Extract API routes from invidious.cr (2/?)

- Video playback endpoints
- Search feed api
- Video info api

src/invidious/routes/api/v1/search.cr

@@ -0,0 +1,101 @@
+module Invidious::Routes::APIv1
+  def self.search(env)
+    locale = LOCALES[env.get("preferences").as(Preferences).locale]?
+    region = env.params.query["region"]?
+
+    env.response.content_type = "application/json"
+
+    query = env.params.query["q"]?
+    query ||= ""
+
+    page = env.params.query["page"]?.try &.to_i?
+    page ||= 1
+
+    sort_by = env.params.query["sort_by"]?.try &.downcase
+    sort_by ||= "relevance"
+
+    date = env.params.query["date"]?.try &.downcase
+    date ||= ""
+
+    duration = env.params.query["duration"]?.try &.downcase
+    duration ||= ""
+
+    features = env.params.query["features"]?.try &.split(",").map { |feature| feature.downcase }
+    features ||= [] of String
+
+    content_type = env.params.query["type"]?.try &.downcase
+    content_type ||= "video"
+
+    begin
+      search_params = produce_search_params(page, sort_by, date, content_type, duration, features)
+    rescue ex
+      return error_json(400, ex)
+    end
+
+    count, search_results = search(query, search_params, region).as(Tuple)
+    JSON.build do |json|
+      json.array do
+        search_results.each do |item|
+          item.to_json(locale, json)
+        end
+      end
+    end
+  end
+
+  def self.channel_search(env)
+    locale = LOCALES[env.get("preferences").as(Preferences).locale]?
+
+    env.response.content_type = "application/json"
+
+    ucid = env.params.url["ucid"]
+
+    query = env.params.query["q"]?
+    query ||= ""
+
+    page = env.params.query["page"]?.try &.to_i?
+    page ||= 1
+
+    count, search_results = channel_search(query, page, ucid)
+    JSON.build do |json|
+      json.array do
+        search_results.each do |item|
+          item.to_json(locale, json)
+        end
+      end
+    end
+  end
+
+  def self.search_suggestions(env)
+    locale = LOCALES[env.get("preferences").as(Preferences).locale]?
+    region = env.params.query["region"]?
+
+    env.response.content_type = "application/json"
+
+    query = env.params.query["q"]?
+    query ||= ""
+
+    begin
+      headers = HTTP::Headers{":authority" => "suggestqueries.google.com"}
+      response = YT_POOL.client &.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback", headers).body
+
+      body = response[35..-2]
+      body = JSON.parse(body).as_a
+      suggestions = body[1].as_a[0..-2]
+
+      JSON.build do |json|
+        json.object do
+          json.field "query", body[0].as_s
+          json.field "suggestions" do
+            json.array do
+              suggestions.each do |suggestion|
+                json.string suggestion[0].as_s
+              end
+            end
+          end
+        end
+      end
+    rescue ex
+      return error_json(500, ex)
+    end
+  end
+end