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rzuastiandClaude Opus 4.8
c9e79e028f
Break the 372-line frontend API client into focused files under lib/utils/api/: error mapping (api_error.dart), Dio setup behind a buildDio factory (dio_config.dart), and device/scanner/notification endpoints as extensions in part files. Collapse the five near-identical scanner-status methods via a generic _getModel helper and de-duplicate the pagination logic via a shared _paginate helper. The BackendAPI singleton and dioErrorToUserMessage remain importable from oott_api.dart unchanged, so no call sites are affected. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
90 lines
2.5 KiB
Dart
90 lines
2.5 KiB
Dart
import 'dart:io';
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import 'package:dio/dio.dart';
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import 'package:dio_smart_retry/dio_smart_retry.dart';
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import 'package:flutter/foundation.dart';
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import '../backend_reachability.dart';
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const _connectTimeout = Duration(seconds: 5);
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const _receiveTimeout = Duration(seconds: 15);
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const _sendTimeout = Duration(seconds: 15);
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const _retryableStatuses = {408, 429, 500, 502, 503, 504};
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/// Builds a [Dio] client configured for the OOTT backend: base options,
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/// authentication header, retry/reachability interceptors and, in debug
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/// builds, request logging.
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Dio buildDio({
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required String baseUrl,
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required String apiKey,
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bool withRetry = true,
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bool withReachability = true,
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}) {
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final headers = <String, String>{
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HttpHeaders.contentTypeHeader: 'application/json',
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};
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if (apiKey.isNotEmpty) {
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headers[HttpHeaders.authorizationHeader] = 'Bearer $apiKey';
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}
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final dio = Dio(
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BaseOptions(
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baseUrl: baseUrl,
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connectTimeout: _connectTimeout,
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receiveTimeout: _receiveTimeout,
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sendTimeout: _sendTimeout,
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headers: headers,
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),
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);
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if (withRetry) {
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dio.interceptors.add(_buildRetryInterceptor(dio));
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}
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if (withReachability) {
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dio.interceptors.add(_buildReachabilityInterceptor());
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}
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if (kDebugMode) {
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dio.interceptors.add(_buildLogInterceptor());
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}
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return dio;
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}
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RetryInterceptor _buildRetryInterceptor(Dio dio) => RetryInterceptor(
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dio: dio,
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retries: 2,
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retryDelays: const [Duration(seconds: 1), Duration(seconds: 3)],
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logPrint: kDebugMode ? (msg) => debugPrint(msg.toString()) : null,
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retryEvaluator: (error, attempt) {
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if (error.requestOptions.method != 'GET') return false;
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if (error.type == DioExceptionType.cancel) return false;
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if (error.error is FormatException) return false;
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if (error.type == DioExceptionType.badResponse) {
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final status = error.response?.statusCode;
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return status != null && _retryableStatuses.contains(status);
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}
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return true;
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},
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);
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InterceptorsWrapper _buildReachabilityInterceptor() => InterceptorsWrapper(
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onResponse: (response, handler) {
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BackendReachability.instance.recordSuccess();
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handler.next(response);
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},
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onError: (error, handler) {
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BackendReachability.instance.recordFailure(error);
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handler.next(error);
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},
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);
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LogInterceptor _buildLogInterceptor() => LogInterceptor(
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request: true,
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requestHeader: false,
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requestBody: false,
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responseHeader: false,
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responseBody: false,
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error: true,
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logPrint: (obj) => debugPrint(obj.toString()),
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);
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