[addon] add quality exclude filter config option

addon/lib/filter.js

@@ -0,0 +1,114 @@
+const Providers = [
+  'YTS',
+  'EZTV',
+  'RARBG',
+  '1337x',
+  'ThePirateBay',
+  'KickassTorrents',
+  'TorrentGalaxy',
+  'Rutor',
+  'HorribleSubs',
+  'NyaaSi',
+  'NyaaPantsu'
+];
+const QualityFilter = {
+  key: 'qualityfilter',
+  options: [
+    {
+      key: "4k",
+      label: "4k",
+      items: ["4k"],
+      test(quality) {
+        return this.items.includes(quality);
+      }
+    },
+    {
+      key: "1080p",
+      label: "1080p",
+      items: ["1080p"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "720p",
+      label: "720p",
+      items: ["720p"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "480p",
+      label: "480p",
+      items: ["480p"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "sd",
+      label: "SD",
+      items: ["DVDRip", "HDRip", "BDRip", "BRRip", "BluRay", "WED-DL", "WEBRip", "HDTV", "DivX", "XviD"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "scr",
+      label: "Screener",
+      items: ["SCR"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "cam",
+      label: "Cam",
+      items: ["CAM", "TeleSync", "TeleCine"],
+      test(quality) {
+        return this.items.includes(quality)
+      }
+    },
+    {
+      key: "unknown",
+      label: "Unknown",
+      test(quality) {
+        return !quality
+      }
+    }
+  ]
+};
+const defaultProviderKeys = Providers.map(provider => provider.toLowerCase());
+
+function applyFilters(streams, config) {
+  return filterByQuality(filterByProvider(streams, config), config);
+}
+
+function filterByProvider(streams, config) {
+  const providers = config.providers || defaultProviderKeys;
+  if (!providers || !providers.length) {
+    return streams;
+  }
+  return streams.filter(stream => {
+    const match = stream.title.match(/⚙.* ([^ \n]+)/);
+    const provider = match && match[1].toLowerCase();
+    return providers.includes(provider);
+  })
+}
+
+function filterByQuality(streams, config) {
+  const filters = config[QualityFilter.key];
+  if (!filters) {
+    return streams;
+  }
+  const filterOptions = QualityFilter.options.filter(option => filters.includes(option.key));
+  return streams.filter(stream => {
+    const streamQuality = stream.name.split('\n')[1];
+    return !filterOptions.some(option => option.test(streamQuality));
+  });
+}
+
+module.exports = applyFilters;
+module.exports.Providers = Providers;
+module.exports.QualityFilter = QualityFilter;