import 'dart:convert';

import '../utils/app_time.dart';

class ItServiceRequestActivityLog {
  ItServiceRequestActivityLog({
    required this.id,
    required this.requestId,
    this.actorId,
    required this.actionType,
    this.meta,
    required this.createdAt,
  });

  final String id;
  final String requestId;
  final String? actorId;
  final String actionType;
  final Map<String, dynamic>? meta;
  final DateTime createdAt;

  factory ItServiceRequestActivityLog.fromMap(Map<String, dynamic> map) {
    final rawId = map['id'];
    final rawRequestId = map['request_id'];
    String id = rawId == null ? '' : rawId.toString();
    String requestId = rawRequestId == null ? '' : rawRequestId.toString();
    final actorId = map['actor_id']?.toString();
    final actionType = (map['action_type'] as String?) ?? 'unknown';

    Map<String, dynamic>? meta;
    final rawMeta = map['meta'];
    if (rawMeta is Map<String, dynamic>) {
      meta = rawMeta;
    } else if (rawMeta is Map) {
      try {
        meta = rawMeta.map((k, v) => MapEntry(k.toString(), v));
      } catch (_) {
        meta = null;
      }
    } else if (rawMeta is String && rawMeta.isNotEmpty) {
      try {
        final decoded = jsonDecode(rawMeta);
        if (decoded is Map<String, dynamic>) {
          meta = decoded;
        } else if (decoded is Map) {
          meta = decoded.map((k, v) => MapEntry(k.toString(), v));
        }
      } catch (_) {
        meta = null;
      }
    }

    DateTime createdAt;
    final rawCreated = map['created_at'];
    if (rawCreated is String) {
      try {
        createdAt = AppTime.parse(rawCreated);
      } catch (_) {
        createdAt = AppTime.now();
      }
    } else {
      createdAt = AppTime.now();
    }

    return ItServiceRequestActivityLog(
      id: id,
      requestId: requestId,
      actorId: actorId,
      actionType: actionType,
      meta: meta,
      createdAt: createdAt,
    );
  }
}