import 'package:dio/dio.dart';
import '../core/api/api_client.dart';
import '../core/device/device_id.dart';
import '../core/exceptions.dart';
import '../models/license.dart';

class LicenseRepository {
  final ApiClient _client;
  const LicenseRepository(this._client);

  Future<LicenseInfo?> getInfo() async {
    try {
      final resp = await _client.get('/license/info');
      final data = resp.data['data'];
      if (data == null) return null;
      return LicenseInfo.fromJson(data as Map<String, dynamic>);
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '获取授权信息失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// Activate a license key for this device.
  Future<void> activate(String licenseKey, {String? deviceName}) async {
    final deviceId = await DeviceId.get();
    try {
      await _client.post('/license/activate', data: {
        'license_key': licenseKey,
        'device_id': deviceId,
        'device_name': deviceName ?? DeviceId.platformName,
        'platform': DeviceId.platformName,
      });
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '激活失败',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// Deactivate (unbind) this device from its license.
  Future<void> deactivate() async {
    final deviceId = await DeviceId.get();
    try {
      await _client.post('/license/deactivate', data: {'device_id': deviceId});
    } on DioException catch (e) {
      throw AppException(
        e.response?.data?['error'] as String? ?? '解绑失败',
        statusCode: e.response?.statusCode,
      );
    }
  }
}