import '../contracts/danmaku.dart';
import 'danmaku_comment_merger.dart';


List<DanmakuComment> processDanmakuComments(
  List<DanmakuComment> comments, {
  required List<String> blockedKeywords,
  required bool mergeDuplicates,
}) {
  final visible = blockedKeywords.isEmpty
      ? comments
      : comments
            .where((c) => blockedKeywords.every((kw) => !c.text.contains(kw)))
            .toList();
  final processed = mergeDuplicates
      ? mergeDuplicateDanmakuComments(visible)
      : List<DanmakuComment>.of(visible);
  processed.sort((a, b) => a.time.compareTo(b.time));
  return processed;
}


int lowerBoundByTime(List<DanmakuComment> sortedByTime, double posSec) {
  var lo = 0;
  var hi = sortedByTime.length;
  while (lo < hi) {
    final mid = (lo + hi) >> 1;
    if (sortedByTime[mid].time < posSec) {
      lo = mid + 1;
    } else {
      hi = mid;
    }
  }
  return lo;
}