import 'package:tm_app/core/utils/date_utils.dart';
import 'package:tm_app/data/services/model/tender_data/tender_data.dart';

class TenderSubmissionResponse {
  const TenderSubmissionResponse({
    required this.success,
    required this.message,
    required this.data,
  });

  final bool success;
  final String? message;
  final TenderSubmission? data;

  factory TenderSubmissionResponse.fromJson(Map<String, dynamic> json) {
    final data = json['data'];
    return TenderSubmissionResponse(
      success: json['success'] == true,
      message: json['message'] as String?,
      data:
          data is Map<String, dynamic> ? TenderSubmission.fromJson(data) : null,
    );
  }
}

class TenderSubmissionsResponse {
  const TenderSubmissionsResponse({
    required this.success,
    required this.message,
    required this.data,
    required this.meta,
  });

  final bool success;
  final String? message;
  final List<TenderSubmission> data;
  final TenderSubmissionsMeta? meta;

  factory TenderSubmissionsResponse.fromJson(Map<String, dynamic> json) {
    final items = json['data'];
    return TenderSubmissionsResponse(
      success: json['success'] == true,
      message: json['message'] as String?,
      data:
          items is List
              ? items
                  .whereType<Map>()
                  .map(
                    (item) => TenderSubmission.fromJson(
                      Map<String, dynamic>.from(item),
                    ),
                  )
                  .toList()
              : const [],
      meta:
          json['meta'] is Map
              ? TenderSubmissionsMeta.fromJson(
                Map<String, dynamic>.from(json['meta'] as Map),
              )
              : null,
    );
  }
}

class TenderSubmission {
  const TenderSubmission({
    required this.id,
    required this.tenderId,
    required this.companyId,
    required this.customerId,
    required this.status,
    required this.stage,
    required this.submissionMode,
    required this.statusHistory,
    required this.createdAt,
    required this.updatedAt,
    required this.tender,
  });

  final String id;
  final String tenderId;
  final String? companyId;
  final String? customerId;
  final String status;
  final String stage;
  final String? submissionMode;
  final List<TenderSubmissionHistory> statusHistory;
  final int? createdAt;
  final int? updatedAt;
  final TenderData? tender;

  bool get isTerminal =>
      status == 'rejected' || status == 'contract' || status == 'not_applied';

  factory TenderSubmission.fromJson(Map<String, dynamic> json) {
    final history = json['status_history'];
    final tenderJson = json['tender'];
    return TenderSubmission(
      id: json['id']?.toString() ?? '',
      tenderId: json['tender_id']?.toString() ?? '',
      companyId: json['company_id']?.toString(),
      customerId: json['customer_id']?.toString(),
      status: json['status']?.toString() ?? 'opportunity',
      stage: json['stage']?.toString() ?? 'opportunity',
      submissionMode: json['submission_mode']?.toString(),
      statusHistory:
          history is List
              ? history
                  .whereType<Map>()
                  .map(
                    (item) => TenderSubmissionHistory.fromJson(
                      Map<String, dynamic>.from(item),
                    ),
                  )
                  .toList()
              : const [],
      createdAt: unixTimestampFromJson(json['created_at']),
      updatedAt: unixTimestampFromJson(json['updated_at']),
      tender:
          tenderJson is Map
              ? TenderData.fromJson(Map<String, dynamic>.from(tenderJson))
              : null,
    );
  }
}

class TenderSubmissionHistory {
  const TenderSubmissionHistory({
    required this.status,
    required this.reason,
    required this.changedBy,
    required this.changedAt,
    required this.description,
  });

  final String status;
  final String? reason;
  final String? changedBy;
  final int? changedAt;
  final String? description;

  factory TenderSubmissionHistory.fromJson(Map<String, dynamic> json) {
    return TenderSubmissionHistory(
      status: json['status']?.toString() ?? '',
      reason: json['reason']?.toString(),
      changedBy: json['changed_by']?.toString(),
      changedAt: unixTimestampFromJson(json['changed_at']),
      description: json['description']?.toString(),
    );
  }
}

class TenderSubmissionsMeta {
  const TenderSubmissionsMeta({
    required this.total,
    required this.limit,
    required this.offset,
    required this.page,
    required this.pages,
    required this.hasMore,
  });

  final int total;
  final int limit;
  final int offset;
  final int page;
  final int pages;
  final bool hasMore;

  factory TenderSubmissionsMeta.fromJson(Map<String, dynamic> json) {
    int number(String key) => (json[key] as num?)?.toInt() ?? 0;
    return TenderSubmissionsMeta(
      total: number('total'),
      limit: number('limit'),
      offset: number('offset'),
      page: number('page'),
      pages: number('pages'),
      hasMore: json['has_more'] == true,
    );
  }
}

class TenderSubmissionStatsResponse {
  const TenderSubmissionStatsResponse({
    required this.success,
    required this.data,
  });

  final bool success;
  final TenderSubmissionStats? data;

  factory TenderSubmissionStatsResponse.fromJson(Map<String, dynamic> json) {
    return TenderSubmissionStatsResponse(
      success: json['success'] == true,
      data:
          json['data'] is Map
              ? TenderSubmissionStats.fromJson(
                Map<String, dynamic>.from(json['data'] as Map),
              )
              : null,
    );
  }
}

class TenderSubmissionStats {
  const TenderSubmissionStats({
    required this.companyId,
    required this.total,
    required this.byStage,
    required this.byStatus,
    required this.lastUpdated,
  });

  final String? companyId;
  final int total;
  final Map<String, int> byStage;
  final Map<String, int> byStatus;
  final int? lastUpdated;

  factory TenderSubmissionStats.fromJson(Map<String, dynamic> json) {
    Map<String, int> counts(value) =>
        value is Map
            ? value.map(
              (key, value) => MapEntry(key.toString(), (value as num).toInt()),
            )
            : const {};
    return TenderSubmissionStats(
      companyId: json['company_id']?.toString(),
      total: (json['total'] as num?)?.toInt() ?? 0,
      byStage: counts(json['by_stage']),
      byStatus: counts(json['by_status']),
      lastUpdated: unixTimestampFromJson(json['last_updated']),
    );
  }
}