bharat_erp/lib/shared/models/audit_log_model.dart

import 'package:freezed_annotation/freezed_annotation.dart';

// ignore_for_file: invalid_annotation_target

part 'audit_log_model.freezed.dart';
part 'audit_log_model.g.dart';

String _idFromJson(Object? value) => value?.toString() ?? '';

String? _idFromJsonNullable(Object? value) {
  if (value == null) return null;
  final text = value.toString().trim();
  return text.isEmpty ? null : text;
}

DateTime? _dateFromJsonNullable(Object? value) {
  if (value == null) return null;
  if (value is DateTime) return value;
  return DateTime.tryParse(value.toString());
}

Map<String, dynamic>? _mapFromJsonNullable(Object? value) {
  if (value == null) return null;
  if (value is Map<String, dynamic>) return value;
  if (value is Map) {
    return value.map((key, val) => MapEntry(key.toString(), val));
  }
  return null;
}

@freezed
class AuditLogUserModel with _$AuditLogUserModel {
  const factory AuditLogUserModel({
    @JsonKey(fromJson: _idFromJson) required String id,
    @JsonKey(name: 'full_name') String? fullName,
    @JsonKey(name: 'employee_code') String? employeeCode,
    String? email,
  }) = _AuditLogUserModel;

  factory AuditLogUserModel.fromJson(Map<String, dynamic> json) =>
      _$AuditLogUserModelFromJson(json);
}

@freezed
class AuditLogPerformerOption with _$AuditLogPerformerOption {
  const factory AuditLogPerformerOption({
    @JsonKey(fromJson: _idFromJson) required String id,
    @JsonKey(name: 'full_name') String? fullName,
    @JsonKey(name: 'employee_code') String? employeeCode,
  }) = _AuditLogPerformerOption;

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

  const AuditLogPerformerOption._();

  String get label {
    final name = fullName?.trim();
    final code = employeeCode?.trim();
    if (name != null && name.isNotEmpty && code != null && code.isNotEmpty) {
      return '$name ($code)';
    }
    if (name != null && name.isNotEmpty) return name;
    if (code != null && code.isNotEmpty) return code;
    return id;
  }
}

@freezed
class AuditLogFilterOptions with _$AuditLogFilterOptions {
  const factory AuditLogFilterOptions({
    @JsonKey(name: 'table_names') @Default([]) List<String> tableNames,
    @Default([]) List<String> actions,
    @Default([]) List<AuditLogPerformerOption> performers,
  }) = _AuditLogFilterOptions;

  factory AuditLogFilterOptions.fromJson(Map<String, dynamic> json) =>
      _$AuditLogFilterOptionsFromJson(json);
}

@freezed
class AuditLogEntryModel with _$AuditLogEntryModel {
  const factory AuditLogEntryModel({
    @JsonKey(fromJson: _idFromJson) required String id,
    @JsonKey(name: 'table_name') required String tableName,
    @JsonKey(name: 'record_id', fromJson: _idFromJsonNullable) String? recordId,
    required String action,
    @JsonKey(name: 'performed_at', fromJson: _dateFromJsonNullable)
    DateTime? performedAt,
    @JsonKey(name: 'performed_by', fromJson: _idFromJsonNullable)
    String? performedBy,
    @JsonKey(name: 'request_id') String? requestId,
    @JsonKey(name: 'performed_by_user') AuditLogUserModel? performedByUser,
    @JsonKey(name: 'has_old_value') @Default(false) bool hasOldValue,
    @JsonKey(name: 'has_new_value') @Default(false) bool hasNewValue,
  }) = _AuditLogEntryModel;

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

  const AuditLogEntryModel._();

  String get performerLabel {
    final user = performedByUser;
    if (user == null) return performedBy ?? '—';
    final name = user.fullName?.trim();
    final code = user.employeeCode?.trim();
    if (name != null && name.isNotEmpty && code != null && code.isNotEmpty) {
      return '$name ($code)';
    }
    if (name != null && name.isNotEmpty) return name;
    return performedBy ?? '—';
  }
}

@freezed
class AuditLogDetailModel with _$AuditLogDetailModel {
  const factory AuditLogDetailModel({
    @JsonKey(fromJson: _idFromJson) required String id,
    @JsonKey(name: 'table_name') required String tableName,
    @JsonKey(name: 'record_id', fromJson: _idFromJsonNullable) String? recordId,
    required String action,
    @JsonKey(name: 'performed_at', fromJson: _dateFromJsonNullable)
    DateTime? performedAt,
    @JsonKey(name: 'performed_by', fromJson: _idFromJsonNullable)
    String? performedBy,
    @JsonKey(name: 'request_id') String? requestId,
    @JsonKey(name: 'performed_by_user') AuditLogUserModel? performedByUser,
    @JsonKey(name: 'has_old_value') @Default(false) bool hasOldValue,
    @JsonKey(name: 'has_new_value') @Default(false) bool hasNewValue,
    @JsonKey(name: 'old_value', fromJson: _mapFromJsonNullable)
    Map<String, dynamic>? oldValue,
    @JsonKey(name: 'new_value', fromJson: _mapFromJsonNullable)
    Map<String, dynamic>? newValue,
  }) = _AuditLogDetailModel;

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

  const AuditLogDetailModel._();

  String get performerLabel {
    final user = performedByUser;
    if (user == null) return performedBy ?? '—';
    final name = user.fullName?.trim();
    final code = user.employeeCode?.trim();
    if (name != null && name.isNotEmpty && code != null && code.isNotEmpty) {
      return '$name ($code)';
    }
    if (name != null && name.isNotEmpty) return name;
    return performedBy ?? '—';
  }
}

@freezed
class AuditLogListQuery with _$AuditLogListQuery {
  const factory AuditLogListQuery({
    @Default(1) int page,
    @Default(20) int limit,
    @JsonKey(name: 'table_name') String? tableName,
    @JsonKey(name: 'record_id') int? recordId,
    String? action,
    @JsonKey(name: 'performed_by') int? performedBy,
    @JsonKey(name: 'request_id') String? requestId,
    @JsonKey(name: 'date_from') DateTime? dateFrom,
    @JsonKey(name: 'date_to') DateTime? dateTo,
    String? search,
  }) = _AuditLogListQuery;

  const AuditLogListQuery._();

  bool get hasActiveFilter =>
      (tableName?.isNotEmpty ?? false) ||
      recordId != null ||
      (action?.isNotEmpty ?? false) ||
      performedBy != null ||
      (requestId?.isNotEmpty ?? false) ||
      dateFrom != null ||
      dateTo != null ||
      (search?.isNotEmpty ?? false);
}

@freezed
class AuditLogListResult with _$AuditLogListResult {
  const factory AuditLogListResult({
    @Default([]) List<AuditLogEntryModel> items,
    @Default(1) int page,
    @Default(20) int limit,
    @Default(0) int total,
    @Default(1) int totalPages,
    @Default(false) bool filtersRequired,
  }) = _AuditLogListResult;
}