1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
using Enmarcha.Sources.OpenTripPlannerGql;
using Enmarcha.Sources.OpenTripPlannerGql.Queries;
using Enmarcha.Backend.Configuration;
using Enmarcha.Backend.Helpers;
using Enmarcha.Backend.Services;
using Enmarcha.Backend.Types.Transit;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Options;
namespace Enmarcha.Backend.Controllers;
[ApiController]
[Route("api/transit")]
public class TransitController : ControllerBase
{
private readonly ILogger<TransitController> _logger;
private readonly OtpService _otpService;
private readonly AppConfiguration _config;
private readonly HttpClient _httpClient;
private readonly IMemoryCache _cache;
public TransitController(
ILogger<TransitController> logger,
OtpService otpService,
IOptions<AppConfiguration> config,
HttpClient httpClient,
IMemoryCache cache
)
{
_logger = logger;
_otpService = otpService;
_config = config.Value;
_httpClient = httpClient;
_cache = cache;
}
[HttpGet("routes")]
public async Task<ActionResult<List<RouteDto>>> GetRoutes([FromQuery] string[] feeds)
{
using var activity = Telemetry.Source.StartActivity("GetRoutes");
if (feeds.Length == 0)
{
feeds = ["tussa", "vitrasa", "tranvias", "feve"];
}
activity?.SetTag("feeds", string.Join(",", feeds));
var serviceDate = DateTime.Now.ToString("yyyy-MM-dd");
var cacheKey = $"routes_{string.Join("_", feeds)}_{serviceDate}";
var cacheHit = _cache.TryGetValue(cacheKey, out List<RouteDto>? cachedRoutes);
activity?.SetTag("cache.hit", cacheHit);
if (cacheHit && cachedRoutes != null)
{
return Ok(cachedRoutes);
}
try
{
var query = RoutesListContent.Query(new RoutesListContent.Args(feeds, serviceDate));
var response = await SendOtpQueryAsync<RoutesListResponse>(query);
if (response?.Data == null)
{
return StatusCode(500, "Failed to fetch routes from OTP.");
}
var routes = response.Data.Routes
.Select(_otpService.MapRoute)
.OrderBy(r => r.ShortName, Comparer<string?>.Create(SortingHelper.SortRouteShortNames))
.ToList();
_cache.Set(cacheKey, routes, TimeSpan.FromHours(1));
return Ok(routes);
}
catch (Exception e)
{
activity?.SetStatus(System.Diagnostics.ActivityStatusCode.Error, e.Message);
_logger.LogError(e, "Error fetching routes");
return StatusCode(500, "An error occurred while fetching routes.");
}
}
[HttpGet("routes/{id}")]
public async Task<ActionResult<RouteDetailsDto>> GetRouteDetails(string id)
{
using var activity = Telemetry.Source.StartActivity("GetRouteDetails");
activity?.SetTag("route.id", id);
var serviceDate = DateTime.Now.ToString("yyyy-MM-dd");
var cacheKey = $"route_details_{id}_{serviceDate}";
var cacheHit = _cache.TryGetValue(cacheKey, out RouteDetailsDto? cachedDetails);
activity?.SetTag("cache.hit", cacheHit);
if (cacheHit && cachedDetails != null)
{
return Ok(cachedDetails);
}
try
{
var query = RouteDetailsContent.Query(new RouteDetailsContent.Args(id, serviceDate));
var response = await SendOtpQueryAsync<RouteDetailsResponse>(query);
if (response?.Data?.Route == null)
{
return NotFound();
}
var details = _otpService.MapRouteDetails(response.Data.Route);
_cache.Set(cacheKey, details, TimeSpan.FromHours(1));
return Ok(details);
}
catch (Exception e)
{
activity?.SetStatus(System.Diagnostics.ActivityStatusCode.Error, e.Message); _logger.LogError(e, "Error fetching route details for {Id}", id);
return StatusCode(500, "An error occurred while fetching route details.");
}
}
private async Task<GraphClientResponse<T>?> SendOtpQueryAsync<T>(string query) where T : AbstractGraphResponse
{
var request = new HttpRequestMessage(HttpMethod.Post, $"{_config.OpenTripPlannerBaseUrl}/gtfs/v1");
request.Content = JsonContent.Create(new GraphClientRequest { Query = query });
var response = await _httpClient.SendAsync(request);
if (!response.IsSuccessStatusCode)
{
_logger.LogError("OTP query failed with status {StatusCode}", response.StatusCode);
return null;
}
return await response.Content.ReadFromJsonAsync<GraphClientResponse<T>>();
}
}
|
