From bf91c7ef4f374a78bff46a42a85c0426b0abf7d0 Mon Sep 17 00:00:00 2001
From: Indrajith K L
Date: Mon, 6 Nov 2023 06:12:28 +0530
Subject: Initial Commit

* Listener Implementation - In-Progress
* Initial API Endpoints and Websocket implementation
  * API End Points Implemented -> /music_changed, /state_change
  * Websocket End Points implemented -> /i_am_listening_to
* Socket Implementation - In-Progress
---
 src/wialt_listener.cr | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/wialt_listener.cr

(limited to 'src/wialt_listener.cr')

diff --git a/src/wialt_listener.cr b/src/wialt_listener.cr
new file mode 100644
index 0000000..7c4d01e
--- /dev/null
+++ b/src/wialt_listener.cr
@@ -0,0 +1,52 @@
+# TODO: Write documentation for `WialtListener`
+require "kemal"
+
+class MusicChange
+  include JSON::Serializable
+
+  property title : String
+end
+
+
+module WialtListener
+  VERSION = "0.1.0"
+  sockets = [] of HTTP::WebSocket
+
+  static_headers do |response|
+    response.headers.add("Access-Control-Allow-Origin", "")
+  end
+
+  post "/music_changed" do |env|
+    response = MusicChange.from_json env.request.body.not_nil!
+    puts "#{response.title}"
+    send_message_to_clients(sockets, response.title)
+    {status: "OK"}
+  end
+
+  post "/state_change" do |env|
+    puts "#{env.request.body}"
+    {status: "OK"}
+  end
+
+  ws "/i_am_listening_to" do |socket|
+    sockets.push socket
+
+    socket.on_message do |message|
+      send_message_to_clients(sockets, message)
+    end
+
+    socket.on_close do |_|
+      sockets.delete(socket)
+      puts "Closing Socket: #{socket}"
+    end
+
+  end
+
+  def self.send_message_to_clients(sockets, title)
+    sockets.each do |a_socket|
+      a_socket.send title
+    end
+  end
+
+  Kemal.run
+end
-- 
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