function_calls

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:freezed_annotation/freezed_annotation.dart';

part 'shared_drawing.freezed.dart';
part 'shared_drawing.g.dart';

@freezed
class SharedDrawing with _$SharedDrawing {
  const factory SharedDrawing({
    required String id,
    required String userId,
    required String userName,
    required String userProfileImage,
    required String imageUrl,
    required String title,
    String? description,
    @Default(0) int likes,
    @Default(0) int comments,
    @Default(0) int saves,
    @Default(false) bool isLiked,
    @Default(false) bool isSaved,
    @Default(false) bool isPublic,
    required DateTime createdAt,
    DateTime? updatedAt,
  }) = _SharedDrawing;

  factory SharedDrawing.fromJson(Map<String, dynamic> json) =>
      _$SharedDrawingFromJson(json);

  static SharedDrawing fromFirestore(DocumentSnapshot doc, {String? currentUserId}) {
    final data = doc.data() as Map<String, dynamic>;
    final createdAtTimestamp = data['createdAt'] as Timestamp;
    final updatedAtTimestamp = data['updatedAt'] as Timestamp?;
    final likedBy = List<String>.from(data['likedBy'] ?? []);
    final savedBy = List<String>.from(data['savedBy'] ?? []);

    return SharedDrawing(
      id: doc.id,
      userId: data['userId'] as String,
      userName: data['userName'] as String,
      userProfileImage: data['userProfileImage'] as String,
      imageUrl: data['imageUrl'] as String,
      title: data['title'] as String,
      description: data['description'] as String?,
      likes: likedBy.length,
      saves: savedBy.length,
      comments: (data['comments'] as num?)?.toInt() ?? 0,
      isLiked: currentUserId != null && likedBy.contains(currentUserId),
      isSaved: currentUserId != null && savedBy.contains(currentUserId),
      isPublic: data['isPublic'] as bool? ?? false,
      createdAt: createdAtTimestamp.toDate(),
      updatedAt: updatedAtTimestamp?.toDate(),
    );
  }
}