From e7583ce788728ad248553f9201df0072a582c20a Mon Sep 17 00:00:00 2001
From: Alex Ling <hkalexling@gmail.com>
Date: Sun, 16 Feb 2020 04:01:30 +0000
Subject: [PATCH] - create scan method to prepare for periodic scanning

---
 src/library.cr | 23 ++++++++++++++---------
 src/server.cr  |  2 +-
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/library.cr b/src/library.cr
index e6b3b96..8d416e4 100644
--- a/src/library.cr
+++ b/src/library.cr
@@ -144,17 +144,22 @@ end
 class Library
 	JSON.mapping dir: String, titles: Array(Title)
 
-	def initialize(dir : String)
-		@dir = dir
-		unless Dir.exists? dir
-			Dir.mkdir_p dir
-		end
-		@titles = (Dir.entries dir)
-			.select { |path| File.directory? File.join dir, path }
-			.map { |path| Title.new File.join dir, path }
-			.select { |title| !title.entries.empty? }
+	def initialize(@dir)
+		# explicitly initialize @titles to bypass the compiler check. it will
+		#	be filled with actuall Titles in the `scan` call below
+		@titles = [] of Title
+		scan
 	end
 	def get_title(name)
 		@titles.find { |t| t.title == name }
 	end
+	def scan
+		unless Dir.exists? @dir
+			Dir.mkdir_p @dir
+		end
+		@titles = (Dir.entries @dir)
+			.select { |path| File.directory? File.join @dir, path }
+			.map { |path| Title.new File.join @dir, path }
+			.select { |title| !title.entries.empty? }
+	end
 end
diff --git a/src/server.cr b/src/server.cr
index 3374c8d..1f43ebe 100644
--- a/src/server.cr
+++ b/src/server.cr
@@ -265,7 +265,7 @@ class Server
 
 		post "/api/admin/scan" do |env|
 			start = Time.utc
-			@library = Library.new @config.@library_path
+			@library.scan
 			ms = (Time.utc - start).total_milliseconds
 			send_json env, {
 				"milliseconds" => ms,