import 'dart:convert';

import 'package:dio/dio.dart';
import 'package:immich_mobile/utils/mixins/log_context.mixin.dart';
import 'package:openapi/openapi.dart';

class LoginService with LogContext {
  const LoginService();

  Future<bool> isEndpointAvailable(Uri uri, {Dio? dio}) async {
    String baseUrl = uri.toString();

    if (!baseUrl.endsWith('/api')) {
      baseUrl += '/api';
    }

    final serverAPI =
        Openapi(dio: dio, basePathOverride: baseUrl, interceptors: [])
            .getServerInfoApi();
    try {
      await serverAPI.pingServer(validateStatus: (status) => status == 200);
    } catch (e) {
      log.severe("Exception occured while validating endpoint", e);
      return false;
    }
    return true;
  }

  Future<String> resolveEndpoint(Uri uri, {Dio? dio}) async {
    final d = dio ?? Dio();
    String baseUrl = uri.toString();

    try {
      // Check for well-known endpoint
      final res = await d.get(
        "$baseUrl/.well-known/immich",
        options: Options(
          headers: {"Accept": "application/json"},
          validateStatus: (status) => status == 200,
        ),
      );

      final data = jsonDecode(res.data);
      final endpoint = data['api']['endpoint'].toString();

      // Full URL is relative to base
      return endpoint.startsWith('/') ? "$baseUrl$endpoint" : endpoint;
    } catch (e) {
      log.fine("Could not locate /.well-known/immich at $baseUrl", e);
    }

    // No well-known, return the baseUrl
    return baseUrl;
  }
}