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using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Costasdev.VigoTransitApi;
using System.Text.Json;
namespace Costasdev.Busurbano.Backend;
[ApiController]
[Route("api/vigo")]
public class VigoController : ControllerBase
{
private readonly VigoTransitApiClient _api;
private readonly IMemoryCache _cache;
private readonly HttpClient _httpClient;
public VigoController(HttpClient http, IMemoryCache cache)
{
_api = new VigoTransitApiClient(http);
_cache = cache;
_httpClient = http;
}
[HttpGet("GetStopEstimates")]
public async Task<IActionResult> Run()
{
var argumentAvailable = Request.Query.TryGetValue("id", out var requestedStopIdString);
if (!argumentAvailable)
{
return BadRequest("Please provide a stop id as a query parameter with the name 'id'.");
}
var argumentNumber = int.TryParse(requestedStopIdString, out var requestedStopId);
if (!argumentNumber)
{
return BadRequest("The provided stop id is not a valid number.");
}
try
{
var response = await _api.GetStopEstimates(requestedStopId);
// Return only the estimates array, not the stop metadata
return new OkObjectResult(response.Estimates);
}
catch (InvalidOperationException)
{
return BadRequest("Stop not found");
}
}
[HttpGet("GetStopTimetable")]
public async Task<IActionResult> GetStopTimetable()
{
// Get date parameter (default to today if not provided)
var dateString = Request.Query.TryGetValue("date", out var requestedDate)
? requestedDate.ToString()
: DateTime.Today.ToString("yyyy-MM-dd");
// Validate date format
if (!DateTime.TryParseExact(dateString, "yyyy-MM-dd", null, System.Globalization.DateTimeStyles.None, out _))
{
return BadRequest("Invalid date format. Please use yyyy-MM-dd format.");
}
// Get stopId parameter
if (!Request.Query.TryGetValue("stopId", out var requestedStopIdString))
{
return BadRequest("Please provide a stop id as a query parameter with the name 'stopId'.");
}
if (!int.TryParse(requestedStopIdString, out var requestedStopId))
{
return BadRequest("The provided stop id is not a valid number.");
}
// Create cache key
var cacheKey = $"timetable_{dateString}_{requestedStopId}";
// Try to get from cache first
if (_cache.TryGetValue(cacheKey, out var cachedData))
{
return new OkObjectResult(cachedData);
}
try
{
// Fetch data from external API
var url = $"https://costas.dev/static-storage/vitrasa_svc/stops/{dateString}/{requestedStopId}.json";
var response = await _httpClient.GetAsync(url);
if (!response.IsSuccessStatusCode)
{
if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
{
return NotFound($"Timetable data not found for stop {requestedStopId} on {dateString}");
}
return StatusCode((int)response.StatusCode, "Error fetching timetable data");
}
var jsonContent = await response.Content.ReadAsStringAsync();
var timetableData = JsonSerializer.Deserialize<JsonElement>(jsonContent);
// Cache the data for 12 hours
var cacheOptions = new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = TimeSpan.FromHours(12),
SlidingExpiration = TimeSpan.FromHours(6), // Refresh cache if accessed within 6 hours of expiry
Priority = CacheItemPriority.Normal
};
_cache.Set(cacheKey, timetableData, cacheOptions);
return new OkObjectResult(timetableData);
}
catch (HttpRequestException ex)
{
return StatusCode(500, $"Error fetching timetable data: {ex.Message}");
}
catch (JsonException ex)
{
return StatusCode(500, $"Error parsing timetable data: {ex.Message}");
}
catch (Exception ex)
{
return StatusCode(500, $"Unexpected error: {ex.Message}");
}
}
}
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