Function mapProgramsByChannel

frontend/src/utils/guideUtils.js:63–105

(programs, channelIdByTvgId)

}

export const mapProgramsByChannel = (programs, channelIdByTvgId) => {
  if (!programs?.length || !channelIdByTvgId?.size) {
    return new Map();
  }

  const map = new Map();
  const nowMs = getNowMs();

  programs.forEach((program) => {
    const channelIds = channelIdByTvgId.get(String(program.tvg_id));
    if (!channelIds || channelIds.length === 0) {
      return;
    }

    const startMs = program.startMs ?? convertToMs(program.start_time);
    const endMs = program.endMs ?? convertToMs(program.end_time);

    const programData = {
      ...program,
      startMs,
      endMs,
      programStart: initializeTime(startMs),
      programEnd: initializeTime(endMs),
      // Precompute live/past status
      isLive: nowMs >= startMs && nowMs < endMs,
      isPast: nowMs >= endMs,
    };

    // Add this program to all channels that share the same TVG ID
    channelIds.forEach((channelId) => {
      if (!map.has(channelId)) {
        map.set(channelId, []);
      }
      map.get(channelId).push(programData);
    });
  });

  map.forEach((list) => {
    list.sort((a, b) => a.startMs - b.startMs);
  });

  return map;
};

export function computeRowHeights(
  filteredChannels,