Subscription management API endpoints

public/js/plugin-download.js

@@ -378,7 +378,7 @@ const component = () => {
 		},
 		subscribe(modal) {
 			this.subscribing = true;
-			fetch(`${base_url}api/admin/plugin/subscribe`, {
+			fetch(`${base_url}api/admin/plugin/subscriptions`, {
 				method: "POST",
 				body: JSON.stringify({
 					filters: this.filterSettings,

src/plugin/plugin.cr

@@ -145,7 +145,7 @@ class Plugin
 
   def unsubscribe(id : String)
     list = SubscriptionList.new info.dir
-    list.reject &.id.== id
+    list.reject! &.id.== id
     list.save
   end
 

src/routes/api.cr

@@ -626,7 +626,7 @@ struct APIRouter
       end
     end
 
-    post "/api/admin/plugin/subscribe" do |env|
+    post "/api/admin/plugin/subscriptions" do |env|
       begin
         plugin_id = env.params.json["plugin"].as String
         filters = env.params.json["filters"].as(Array(JSON::Any)).map do |f|
@@ -652,6 +652,41 @@ struct APIRouter
       end
     end
 
+    get "/api/admin/plugin/subscriptions" do |env|
+      begin
+        pid = env.params.query["plugin"].as String
+        send_json env, {
+          "success"       => true,
+          "subscriptions" => Plugin.new(pid).list_subscriptions,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
+    delete "/api/admin/plugin/subscriptions" do |env|
+      begin
+        pid = env.params.query["plugin"].as String
+        sid = env.params.query["subscription"].as String
+
+        Plugin.new(pid).unsubscribe sid
+
+        send_json env, {
+          "success" => true,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
     Koa.describe "Lists the chapters in a title from a plugin"
     Koa.tags ["admin", "downloader"]
     Koa.query "plugin", schema: String