98 lines
2.7 KiB
Dart
98 lines
2.7 KiB
Dart
import "dart:convert";
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import "dart:developer";
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import 'package:dio/dio.dart';
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import 'package:anyway/constants.dart';
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import "package:anyway/structs/landmark.dart";
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import "package:anyway/structs/trip.dart";
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import "package:anyway/structs/preferences.dart";
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Dio dio = Dio(
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BaseOptions(
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baseUrl: API_URL_BASE,
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connectTimeout: const Duration(seconds: 5),
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receiveTimeout: const Duration(seconds: 120),
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// also accept 500 errors, since we cannot rule out that the server is at fault. We still want to gracefully handle these errors
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validateStatus: (status) => status! <= 500,
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receiveDataWhenStatusError: true,
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// api is notoriously slow
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// headers: {
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// HttpHeaders.userAgentHeader: 'dio',
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// 'api': '1.0.0',
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// },
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contentType: Headers.jsonContentType,
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responseType: ResponseType.json,
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),
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);
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fetchTrip(
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Trip trip,
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UserPreferences preferences,
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) async {
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Map<String, dynamic> data = {
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"preferences": preferences.toJson(),
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"start": trip.landmarks!.first.location,
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};
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String dataString = jsonEncode(data);
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log(dataString);
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final response = await dio.post(
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"/trip/new",
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data: data
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);
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// handle errors
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if (response.statusCode != 200) {
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trip.updateUUID("error");
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String errorDetail;
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if (response.data.runtimeType == String) {
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errorDetail = response.data;
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} else {
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errorDetail = response.data["detail"] ?? "Unknown error";
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}
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trip.updateError(errorDetail);
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log(errorDetail);
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// Actualy no need to throw an exception, we can just log the error and let the user retry
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// throw Exception(errorDetail);
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} else {
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Map<String, dynamic> json = response.data;
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// only fill in the trip "meta" data for now
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trip.loadFromJson(json);
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// now fill the trip with landmarks
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// we are going to recreate ALL the landmarks from the information given by the api
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trip.landmarks.remove(trip.landmarks.first);
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String? nextUUID = json["first_landmark_uuid"];
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while (nextUUID != null) {
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var (landmark, newUUID) = await fetchLandmark(nextUUID);
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trip.addLandmark(landmark);
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nextUUID = newUUID;
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}
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log(response.data.toString());
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}
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}
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Future<(Landmark, String?)> fetchLandmark(String uuid) async {
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final response = await dio.get(
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"/landmark/$uuid"
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);
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// handle errors
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if (response.statusCode != 200) {
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throw Exception('Failed to load landmark');
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}
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if (response.data["detail"] != null) {
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throw Exception(response.data["detail"]);
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}
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log(response.data.toString());
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Map<String, dynamic> json = response.data;
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String? nextUUID = json["next_uuid"];
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return (Landmark.fromJson(json), nextUUID);
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}
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