +++---
 src/routes/router.cr       |   4 +-
 src/server.cr              |  72 ++--
 src/static_handler.cr      |  42 +--
 src/storage.cr             | 298 ++++++++---------
 src/util.cr                | 100 +++---
 23 files changed, 1864 insertions(+), 1870 deletions(-)

diff --git a/spec/config_spec.cr b/spec/config_spec.cr
index c4f8700..c3aad08 100644
--- a/spec/config_spec.cr
+++ b/spec/config_spec.cr
@@ -1,14 +1,14 @@
 require "./spec_helper"
 
 describe Config do
-	it "creates config if it does not exist" do
-		with_default_config do |config, logger, path|
-			File.exists?(path).should be_true
-		end
-	end
+  it "creates config if it does not exist" do
+    with_default_config do |config, logger, path|
+      File.exists?(path).should be_true
+    end
+  end
 
-	it "correctly loads config" do
-		config = Config.load "spec/asset/test-config.yml"
-		config.port.should eq 3000
-	end
+  it "correctly loads config" do
+    config = Config.load "spec/asset/test-config.yml"
+    config.port.should eq 3000
+  end
 end
diff --git a/spec/mangadex_spec.cr b/spec/mangadex_spec.cr
index 21e5853..79534ce 100644
--- a/spec/mangadex_spec.cr
+++ b/spec/mangadex_spec.cr
@@ -3,103 +3,102 @@ require "./spec_helper"
 include MangaDex
 
 describe Queue do
-	it "creates DB at given path" do
-		with_queue do |queue, path|
-			File.exists?(path).should be_true
-		end
-	end
+  it "creates DB at given path" do
+    with_queue do |queue, path|
+      File.exists?(path).should be_true
+    end
+  end
 
-	it "pops nil when empty" do
-		with_queue do |queue|
-			queue.pop.should be_nil
-		end
-	end
+  it "pops nil when empty" do
+    with_queue do |queue|
+      queue.pop.should be_nil
+    end
+  end
 
-	it "inserts multiple jobs" do
-		with_queue do |queue|
-			j1 = Job.new "1", "1", "title", "manga_title", JobStatus::Error,
-				Time.utc
-			j2 = Job.new "2", "2", "title", "manga_title", JobStatus::Completed,
-				Time.utc
-			j3 = Job.new "3", "3", "title", "manga_title", JobStatus::Pending,
-				Time.utc
-			j4 = Job.new "4", "4", "title", "manga_title",
-				JobStatus::Downloading, Time.utc
-			count = queue.push [j1, j2, j3, j4]
-			count.should eq 4
-		end
-	end
+  it "inserts multiple jobs" do
+    with_queue do |queue|
+      j1 = Job.new "1", "1", "title", "manga_title", JobStatus::Error,
+        Time.utc
+      j2 = Job.new "2", "2", "title", "manga_title", JobStatus::Completed,
+        Time.utc
+      j3 = Job.new "3", "3", "title", "manga_title", JobStatus::Pending,
+        Time.utc
+      j4 = Job.new "4", "4", "title", "manga_title",
+        JobStatus::Downloading, Time.utc
+      count = queue.push [j1, j2, j3, j4]
+      count.should eq 4
+    end
+  end
 
-	it "pops pending job" do
-		with_queue do |queue|
-			job = queue.pop
-			job.should_not be_nil
-			job.not_nil!.id.should eq "3"
-		end
-	end
+  it "pops pending job" do
+    with_queue do |queue|
+      job = queue.pop
+      job.should_not be_nil
+      job.not_nil!.id.should eq "3"
+    end
+  end
 
-	it "correctly counts jobs" do
-		with_queue do |queue|
-			queue.count.should eq 4
-		end
-	end
+  it "correctly counts jobs" do
+    with_queue do |queue|
+      queue.count.should eq 4
+    end
+  end
 
-	it "deletes job" do
-		with_queue do |queue|
-			queue.delete "4"
-			queue.count.should eq 3
-		end
-	end
+  it "deletes job" do
+    with_queue do |queue|
+      queue.delete "4"
+      queue.count.should eq 3
+    end
+  end
 
-	it "sets status" do
-		with_queue do |queue|
-			job = queue.pop.not_nil!
-			queue.set_status JobStatus::Downloading, job
-			job = queue.pop
-			job.should_not be_nil
-			job.not_nil!.status.should eq JobStatus::Downloading
-		end
-	end
+  it "sets status" do
+    with_queue do |queue|
+      job = queue.pop.not_nil!
+      queue.set_status JobStatus::Downloading, job
+      job = queue.pop
+      job.should_not be_nil
+      job.not_nil!.status.should eq JobStatus::Downloading
+    end
+  end
 
-	it "sets number of pages" do
-		with_queue do |queue|
-			job = queue.pop.not_nil!
-			queue.set_pages 100, job
-			job = queue.pop
-			job.should_not be_nil
-			job.not_nil!.pages.should eq 100
-		end
-	end
+  it "sets number of pages" do
+    with_queue do |queue|
+      job = queue.pop.not_nil!
+      queue.set_pages 100, job
+      job = queue.pop
+      job.should_not be_nil
+      job.not_nil!.pages.should eq 100
+    end
+  end
 
-	it "adds fail/success counts" do
-		with_queue do |queue|
-			job = queue.pop.not_nil!
-			queue.add_success job
-			queue.add_success job
-			queue.add_fail job
-			job = queue.pop
-			job.should_not be_nil
-			job.not_nil!.success_count.should eq 2
-			job.not_nil!.fail_count.should eq 1
-		end
-	end
+  it "adds fail/success counts" do
+    with_queue do |queue|
+      job = queue.pop.not_nil!
+      queue.add_success job
+      queue.add_success job
+      queue.add_fail job
+      job = queue.pop
+      job.should_not be_nil
+      job.not_nil!.success_count.should eq 2
+      job.not_nil!.fail_count.should eq 1
+    end
+  end
 
-	it "appends status message" do
-		with_queue do |queue|
-			job = queue.pop.not_nil!
-			queue.add_message "hello", job
-			queue.add_message "world", job
-			job = queue.pop
-			job.should_not be_nil
-			job.not_nil!.status_message.should eq "\nhello\nworld"
-		end
-	end
+  it "appends status message" do
+    with_queue do |queue|
+      job = queue.pop.not_nil!
+      queue.add_message "hello", job
+      queue.add_message "world", job
+      job = queue.pop
+      job.should_not be_nil
+      job.not_nil!.status_message.should eq "\nhello\nworld"
+    end
+  end
 
-	it "cleans up" do
-		with_queue do
-			true
-		end
-		State.reset
-	end
+  it "cleans up" do
+    with_queue do
+      true
+    end
+    State.reset
+  end
 end
-
diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
index 7755d02..67b5535 100644
--- a/spec/spec_helper.cr
+++ b/spec/spec_helper.cr
@@ -3,63 +3,63 @@ require "../src/context"
 require "../src/server"
 
 class State
-	@@hash = {} of String => String
+  @@hash = {} of String => String
 
-	def self.get(key)
-		@@hash[key]?
-	end
+  def self.get(key)
+    @@hash[key]?
+  end
 
-	def self.get!(key)
-		@@hash[key]
-	end
+  def self.get!(key)
+    @@hash[key]
+  end
 
-	def self.set(key, value)
-		return if value.nil?
-		@@hash[key] = value
-	end
+  def self.set(key, value)
+    return if value.nil?
+    @@hash[key] = value
+  end
 
-	def self.reset
-		@@hash.clear
-	end
+  def self.reset
+    @@hash.clear
+  end
 end
 
 def get_tempfile(name)
-	path = State.get name
-	if path.nil? || !File.exists? path
-		file = File.tempfile name
-		State.set name, file.path
-		return file
-	else
-		return File.new path
-	end
+  path = State.get name
+  if path.nil? || !File.exists? path
+    file = File.tempfile name
+    State.set name, file.path
+    return file
+  else
+    return File.new path
+  end
 end
 
 def with_default_config
-	temp_config = get_tempfile "mango-test-config"
-	config = Config.load temp_config.path
-	logger = Logger.new config.log_level
-	yield config, logger, temp_config.path
-	temp_config.delete
+  temp_config = get_tempfile "mango-test-config"
+  config = Config.load temp_config.path
+  logger = Logger.new config.log_level
+  yield config, logger, temp_config.path
+  temp_config.delete
 end
 
 def with_storage
-	with_default_config do |config, logger|
-		temp_db = get_tempfile "mango-test-db"
-		storage = Storage.new temp_db.path, logger
-		clear = yield storage, temp_db.path
-		if clear == true
-			temp_db.delete
-		end
-	end
+  with_default_config do |config, logger|
+    temp_db = get_tempfile "mango-test-db"
+    storage = Storage.new temp_db.path, logger
+    clear = yield storage, temp_db.path
+    if clear == true
+      temp_db.delete
+    end
+  end
 end
 
 def with_queue
-	with_default_config do |config, logger|
-		temp_queue_db = get_tempfile "mango-test-queue-db"
-		queue = MangaDex::Queue.new temp_queue_db.path, logger
-		clear = yield queue, temp_queue_db.path
-		if clear == true
-			temp_queue_db.delete
-		end
-	end
+  with_default_config do |config, logger|
+    temp_queue_db = get_tempfile "mango-test-queue-db"
+    queue = MangaDex::Queue.new temp_queue_db.path, logger
+    clear = yield queue, temp_queue_db.path
+    if clear == true
+      temp_queue_db.delete
+    end
+  end
 end
diff --git a/spec/storage_spec.cr b/spec/storage_spec.cr
index 8b80003..8092d9e 100644
--- a/spec/storage_spec.cr
+++ b/spec/storage_spec.cr
@@ -1,91 +1,91 @@
 require "./spec_helper"
 
 describe Storage do
-	it "creates DB at given path" do
-		with_storage do |storage, path|
-			File.exists?(path).should be_true
-		end
-	end
+  it "creates DB at given path" do
+    with_storage do |storage, path|
+      File.exists?(path).should be_true
+    end
+  end
 
-	it "deletes user" do
-		with_storage do |storage|
-			storage.delete_user "admin"
-		end
-	end
+  it "deletes user" do
+    with_storage do |storage|
+      storage.delete_user "admin"
+    end
+  end
 
-	it "creates new user" do
-		with_storage do |storage|
-			storage.new_user "user", "123456", false
-			storage.new_user "admin", "123456", true
-		end
-	end
+  it "creates new user" do
+    with_storage do |storage|
+      storage.new_user "user", "123456", false
+      storage.new_user "admin", "123456", true
+    end
+  end
 
-	it "verifies username/password combination" do
-		with_storage do |storage|
-			user_token = storage.verify_user "user", "123456"
-			admin_token = storage.verify_user "admin", "123456"
-			user_token.should_not be_nil
-			admin_token.should_not be_nil
-			State.set "user_token", user_token
-			State.set "admin_token", admin_token
-		end
-	end
+  it "verifies username/password combination" do
+    with_storage do |storage|
+      user_token = storage.verify_user "user", "123456"
+      admin_token = storage.verify_user "admin", "123456"
+      user_token.should_not be_nil
+      admin_token.should_not be_nil
+      State.set "user_token", user_token
+      State.set "admin_token", admin_token
+    end
+  end
 
-	it "rejects duplicate username" do
-		with_storage do |storage|
-			expect_raises SQLite3::Exception,
-				"UNIQUE constraint failed: users.username" do
-				storage.new_user "admin", "123456", true
-			end
-		end
-	end
+  it "rejects duplicate username" do
+    with_storage do |storage|
+      expect_raises SQLite3::Exception,
+        "UNIQUE constraint failed: users.username" do
+        storage.new_user "admin", "123456", true
+      end
+    end
+  end
 
-	it "verifies token" do
-		with_storage do |storage|
-			user_token = State.get! "user_token"
-			user = storage.verify_token user_token
-			user.should eq "user"
-		end
-	end
+  it "verifies token" do
+    with_storage do |storage|
+      user_token = State.get! "user_token"
+      user = storage.verify_token user_token
+      user.should eq "user"
+    end
+  end
 
-	it "verfies admin token" do
-		with_storage do |storage|
-			admin_token = State.get! "admin_token"
-			storage.verify_admin(admin_token).should be_true
-		end
-	end
+  it "verfies admin token" do
+    with_storage do |storage|
+      admin_token = State.get! "admin_token"
+      storage.verify_admin(admin_token).should be_true
+    end
+  end
 
-	it "rejects non-admin token" do
-		with_storage do |storage|
-			user_token = State.get! "user_token"
-			storage.verify_admin(user_token).should be_false
-		end
-	end
+  it "rejects non-admin token" do
+    with_storage do |storage|
+      user_token = State.get! "user_token"
+      storage.verify_admin(user_token).should be_false
+    end
+  end
 
-	it "updates user" do
-		with_storage do |storage|
-			storage.update_user "admin", "admin", "654321", true
-			token = storage.verify_user "admin", "654321"
-			admin_token = State.get! "admin_token"
-			token.should eq admin_token
-		end
-	end
+  it "updates user" do
+    with_storage do |storage|
+      storage.update_user "admin", "admin", "654321", true
+      token = storage.verify_user "admin", "654321"
+      admin_token = State.get! "admin_token"
+      token.should eq admin_token
+    end
+  end
 
-	it "logs user out" do
-		with_storage do |storage|
-			user_token = State.get! "user_token"
-			admin_token = State.get! "admin_token"
-			storage.logout user_token
-			storage.logout admin_token
-			storage.verify_token(user_token).should be_nil
-			storage.verify_token(admin_token).should be_nil
-		end
-	end
+  it "logs user out" do
+    with_storage do |storage|
+      user_token = State.get! "user_token"
+      admin_token = State.get! "admin_token"
+      storage.logout user_token
+      storage.logout admin_token
+      storage.verify_token(user_token).should be_nil
+      storage.verify_token(admin_token).should be_nil
+    end
+  end
 
-	it "cleans up" do
-		with_storage do
-			true
-		end
-		State.reset
-	end
+  it "cleans up" do
+    with_storage do
+      true
+    end
+    State.reset
+  end
 end
diff --git a/spec/util_spec.cr b/spec/util_spec.cr
index 47e26d6..da2bb66 100644
--- a/spec/util_spec.cr
+++ b/spec/util_spec.cr
@@ -1,36 +1,36 @@
 require "./spec_helper"
 
 describe "compare_alphanumerically" do
-	it "sorts filenames with leading zeros correctly" do
-		ary = ["010.jpg", "001.jpg", "002.png"]
-		ary.sort! {|a, b|
-			compare_alphanumerically a, b
-		}
-		ary.should eq ["001.jpg", "002.png", "010.jpg"]
-	end
+  it "sorts filenames with leading zeros correctly" do
+    ary = ["010.jpg", "001.jpg", "002.png"]
+    ary.sort! { |a, b|
+      compare_alphanumerically a, b
+    }
+    ary.should eq ["001.jpg", "002.png", "010.jpg"]
+  end
 
-	it "sorts filenames without leading zeros correctly" do
-		ary = ["10.jpg", "1.jpg", "0.png", "0100.jpg"]
-		ary.sort! {|a, b|
-			compare_alphanumerically a, b
-		}
-		ary.should eq ["0.png", "1.jpg", "10.jpg", "0100.jpg"]
-	end
+  it "sorts filenames without leading zeros correctly" do
+    ary = ["10.jpg", "1.jpg", "0.png", "0100.jpg"]
+    ary.sort! { |a, b|
+      compare_alphanumerically a, b
+    }
+    ary.should eq ["0.png", "1.jpg", "10.jpg", "0100.jpg"]
+  end
 
-	# https://ux.stackexchange.com/a/95441
-	it "sorts like the stack exchange post" do
-		ary = ["2", "12", "200000", "1000000", "a", "a12", "b2", "text2",
-		 "text2a", "text2a2", "text2a12", "text2ab", "text12", "text12a"]
-		ary.reverse.sort {|a, b|
-			compare_alphanumerically a, b
-		}.should eq ary
-	end
+  # https://ux.stackexchange.com/a/95441
+  it "sorts like the stack exchange post" do
+    ary = ["2", "12", "200000", "1000000", "a", "a12", "b2", "text2",
+           "text2a", "text2a2", "text2a12", "text2ab", "text12", "text12a"]
+    ary.reverse.sort { |a, b|
+      compare_alphanumerically a, b
+    }.should eq ary
+  end
 
-	# https://github.com/hkalexling/Mango/issues/22
-	it "handles numbers larger than Int32" do
-		ary = ["14410155591588.jpg", "21410155591588.png", "104410155591588.jpg"]
-		ary.reverse.sort {|a, b|
-			compare_alphanumerically a, b
-		}.should eq ary
-	end
+  # https://github.com/hkalexling/Mango/issues/22
+  it "handles numbers larger than Int32" do
+    ary = ["14410155591588.jpg", "21410155591588.png", "104410155591588.jpg"]
+    ary.reverse.sort { |a, b|
+      compare_alphanumerically a, b
+    }.should eq ary
+  end
 end
diff --git a/src/auth_handler.cr b/src/auth_handler.cr
index b624b22..1a29b52 100644
--- a/src/auth_handler.cr
+++ b/src/auth_handler.cr
@@ -3,24 +3,23 @@ require "./storage"
 require "./util"
 
 class AuthHandler < Kemal::Handler
-	def initialize(@storage : Storage)
-	end
+  def initialize(@storage : Storage)
+  end
 
-	def call(env)
-		return call_next(env) \
-			if request_path_startswith env, ["/login", "/logout"]
+  def call(env)
+    return call_next(env) if request_path_startswith env, ["/login", "/logout"]
 
-		cookie = env.request.cookies.find { |c| c.name == "token" }
-		if cookie.nil? || ! @storage.verify_token cookie.value
-			return env.redirect "/login"
-		end
+    cookie = env.request.cookies.find { |c| c.name == "token" }
+    if cookie.nil? || !@storage.verify_token cookie.value
+      return env.redirect "/login"
+    end
 
-		if request_path_startswith env, ["/admin", "/api/admin", "/download"]
-			unless @storage.verify_admin cookie.value
-				env.response.status_code = 403
-			end
-		end
+    if request_path_startswith env, ["/admin", "/api/admin", "/download"]
+      unless @storage.verify_admin cookie.value
+        env.response.status_code = 403
+      end
+    end
 
-		call_next env
-	end
+    call_next env
+  end
 end
diff --git a/src/config.cr b/src/config.cr
index 18be18b..b9caffc 100644
--- a/src/config.cr
+++ b/src/config.cr
@@ -1,60 +1,58 @@
 require "yaml"
 
 class Config
-	include YAML::Serializable
+  include YAML::Serializable
 
-	property port : Int32 = 9000
-	property library_path : String = \
-		File.expand_path "~/mango/library", home: true
-	property db_path : String = \
-		File.expand_path "~/mango/mango.db", home: true
-	@[YAML::Field(key: "scan_interval_minutes")]
-	property scan_interval : Int32 = 5
-	property log_level : String = "info"
-	property mangadex = Hash(String, String|Int32).new
+  property port : Int32 = 9000
+  property library_path : String = File.expand_path "~/mango/library", home: true
+  property db_path : String = File.expand_path "~/mango/mango.db", home: true
+  @[YAML::Field(key: "scan_interval_minutes")]
+  property scan_interval : Int32 = 5
+  property log_level : String = "info"
+  property mangadex = Hash(String, String | Int32).new
 
-	@[YAML::Field(ignore: true)]
-	@mangadex_defaults = {
-		"base_url" => "https://mangadex.org",
-		"api_url" => "https://mangadex.org/api",
-		"download_wait_seconds" => 5,
-		"download_retries" => 4,
-		"download_queue_db_path" => File.expand_path "~/mango/queue.db",
-			home: true
-	}
+  @[YAML::Field(ignore: true)]
+  @mangadex_defaults = {
+    "base_url"               => "https://mangadex.org",
+    "api_url"                => "https://mangadex.org/api",
+    "download_wait_seconds"  => 5,
+    "download_retries"       => 4,
+    "download_queue_db_path" => File.expand_path("~/mango/queue.db",
+      home: true),
+  }
 
-	def self.load(path : String?)
-		path = "~/.config/mango/config.yml" if path.nil?
-		cfg_path = File.expand_path path, home: true
-		if File.exists? cfg_path
-			config = self.from_yaml File.read cfg_path
-			config.fill_defaults
-			return config
-		end
-		puts "The config file #{cfg_path} does not exist." \
-			" Do you want mango to dump the default config there? [Y/n]"
-		input = gets
-		if input && input.downcase == "n"
-			abort "Aborting..."
-		end
-		default = self.allocate
-		default.fill_defaults
-		cfg_dir = File.dirname cfg_path
-		unless Dir.exists? cfg_dir
-			Dir.mkdir_p cfg_dir
-		end
-		File.write cfg_path, default.to_yaml
-		puts "The config file has been created at #{cfg_path}."
-		default
-	end
+  def self.load(path : String?)
+    path = "~/.config/mango/config.yml" if path.nil?
+    cfg_path = File.expand_path path, home: true
+    if File.exists? cfg_path
+      config = self.from_yaml File.read cfg_path
+      config.fill_defaults
+      return config
+    end
+    puts "The config file #{cfg_path} does not exist." \
+         " Do you want mango to dump the default config there? [Y/n]"
+    input = gets
+    if input && input.downcase == "n"
+      abort "Aborting..."
+    end
+    default = self.allocate
+    default.fill_defaults
+    cfg_dir = File.dirname cfg_path
+    unless Dir.exists? cfg_dir
+      Dir.mkdir_p cfg_dir
+    end
+    File.write cfg_path, default.to_yaml
+    puts "The config file has been created at #{cfg_path}."
+    default
+  end
 
-	def fill_defaults
-		{% for hash_name in ["mangadex"] %}
-			@{{hash_name.id}}_defaults.map do |k, v|
-				if @{{hash_name.id}}[k]?.nil?
-					@{{hash_name.id}}[k] = v
-				end
-			end
-		{% end %}
-	end
+  def fill_defaults
+    {% for hash_name in ["mangadex"] %}
+      @{{hash_name.id}}_defaults.map do |k, v|
+        if @{{hash_name.id}}[k]?.nil?
+          @{{hash_name.id}}[k] = v
+        end
+      end
+    {% end %}
+  end
 end
diff --git a/src/context.cr b/src/context.cr
index edafd6e..a4e4d4b 100644
--- a/src/context.cr
+++ b/src/context.cr
@@ -4,18 +4,18 @@ require "./storage"
 require "./logger"
 
 class Context
-	property config : Config
-	property library : Library
-	property storage : Storage
-	property logger : Logger
-	property queue : MangaDex::Queue
+  property config : Config
+  property library : Library
+  property storage : Storage
+  property logger : Logger
+  property queue : MangaDex::Queue
 
-	def initialize(@config, @logger, @library, @storage, @queue)
-	end
+  def initialize(@config, @logger, @library, @storage, @queue)
+  end
 
-	{% for lvl in Logger::LEVELS %}
-		def {{lvl.id}}(msg)
-			@logger.{{lvl.id}} msg
-		end
-	{% end %}
+  {% for lvl in Logger::LEVELS %}
+      def {{lvl.id}}(msg)
+          @logger.{{lvl.id}} msg
+      end
+  {% end %}
 end
diff --git a/src/library.cr b/src/library.cr
index 59d2c2f..0e8368c 100644
--- a/src/library.cr
+++ b/src/library.cr
@@ -5,359 +5,364 @@ require "uri"
 require "./util"
 
 struct Image
-	property data : Bytes
-	property mime : String
-	property filename : String
-	property size : Int32
+  property data : Bytes
+  property mime : String
+  property filename : String
+  property size : Int32
 
-	def initialize(@data, @mime, @filename, @size)
-	end
+  def initialize(@data, @mime, @filename, @size)
+  end
 end
 
 class Entry
-	property zip_path : String, book : Title, title : String,
-		size : String, pages : Int32, cover_url : String, id : String,
-		title_id : String, encoded_path : String, encoded_title : String,
-		mtime : Time
+  property zip_path : String, book : Title, title : String,
+    size : String, pages : Int32, cover_url : String, id : String,
+    title_id : String, encoded_path : String, encoded_title : String,
+    mtime : Time
 
-	def initialize(path, @book, @title_id, storage)
-		@zip_path = path
-		@encoded_path = URI.encode path
-		@title = File.basename path, File.extname path
-		@encoded_title = URI.encode @title
-		@size = (File.size path).humanize_bytes
-		file = Zip::File.new path
-		@pages = file.entries
-			.select { |e|
-				["image/jpeg", "image/png"].includes? \
-				MIME.from_filename? e.filename
-			}
-			.size
-		file.close
-		@id = storage.get_id @zip_path, false
-		@cover_url = "/api/page/#{@title_id}/#{@id}/1"
-		@mtime = File.info(@zip_path).modification_time
-	end
+  def initialize(path, @book, @title_id, storage)
+    @zip_path = path
+    @encoded_path = URI.encode path
+    @title = File.basename path, File.extname path
+    @encoded_title = URI.encode @title
+    @size = (File.size path).humanize_bytes
+    file = Zip::File.new path
+    @pages = file.entries
+      .select { |e|
+        ["image/jpeg", "image/png"].includes? \
+          MIME.from_filename? e.filename
+      }
+      .size
+    file.close
+    @id = storage.get_id @zip_path, false
+    @cover_url = "/api/page/#{@title_id}/#{@id}/1"
+    @mtime = File.info(@zip_path).modification_time
+  end
 
-	def to_json(json : JSON::Builder)
-		json.object do
-			{% for str in ["zip_path", "title", "size", "cover_url", "id",
-					"title_id", "encoded_path", "encoded_title"] %}
-				json.field {{str}}, @{{str.id}}
-			{% end %}
-			json.field "display_name", @book.display_name @title
-			json.field "pages" {json.number @pages}
-			json.field "mtime" {json.number @mtime.to_unix}
-		end
-	end
+  def to_json(json : JSON::Builder)
+    json.object do
+      {% for str in ["zip_path", "title", "size", "cover_url", "id",
+                     "title_id", "encoded_path", "encoded_title"] %}
+        json.field {{str}}, @{{str.id}}
+      {% end %}
+      json.field "display_name", @book.display_name @title
+      json.field "pages" { json.number @pages }
+      json.field "mtime" { json.number @mtime.to_unix }
+    end
+  end
 
-	def display_name
-		@book.display_name @title
-	end
+  def display_name
+    @book.display_name @title
+  end
 
-	def encoded_display_name
-		URI.encode display_name
-	end
+  def encoded_display_name
+    URI.encode display_name
+  end
 
-	def read_page(page_num)
-		Zip::File.open @zip_path do |file|
-			page = file.entries
-				.select { |e|
-					["image/jpeg", "image/png"].includes? \
-					MIME.from_filename? e.filename
-				}
-				.sort { |a, b|
-					compare_alphanumerically a.filename, b.filename
-				}
-				.[page_num - 1]
-			page.open do |io|
-				slice = Bytes.new page.uncompressed_size
-				bytes_read = io.read_fully? slice
-				unless bytes_read
-					return nil
-				end
-				return Image.new slice, MIME.from_filename(page.filename),\
-					page.filename, bytes_read
-			end
-		end
-	end
+  def read_page(page_num)
+    Zip::File.open @zip_path do |file|
+      page = file.entries
+        .select { |e|
+          ["image/jpeg", "image/png"].includes? \
+            MIME.from_filename? e.filename
+        }
+        .sort { |a, b|
+          compare_alphanumerically a.filename, b.filename
+        }
+        .[page_num - 1]
+      page.open do |io|
+        slice = Bytes.new page.uncompressed_size
+        bytes_read = io.read_fully? slice
+        unless bytes_read
+          return nil
+        end
+        return Image.new slice, MIME.from_filename(page.filename),
+          page.filename, bytes_read
+      end
+    end
+  end
 end
 
 class Title
-	property dir : String, parent_id : String, title_ids : Array(String),
-		entries : Array(Entry), title : String, id : String,
-		encoded_title : String, mtime : Time
+  property dir : String, parent_id : String, title_ids : Array(String),
+    entries : Array(Entry), title : String, id : String,
+    encoded_title : String, mtime : Time
 
-	def initialize(@dir : String, @parent_id, storage,
-				   @logger : Logger, @library : Library)
-		@id = storage.get_id @dir, true
-		@title = File.basename dir
-		@encoded_title = URI.encode @title
-		@title_ids = [] of String
-		@entries = [] of Entry
-		@mtime = File.info(dir).modification_time
+  def initialize(@dir : String, @parent_id, storage,
+                 @logger : Logger, @library : Library)
+    @id = storage.get_id @dir, true
+    @title = File.basename dir
+    @encoded_title = URI.encode @title
+    @title_ids = [] of String
+    @entries = [] of Entry
+    @mtime = File.info(dir).modification_time
 
-		Dir.entries(dir).each do |fn|
-			next if fn.starts_with? "."
-			path = File.join dir, fn
-			if File.directory? path
-				title = Title.new path, @id, storage, @logger, library
-				next if title.entries.size == 0 && title.titles.size == 0
-				@library.title_hash[title.id] = title
-				@title_ids << title.id
-				next
-			end
-			if [".zip", ".cbz"].includes? File.extname path
-				next if !valid_zip path
-				entry = Entry.new path, self, @id, storage
-				@entries << entry if entry.pages > 0
-			end
-		end
+    Dir.entries(dir).each do |fn|
+      next if fn.starts_with? "."
+      path = File.join dir, fn
+      if File.directory? path
+        title = Title.new path, @id, storage, @logger, library
+        next if title.entries.size == 0 && title.titles.size == 0
+        @library.title_hash[title.id] = title
+        @title_ids << title.id
+        next
+      end
+      if [".zip", ".cbz"].includes? File.extname path
+        next if !valid_zip path
+        entry = Entry.new path, self, @id, storage
+        @entries << entry if entry.pages > 0
+      end
+    end
 
-		mtimes = [@mtime]
-		mtimes += @title_ids.map{|e| @library.title_hash[e].mtime}
-		mtimes += @entries.map{|e| e.mtime}
-		@mtime = mtimes.max
+    mtimes = [@mtime]
+    mtimes += @title_ids.map { |e| @library.title_hash[e].mtime }
+    mtimes += @entries.map { |e| e.mtime }
+    @mtime = mtimes.max
 
-		@title_ids.sort! do |a, b|
-			compare_alphanumerically @library.title_hash[a].title,
-				@library.title_hash[b].title
-		end
-		@entries.sort! do |a, b|
-			compare_alphanumerically a.title, b.title
-		end
-	end
+    @title_ids.sort! do |a, b|
+      compare_alphanumerically @library.title_hash[a].title,
+        @library.title_hash[b].title
+    end
+    @entries.sort! do |a, b|
+      compare_alphanumerically a.title, b.title
+    end
+  end
 
-	def to_json(json : JSON::Builder)
-		json.object do
-			{% for str in ["dir", "title", "id", "encoded_title"] %}
-				json.field {{str}}, @{{str.id}}
-			{% end %}
-			json.field "display_name", display_name
-			json.field "mtime" {json.number @mtime.to_unix}
-			json.field "titles" do
-				json.raw self.titles.to_json
-			end
-			json.field "entries" do
-				json.raw @entries.to_json
-			end
-			json.field "parents" do
-				json.array do
-					self.parents.each do |title|
-						json.object do
-							json.field "title", title.title
-							json.field "id", title.id
-						end
-					end
-				end
-			end
-		end
-	end
+  def to_json(json : JSON::Builder)
+    json.object do
+      {% for str in ["dir", "title", "id", "encoded_title"] %}
+        json.field {{str}}, @{{str.id}}
+      {% end %}
+      json.field "display_name", display_name
+      json.field "mtime" { json.number @mtime.to_unix }
+      json.field "titles" do
+        json.raw self.titles.to_json
+      end
+      json.field "entries" do
+        json.raw @entries.to_json
+      end
+      json.field "parents" do
+        json.array do
+          self.parents.each do |title|
+            json.object do
+              json.field "title", title.title
+              json.field "id", title.id
+            end
+          end
+        end
+      end
+    end
+  end
 
-	def titles
-		@title_ids.map {|tid| @library.get_title! tid}
-	end
+  def titles
+    @title_ids.map { |tid| @library.get_title! tid }
+  end
 
-	def parents
-		ary = [] of Title
-		tid = @parent_id
-		while !tid.empty?
-			title = @library.get_title! tid
-			ary << title
-			tid = title.parent_id
-		end
-		ary
-	end
+  def parents
+    ary = [] of Title
+    tid = @parent_id
+    while !tid.empty?
+      title = @library.get_title! tid
+      ary << title
+      tid = title.parent_id
+    end
+    ary
+  end
 
-	def size
-		@entries.size + @title_ids.size
-	end
+  def size
+    @entries.size + @title_ids.size
+  end
 
-	# When downloading from MangaDex, the zip/cbz file would not be valid
-	#	before the download is completed. If we scan the zip file,
-	#	Entry.new would throw, so we use this method to check before
-	#	constructing Entry
-	private def valid_zip(path : String)
-		begin
-			file = Zip::File.new path
-			file.close
-			return true
-		rescue
-			@logger.warn "File #{path} is corrupted or is not a valid zip "\
-				"archive. Ignoring it."
-			return false
-		end
-	end
+  # When downloading from MangaDex, the zip/cbz file would not be valid
+  #   before the download is completed. If we scan the zip file,
+  #   Entry.new would throw, so we use this method to check before
+  #   constructing Entry
+  private def valid_zip(path : String)
+    begin
+      file = Zip::File.new path
+      file.close
+      return true
+    rescue
+      @logger.warn "File #{path} is corrupted or is not a valid zip " \
+                   "archive. Ignoring it."
+      return false
+    end
+  end
 
-	def get_entry(eid)
-		@entries.find { |e| e.id == eid }
-	end
+  def get_entry(eid)
+    @entries.find { |e| e.id == eid }
+  end
 
-	def display_name
-		info = TitleInfo.new @dir
-		dn = info.display_name
-		dn.empty? ? @title : dn
-	end
+  def display_name
+    info = TitleInfo.new @dir
+    dn = info.display_name
+    dn.empty? ? @title : dn
+  end
 
-	def encoded_display_name
-		URI.encode display_name
-	end
+  def encoded_display_name
+    URI.encode display_name
+  end
 
-	def display_name(entry_name)
-		info = TitleInfo.new @dir
-		dn = info.entry_display_name[entry_name]?
-		unless dn.nil? || dn.empty?
-			return dn
-		end
-		entry_name
-	end
+  def display_name(entry_name)
+    info = TitleInfo.new @dir
+    dn = info.entry_display_name[entry_name]?
+    unless dn.nil? || dn.empty?
+      return dn
+    end
+    entry_name
+  end
 
-	def set_display_name(dn)
-		info = TitleInfo.new @dir
-		info.display_name = dn
-		info.save
-	end
+  def set_display_name(dn)
+    info = TitleInfo.new @dir
+    info.display_name = dn
+    info.save
+  end
 
-	def set_display_name(entry_name : String, dn)
-		info = TitleInfo.new @dir
-		info.entry_display_name[entry_name] = dn
-		info.save
-	end
+  def set_display_name(entry_name : String, dn)
+    info = TitleInfo.new @dir
+    info.entry_display_name[entry_name] = dn
+    info.save
+  end
 
-	# For backward backward compatibility with v0.1.0, we save entry titles
-	#	instead of IDs in info.json
-	def save_progress(username, entry, page)
-		info = TitleInfo.new @dir
-		if info.progress[username]?.nil?
-			info.progress[username] = {entry => page}
-			info.save
-			return
-		end
-		info.progress[username][entry] = page
-		info.save
-	end
+  # For backward backward compatibility with v0.1.0, we save entry titles
+  #   instead of IDs in info.json
+  def save_progress(username, entry, page)
+    info = TitleInfo.new @dir
+    if info.progress[username]?.nil?
+      info.progress[username] = {entry => page}
+      info.save
+      return
+    end
+    info.progress[username][entry] = page
+    info.save
+  end
 
-	def load_progress(username, entry)
-		info = TitleInfo.new @dir
-		if info.progress[username]?.nil?
-			return 0
-		end
-		if info.progress[username][entry]?.nil?
-			return 0
-		end
-		info.progress[username][entry]
-	end
+  def load_progress(username, entry)
+    info = TitleInfo.new @dir
+    if info.progress[username]?.nil?
+      return 0
+    end
+    if info.progress[username][entry]?.nil?
+      return 0
+    end
+    info.progress[username][entry]
+  end
 
-	def load_percetage(username, entry)
-		info = TitleInfo.new @dir
-		page = load_progress username, entry
-		entry_obj = @entries.find{|e| e.title == entry}
-		return 0.0 if entry_obj.nil?
-		page / entry_obj.pages
-	end
+  def load_percetage(username, entry)
+    info = TitleInfo.new @dir
+    page = load_progress username, entry
+    entry_obj = @entries.find { |e| e.title == entry }
+    return 0.0 if entry_obj.nil?
+    page / entry_obj.pages
+  end
 
-	def load_percetage(username)
-		return 0.0 if @entries.empty?
-		read_pages = total_pages = 0
-		@entries.each do |e|
-			read_pages += load_progress username, e.title
-			total_pages += e.pages
-		end
-		read_pages / total_pages
-	end
+  def load_percetage(username)
+    return 0.0 if @entries.empty?
+    read_pages = total_pages = 0
+    @entries.each do |e|
+      read_pages += load_progress username, e.title
+      total_pages += e.pages
+    end
+    read_pages / total_pages
+  end
 
-	def next_entry(current_entry_obj)
-		idx = @entries.index current_entry_obj
-		return nil if idx.nil? || idx == @entries.size - 1
-		@entries[idx + 1]
-	end
+  def next_entry(current_entry_obj)
+    idx = @entries.index current_entry_obj
+    return nil if idx.nil? || idx == @entries.size - 1
+    @entries[idx + 1]
+  end
 end
 
 class TitleInfo
-	include JSON::Serializable
+  include JSON::Serializable
 
-	property comment = "Generated by Mango. DO NOT EDIT!"
-	# { user1: { entry1: 10, entry2: 0 } }
-	property progress = {} of String => Hash(String, Int32)
-	property display_name = ""
-	# { entry1 : "display name" }
-	property entry_display_name = {} of String => String
+  property comment = "Generated by Mango. DO NOT EDIT!"
+  # { user1: { entry1: 10, entry2: 0 } }
+  property progress = {} of String => Hash(String, Int32)
+  property display_name = ""
+  # { entry1 : "display name" }
+  property entry_display_name = {} of String => String
 
-	@[JSON::Field(ignore: true)]
-	property dir : String = ""
+  @[JSON::Field(ignore: true)]
+  property dir : String = ""
 
-	def initialize(@dir)
-		json_path = File.join @dir, "info.json"
-		if File.exists? json_path
-			info = TitleInfo.from_json File.read json_path
-			@progress = info.progress.clone
-			@display_name = info.display_name
-			@entry_display_name = info.entry_display_name.clone
-		end
-	end
+  def initialize(@dir)
+    json_path = File.join @dir, "info.json"
+    if File.exists? json_path
+      info = TitleInfo.from_json File.read json_path
+      @progress = info.progress.clone
+      @display_name = info.display_name
+      @entry_display_name = info.entry_display_name.clone
+    end
+  end
 
-	def save
-		json_path = File.join @dir, "info.json"
-		File.write json_path, self.to_pretty_json
-	end
+  def save
+    json_path = File.join @dir, "info.json"
+    File.write json_path, self.to_pretty_json
+  end
 end
 
 class Library
-	property dir : String, title_ids : Array(String), scan_interval : Int32,
-		logger : Logger, storage : Storage, title_hash : Hash(String, Title)
+  property dir : String, title_ids : Array(String), scan_interval : Int32,
+    logger : Logger, storage : Storage, title_hash : Hash(String, Title)
 
-	def initialize(@dir, @scan_interval, @logger, @storage)
-		# explicitly initialize @titles to bypass the compiler check. it will
-		#	be filled with actual Titles in the `scan` call below
-		@title_ids = [] of String
-		@title_hash = {} of String => Title
+  def initialize(@dir, @scan_interval, @logger, @storage)
+    # explicitly initialize @titles to bypass the compiler check. it will
+    #   be filled with actual Titles in the `scan` call below
+    @title_ids = [] of String
+    @title_hash = {} of String => Title
 
-		return scan if @scan_interval < 1
-		spawn do
-			loop do
-				start = Time.local
-				scan
-				ms = (Time.local - start).total_milliseconds
-				@logger.info "Scanned #{@title_ids.size} titles in #{ms}ms"
-				sleep @scan_interval * 60
-			end
-		end
-	end
-	def titles
-		@title_ids.map {|tid| self.get_title!(tid) }
-	end
-	def to_json(json : JSON::Builder)
-		json.object do
-			json.field "dir", @dir
-			json.field "titles" do
-				json.raw self.titles.to_json
-			end
-		end
-	end
-	def get_title(tid)
-		@title_hash[tid]?
-	end
-	def get_title!(tid)
-		@title_hash[tid]
-	end
-	def scan
-		unless Dir.exists? @dir
-			@logger.info "The library directory #{@dir} does not exist. " \
-				"Attempting to create it"
-			Dir.mkdir_p @dir
-		end
-		@title_ids.clear
-		(Dir.entries @dir)
-			.select { |fn| !fn.starts_with? "." }
-			.map { |fn| File.join @dir, fn }
-			.select { |path| File.directory? path }
-			.map { |path| Title.new path, "", @storage, @logger, self }
-			.select { |title| !(title.entries.empty? && title.titles.empty?) }
-			.sort { |a, b| a.title <=> b.title }
-			.each do |title|
-				@title_hash[title.id] = title
-				@title_ids << title.id
-			end
-		@logger.debug "Scan completed"
-	end
+    return scan if @scan_interval < 1
+    spawn do
+      loop do
+        start = Time.local
+        scan
+        ms = (Time.local - start).total_milliseconds
+        @logger.info "Scanned #{@title_ids.size} titles in #{ms}ms"
+        sleep @scan_interval * 60
+      end
+    end
+  end
+
+  def titles
+    @title_ids.map { |tid| self.get_title!(tid) }
+  end
+
+  def to_json(json : JSON::Builder)
+    json.object do
+      json.field "dir", @dir
+      json.field "titles" do
+        json.raw self.titles.to_json
+      end
+    end
+  end
+
+  def get_title(tid)
+    @title_hash[tid]?
+  end
+
+  def get_title!(tid)
+    @title_hash[tid]
+  end
+
+  def scan
+    unless Dir.exists? @dir
+      @logger.info "The library directory #{@dir} does not exist. " \
+                   "Attempting to create it"
+      Dir.mkdir_p @dir
+    end
+    @title_ids.clear
+    (Dir.entries @dir)
+      .select { |fn| !fn.starts_with? "." }
+      .map { |fn| File.join @dir, fn }
+      .select { |path| File.directory? path }
+      .map { |path| Title.new path, "", @storage, @logger, self }
+      .select { |title| !(title.entries.empty? && title.titles.empty?) }
+      .sort { |a, b| a.title <=> b.title }
+      .each do |title|
+        @title_hash[title.id] = title
+        @title_ids << title.id
+      end
+    @logger.debug "Scan completed"
+  end
 end
diff --git a/src/log_handler.cr b/src/log_handler.cr
index fb0bcca..e1a1f4f 100644
--- a/src/log_handler.cr
+++ b/src/log_handler.cr
@@ -2,25 +2,25 @@ require "kemal"
 require "./logger"
 
 class LogHandler < Kemal::BaseLogHandler
-	def initialize(@logger : Logger)
-	end
+  def initialize(@logger : Logger)
+  end
 
-	def call(env)
-		elapsed_time = Time.measure { call_next env }
-		elapsed_text = elapsed_text elapsed_time
-		msg = "#{env.response.status_code} #{env.request.method}" \
-			" #{env.request.resource} #{elapsed_text}"
-		@logger.debug(msg)
-		env
-	end
+  def call(env)
+    elapsed_time = Time.measure { call_next env }
+    elapsed_text = elapsed_text elapsed_time
+    msg = "#{env.response.status_code} #{env.request.method}" \
+          " #{env.request.resource} #{elapsed_text}"
+    @logger.debug msg
+    env
+  end
 
-	def write(msg)
-		@logger.debug(msg)
-	end
+  def write(msg)
+    @logger.debug msg
+  end
 
-	private def elapsed_text(elapsed)
-		millis = elapsed.total_milliseconds
-		return "#{millis.round(2)}ms" if millis >= 1
-		"#{(millis * 1000).round(2)}µs"
-	end
+  private def elapsed_text(elapsed)
+    millis = elapsed.total_milliseconds
+    return "#{millis.round(2)}ms" if millis >= 1
+    "#{(millis * 1000).round(2)}µs"
+  end
 end
diff --git a/src/logger.cr b/src/logger.cr
index f00c73b..6a7536a 100644
--- a/src/logger.cr
+++ b/src/logger.cr
@@ -2,57 +2,57 @@ require "log"
 require "colorize"
 
 class Logger
-	LEVELS = ["debug", "error", "fatal", "info", "warn"]
-	SEVERITY_IDS = [0, 4, 5, 2, 3]
-	COLORS = [:light_cyan, :light_red, :red, :light_yellow, :light_magenta]
+  LEVELS       = ["debug", "error", "fatal", "info", "warn"]
+  SEVERITY_IDS = [0, 4, 5, 2, 3]
+  COLORS       = [:light_cyan, :light_red, :red, :light_yellow, :light_magenta]
 
-	@@severity : Log::Severity = :info
+  @@severity : Log::Severity = :info
 
-	def initialize(level : String)
-		{% begin %}
-			case level.downcase
-			when "off"
-				@@severity = :none
-				{% for lvl, i in LEVELS %}
-				when {{lvl}}
-					@@severity = Log::Severity.new SEVERITY_IDS[{{i}}]
-				{% end %}
-			else
-				raise "Unknown log level #{level}"
-			end
-		{% end %}
+  def initialize(level : String)
+    {% begin %}
+      case level.downcase
+      when "off"
+        @@severity = :none
+        {% for lvl, i in LEVELS %}
+        when {{lvl}}
+          @@severity = Log::Severity.new SEVERITY_IDS[{{i}}]
+        {% end %}
+      else
+        raise "Unknown log level #{level}"
+      end
+    {% end %}
 
-		@log = Log.for("")
+    @log = Log.for("")
 
-		@backend = Log::IOBackend.new
-		@backend.formatter = ->(entry : Log::Entry, io : IO) do
-			color = :default
-			{% begin %}
-				case entry.severity.label.to_s().downcase
-					{% for lvl, i in LEVELS %}
-					when {{lvl}}, "#{{{lvl}}}ing"
-						color = COLORS[{{i}}]
-					{% end %}
-				else
-				end
-			{% end %}
+    @backend = Log::IOBackend.new
+    @backend.formatter = ->(entry : Log::Entry, io : IO) do
+      color = :default
+      {% begin %}
+        case entry.severity.label.to_s().downcase
+          {% for lvl, i in LEVELS %}
+          when {{lvl}}, "#{{{lvl}}}ing"
+            color = COLORS[{{i}}]
+          {% end %}
+        else
+        end
+      {% end %}
 
-			io << "[#{entry.severity.label}]".ljust(10).colorize(color)
-			io << entry.timestamp.to_s("%Y/%m/%d %H:%M:%S") << " | "
-			io << entry.message
-		end
+      io << "[#{entry.severity.label}]".ljust(10).colorize(color)
+      io << entry.timestamp.to_s("%Y/%m/%d %H:%M:%S") << " | "
+      io << entry.message
+    end
 
-		Log.builder.bind "*", @@severity, @backend
-	end
+    Log.builder.bind "*", @@severity, @backend
+  end
 
-	# Ignores @@severity and always log msg
-	def log(msg)
-		@backend.write Log::Entry.new "", Log::Severity::None, msg, nil
-	end
+  # Ignores @@severity and always log msg
+  def log(msg)
+    @backend.write Log::Entry.new "", Log::Severity::None, msg, nil
+  end
 
-	{% for lvl in LEVELS %}
-		def {{lvl.id}}(msg)
-			@log.{{lvl.id}} { msg }
-		end
-	{% end %}
+  {% for lvl in LEVELS %}
+    def {{lvl.id}}(msg)
+      @log.{{lvl.id}} { msg }
+    end
+  {% end %}
 end
diff --git a/src/mangadex/api.cr b/src/mangadex/api.cr
index 0cf181c..e79320b 100644
--- a/src/mangadex/api.cr
+++ b/src/mangadex/api.cr
@@ -2,202 +2,200 @@ require "http/client"
 require "json"
 require "csv"
 
-macro string_properties (names)
-	{% for name in names %}
-		property {{name.id}} = ""
-	{% end %}
+macro string_properties(names)
+  {% for name in names %}
+    property {{name.id}} = ""
+  {% end %}
 end
 
-macro parse_strings_from_json (names)
-	{% for name in names %}
-		@{{name.id}} = obj[{{name}}].as_s
-	{% end %}
+macro parse_strings_from_json(names)
+  {% for name in names %}
+    @{{name.id}} = obj[{{name}}].as_s
+  {% end %}
 end
 
 module MangaDex
-	class Chapter
-		string_properties ["lang_code", "title", "volume", "chapter"]
-		property manga : Manga
-		property time = Time.local
-		property id : String
-		property full_title = ""
-		property language = ""
-		property pages = [] of {String, String} # filename, url
-		property groups = [] of {Int32, String} # group_id, group_name
+  class Chapter
+    string_properties ["lang_code", "title", "volume", "chapter"]
+    property manga : Manga
+    property time = Time.local
+    property id : String
+    property full_title = ""
+    property language = ""
+    property pages = [] of {String, String} # filename, url
+    property groups = [] of {Int32, String} # group_id, group_name
 
-		def initialize(@id, json_obj : JSON::Any, @manga, lang :
-					   Hash(String, String))
-			self.parse_json json_obj, lang
-		end
+    def initialize(@id, json_obj : JSON::Any, @manga,
+                   lang : Hash(String, String))
+      self.parse_json json_obj, lang
+    end
 
-		def to_info_json
-			JSON.build do |json|
-				json.object do
-					{% for name in ["id", "title", "volume", "chapter",
-							"language", "full_title"] %}
-						json.field {{name}}, @{{name.id}}
-					{% end %}
-					json.field "time", @time.to_unix.to_s
-					json.field "manga_title", @manga.title
-					json.field "manga_id", @manga.id
-					json.field "groups" do
-						json.object do
-							@groups.each do |gid, gname|
-								json.field gname, gid
-							end
-						end
-					end
-				end
-			end
-		end
+    def to_info_json
+      JSON.build do |json|
+        json.object do
+          {% for name in ["id", "title", "volume", "chapter",
+                          "language", "full_title"] %}
+          json.field {{name}}, @{{name.id}}
+        {% end %}
+          json.field "time", @time.to_unix.to_s
+          json.field "manga_title", @manga.title
+          json.field "manga_id", @manga.id
+          json.field "groups" do
+            json.object do
+              @groups.each do |gid, gname|
+                json.field gname, gid
+              end
+            end
+          end
+        end
+      end
+    end
 
-		def parse_json(obj, lang)
-			begin
-				parse_strings_from_json ["lang_code", "title", "volume",
-							 "chapter"]
-				language = lang[@lang_code]?
-				@language = language if language
-				@time = Time.unix obj["timestamp"].as_i
-				suffixes = ["", "_2", "_3"]
-				suffixes.each do |s|
-					gid = obj["group_id#{s}"].as_i
-					next if gid == 0
-					gname = obj["group_name#{s}"].as_s
-					@groups << {gid, gname}
-				end
-				@full_title = @title
-				unless @chapter.empty?
-					@full_title = "Ch.#{@chapter} " + @full_title
-				end
-				unless @volume.empty?
-					@full_title = "Vol.#{@volume} " + @full_title
-				end
-			rescue e
-				raise "failed to parse json: #{e}"
-			end
-		end
-	end
-	class Manga
-		string_properties ["cover_url", "description", "title", "author",
-					"artist"]
-		property chapters = [] of Chapter
-		property id : String
+    def parse_json(obj, lang)
+      begin
+        parse_strings_from_json ["lang_code", "title", "volume",
+                                 "chapter"]
+        language = lang[@lang_code]?
+        @language = language if language
+        @time = Time.unix obj["timestamp"].as_i
+        suffixes = ["", "_2", "_3"]
+        suffixes.each do |s|
+          gid = obj["group_id#{s}"].as_i
+          next if gid == 0
+          gname = obj["group_name#{s}"].as_s
+          @groups << {gid, gname}
+        end
+        @full_title = @title
+        unless @chapter.empty?
+          @full_title = "Ch.#{@chapter} " + @full_title
+        end
+        unless @volume.empty?
+          @full_title = "Vol.#{@volume} " + @full_title
+        end
+      rescue e
+        raise "failed to parse json: #{e}"
+      end
+    end
+  end
 
-		def initialize(@id, json_obj : JSON::Any)
-			self.parse_json json_obj
-		end
+  class Manga
+    string_properties ["cover_url", "description", "title", "author", "artist"]
+    property chapters = [] of Chapter
+    property id : String
 
-		def to_info_json(with_chapters = true)
-			JSON.build do |json|
-				json.object do
-					{% for name in ["id", "title", "description",
-							"author", "artist", "cover_url"] %}
-						json.field {{name}}, @{{name.id}}
-					{% end %}
-					if with_chapters
-						json.field "chapters" do
-							json.array do
-								@chapters.each do |c|
-									json.raw c.to_info_json
-								end
-							end
-						end
-					end
-				end
-			end
-		end
+    def initialize(@id, json_obj : JSON::Any)
+      self.parse_json json_obj
+    end
 
-		def parse_json(obj)
-			begin
-				parse_strings_from_json ["cover_url", "description", "title",
-							 "author", "artist"]
-			rescue e
-				raise "failed to parse json: #{e}"
-			end
-		end
-	end
-	class API
-		def initialize(@base_url = "https://mangadex.org/api/")
-			@lang = {} of String => String
-			CSV.each_row {{read_file "src/assets/lang_codes.csv"}} do |row|
-				@lang[row[1]] = row[0]
-			end
-		end
+    def to_info_json(with_chapters = true)
+      JSON.build do |json|
+        json.object do
+          {% for name in ["id", "title", "description", "author", "artist",
+                          "cover_url"] %}
+            json.field {{name}}, @{{name.id}}
+          {% end %}
+          if with_chapters
+            json.field "chapters" do
+              json.array do
+                @chapters.each do |c|
+                  json.raw c.to_info_json
+                end
+              end
+            end
+          end
+        end
+      end
+    end
 
-		def get(url)
-			headers = HTTP::Headers {
-				"User-agent" => "Mangadex.cr"
-			}
-			res = HTTP::Client.get url, headers
-			raise "Failed to get #{url}. [#{res.status_code}] "\
-				"#{res.status_message}" if !res.success?
-			JSON.parse res.body
-		end
+    def parse_json(obj)
+      begin
+        parse_strings_from_json ["cover_url", "description", "title", "author",
+                                 "artist"]
+      rescue e
+        raise "failed to parse json: #{e}"
+      end
+    end
+  end
 
-		def get_manga(id)
-			obj = self.get File.join @base_url, "manga/#{id}"
-			if obj["status"]? != "OK"
-				raise "Expecting `OK` in the `status` field. " \
-					"Got `#{obj["status"]?}`"
-			end
-			begin
-				manga = Manga.new id, obj["manga"]
-				obj["chapter"].as_h.map do |k, v|
-					chapter = Chapter.new k, v, manga, @lang
-					manga.chapters << chapter
-				end
-				return manga
-			rescue
-				raise "Failed to parse JSON"
-			end
-		end
+  class API
+    def initialize(@base_url = "https://mangadex.org/api/")
+      @lang = {} of String => String
+      CSV.each_row {{read_file "src/assets/lang_codes.csv"}} do |row|
+        @lang[row[1]] = row[0]
+      end
+    end
 
-		def get_chapter(chapter : Chapter)
-			obj = self.get File.join @base_url, "chapter/#{chapter.id}"
-			if obj["status"]? == "external"
-				raise "This chapter is hosted on an external site " \
-					"#{obj["external"]?}, and Mango does not support " \
-					"external chapters."
-			end
-			if obj["status"]? != "OK"
-				raise "Expecting `OK` in the `status` field. " \
-					"Got `#{obj["status"]?}`"
-			end
-			begin
-				server = obj["server"].as_s
-				hash = obj["hash"].as_s
-				chapter.pages = obj["page_array"].as_a.map do |fn|
-					{
-						fn.as_s,
-						"#{server}#{hash}/#{fn.as_s}"
-					}
-				end
-			rescue
-				raise "Failed to parse JSON"
-			end
-		end
+    def get(url)
+      headers = HTTP::Headers{
+        "User-agent" => "Mangadex.cr",
+      }
+      res = HTTP::Client.get url, headers
+      raise "Failed to get #{url}. [#{res.status_code}] " \
+            "#{res.status_message}" if !res.success?
+      JSON.parse res.body
+    end
 
-		def get_chapter(id : String)
-			obj = self.get File.join @base_url, "chapter/#{id}"
-			if obj["status"]? == "external"
-				raise "This chapter is hosted on an external site " \
-					"#{obj["external"]?}, and Mango does not support " \
-					"external chapters."
-			end
-			if obj["status"]? != "OK"
-				raise "Expecting `OK` in the `status` field. " \
-					"Got `#{obj["status"]?}`"
-			end
-			manga_id = ""
-			begin
-				manga_id = obj["manga_id"].as_i.to_s
-			rescue
-				raise "Failed to parse JSON"
-			end
-			manga = self.get_manga manga_id
-			chapter = manga.chapters.find {|c| c.id == id}.not_nil!
-			self.get_chapter chapter
-			return chapter
-		end
-	end
+    def get_manga(id)
+      obj = self.get File.join @base_url, "manga/#{id}"
+      if obj["status"]? != "OK"
+        raise "Expecting `OK` in the `status` field. Got `#{obj["status"]?}`"
+      end
+      begin
+        manga = Manga.new id, obj["manga"]
+        obj["chapter"].as_h.map do |k, v|
+          chapter = Chapter.new k, v, manga, @lang
+          manga.chapters << chapter
+        end
+        return manga
+      rescue
+        raise "Failed to parse JSON"
+      end
+    end
+
+    def get_chapter(chapter : Chapter)
+      obj = self.get File.join @base_url, "chapter/#{chapter.id}"
+      if obj["status"]? == "external"
+        raise "This chapter is hosted on an external site " \
+              "#{obj["external"]?}, and Mango does not support " \
+              "external chapters."
+      end
+      if obj["status"]? != "OK"
+        raise "Expecting `OK` in the `status` field. Got `#{obj["status"]?}`"
+      end
+      begin
+        server = obj["server"].as_s
+        hash = obj["hash"].as_s
+        chapter.pages = obj["page_array"].as_a.map do |fn|
+          {
+            fn.as_s,
+            "#{server}#{hash}/#{fn.as_s}",
+          }
+        end
+      rescue
+        raise "Failed to parse JSON"
+      end
+    end
+
+    def get_chapter(id : String)
+      obj = self.get File.join @base_url, "chapter/#{id}"
+      if obj["status"]? == "external"
+        raise "This chapter is hosted on an external site " \
+              "#{obj["external"]?}, and Mango does not support " \
+              "external chapters."
+      end
+      if obj["status"]? != "OK"
+        raise "Expecting `OK` in the `status` field. Got `#{obj["status"]?}`"
+      end
+      manga_id = ""
+      begin
+        manga_id = obj["manga_id"].as_i.to_s
+      rescue
+        raise "Failed to parse JSON"
+      end
+      manga = self.get_manga manga_id
+      chapter = manga.chapters.find { |c| c.id == id }.not_nil!
+      self.get_chapter chapter
+      return chapter
+    end
+  end
 end
diff --git a/src/mangadex/downloader.cr b/src/mangadex/downloader.cr
index 266396d2..231b790 100644
--- a/src/mangadex/downloader.cr
+++ b/src/mangadex/downloader.cr
@@ -2,373 +2,374 @@ require "./api"
 require "sqlite3"
 
 module MangaDex
-	class PageJob
-		property success = false
-		property url : String
-		property filename : String
-		property writer : Zip::Writer
-		property tries_remaning : Int32
-		def initialize(@url, @filename, @writer, @tries_remaning)
-		end
-	end
+  class PageJob
+    property success = false
+    property url : String
+    property filename : String
+    property writer : Zip::Writer
+    property tries_remaning : Int32
 
-	enum JobStatus
-		Pending      # 0
-		Downloading  # 1
-		Error        # 2
-		Completed    # 3
-		MissingPages # 4
-	end
+    def initialize(@url, @filename, @writer, @tries_remaning)
+    end
+  end
 
-	struct Job
-		property id : String
-		property manga_id : String
-		property title : String
-		property manga_title : String
-		property status : JobStatus
-		property status_message : String = ""
-		property pages : Int32 = 0
-		property success_count : Int32 = 0
-		property fail_count : Int32 = 0
-		property time : Time
+  enum JobStatus
+    Pending      # 0
+    Downloading  # 1
+    Error        # 2
+    Completed    # 3
+    MissingPages # 4
+  end
 
-		def parse_query_result(res : DB::ResultSet)
-			@id = res.read String
-			@manga_id = res.read String
-			@title = res.read String
-			@manga_title = res.read String
-			status = res.read Int32
-			@status_message = res.read String
-			@pages = res.read Int32
-			@success_count = res.read Int32
-			@fail_count = res.read Int32
-			time = res.read Int64
-			@status = JobStatus.new status
-			@time = Time.unix_ms time
-		end
+  struct Job
+    property id : String
+    property manga_id : String
+    property title : String
+    property manga_title : String
+    property status : JobStatus
+    property status_message : String = ""
+    property pages : Int32 = 0
+    property success_count : Int32 = 0
+    property fail_count : Int32 = 0
+    property time : Time
 
-		# Raises if the result set does not contain the correct set of columns
-		def self.from_query_result(res : DB::ResultSet)
-			job = Job.allocate
-			job.parse_query_result res
-			return job
-		end
+    def parse_query_result(res : DB::ResultSet)
+      @id = res.read String
+      @manga_id = res.read String
+      @title = res.read String
+      @manga_title = res.read String
+      status = res.read Int32
+      @status_message = res.read String
+      @pages = res.read Int32
+      @success_count = res.read Int32
+      @fail_count = res.read Int32
+      time = res.read Int64
+      @status = JobStatus.new status
+      @time = Time.unix_ms time
+    end
 
-		def initialize(@id, @manga_id, @title, @manga_title, @status, @time)
-		end
+    # Raises if the result set does not contain the correct set of columns
+    def self.from_query_result(res : DB::ResultSet)
+      job = Job.allocate
+      job.parse_query_result res
+      return job
+    end
 
-		def to_json(json)
-			json.object do
-				{% for name in ["id", "manga_id", "title", "manga_title",
-					"status_message"] %}
-					json.field {{name}}, @{{name.id}}
-				{% end %}
-				{% for name in ["pages", "success_count", "fail_count"] %}
-					json.field {{name}} do
-						json.number @{{name.id}}
-					end
-				{% end %}
-				json.field "status", @status.to_s
-				json.field "time" do
-					json.number @time.to_unix_ms
-				end
-			end
-		end
-	end
+    def initialize(@id, @manga_id, @title, @manga_title, @status, @time)
+    end
 
-	class Queue
-		property downloader : Downloader?
+    def to_json(json)
+      json.object do
+        {% for name in ["id", "manga_id", "title", "manga_title",
+                        "status_message"] %}
+          json.field {{name}}, @{{name.id}}
+        {% end %}
+        {% for name in ["pages", "success_count", "fail_count"] %}
+          json.field {{name}} do
+            json.number @{{name.id}}
+          end
+        {% end %}
+        json.field "status", @status.to_s
+        json.field "time" do
+          json.number @time.to_unix_ms
+        end
+      end
+    end
+  end
 
-		def initialize(@path : String, @logger : Logger)
-			dir = File.dirname path
-			unless Dir.exists? dir
-				@logger.info "The queue DB directory #{dir} does not exist. " \
-					"Attepmting to create it"
-				Dir.mkdir_p dir
-			end
-			DB.open "sqlite3://#{@path}" do |db|
-				begin
-					db.exec "create table if not exists queue " \
-						"(id text, manga_id text, title text, manga_title " \
-						"text, status integer, status_message text, " \
-						"pages integer, success_count integer, " \
-						"fail_count integer, time integer)"
-					db.exec "create unique index if not exists id_idx " \
-						"on queue (id)"
-					db.exec "create index if not exists manga_id_idx " \
-						"on queue (manga_id)"
-					db.exec "create index if not exists status_idx " \
-						"on queue (status)"
-				rescue e
-					@logger.error "Error when checking tables in DB: #{e}"
-					raise e
-				end
-			end
-		end
+  class Queue
+    property downloader : Downloader?
 
-		# Returns the earliest job in queue or nil if the job cannot be parsed.
-		#	Returns nil if queue is empty
-		def pop
-			job = nil
-			DB.open "sqlite3://#{@path}" do |db|
-				begin
-					db.query_one "select * from queue where status = 0 "\
-						"or status = 1 order by time limit 1" do |res|
-						job = Job.from_query_result res
-					end
-				rescue
-				end
-			end
-			return job
-		end
+    def initialize(@path : String, @logger : Logger)
+      dir = File.dirname path
+      unless Dir.exists? dir
+        @logger.info "The queue DB directory #{dir} does not exist. " \
+                     "Attepmting to create it"
+        Dir.mkdir_p dir
+      end
+      DB.open "sqlite3://#{@path}" do |db|
+        begin
+          db.exec "create table if not exists queue " \
+                  "(id text, manga_id text, title text, manga_title " \
+                  "text, status integer, status_message text, " \
+                  "pages integer, success_count integer, " \
+                  "fail_count integer, time integer)"
+          db.exec "create unique index if not exists id_idx " \
+                  "on queue (id)"
+          db.exec "create index if not exists manga_id_idx " \
+                  "on queue (manga_id)"
+          db.exec "create index if not exists status_idx " \
+                  "on queue (status)"
+        rescue e
+          @logger.error "Error when checking tables in DB: #{e}"
+          raise e
+        end
+      end
+    end
 
-		# Push an array of jobs into the queue, and return the number of jobs
-		#	inserted. Any job already exists in the queue will be ignored.
-		def push(jobs : Array(Job))
-			start_count = self.count
-			DB.open "sqlite3://#{@path}" do |db|
-				jobs.each do |job|
-					db.exec "insert or ignore into queue values "\
-						"(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-						job.id, job.manga_id, job.title, job.manga_title,
-						job.status.to_i, job.status_message, job.pages,
-						job.success_count, job.fail_count, job.time.to_unix_ms
-				end
-			end
-			self.count - start_count
-		end
+    # Returns the earliest job in queue or nil if the job cannot be parsed.
+    #   Returns nil if queue is empty
+    def pop
+      job = nil
+      DB.open "sqlite3://#{@path}" do |db|
+        begin
+          db.query_one "select * from queue where status = 0 " \
+                       "or status = 1 order by time limit 1" do |res|
+            job = Job.from_query_result res
+          end
+        rescue
+        end
+      end
+      return job
+    end
 
-		def reset(id : String)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set status = 0, status_message = '', " \
-					"pages = 0, success_count = 0, fail_count = 0 " \
-					"where id = (?)", id
-			end
-		end
+    # Push an array of jobs into the queue, and return the number of jobs
+    #   inserted. Any job already exists in the queue will be ignored.
+    def push(jobs : Array(Job))
+      start_count = self.count
+      DB.open "sqlite3://#{@path}" do |db|
+        jobs.each do |job|
+          db.exec "insert or ignore into queue values " \
+                  "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+            job.id, job.manga_id, job.title, job.manga_title,
+            job.status.to_i, job.status_message, job.pages,
+            job.success_count, job.fail_count, job.time.to_unix_ms
+        end
+      end
+      self.count - start_count
+    end
 
-		def reset (job : Job)
-			self.reset job.id
-		end
+    def reset(id : String)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = 0, status_message = '', " \
+                "pages = 0, success_count = 0, fail_count = 0 " \
+                "where id = (?)", id
+      end
+    end
 
-		# Reset all failed tasks (missing pages and error)
-		def reset
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set status = 0, status_message = '', " \
-					"pages = 0, success_count = 0, fail_count = 0 " \
-					"where status = 2 or status = 4"
-			end
-		end
+    def reset(job : Job)
+      self.reset job.id
+    end
 
-		def delete(id : String)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "delete from queue where id = (?)", id
-			end
-		end
+    # Reset all failed tasks (missing pages and error)
+    def reset
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = 0, status_message = '', " \
+                "pages = 0, success_count = 0, fail_count = 0 " \
+                "where status = 2 or status = 4"
+      end
+    end
 
-		def delete(job : Job)
-			self.delete job.id
-		end
+    def delete(id : String)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "delete from queue where id = (?)", id
+      end
+    end
 
-		def delete_status(status : JobStatus)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "delete from queue where status = (?)", status.to_i
-			end
-		end
+    def delete(job : Job)
+      self.delete job.id
+    end
 
-		def count_status(status : JobStatus)
-			DB.open "sqlite3://#{@path}" do |db|
-				return db.query_one "select count(*) from queue where "\
-					"status = (?)", status.to_i, as: Int32
-			end
-		end
+    def delete_status(status : JobStatus)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "delete from queue where status = (?)", status.to_i
+      end
+    end
 
-		def count
-			DB.open "sqlite3://#{@path}" do |db|
-				return db.query_one "select count(*) from queue", as: Int32
-			end
-		end
+    def count_status(status : JobStatus)
+      DB.open "sqlite3://#{@path}" do |db|
+        return db.query_one "select count(*) from queue where " \
+                            "status = (?)", status.to_i, as: Int32
+      end
+    end
 
-		def set_status(status : JobStatus, job : Job)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set status = (?) where id = (?)",
-					status.to_i, job.id
-			end
-		end
+    def count
+      DB.open "sqlite3://#{@path}" do |db|
+        return db.query_one "select count(*) from queue", as: Int32
+      end
+    end
 
-		def get_all
-			jobs = [] of Job
-			DB.open "sqlite3://#{@path}" do |db|
-				jobs = db.query_all "select * from queue order by time", do |rs|
-					Job.from_query_result rs
-				end
-			end
-			return jobs
-		end
+    def set_status(status : JobStatus, job : Job)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = (?) where id = (?)",
+          status.to_i, job.id
+      end
+    end
 
-		def add_success(job : Job)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set success_count = success_count + 1 " \
-					"where id = (?)", job.id
-			end
-		end
+    def get_all
+      jobs = [] of Job
+      DB.open "sqlite3://#{@path}" do |db|
+        jobs = db.query_all "select * from queue order by time" do |rs|
+          Job.from_query_result rs
+        end
+      end
+      return jobs
+    end
 
-		def add_fail(job : Job)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set fail_count = fail_count + 1 " \
-					"where id = (?)", job.id
-			end
-		end
+    def add_success(job : Job)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set success_count = success_count + 1 " \
+                "where id = (?)", job.id
+      end
+    end
 
-		def set_pages(pages : Int32, job : Job)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set pages = (?), success_count = 0, " \
-					"fail_count = 0 where id = (?)", pages, job.id
-			end
-		end
+    def add_fail(job : Job)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set fail_count = fail_count + 1 " \
+                "where id = (?)", job.id
+      end
+    end
 
-		def add_message(msg : String, job : Job)
-			DB.open "sqlite3://#{@path}" do |db|
-				db.exec "update queue set status_message = " \
-					"status_message || (?) || (?) where id = (?)",
-					"\n", msg, job.id
-			end
-		end
+    def set_pages(pages : Int32, job : Job)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set pages = (?), success_count = 0, " \
+                "fail_count = 0 where id = (?)", pages, job.id
+      end
+    end
 
-		def pause
-			@downloader.not_nil!.stopped = true
-		end
+    def add_message(msg : String, job : Job)
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status_message = " \
+                "status_message || (?) || (?) where id = (?)",
+          "\n", msg, job.id
+      end
+    end
 
-		def resume
-			@downloader.not_nil!.stopped = false
-		end
+    def pause
+      @downloader.not_nil!.stopped = true
+    end
 
-		def paused?
-			@downloader.not_nil!.stopped
-		end
-	end
+    def resume
+      @downloader.not_nil!.stopped = false
+    end
 
-	class Downloader
-		property stopped = false
-		@downloading = false
+    def paused?
+      @downloader.not_nil!.stopped
+    end
+  end
 
-		def initialize(@queue : Queue, @api : API, @library_path : String,
-					   @wait_seconds : Int32, @retries : Int32,
-					   @logger : Logger)
-			@queue.downloader = self
+  class Downloader
+    property stopped = false
+    @downloading = false
 
-			spawn do
-				loop do
-					sleep 1.second
-					next if @stopped || @downloading
-					begin
-						job = @queue.pop
-						next if job.nil?
-						download job
-					rescue e
-						@logger.error e
-					end
-				end
-			end
-		end
+    def initialize(@queue : Queue, @api : API, @library_path : String,
+                   @wait_seconds : Int32, @retries : Int32,
+                   @logger : Logger)
+      @queue.downloader = self
 
-		private def download(job : Job)
-			@downloading = true
-			@queue.set_status JobStatus::Downloading, job
-			begin
-				chapter = @api.get_chapter(job.id)
-			rescue e
-				@logger.error e
-				@queue.set_status JobStatus::Error, job
-				unless e.message.nil?
-					@queue.add_message e.message.not_nil!, job
-				end
-				@downloading = false
-				return
-			end
-			@queue.set_pages chapter.pages.size, job
-			lib_dir = @library_path
-			manga_dir = File.join lib_dir, chapter.manga.title
-			unless File.exists? manga_dir
-				Dir.mkdir_p manga_dir
-			end
-			zip_path = File.join manga_dir, "#{job.title}.cbz"
+      spawn do
+        loop do
+          sleep 1.second
+          next if @stopped || @downloading
+          begin
+            job = @queue.pop
+            next if job.nil?
+            download job
+          rescue e
+            @logger.error e
+          end
+        end
+      end
+    end
 
-			# Find the number of digits needed to store the number of pages
-			len = Math.log10(chapter.pages.size).to_i + 1
+    private def download(job : Job)
+      @downloading = true
+      @queue.set_status JobStatus::Downloading, job
+      begin
+        chapter = @api.get_chapter(job.id)
+      rescue e
+        @logger.error e
+        @queue.set_status JobStatus::Error, job
+        unless e.message.nil?
+          @queue.add_message e.message.not_nil!, job
+        end
+        @downloading = false
+        return
+      end
+      @queue.set_pages chapter.pages.size, job
+      lib_dir = @library_path
+      manga_dir = File.join lib_dir, chapter.manga.title
+      unless File.exists? manga_dir
+        Dir.mkdir_p manga_dir
+      end
+      zip_path = File.join manga_dir, "#{job.title}.cbz"
 
-			writer = Zip::Writer.new zip_path
-			# Create a buffered channel. It works as an FIFO queue
-			channel = Channel(PageJob).new chapter.pages.size
-			spawn do
-				chapter.pages.each_with_index do |tuple, i|
-					fn, url = tuple
-					ext = File.extname fn
-					fn = "#{i.to_s.rjust len, '0'}#{ext}"
-					page_job = PageJob.new url, fn, writer, @retries
-					@logger.debug "Downloading #{url}"
-					loop do
-						sleep @wait_seconds.seconds
-						download_page page_job
-						break if page_job.success ||
-							page_job.tries_remaning <= 0
-						page_job.tries_remaning -= 1
-						@logger.warn "Failed to download page #{url}. " \
-							"Retrying... Remaining retries: " \
-							"#{page_job.tries_remaning}"
-					end
+      # Find the number of digits needed to store the number of pages
+      len = Math.log10(chapter.pages.size).to_i + 1
 
-					channel.send page_job
-				end
-			end
+      writer = Zip::Writer.new zip_path
+      # Create a buffered channel. It works as an FIFO queue
+      channel = Channel(PageJob).new chapter.pages.size
+      spawn do
+        chapter.pages.each_with_index do |tuple, i|
+          fn, url = tuple
+          ext = File.extname fn
+          fn = "#{i.to_s.rjust len, '0'}#{ext}"
+          page_job = PageJob.new url, fn, writer, @retries
+          @logger.debug "Downloading #{url}"
+          loop do
+            sleep @wait_seconds.seconds
+            download_page page_job
+            break if page_job.success ||
+                     page_job.tries_remaning <= 0
+            page_job.tries_remaning -= 1
+            @logger.warn "Failed to download page #{url}. " \
+                         "Retrying... Remaining retries: " \
+                         "#{page_job.tries_remaning}"
+          end
 
-			spawn do
-				page_jobs = [] of PageJob
-				chapter.pages.size.times do
-					page_job = channel.receive
-					@logger.debug "[#{page_job.success ? "success" : "failed"}] " \
-						"#{page_job.url}"
-					page_jobs << page_job
-					if page_job.success
-						@queue.add_success job
-					else
-						@queue.add_fail job
-						msg = "Failed to download page #{page_job.url}"
-						@queue.add_message msg, job
-						@logger.error msg
-					end
-				end
-				fail_count = page_jobs.select{|j| !j.success}.size
-				@logger.debug "Download completed. "\
-					"#{fail_count}/#{page_jobs.size} failed"
-				writer.close
-				@logger.debug "cbz File created at #{zip_path}"
-				if fail_count == 0
-					@queue.set_status JobStatus::Completed, job
-				else
-					@queue.set_status JobStatus::MissingPages, job
-				end
-				@downloading = false
-			end
-		end
+          channel.send page_job
+        end
+      end
 
-		private def download_page(job : PageJob)
-			@logger.debug "downloading #{job.url}"
-			headers = HTTP::Headers {
-				"User-agent" => "Mangadex.cr"
-			}
-			begin
-				HTTP::Client.get job.url, headers do |res|
-					unless res.success?
-						raise "Failed to download page #{job.url}. " \
-							"[#{res.status_code}] #{res.status_message}"
-					end
-					job.writer.add job.filename, res.body_io
-				end
-				job.success = true
-			rescue e
-				@logger.error e
-				job.success = false
-			end
-		end
-	end
+      spawn do
+        page_jobs = [] of PageJob
+        chapter.pages.size.times do
+          page_job = channel.receive
+          @logger.debug "[#{page_job.success ? "success" : "failed"}] " \
+                        "#{page_job.url}"
+          page_jobs << page_job
+          if page_job.success
+            @queue.add_success job
+          else
+            @queue.add_fail job
+            msg = "Failed to download page #{page_job.url}"
+            @queue.add_message msg, job
+            @logger.error msg
+          end
+        end
+        fail_count = page_jobs.select { |j| !j.success }.size
+        @logger.debug "Download completed. " \
+                      "#{fail_count}/#{page_jobs.size} failed"
+        writer.close
+        @logger.debug "cbz File created at #{zip_path}"
+        if fail_count == 0
+          @queue.set_status JobStatus::Completed, job
+        else
+          @queue.set_status JobStatus::MissingPages, job
+        end
+        @downloading = false
+      end
+    end
+
+    private def download_page(job : PageJob)
+      @logger.debug "downloading #{job.url}"
+      headers = HTTP::Headers{
+        "User-agent" => "Mangadex.cr",
+      }
+      begin
+        HTTP::Client.get job.url, headers do |res|
+          unless res.success?
+            raise "Failed to download page #{job.url}. " \
+                  "[#{res.status_code}] #{res.status_message}"
+          end
+          job.writer.add job.filename, res.body_io
+        end
+        job.success = true
+      rescue e
+        @logger.error e
+        job.success = false
+      end
+    end
+  end
 end
diff --git a/src/mango.cr b/src/mango.cr
index 29da3d0..c11dcc7 100644
--- a/src/mango.cr
+++ b/src/mango.cr
@@ -8,20 +8,20 @@ VERSION = "0.2.5"
 config_path = nil
 
 parser = OptionParser.parse do |parser|
-	parser.banner = "Mango e-manga server/reader. Version #{VERSION}\n"
+  parser.banner = "Mango e-manga server/reader. Version #{VERSION}\n"
 
-	parser.on "-v", "--version", "Show version" do
-		puts "Version #{VERSION}"
-		exit
-	end
-	parser.on "-h", "--help", "Show help" do
-		puts parser
-		exit
-	end
-	parser.on "-c PATH", "--config=PATH", "Path to the config file. " \
-		"Default is `~/.config/mango/config.yml`" do |path|
-		config_path = path
-	end
+  parser.on "-v", "--version", "Show version" do
+    puts "Version #{VERSION}"
+    exit
+  end
+  parser.on "-h", "--help", "Show help" do
+    puts parser
+    exit
+  end
+  parser.on "-c PATH", "--config=PATH",
+    "Path to the config file. Default is `~/.config/mango/config.yml`" do |path|
+    config_path = path
+  end
 end
 
 config = Config.load config_path
@@ -29,11 +29,11 @@ logger = Logger.new config.log_level
 storage = Storage.new config.db_path, logger
 library = Library.new config.library_path, config.scan_interval, logger, storage
 queue = MangaDex::Queue.new config.mangadex["download_queue_db_path"].to_s,
-	logger
-api = MangaDex::API.new  config.mangadex["api_url"].to_s
+  logger
+api = MangaDex::API.new config.mangadex["api_url"].to_s
 downloader = MangaDex::Downloader.new queue, api, config.library_path,
-	config.mangadex["download_wait_seconds"].to_i,
-	config.mangadex["download_retries"].to_i, logger
+  config.mangadex["download_wait_seconds"].to_i,
+  config.mangadex["download_retries"].to_i, logger
 
 context = Context.new config, logger, library, storage, queue
 
diff --git a/src/routes/admin.cr b/src/routes/admin.cr
index 02ca4c1..944941e 100644
--- a/src/routes/admin.cr
+++ b/src/routes/admin.cr
@@ -1,108 +1,107 @@
 require "./router"
 
 class AdminRouter < Router
-	def setup
-		get "/admin" do |env|
-			layout "admin"
-		end
+  def setup
+    get "/admin" do |env|
+      layout "admin"
+    end
 
-		get "/admin/user" do |env|
-			users = @context.storage.list_users
-			username = get_username env
-			layout "user"
-		end
+    get "/admin/user" do |env|
+      users = @context.storage.list_users
+      username = get_username env
+      layout "user"
+    end
 
-		get "/admin/user/edit" do |env|
-			username = env.params.query["username"]?
-			admin = env.params.query["admin"]?
-			if admin
-				admin = admin == "true"
-			end
-			error = env.params.query["error"]?
-				current_user = get_username env
-			new_user = username.nil? && admin.nil?
-			layout "user-edit"
-		end
+    get "/admin/user/edit" do |env|
+      username = env.params.query["username"]?
+      admin = env.params.query["admin"]?
+      if admin
+        admin = admin == "true"
+      end
+      error = env.params.query["error"]?
+      current_user = get_username env
+      new_user = username.nil? && admin.nil?
+      layout "user-edit"
+    end
 
-		post "/admin/user/edit" do |env|
-			# creating new user
-			begin
-				username = env.params.body["username"]
-				password = env.params.body["password"]
-				# if `admin` is unchecked, the body hash
-				# 	would not contain `admin`
-				admin = !env.params.body["admin"]?.nil?
+    post "/admin/user/edit" do |env|
+      # creating new user
+      begin
+        username = env.params.body["username"]
+        password = env.params.body["password"]
+        # if `admin` is unchecked, the body hash
+        #   would not contain `admin`
+        admin = !env.params.body["admin"]?.nil?
 
-				if username.size < 3
-					raise "Username should contain at least 3 characters"
-				end
-				if (username =~ /^[A-Za-z0-9_]+$/).nil?
-					raise "Username should contain alphanumeric characters "\
-						"and underscores only"
-				end
-				if password.size < 6
-					raise "Password should contain at least 6 characters"
-				end
-				if (password =~ /^[[:ascii:]]+$/).nil?
-					raise "password should contain ASCII characters only"
-				end
+        if username.size < 3
+          raise "Username should contain at least 3 characters"
+        end
+        if (username =~ /^[A-Za-z0-9_]+$/).nil?
+          raise "Username should contain alphanumeric characters " \
+                "and underscores only"
+        end
+        if password.size < 6
+          raise "Password should contain at least 6 characters"
+        end
+        if (password =~ /^[[:ascii:]]+$/).nil?
+          raise "password should contain ASCII characters only"
+        end
 
-				@context.storage.new_user username, password, admin
+        @context.storage.new_user username, password, admin
 
-				env.redirect "/admin/user"
-			rescue e
-				@context.error e
-				redirect_url = URI.new \
-					path: "/admin/user/edit",\
-					query: hash_to_query({"error" => e.message})
-				env.redirect redirect_url.to_s
-			end
-		end
+        env.redirect "/admin/user"
+      rescue e
+        @context.error e
+        redirect_url = URI.new \
+          path: "/admin/user/edit",
+          query: hash_to_query({"error" => e.message})
+        env.redirect redirect_url.to_s
+      end
+    end
 
-		post "/admin/user/edit/:original_username" do |env|
-			# editing existing user
-			begin
-				username = env.params.body["username"]
-				password = env.params.body["password"]
-				# if `admin` is unchecked, the body
-				#	hash would not contain `admin`
-				admin = !env.params.body["admin"]?.nil?
-				original_username = env.params.url["original_username"]
+    post "/admin/user/edit/:original_username" do |env|
+      # editing existing user
+      begin
+        username = env.params.body["username"]
+        password = env.params.body["password"]
+        # if `admin` is unchecked, the body hash would not contain `admin`
+        admin = !env.params.body["admin"]?.nil?
+        original_username = env.params.url["original_username"]
 
-				if username.size < 3
-					raise "Username should contain at least 3 characters"
-				end
-				if (username =~ /^[A-Za-z0-9_]+$/).nil?
-					raise "Username should contain alphanumeric characters "\
-						"and underscores only"
-				end
+        if username.size < 3
+          raise "Username should contain at least 3 characters"
+        end
+        if (username =~ /^[A-Za-z0-9_]+$/).nil?
+          raise "Username should contain alphanumeric characters " \
+                "and underscores only"
+        end
 
-				if password.size != 0
-					if password.size < 6
-						raise "Password should contain at least 6 characters"
-					end
-					if (password =~ /^[[:ascii:]]+$/).nil?
-						raise "password should contain ASCII characters only"
-					end
-				end
+        if password.size != 0
+          if password.size < 6
+            raise "Password should contain at least 6 characters"
+          end
+          if (password =~ /^[[:ascii:]]+$/).nil?
+            raise "password should contain ASCII characters only"
+          end
+        end
 
-				@context.storage.update_user \
-					original_username, username, password, admin
+        @context.storage.update_user \
+          original_username, username, password, admin
 
-				env.redirect "/admin/user"
-			rescue e
-				@context.error e
-				redirect_url = URI.new \
-					path: "/admin/user/edit",\
-					query: hash_to_query({"username" => original_username, \
-						   "admin" => admin, "error" => e.message})
-					env.redirect redirect_url.to_s
-			end
-		end
+        env.redirect "/admin/user"
+      rescue e
+        @context.error e
+        redirect_url = URI.new \
+          path: "/admin/user/edit",
+          query: hash_to_query({"username" => original_username, \
+                                   "admin" => admin, "error" => e.message})
+        env.redirect redirect_url.to_s
+      end
+    end
 
-		get "/admin/downloads" do |env|
-			base_url = @context.config.mangadex["base_url"];
-			layout "download-manager"
-		end
-	end
+    get "/admin/downloads" do |env|
+      base_url = @context.config.mangadex["base_url"]
+      layout "download-manager"
+    end
+  end
 end
diff --git a/src/routes/api.cr b/src/routes/api.cr
index c0423cb..71da618 100644
--- a/src/routes/api.cr
+++ b/src/routes/api.cr
@@ -2,202 +2,200 @@ require "./router"
 require "../mangadex/*"
 
 class APIRouter < Router
-	def setup
-		get "/api/page/:tid/:eid/:page" do |env|
-			begin
-				tid = env.params.url["tid"]
-				eid = env.params.url["eid"]
-				page = env.params.url["page"].to_i
+  def setup
+    get "/api/page/:tid/:eid/:page" do |env|
+      begin
+        tid = env.params.url["tid"]
+        eid = env.params.url["eid"]
+        page = env.params.url["page"].to_i
 
-				title = @context.library.get_title tid
-				raise "Title ID `#{tid}` not found" if title.nil?
-				entry = title.get_entry eid
-				raise "Entry ID `#{eid}` of `#{title.title}` not found" if \
-					entry.nil?
-				img = entry.read_page page
-				raise "Failed to load page #{page} of " \
-					"`#{title.title}/#{entry.title}`" if img.nil?
+        title = @context.library.get_title tid
+        raise "Title ID `#{tid}` not found" if title.nil?
+        entry = title.get_entry eid
+        raise "Entry ID `#{eid}` of `#{title.title}` not found" if entry.nil?
+        img = entry.read_page page
+        raise "Failed to load page #{page} of " \
+              "`#{title.title}/#{entry.title}`" if img.nil?
 
-				send_img env, img
-			rescue e
-				@context.error e
-				env.response.status_code = 500
-				e.message
-			end
-		end
+        send_img env, img
+      rescue e
+        @context.error e
+        env.response.status_code = 500
+        e.message
+      end
+    end
 
-		get "/api/book/:tid" do |env|
-			begin
-				tid = env.params.url["tid"]
-				title = @context.library.get_title tid
-				raise "Title ID `#{tid}` not found" if title.nil?
+    get "/api/book/:tid" do |env|
+      begin
+        tid = env.params.url["tid"]
+        title = @context.library.get_title tid
+        raise "Title ID `#{tid}` not found" if title.nil?
 
-				send_json env, title.to_json
-			rescue e
-				@context.error e
-				env.response.status_code = 500
-				e.message
-			end
-		end
+        send_json env, title.to_json
+      rescue e
+        @context.error e
+        env.response.status_code = 500
+        e.message
+      end
+    end
 
-		get "/api/book" do |env|
-			send_json env, @context.library.to_json
-		end
+    get "/api/book" do |env|
+      send_json env, @context.library.to_json
+    end
 
-		post "/api/admin/scan" do |env|
-			start = Time.utc
-			@context.library.scan
-			ms = (Time.utc - start).total_milliseconds
-			send_json env, {
-				"milliseconds" => ms,
-				"titles" => @context.library.titles.size
-			}.to_json
-		end
+    post "/api/admin/scan" do |env|
+      start = Time.utc
+      @context.library.scan
+      ms = (Time.utc - start).total_milliseconds
+      send_json env, {
+        "milliseconds" => ms,
+        "titles"       => @context.library.titles.size,
+      }.to_json
+    end
 
-		post "/api/admin/user/delete/:username" do |env|
-			begin
-				username = env.params.url["username"]
-				@context.storage.delete_user username
-			rescue e
-				@context.error e
-				send_json env, {
-					"success" => false,
-					"error" => e.message
-				}.to_json
-			else
-				send_json env, {"success" => true}.to_json
-			end
-		end
+    post "/api/admin/user/delete/:username" do |env|
+      begin
+        username = env.params.url["username"]
+        @context.storage.delete_user username
+      rescue e
+        @context.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      else
+        send_json env, {"success" => true}.to_json
+      end
+    end
 
-		post "/api/progress/:title/:entry/:page" do |env|
-			begin
-				username = get_username env
-				title = (@context.library.get_title env.params.url["title"])
-					.not_nil!
-				entry = (title.get_entry env.params.url["entry"]).not_nil!
-				page = env.params.url["page"].to_i
+    post "/api/progress/:title/:entry/:page" do |env|
+      begin
+        username = get_username env
+        title = (@context.library.get_title env.params.url["title"])
+          .not_nil!
+        entry = (title.get_entry env.params.url["entry"]).not_nil!
+        page = env.params.url["page"].to_i
 
-				raise "incorrect page value" if page < 0 || page > entry.pages
-				title.save_progress username, entry.title, page
-			rescue e
-				@context.error e
-				send_json env, {
-					"success" => false,
-					"error" => e.message
-				}.to_json
-			else
-				send_json env, {"success" => true}.to_json
-			end
-		end
+        raise "incorrect page value" if page < 0 || page > entry.pages
+        title.save_progress username, entry.title, page
+      rescue e
+        @context.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      else
+        send_json env, {"success" => true}.to_json
+      end
+    end
 
-		post "/api/admin/display_name/:title/:name" do |env|
-			begin
-				title = (@context.library.get_title env.params.url["title"])
-					.not_nil!
-				name = env.params.url["name"]
-				entry = env.params.query["entry"]?
-				if entry.nil?
-					title.set_display_name name
-				else
-					eobj = title.get_entry entry
-					title.set_display_name eobj.not_nil!.title, name
-				end
-			rescue e
-				@context.error e
-				send_json env, {
-					"success" => false,
-					"error" => e.message
-				}.to_json
-			else
-				send_json env, {"success" => true}.to_json
-			end
-		end
+    post "/api/admin/display_name/:title/:name" do |env|
+      begin
+        title = (@context.library.get_title env.params.url["title"])
+          .not_nil!
+        name = env.params.url["name"]
+        entry = env.params.query["entry"]?
+        if entry.nil?
+          title.set_display_name name
+        else
+          eobj = title.get_entry entry
+          title.set_display_name eobj.not_nil!.title, name
+        end
+      rescue e
+        @context.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      else
+        send_json env, {"success" => true}.to_json
+      end
+    end
 
-		get "/api/admin/mangadex/manga/:id" do |env|
-			begin
-				id = env.params.url["id"]
-				api = MangaDex::API.new \
-					@context.config.mangadex["api_url"].to_s
-				manga = api.get_manga id
-				send_json env, manga.to_info_json
-			rescue e
-				@context.error e
-				send_json env, {"error" => e.message}.to_json
-			end
-		end
+    get "/api/admin/mangadex/manga/:id" do |env|
+      begin
+        id = env.params.url["id"]
+        api = MangaDex::API.new @context.config.mangadex["api_url"].to_s
+        manga = api.get_manga id
+        send_json env, manga.to_info_json
+      rescue e
+        @context.error e
+        send_json env, {"error" => e.message}.to_json
+      end
+    end
 
-		post "/api/admin/mangadex/download" do |env|
-			begin
-				chapters = env.params.json["chapters"].as(Array).map{|c| c.as_h}
-				jobs = chapters.map {|chapter|
-					MangaDex::Job.new(
-						chapter["id"].as_s,
-						chapter["manga_id"].as_s,
-						chapter["full_title"].as_s,
-						chapter["manga_title"].as_s,
-						MangaDex::JobStatus::Pending,
-						Time.unix chapter["time"].as_s.to_i
-					)
-				}
-				inserted_count = @context.queue.push jobs
-				send_json env, {
-					"success": inserted_count,
-					"fail": jobs.size - inserted_count
-				}.to_json
-			rescue e
-				@context.error e
-				send_json env, {"error" => e.message}.to_json
-			end
-		end
+    post "/api/admin/mangadex/download" do |env|
+      begin
+        chapters = env.params.json["chapters"].as(Array).map { |c| c.as_h }
+        jobs = chapters.map { |chapter|
+          MangaDex::Job.new(
+            chapter["id"].as_s,
+            chapter["manga_id"].as_s,
+            chapter["full_title"].as_s,
+            chapter["manga_title"].as_s,
+            MangaDex::JobStatus::Pending,
+            Time.unix chapter["time"].as_s.to_i
+          )
+        }
+        inserted_count = @context.queue.push jobs
+        send_json env, {
+          "success": inserted_count,
+          "fail":    jobs.size - inserted_count,
+        }.to_json
+      rescue e
+        @context.error e
+        send_json env, {"error" => e.message}.to_json
+      end
+    end
 
-		get "/api/admin/mangadex/queue" do |env|
-			begin
-				jobs = @context.queue.get_all
-				send_json env, {
-					"jobs" => jobs,
-					"paused" => @context.queue.paused?,
-					"success" => true
-				}.to_json
-			rescue e
-				send_json env, {
-					"success" => false,
-					"error" => e.message
-				}.to_json
-			end
-		end
+    get "/api/admin/mangadex/queue" do |env|
+      begin
+        jobs = @context.queue.get_all
+        send_json env, {
+          "jobs"    => jobs,
+          "paused"  => @context.queue.paused?,
+          "success" => true,
+        }.to_json
+      rescue e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
 
-		post "/api/admin/mangadex/queue/:action" do |env|
-			begin
-				action = env.params.url["action"]
-				id = env.params.query["id"]?
-				case action
-				when "delete"
-					if id.nil?
-						@context.queue.delete_status MangaDex::JobStatus::Completed
-					else
-						@context.queue.delete id
-					end
-				when "retry"
-					if id.nil?
-						@context.queue.reset
-					else
-						@context.queue.reset id
-					end
-				when "pause"
-					@context.queue.pause
-				when "resume"
-					@context.queue.resume
-				else
-					raise "Unknown queue action #{action}"
-				end
+    post "/api/admin/mangadex/queue/:action" do |env|
+      begin
+        action = env.params.url["action"]
+        id = env.params.query["id"]?
+        case action
+        when "delete"
+          if id.nil?
+            @context.queue.delete_status MangaDex::JobStatus::Completed
+          else
+            @context.queue.delete id
+          end
+        when "retry"
+          if id.nil?
+            @context.queue.reset
+          else
+            @context.queue.reset id
+          end
+        when "pause"
+          @context.queue.pause
+        when "resume"
+          @context.queue.resume
+        else
+          raise "Unknown queue action #{action}"
+        end
 
-				send_json env, {"success" => true}.to_json
-			rescue e
-				send_json env, {
-					"success" => false,
-					"error" => e.message
-				}.to_json
-			end
-		end
-	end
+        send_json env, {"success" => true}.to_json
+      rescue e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+  end
 end
diff --git a/src/routes/main.cr b/src/routes/main.cr
index ae3d586..b48bc8b 100644
--- a/src/routes/main.cr
+++ b/src/routes/main.cr
@@ -1,63 +1,61 @@
 require "./router"
 
 class MainRouter < Router
-	def setup
-		get "/login" do |env|
-			render "src/views/login.ecr"
-		end
+  def setup
+    get "/login" do |env|
+      render "src/views/login.ecr"
+    end
 
-		get "/logout" do |env|
-			begin
-				cookie = env.request.cookies
-					.find { |c| c.name == "token" }.not_nil!
-				@context.storage.logout cookie.value
-			rescue e
-				@context.error "Error when attempting to log out: #{e}"
-			ensure
-				env.redirect "/login"
-			end
-		end
+    get "/logout" do |env|
+      begin
+        cookie = env.request.cookies.find { |c| c.name == "token" }.not_nil!
+        @context.storage.logout cookie.value
+      rescue e
+        @context.error "Error when attempting to log out: #{e}"
+      ensure
+        env.redirect "/login"
+      end
+    end
 
-		post "/login" do |env|
-			begin
-				username = env.params.body["username"]
-				password = env.params.body["password"]
-				token = @context.storage.verify_user(username, password)
-					.not_nil!
+    post "/login" do |env|
+      begin
+        username = env.params.body["username"]
+        password = env.params.body["password"]
+        token = @context.storage.verify_user(username, password).not_nil!
 
-				cookie = HTTP::Cookie.new "token", token
-				cookie.expires = Time.local.shift years: 1
-				env.response.cookies << cookie
-				env.redirect "/"
-			rescue
-				env.redirect "/login"
-			end
-		end
+        cookie = HTTP::Cookie.new "token", token
+        cookie.expires = Time.local.shift years: 1
+        env.response.cookies << cookie
+        env.redirect "/"
+      rescue
+        env.redirect "/login"
+      end
+    end
 
-		get "/" do |env|
-			titles = @context.library.titles
-			username = get_username env
-			percentage = titles.map &.load_percetage username
-			layout "index"
-		end
+    get "/" do |env|
+      titles = @context.library.titles
+      username = get_username env
+      percentage = titles.map &.load_percetage username
+      layout "index"
+    end
 
-		get "/book/:title" do |env|
-			begin
-				title = (@context.library.get_title env.params.url["title"])
-					.not_nil!
-				username = get_username env
-				percentage = title.entries.map { |e|
-					title.load_percetage username, e.title }
-				layout "title"
-			rescue e
-				@context.error e
-				env.response.status_code = 404
-			end
-		end
+    get "/book/:title" do |env|
+      begin
+        title = (@context.library.get_title env.params.url["title"]).not_nil!
+        username = get_username env
+        percentage = title.entries.map { |e|
+          title.load_percetage username, e.title
+        }
+        layout "title"
+      rescue e
+        @context.error e
+        env.response.status_code = 404
+      end
+    end
 
-		get "/download" do |env|
-			base_url = @context.config.mangadex["base_url"];
-			layout "download"
-		end
-	end
+    get "/download" do |env|
+      base_url = @context.config.mangadex["base_url"]
+      layout "download"
+    end
+  end
 end
diff --git a/src/routes/reader.cr b/src/routes/reader.cr
index 266396da..49d9a27 100644
--- a/src/routes/reader.cr
+++ b/src/routes/reader.cr
@@ -1,58 +1,61 @@
 require "./router"
 
 class ReaderRouter < Router
-	def setup
-		get "/reader/:title/:entry" do |env|
-			begin
-				title = (@context.library.get_title env.params.url["title"])
-					.not_nil!
-				entry = (title.get_entry env.params.url["entry"]).not_nil!
+  def setup
+    get "/reader/:title/:entry" do |env|
+      begin
+        title = (@context.library.get_title env.params.url["title"]).not_nil!
+        entry = (title.get_entry env.params.url["entry"]).not_nil!
 
-				# load progress
-				username = get_username env
-				page = title.load_progress username, entry.title
-				# we go back 2 * `IMGS_PER_PAGE` pages. the infinite scroll
-				# 	library perloads a few pages in advance, and the user
-				# 	might not have actually read them
-				page = [page - 2 * IMGS_PER_PAGE, 1].max
+        # load progress
+        username = get_username env
+        page = title.load_progress username, entry.title
+        # we go back 2 * `IMGS_PER_PAGE` pages. the infinite scroll
+        #   library perloads a few pages in advance, and the user
+        #   might not have actually read them
+        page = [page - 2 * IMGS_PER_PAGE, 1].max
 
-				env.redirect "/reader/#{title.id}/#{entry.id}/#{page}"
-			rescue e
-				@context.error e
-				env.response.status_code = 404
-			end
-		end
+        env.redirect "/reader/#{title.id}/#{entry.id}/#{page}"
+      rescue e
+        @context.error e
+        env.response.status_code = 404
+      end
+    end
 
-		get "/reader/:title/:entry/:page" do |env|
-			begin
-				title = (@context.library.get_title env.params.url["title"])
-					.not_nil!
-				entry = (title.get_entry env.params.url["entry"]).not_nil!
-				page = env.params.url["page"].to_i
-				raise "" if page > entry.pages || page <= 0
+    get "/reader/:title/:entry/:page" do |env|
+      begin
+        title = (@context.library.get_title env.params.url["title"]).not_nil!
+        entry = (title.get_entry env.params.url["entry"]).not_nil!
+        page = env.params.url["page"].to_i
+        raise "" if page > entry.pages || page <= 0
 
-				# save progress
-				username = get_username env
-				title.save_progress username, entry.title, page
+        # save progress
+        username = get_username env
+        title.save_progress username, entry.title, page
 
-				pages = (page...[entry.pages + 1, page + IMGS_PER_PAGE].min)
-				urls = pages.map { |idx|
-					"/api/page/#{title.id}/#{entry.id}/#{idx}" }
-				reader_urls = pages.map { |idx|
-					"/reader/#{title.id}/#{entry.id}/#{idx}" }
-				next_page = page + IMGS_PER_PAGE
-				next_url = next_page > entry.pages ? nil :
-					"/reader/#{title.id}/#{entry.id}/#{next_page}"
-				exit_url = "/book/#{title.id}"
-				next_entry = title.next_entry entry
-				next_entry_url = next_entry.nil? ? nil : \
-					"/reader/#{title.id}/#{next_entry.id}"
+        pages = (page...[entry.pages + 1, page + IMGS_PER_PAGE].min)
+        urls = pages.map { |idx|
+          "/api/page/#{title.id}/#{entry.id}/#{idx}"
+        }
+        reader_urls = pages.map { |idx|
+          "/reader/#{title.id}/#{entry.id}/#{idx}"
+        }
+        next_page = page + IMGS_PER_PAGE
+        next_url = next_entry_url = nil
+        exit_url = "/book/#{title.id}"
+        next_entry = title.next_entry entry
+        unless next_page > entry.pages
+          next_url = "/reader/#{title.id}/#{entry.id}/#{next_page}"
+        end
+        unless next_entry.nil?
+          next_entry_url = "/reader/#{title.id}/#{next_entry.id}"
+        end
 
-				render "src/views/reader.ecr"
-			rescue e
-				@context.error e
-				env.response.status_code = 404
-			end
-		end
-	end
+        render "src/views/reader.ecr"
+      rescue e
+        @context.error e
+        env.response.status_code = 404
+      end
+    end
+  end
 end
diff --git a/src/routes/router.cr b/src/routes/router.cr
index 16389fb..97fb698 100644
--- a/src/routes/router.cr
+++ b/src/routes/router.cr
@@ -1,6 +1,6 @@
 require "../context"
 
 class Router
-	def initialize(@context : Context)
-	end
+  def initialize(@context : Context)
+  end
 end
diff --git a/src/server.cr b/src/server.cr
index e31e10a..510542c 100644
--- a/src/server.cr
+++ b/src/server.cr
@@ -7,44 +7,42 @@ require "./util"
 require "./routes/*"
 
 class Server
-	def initialize(@context : Context)
+  def initialize(@context : Context)
+    error 403 do |env|
+      message = "HTTP 403: You are not authorized to visit #{env.request.path}"
+      layout "message"
+    end
+    error 404 do |env|
+      message = "HTTP 404: Mango cannot find the page #{env.request.path}"
+      layout "message"
+    end
+    error 500 do |env|
+      message = "HTTP 500: Internal server error. Please try again later."
+      layout "message"
+    end
 
-		error 403 do |env|
-			message = "HTTP 403: You are not authorized to visit " \
-				"#{env.request.path}"
-			layout "message"
-		end
-		error 404 do |env|
-			message = "HTTP 404: Mango cannot find the page #{env.request.path}"
-			layout "message"
-		end
-		error 500 do |env|
-			message = "HTTP 500: Internal server error. Please try again later."
-			layout "message"
-		end
+    MainRouter.new(@context).setup
+    AdminRouter.new(@context).setup
+    ReaderRouter.new(@context).setup
+    APIRouter.new(@context).setup
 
-		MainRouter.new(@context).setup
-		AdminRouter.new(@context).setup
-		ReaderRouter.new(@context).setup
-		APIRouter.new(@context).setup
+    Kemal.config.logging = false
+    add_handler LogHandler.new @context.logger
+    add_handler AuthHandler.new @context.storage
+    {% if flag?(:release) %}
+      # when building for relase, embed the static files in binary
+      @context.debug "We are in release mode. Using embedded static files."
+      serve_static false
+      add_handler StaticHandler.new
+    {% end %}
+  end
 
-		Kemal.config.logging = false
-		add_handler LogHandler.new @context.logger
-		add_handler AuthHandler.new @context.storage
-		{% if flag?(:release) %}
-			# when building for relase, embed the static files in binary
-			@context.debug "We are in release mode. Using embedded static files."
-			serve_static false
-			add_handler StaticHandler.new
-		{% end %}
-	end
-
-	def start
-		@context.debug "Starting Kemal server"
-		{% if flag?(:release) %}
-			Kemal.config.env = "production"
-		{% end %}
-		Kemal.config.port = @context.config.port
-		Kemal.run
-	end
+  def start
+    @context.debug "Starting Kemal server"
+    {% if flag?(:release) %}
+      Kemal.config.env = "production"
+    {% end %}
+    Kemal.config.port = @context.config.port
+    Kemal.run
+  end
 end
diff --git a/src/static_handler.cr b/src/static_handler.cr
index f39cd46..f03eda4 100644
--- a/src/static_handler.cr
+++ b/src/static_handler.cr
@@ -3,30 +3,30 @@ require "kemal"
 require "./util"
 
 class FS
-	extend BakedFileSystem
-	{% if flag?(:release) %}
-		{% if read_file? "#{__DIR__}/../dist/favicon.ico" %}
-			{% puts "baking ../dist" %}
-			bake_folder "../dist"
-		{% else %}
-			{% puts "baking ../public" %}
-			bake_folder "../public"
-		{% end %}
-	{% end %}
+  extend BakedFileSystem
+  {% if flag?(:release) %}
+    {% if read_file? "#{__DIR__}/../dist/favicon.ico" %}
+      {% puts "baking ../dist" %}
+      bake_folder "../dist"
+    {% else %}
+      {% puts "baking ../public" %}
+      bake_folder "../public"
+    {% end %}
+  {% end %}
 end
 
 class StaticHandler < Kemal::Handler
-	@dirs = ["/css", "/js", "/img", "/favicon.ico"]
+  @dirs = ["/css", "/js", "/img", "/favicon.ico"]
 
-	def call(env)
-		if request_path_startswith env, @dirs
-			file = FS.get? env.request.path
-			return call_next env if file.nil?
+  def call(env)
+    if request_path_startswith env, @dirs
+      file = FS.get? env.request.path
+      return call_next env if file.nil?
 
-			slice = Bytes.new file.size
-			file.read slice
-			return send_file env, slice, file.mime_type
-		end
-		call_next env
-	end
+      slice = Bytes.new file.size
+      file.read slice
+      return send_file env, slice, file.mime_type
+    end
+    call_next env
+  end
 end
diff --git a/src/storage.cr b/src/storage.cr
index 8dc7cd3..c618cd3 100644
--- a/src/storage.cr
+++ b/src/storage.cr
@@ -4,174 +4,172 @@ require "uuid"
 require "base64"
 
 def hash_password(pw)
-	Crypto::Bcrypt::Password.create(pw).to_s
+  Crypto::Bcrypt::Password.create(pw).to_s
 end
 
 def verify_password(hash, pw)
-	(Crypto::Bcrypt::Password.new hash).verify pw
+  (Crypto::Bcrypt::Password.new hash).verify pw
 end
 
 def random_str
-	UUID.random.to_s.gsub "-", ""
+  UUID.random.to_s.gsub "-", ""
 end
 
 class Storage
-	def initialize(@path : String, @logger : Logger)
-		dir = File.dirname path
-		unless Dir.exists? dir
-			@logger.info "The DB directory #{dir} does not exist. " \
-				"Attepmting to create it"
-			Dir.mkdir_p dir
-		end
-		DB.open "sqlite3://#{path}" do |db|
-			begin
-				# We create the `ids` table first. even if the uses has an
-				#	early version installed and has the `user` table only,
-				#	we will still be able to create `ids`
-				db.exec "create table ids" \
-					"(path text, id text, is_title integer)"
-				db.exec "create unique index path_idx on ids (path)"
-				db.exec "create unique index id_idx on ids (id)"
+  def initialize(@path : String, @logger : Logger)
+    dir = File.dirname path
+    unless Dir.exists? dir
+      @logger.info "The DB directory #{dir} does not exist. " \
+                   "Attepmting to create it"
+      Dir.mkdir_p dir
+    end
+    DB.open "sqlite3://#{path}" do |db|
+      begin
+        # We create the `ids` table first. even if the uses has an
+        #   early version installed and has the `user` table only,
+        #   we will still be able to create `ids`
+        db.exec "create table ids" \
+                "(path text, id text, is_title integer)"
+        db.exec "create unique index path_idx on ids (path)"
+        db.exec "create unique index id_idx on ids (id)"
 
-				db.exec "create table users" \
-					"(username text, password text, token text, admin integer)"
-			rescue e
-				unless e.message.not_nil!.ends_with? "already exists"
-					@logger.fatal "Error when checking tables in DB: #{e}"
-					raise e
-				end
-			else
-				@logger.debug "Creating DB file at #{@path}"
-				db.exec "create unique index username_idx on users (username)"
-				db.exec "create unique index token_idx on users (token)"
-				random_pw = random_str
-				hash = hash_password random_pw
-				db.exec "insert into users values (?, ?, ?, ?)",
-					"admin", hash, nil, 1
-				@logger.log "Initial user created. You can log in with " \
-					"#{{"username" => "admin", "password" => random_pw}}"
-			end
-		end
-	end
+        db.exec "create table users" \
+                "(username text, password text, token text, admin integer)"
+      rescue e
+        unless e.message.not_nil!.ends_with? "already exists"
+          @logger.fatal "Error when checking tables in DB: #{e}"
+          raise e
+        end
+      else
+        @logger.debug "Creating DB file at #{@path}"
+        db.exec "create unique index username_idx on users (username)"
+        db.exec "create unique index token_idx on users (token)"
+        random_pw = random_str
+        hash = hash_password random_pw
+        db.exec "insert into users values (?, ?, ?, ?)",
+          "admin", hash, nil, 1
+        @logger.log "Initial user created. You can log in with " \
+                    "#{{"username" => "admin", "password" => random_pw}}"
+      end
+    end
+  end
 
-	def verify_user(username, password)
-		DB.open "sqlite3://#{@path}" do |db|
-			begin
-				hash, token = db.query_one "select password, token from "\
-					"users where username = (?)", \
-					username, as: {String, String?}
-				unless verify_password hash, password
-					@logger.debug "Password does not match the hash"
-					return nil
-				end
-				@logger.debug "User #{username} verified"
-				return token if token
-				token = random_str
-				@logger.debug "Updating token for #{username}"
-				db.exec "update users set token = (?) where username = (?)",
-					token, username
-				return token
-			rescue e
-				@logger.error "Error when verifying user #{username}: #{e}"
-				return nil
-			end
-		end
-	end
+  def verify_user(username, password)
+    DB.open "sqlite3://#{@path}" do |db|
+      begin
+        hash, token = db.query_one "select password, token from " \
+                                   "users where username = (?)",
+          username, as: {String, String?}
+        unless verify_password hash, password
+          @logger.debug "Password does not match the hash"
+          return nil
+        end
+        @logger.debug "User #{username} verified"
+        return token if token
+        token = random_str
+        @logger.debug "Updating token for #{username}"
+        db.exec "update users set token = (?) where username = (?)",
+          token, username
+        return token
+      rescue e
+        @logger.error "Error when verifying user #{username}: #{e}"
+        return nil
+      end
+    end
+  end
 
-	def verify_token(token)
-		DB.open "sqlite3://#{@path}" do |db|
-			begin
-				username = db.query_one "select username from users where " \
-					"token = (?)", token, as: String
-				return username
-			rescue e
-				@logger.debug "Unable to verify token"
-				return nil
-			end
-		end
-	end
+  def verify_token(token)
+    DB.open "sqlite3://#{@path}" do |db|
+      begin
+        username = db.query_one "select username from users where " \
+                                "token = (?)", token, as: String
+        return username
+      rescue e
+        @logger.debug "Unable to verify token"
+        return nil
+      end
+    end
+  end
 
-	def verify_admin(token)
-		DB.open "sqlite3://#{@path}" do |db|
-			begin
-				return db.query_one "select admin from users where " \
-					"token = (?)", token, as: Bool
-			rescue e
-				@logger.debug "Unable to verify user as admin"
-				return false
-			end
-		end
-	end
+  def verify_admin(token)
+    DB.open "sqlite3://#{@path}" do |db|
+      begin
+        return db.query_one "select admin from users where " \
+                            "token = (?)", token, as: Bool
+      rescue e
+        @logger.debug "Unable to verify user as admin"
+        return false
+      end
+    end
+  end
 
-	def list_users
-		results = Array(Tuple(String, Bool)).new
-		DB.open "sqlite3://#{@path}" do |db|
-			db.query "select username, admin from users" do |rs|
-				rs.each do
-					results << {rs.read(String), rs.read(Bool)}
-				end
-			end
-		end
-		results
-	end
+  def list_users
+    results = Array(Tuple(String, Bool)).new
+    DB.open "sqlite3://#{@path}" do |db|
+      db.query "select username, admin from users" do |rs|
+        rs.each do
+          results << {rs.read(String), rs.read(Bool)}
+        end
+      end
+    end
+    results
+  end
 
-	def new_user(username, password, admin)
-		admin = (admin ? 1 : 0)
-		DB.open "sqlite3://#{@path}" do |db|
-			hash = hash_password password
-			db.exec "insert into users values (?, ?, ?, ?)",
-				username, hash, nil, admin
-		end
-	end
+  def new_user(username, password, admin)
+    admin = (admin ? 1 : 0)
+    DB.open "sqlite3://#{@path}" do |db|
+      hash = hash_password password
+      db.exec "insert into users values (?, ?, ?, ?)",
+        username, hash, nil, admin
+    end
+  end
 
-	def update_user(original_username, username, password, admin)
-		admin = (admin ? 1 : 0)
-		DB.open "sqlite3://#{@path}" do |db|
-			if password.size == 0
-				db.exec "update users set username = (?), admin = (?) "\
-					"where username = (?)",\
-					username, admin, original_username
-			else
-				hash = hash_password password
-				db.exec "update users set username = (?), admin = (?),"\
-					"password = (?) where username = (?)",\
-					username, admin, hash, original_username
-			end
-		end
-	end
+  def update_user(original_username, username, password, admin)
+    admin = (admin ? 1 : 0)
+    DB.open "sqlite3://#{@path}" do |db|
+      if password.size == 0
+        db.exec "update users set username = (?), admin = (?) " \
+                "where username = (?)",
+          username, admin, original_username
+      else
+        hash = hash_password password
+        db.exec "update users set username = (?), admin = (?)," \
+                "password = (?) where username = (?)",
+          username, admin, hash, original_username
+      end
+    end
+  end
 
-	def delete_user(username)
-		DB.open "sqlite3://#{@path}" do |db|
-			db.exec "delete from users where username = (?)", username
-		end
-	end
+  def delete_user(username)
+    DB.open "sqlite3://#{@path}" do |db|
+      db.exec "delete from users where username = (?)", username
+    end
+  end
 
-	def logout(token)
-		DB.open "sqlite3://#{@path}" do |db|
-			begin
-				db.exec "update users set token = (?) where token = (?)", \
-					nil, token
-			rescue
-			end
-		end
-	end
+  def logout(token)
+    DB.open "sqlite3://#{@path}" do |db|
+      begin
+        db.exec "update users set token = (?) where token = (?)", nil, token
+      rescue
+      end
+    end
+  end
 
-	def get_id(path, is_title)
-		DB.open "sqlite3://#{@path}" do |db|
-			begin
-				id = db.query_one "select id from ids where path = (?)",
-					path, as: {String}
-				return id
-			rescue
-				id = random_str
-				db.exec "insert into ids values (?, ?, ?)", path, id,
-					is_title ? 1 : 0
-				return id
-			end
-		end
-	end
+  def get_id(path, is_title)
+    DB.open "sqlite3://#{@path}" do |db|
+      begin
+        id = db.query_one "select id from ids where path = (?)", path,
+          as: {String}
+        return id
+      rescue
+        id = random_str
+        db.exec "insert into ids values (?, ?, ?)", path, id, is_title ? 1 : 0
+        return id
+      end
+    end
+  end
 
-	def to_json(json : JSON::Builder)
-		json.string self
-	end
+  def to_json(json : JSON::Builder)
+    json.string self
+  end
 end
diff --git a/src/util.cr b/src/util.cr
index 8fb67c9..66fb5be 100644
--- a/src/util.cr
+++ b/src/util.cr
@@ -3,81 +3,81 @@ require "big"
 IMGS_PER_PAGE = 5
 
 macro layout(name)
-	begin
-		cookie = env.request.cookies.find { |c| c.name == "token" }
-		is_admin = false
-		unless cookie.nil?
-			is_admin = @context.storage.verify_admin cookie.value
-		end
-		render "src/views/#{{{name}}}.ecr", "src/views/layout.ecr"
-	rescue e
-		message = e.to_s
-		render "message"
-	end
+  begin
+    cookie = env.request.cookies.find { |c| c.name == "token" }
+    is_admin = false
+    unless cookie.nil?
+      is_admin = @context.storage.verify_admin cookie.value
+    end
+    render "src/views/#{{{name}}}.ecr", "src/views/layout.ecr"
+  rescue e
+    message = e.to_s
+    render "message"
+  end
 end
 
 macro send_img(env, img)
-	send_file {{env}}, {{img}}.data, {{img}}.mime
+  send_file {{env}}, {{img}}.data, {{img}}.mime
 end
 
 macro get_username(env)
-	# if the request gets here, it has gone through the auth handler, and
-	# 	we can be sure that a valid token exists, so we can use not_nil! here
-	cookie = {{env}}.request.cookies.find { |c| c.name == "token" }.not_nil!
-	(@context.storage.verify_token cookie.value).not_nil!
+  # if the request gets here, it has gone through the auth handler, and
+  #   we can be sure that a valid token exists, so we can use not_nil! here
+  cookie = {{env}}.request.cookies.find { |c| c.name == "token" }.not_nil!
+  (@context.storage.verify_token cookie.value).not_nil!
 end
 
 macro send_json(env, json)
-	{{env}}.response.content_type = "application/json"
-	{{json}}
+  {{env}}.response.content_type = "application/json"
+  {{json}}
 end
 
 def hash_to_query(hash)
-	hash.map { |k, v| "#{k}=#{v}" }.join("&")
+  hash.map { |k, v| "#{k}=#{v}" }.join("&")
 end
 
 def request_path_startswith(env, ary)
-	ary.each do |prefix|
-		if env.request.path.starts_with? prefix
-			return true
-		end
-	end
-	return false
+  ary.each do |prefix|
+    if env.request.path.starts_with? prefix
+      return true
+    end
+  end
+  return false
 end
 
 def is_numeric(str)
-	/^\d+/.match(str) != nil
+  /^\d+/.match(str) != nil
 end
 
 def split_by_alphanumeric(str)
-	arr = [] of String
-	str.scan(/([^\d\n\r]*)(\d*)([^\d\n\r]*)/) do |match|
-		arr += match.captures.select{|s| s != ""}
-	end
-	arr
+  arr = [] of String
+  str.scan(/([^\d\n\r]*)(\d*)([^\d\n\r]*)/) do |match|
+    arr += match.captures.select { |s| s != "" }
+  end
+  arr
 end
 
 def compare_alphanumerically(c, d)
-	is_c_bigger = c.size <=> d.size
-	if c.size > d.size
-		d += [nil] * (c.size - d.size)
-	elsif c.size < d.size
-		c += [nil] * (d.size - c.size)
-	end
-	c.zip(d) do |a, b|
-		return -1 if a.nil?
-		return 1 if b.nil?
-		if is_numeric(a) && is_numeric(b)
-			compare = a.to_big_i <=> b.to_big_i
-			return compare if compare != 0
-		else
-			compare = a <=> b
-			return compare if compare != 0
-		end
-	end
-	is_c_bigger
+  is_c_bigger = c.size <=> d.size
+  if c.size > d.size
+    d += [nil] * (c.size - d.size)
+  elsif c.size < d.size
+    c += [nil] * (d.size - c.size)
+  end
+  c.zip(d) do |a, b|
+    return -1 if a.nil?
+    return 1 if b.nil?
+    if is_numeric(a) && is_numeric(b)
+      compare = a.to_big_i <=> b.to_big_i
+      return compare if compare != 0
+    else
+      compare = a <=> b
+      return compare if compare != 0
+    end
+  end
+  is_c_bigger
 end
 
 def compare_alphanumerically(a : String, b : String)
-	compare_alphanumerically split_by_alphanumeric(a), split_by_alphanumeric(b)
+  compare_alphanumerically split_by_alphanumeric(a), split_by_alphanumeric(b)
 end