// lib/features/events/models/event_models.dart
import '../../../core/api/api_endpoints.dart';

class EventTypeModel {
  final int id;
  final String name;
  final String? iconUrl;

  EventTypeModel({required this.id, required this.name, this.iconUrl});

  /// Resolve a relative media path (e.g. `/media/...`) to a full URL.
  static String? _resolveMediaUrl(String? raw) {
    if (raw == null || raw.isEmpty) return null;
    if (raw.startsWith('http://') || raw.startsWith('https://')) return raw;
    return '${ApiEndpoints.mediaBaseUrl}$raw';
  }

  factory EventTypeModel.fromJson(Map<String, dynamic> j) {
    return EventTypeModel(
      id: j['id'] as int,
      name: (j['event_type'] ?? j['name'] ?? '') as String,
      iconUrl: _resolveMediaUrl((j['event_type_icon'] ?? j['icon_url']) as String?),
    );
  }
}

class EventImageModel {
  final bool isPrimary;
  final String image;

  EventImageModel({required this.isPrimary, required this.image});

  factory EventImageModel.fromJson(Map<String, dynamic> j) {
    return EventImageModel(
      isPrimary: j['is_primary'] == true,
      image: EventTypeModel._resolveMediaUrl(j['image'] as String?) ?? '',
    );
  }
}

class EventModel {
  final int id;
  final String name;
  final String? title;
  final String? description;
  final String startDate; // YYYY-MM-DD
  final String endDate;
  final String? startTime;
  final String? endTime;
  final String? pincode;
  final String? place;
  final bool isBookable;
  final int? eventTypeId;
  final String? thumbImg;
  final List<EventImageModel> images;

  // NEW fields mapped from backend
  final String? importantInformation;
  final String? venueName;
  final String? eventStatus;
  final String? cancelledReason;

  // Geo / location fields
  final double? latitude;
  final double? longitude;
  final String? locationName;

  // Structured important info list [{title, value}, ...]
  final List<Map<String, String>> importantInfo;

  // Review stats (populated when backend includes them)
  final double? averageRating;
  final int? reviewCount;

  // Contributor fields (EVT-001)
  final String? contributorId;
  final String? contributorName;
  final String? contributorTier;

  EventModel({
    required this.id,
    required this.name,
    this.title,
    this.description,
    required this.startDate,
    required this.endDate,
    this.startTime,
    this.endTime,
    this.pincode,
    this.place,
    this.isBookable = true,
    this.eventTypeId,
    this.thumbImg,
    this.images = const [],
    this.importantInformation,
    this.venueName,
    this.eventStatus,
    this.cancelledReason,
    this.latitude,
    this.longitude,
    this.locationName,
    this.importantInfo = const [],
    this.averageRating,
    this.reviewCount,
    this.contributorId,
    this.contributorName,
    this.contributorTier,
  });

  /// Safely parse a double from backend (may arrive as String or num)
  static double? _parseDouble(dynamic raw) {
    if (raw == null) return null;
    if (raw is num) return raw.toDouble();
    if (raw is String) return double.tryParse(raw);
    return null;
  }

  /// Safely parse important_info from backend (list of {title, value} maps)
  static List<Map<String, String>> _parseImportantInfo(dynamic raw) {
    if (raw is List) {
      return raw.map<Map<String, String>>((e) {
        if (e is Map) {
          return {
            'title': (e['title'] ?? '').toString(),
            'value': (e['value'] ?? '').toString(),
          };
        }
        return {'title': '', 'value': e.toString()};
      }).toList();
    }
    return [];
  }

  factory EventModel.fromJson(Map<String, dynamic> j) {
    final imgs = <EventImageModel>[];
    if (j['images'] is List) {
      for (final im in j['images']) {
        if (im is Map<String, dynamic>) imgs.add(EventImageModel.fromJson(im));
      }
    }

    return EventModel(
      id: j['id'] is int ? j['id'] as int : int.parse(j['id'].toString()),
      name: (j['name'] ?? '') as String,
      title: j['title'] as String?,
      description: j['description'] as String?,
      startDate: (j['start_date'] ?? '') as String,
      endDate: (j['end_date'] ?? '') as String,
      startTime: j['start_time'] as String?,
      endTime: j['end_time'] as String?,
      pincode: j['pincode'] as String?,
      place: (j['place'] ?? j['venue_name']) as String?,
      isBookable: j['is_bookable'] == null ? true : (j['is_bookable'] == true || j['is_bookable'].toString().toLowerCase() == 'true'),
      eventTypeId: j['event_type'] is int ? j['event_type'] as int : (j['event_type'] != null ? int.tryParse(j['event_type'].toString()) : null),
      thumbImg: EventTypeModel._resolveMediaUrl(j['thumb_img'] as String?),
      images: imgs,
      importantInformation: j['important_information'] as String?,
      venueName: j['venue_name'] as String?,
      eventStatus: j['event_status'] as String?,
      cancelledReason: j['cancelled_reason'] as String?,
      latitude: _parseDouble(j['latitude']),
      longitude: _parseDouble(j['longitude']),
      locationName: j['location_name'] as String?,
      importantInfo: _parseImportantInfo(j['important_info']),
      averageRating: (j['average_rating'] as num?)?.toDouble(),
      reviewCount: (j['review_count'] as num?)?.toInt(),
      contributorId: j['contributor_id']?.toString(),
      contributorName: j['contributor_name'] as String?,
      contributorTier: j['contributor_tier'] as String?,
    );
  }
}