Add a function to build youtube search filters

(it aims at replacing produce_search_params)

spec/invidious/helpers_spec.cr

@@ -29,20 +29,6 @@ Spectator.describe "Helper" do
     end
   end
 
-  describe "#produce_search_params" do
-    it "correctly produces token for searching with specified filters" do
-      expect(produce_search_params).to eq("CAASAhABSAA%3D")
-
-      expect(produce_search_params(sort: "upload_date", content_type: "video")).to eq("CAISAhABSAA%3D")
-
-      expect(produce_search_params(content_type: "playlist")).to eq("CAASAhADSAA%3D")
-
-      expect(produce_search_params(sort: "date", content_type: "video", features: ["hd", "cc", "purchased", "hdr"])).to eq("CAISCxABIAEwAUgByAEBSAA%3D")
-
-      expect(produce_search_params(content_type: "channel")).to eq("CAASAhACSAA%3D")
-    end
-  end
-
   describe "#produce_comment_continuation" do
     it "correctly produces a continuation token for comments" do
       expect(produce_comment_continuation("_cE8xSu6swE", "ADSJ_i2qvJeFtL0htmS5_K5Ctj3eGFVBMWL9Wd42o3kmUL6_mAzdLp85-liQZL0mYr_16BhaggUqX652Sv9JqV6VXinShSP-ZT6rL4NolPBaPXVtJsO5_rA_qE3GubAuLFw9uzIIXU2-HnpXbdgPLWTFavfX206hqWmmpHwUOrmxQV_OX6tYkM3ux3rPAKCDrT8eWL7MU3bLiNcnbgkW8o0h8KYLL_8BPa8LcHbTv8pAoNkjerlX1x7K4pqxaXPoyz89qNlnh6rRx6AXgAzzoHH1dmcyQ8CIBeOHg-m4i8ZxdX4dP88XWrIFg-jJGhpGP8JUMDgZgavxVx225hUEYZMyrLGler5em4FgbG62YWC51moLDLeYEA")).to eq("EkMSC19jRTh4U3U2c3dFyAEA4AEBogINKP___________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%3D")

spec/invidious/search/yt_filters_spec.cr

@@ -0,0 +1,92 @@
+require "../../../src/invidious/search/filters"
+
+require "http/params"
+require "spectator"
+
+Spectator.configure do |config|
+  config.fail_blank
+  config.randomize
+end
+
+# Encoded filter values are extracted from the search
+# page of Youtube with any browser devtools HTML inspector.
+
+DATE_FILTERS = {
+  Invidious::Search::Filters::Date::Hour  => "EgIIAQ%3D%3D",
+  Invidious::Search::Filters::Date::Today => "EgIIAg%3D%3D",
+  Invidious::Search::Filters::Date::Week  => "EgIIAw%3D%3D",
+  Invidious::Search::Filters::Date::Month => "EgIIBA%3D%3D",
+  Invidious::Search::Filters::Date::Year  => "EgIIBQ%3D%3D",
+}
+
+TYPE_FILTERS = {
+  Invidious::Search::Filters::Type::Video    => "EgIQAQ%3D%3D",
+  Invidious::Search::Filters::Type::Channel  => "EgIQAg%3D%3D",
+  Invidious::Search::Filters::Type::Playlist => "EgIQAw%3D%3D",
+  Invidious::Search::Filters::Type::Movie    => "EgIQBA%3D%3D",
+}
+
+DURATION_FILTERS = {
+  Invidious::Search::Filters::Duration::Short  => "EgIYAQ%3D%3D",
+  Invidious::Search::Filters::Duration::Medium => "EgIYAw%3D%3D",
+  Invidious::Search::Filters::Duration::Long   => "EgIYAg%3D%3D",
+}
+
+FEATURE_FILTERS = {
+  Invidious::Search::Filters::Features::Live       => "EgJAAQ%3D%3D",
+  Invidious::Search::Filters::Features::FourK      => "EgJwAQ%3D%3D",
+  Invidious::Search::Filters::Features::HD         => "EgIgAQ%3D%3D",
+  Invidious::Search::Filters::Features::Subtitles  => "EgIoAQ%3D%3D",
+  Invidious::Search::Filters::Features::CCommons   => "EgIwAQ%3D%3D",
+  Invidious::Search::Filters::Features::ThreeSixty => "EgJ4AQ%3D%3D",
+  Invidious::Search::Filters::Features::VR180      => "EgPQAQE%3D",
+  Invidious::Search::Filters::Features::ThreeD     => "EgI4AQ%3D%3D",
+  Invidious::Search::Filters::Features::HDR        => "EgPIAQE%3D",
+  Invidious::Search::Filters::Features::Location   => "EgO4AQE%3D",
+  Invidious::Search::Filters::Features::Purchased  => "EgJIAQ%3D%3D",
+}
+
+SORT_FILTERS = {
+  Invidious::Search::Filters::Sort::Relevance => "",
+  Invidious::Search::Filters::Sort::Date      => "CAI%3D",
+  Invidious::Search::Filters::Sort::Views     => "CAM%3D",
+  Invidious::Search::Filters::Sort::Rating    => "CAE%3D",
+}
+
+Spectator.describe Invidious::Search::Filters do
+  # -------------------
+  #  Encode YT params
+  # -------------------
+
+  describe "#to_yt_params" do
+    sample DATE_FILTERS do |value, result|
+      it "Encodes upload date filter '#{value}'" do
+        expect(described_class.new(date: value).to_yt_params).to eq(result)
+      end
+    end
+
+    sample TYPE_FILTERS do |value, result|
+      it "Encodes content type filter '#{value}'" do
+        expect(described_class.new(type: value).to_yt_params).to eq(result)
+      end
+    end
+
+    sample DURATION_FILTERS do |value, result|
+      it "Encodes duration filter '#{value}'" do
+        expect(described_class.new(duration: value).to_yt_params).to eq(result)
+      end
+    end
+
+    sample FEATURE_FILTERS do |value, result|
+      it "Encodes feature filter '#{value}'" do
+        expect(described_class.new(features: value).to_yt_params).to eq(result)
+      end
+    end
+
+    sample SORT_FILTERS do |value, result|
+      it "Encodes sort filter '#{value}'" do
+        expect(described_class.new(sort: value).to_yt_params).to eq(result)
+      end
+    end
+  end
+end