import 'package:isar/isar.dart';

part 'point_record.g.dart';

enum PointRecordStatus {
  draft,
  completed,
}

@embedded
class HitPoint {
  HitPoint({
    this.arrowIndex = 0,
    this.endIndex = 0,
    this.normalizedX = 0,
    this.normalizedY = 0,
    this.score,
    this.isMiss = false,
  });

  int arrowIndex;
  int endIndex;

  /// Range: -1.0 ~ 1.0. The painter can map the normalized coordinate
  /// directly onto different target canvases.
  double normalizedX;
  double normalizedY;

  int? score;
  bool isMiss;
}

@collection
class PointRecord {
  PointRecord();

  Id id = Isar.autoIncrement;

  @Index(type: IndexType.value)
  late DateTime updatedAt;

  @Index(type: IndexType.value)
  late DateTime createdAt;

  @Index(type: IndexType.value)
  DateTime? completedAt;

  @enumerated
  PointRecordStatus status = PointRecordStatus.draft;

  /// Matches [BowOption.id] from point book config.
  @Index(type: IndexType.value)
  int bowOptionId = 1;

  late String bowName;

  /// Matches [TargetOption.id] from point book config.
  @Index(type: IndexType.value)
  int targetOptionId = 1;

  late String targetName;

  late String title;
  int distanceMeters = 18;
  int endCount = 6;
  int arrowsPerEnd = 6;
  String? note;
  List<int> scores = <int>[];
  List<HitPoint> hitPoints = <HitPoint>[];

  bool get isDraft => status == PointRecordStatus.draft;
  int get totalArrows => scores.length;
  int get totalScore => scores.fold<int>(0, (sum, item) => sum + item);
  double? get averageScore =>
      scores.isEmpty ? null : totalScore / scores.length;

  factory PointRecord.createDraft({
    required int bowOptionId,
    required String bowName,
    required int targetOptionId,
    required String targetName,
    required int distanceMeters,
    required int endCount,
    required int arrowsPerEnd,
    String? title,
    DateTime? now,
  }) {
    final current = now ?? DateTime.now();

    return PointRecord()
      ..title = title ?? '未完成记分'
      ..status = PointRecordStatus.draft
      ..bowOptionId = bowOptionId
      ..bowName = bowName
      ..targetOptionId = targetOptionId
      ..targetName = targetName
      ..distanceMeters = distanceMeters
      ..endCount = endCount
      ..arrowsPerEnd = arrowsPerEnd
      ..createdAt = current
      ..updatedAt = current;
  }

  PointRecord markCompleted({DateTime? completedAt}) {
    final current = completedAt ?? DateTime.now();

    return PointRecord()
      ..id = id
      ..title = title
      ..status = PointRecordStatus.completed
      ..bowOptionId = bowOptionId
      ..bowName = bowName
      ..targetOptionId = targetOptionId
      ..targetName = targetName
      ..distanceMeters = distanceMeters
      ..endCount = endCount
      ..arrowsPerEnd = arrowsPerEnd
      ..note = note
      ..scores = List<int>.from(scores)
      ..hitPoints = List<HitPoint>.from(hitPoints)
      ..createdAt = createdAt
      ..updatedAt = current
      ..completedAt = current;
  }

  /// Returns a draft copy with updated scores/hit points (used while editing).
  PointRecord copyWithScores(List<int> scores, List<HitPoint> hitPoints) {
    return PointRecord()
      ..id = id
      ..title = title
      ..status = status
      ..bowOptionId = bowOptionId
      ..bowName = bowName
      ..targetOptionId = targetOptionId
      ..targetName = targetName
      ..distanceMeters = distanceMeters
      ..endCount = endCount
      ..arrowsPerEnd = arrowsPerEnd
      ..note = note
      ..scores = List<int>.from(scores)
      ..hitPoints = List<HitPoint>.from(hitPoints)
      ..createdAt = createdAt
      ..updatedAt = DateTime.now()
      ..completedAt = completedAt;
  }
}