refactor: split modules and harden scraping workflows

web/src/pages/playerPageModel.ts

@@ -0,0 +1,21 @@
+import type { Media } from '../types'
+
+export type PlayerMode = 'direct' | 'hls'
+
+const directContainers = ['mp4', 'webm', 'm4v']
+const directVideoCodecs = ['h264', 'avc', 'avc1']
+const directAudioCodecs = ['aac', 'mp3', 'opus']
+
+export function pickPlayerMode(media: Media): PlayerMode {
+  return needsTranscodeForBrowser(media) ? 'hls' : 'direct'
+}
+
+export function needsTranscodeForBrowser(media: Media): boolean {
+  const container = (media.container ?? '').toLowerCase()
+  const videoCodec = (media.video_codec ?? '').toLowerCase()
+  const audioCodec = (media.audio_codec ?? '').toLowerCase()
+  const containerOK = directContainers.some((item) => container.includes(item))
+  const videoOK = !videoCodec || directVideoCodecs.some((item) => videoCodec.includes(item))
+  const audioOK = !audioCodec || directAudioCodecs.some((item) => audioCodec.includes(item))
+  return !(containerOK && videoOK && audioOK)
+}