feat: implement a youtube client in order to fix #24

src/blocker.cr

@@ -6,7 +6,9 @@ class Castblock::Blocker
 
   @devices = Hash(Chromecast::Device, Channel(Nil)).new
 
-  def initialize(@chromecast : Chromecast, @sponsorblock : Sponsorblock, @seek_to_offset : Int32, @mute_ads : Bool, @skip_ads : Bool, @merge_threshold : Float64)
+  def initialize(@chromecast : Chromecast, @sponsorblock : Sponsorblock,
+                 @youtube : Youtube, @seek_to_offset : Int32, @mute_ads : Bool,
+                 @skip_ads : Bool, @merge_threshold : Float64)
   end
 
   def run : Nil

src/castblock.cr

@@ -3,6 +3,7 @@ require "clip"
 require "./blocker"
 require "./chromecast"
 require "./sponsorblock"
+require "./youtube"
 
 module Castblock
   VERSION = "0.1.0"
@@ -40,6 +41,12 @@ module Castblock
                 "Adjust this value to skip multiple adjacent segments that don't overlap.")]
     @merge_threshold = 0.0
 
+    @[Clip::Option("--youtube-api-key")]
+    @[Clip::Doc("An API key that will be used to search for the video is the " \
+                "chromecast does not send its id. If not API key is provided, " \
+                "it fallbacks on a scrapping way.")]
+    @youtube_api_key : String? = nil
+
     def read_env
       # If a config option equals its default value, we try to read it from the env.
       # This is a temporary hack while waiting for Clip to handle it in a better way.
@@ -49,6 +56,10 @@ module Castblock
       @categories = read_env_str_array(@categories, ["sponsor"], "CATEGORIES")
       @mute_ads = read_env_bool(@mute_ads, false, "MUTE_ADS")
       @merge_threshold = read_env_float(@merge_threshold, 0.0, "MERGE_THRESHOLD")
+
+      if @youtube_api_key.nil? && (var = ENV["YOUTUBE_API_KEY"]?)
+        @youtube_api_key = var
+      end
     end
 
     def read_env_bool(value : Bool?, default : Bool?, name : String) : Bool?
@@ -117,7 +128,8 @@ module Castblock
       end
 
       chromecast = Chromecast.new
-      blocker = Blocker.new(chromecast, sponsorblock, @seek_to_offset, @mute_ads, @skip_ads, @merge_threshold)
+      youtube = Youtube.new(@youtube_api_key)
+      blocker = Blocker.new(chromecast, sponsorblock, youtube, @seek_to_offset, @mute_ads, @skip_ads, @merge_threshold)
 
       blocker.run
     end

src/youtube.cr

@@ -0,0 +1,19 @@
+class Castblock::Youtube
+  def initialize(@api_key : String? = nil)
+  end
+
+  # Get the id of a video given its author name and title.
+  def get_video_id(author : String, title : String) : String?
+    if !@api_key.nil?
+      get_video_id_from_api(author, title)
+    else
+      get_video_id_from_scrapping(author, title)
+    end
+  end
+
+  private def get_video_id_from_api(author : String, title : String) : String?
+  end
+
+  private def get_video_id_from_scrapping(author : String, title : String) : String?
+  end
+end