Add CLI command to fetch text track contents

src/teletube/cli.cr

@@ -52,6 +52,12 @@ module Teletube
           @client.get_browsable_waveform
         when "chapter-markers"
           @client.get_browsable_chapter_markers
+        when "text-tracks"
+          if context.params.has_key?("format")
+            @client.get_browsable_text_track
+          else
+            @client.get_browsable_text_tracks
+          end
         end
       when "config"
         @config.attributes = {

src/teletube/client.cr

@@ -93,7 +93,7 @@ module Teletube
           if response.status_code == 200
             offset = response.headers["Upload-Offset"].to_i
           elsif response.status_code == 423
-            sleep 10
+            sleep(1.second)
           end
         end
         offset
@@ -292,6 +292,36 @@ module Teletube
       handle_response(@http.get(path: "/api/v1/browse/videos/#{@context.params["video_id"]}/chapter_markers"))
     end
 
+    def get_browsable_text_tracks
+      handle_response(@http.get(path: "/api/v1/browse/videos/#{@context.params["video_id"]}/text_tracks"))
+    end
+
+    def get_browsable_text_track
+      response = get_browsable_text_tracks
+      if response.status_code == 200
+        text_tracks = JSON.parse(response.body).as_a
+        text_tracks.each do |text_track|
+          if @context.params.has_key?("language")
+            if @context.params["language"].as_s == text_track["language"].as_s
+              print_browsable_text_track(text_track)
+              return
+            end
+          else
+            print_browsable_text_track(text_track)
+            return
+          end
+        end
+      end
+    end
+
+    def print_browsable_text_track(text_track)
+      path = text_track["#{@context.params["format"]}_path"].as_s
+      response = handle_response(@http.get(path: path))
+      if response.status_code == 200
+        puts response.body
+      end
+    end
+
     def handle_response(response)
       STDERR.puts "⚡️ #{response.status} (#{response.status_code})"
       puts response.body unless response.body.blank?

src/teletube/option_parser.cr

@@ -295,6 +295,18 @@ module Teletube
               context.params["video_id"] = JSON::Any.new(id)
             end
           end
+          parser.on("text-tracks", "Show details for the text-tracks for a video.") do
+            context.command = "text-tracks"
+            parser.on("--video-id ID", "The public identifier of the video.") do |id|
+              context.params["video_id"] = JSON::Any.new(id)
+            end
+            parser.on("--language LANGUAGE", "Which of the tracks you want to fetch.") do |language|
+              context.params["language"] = JSON::Any.new(language)
+            end
+            parser.on("--format <srt|vvt|txt>", "Which of the tracks you want to fetch.") do |format|
+              context.params["format"] = JSON::Any.new(format)
+            end
+          end
         end
 
         parser.separator "Other options:"