LiveStreamPlayerState

Pure description of what the live player should display right now. Computed from the latest LiveStream + LiveStreamPlayData snapshot plus the wall clock — no Android types, no coroutines, no mutable state. Lives here so we can unit-test the entire web-player decision tree without spinning up a player.

The branches mirror Bunny's web player:

• Loading — first poll hasn't returned yet.

• Offline — one of "Live stream not active", "Live stream ended", "Live stream error", with a reason tag so the UI can render the right copy.

• Countdown — Scheduled stream with enableCountdown == true and a future scheduledStartTime. UI ticks the timer locally; transition to playback is driven by the poll, not by the timer hitting zero.

• Trailer — Pre-stream trailer loop. Only when preStreamTrailerVideoId is set, the stream hasn't started (startedAt == null, status in {Created, Scheduled, Error}), and we've already resolved the trailer's HLS URL.

• LivePlay — Stream is Running. Play hlsUrl.

• VodPlay — Stream is Ended or VodProcessing AND recordVod == true AND a playable URL is available.

Note that the state resolver does not read LiveStreamPlayData.videoPlaylistUrl directly — the caller is responsible for picking the right URL (videoPlaylistUrl > fallbackUrl > playbackUrlHls) and passing it in. This keeps the resolver decoupled from URL-priority bugs.

Inheritors