diff options
Diffstat (limited to 'src/Costasdev.Busurbano.Backend/Controllers/StopsTile.cs')
| -rw-r--r-- | src/Costasdev.Busurbano.Backend/Controllers/StopsTile.cs | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/src/Costasdev.Busurbano.Backend/Controllers/StopsTile.cs b/src/Costasdev.Busurbano.Backend/Controllers/StopsTile.cs deleted file mode 100644 index 56f836e..0000000 --- a/src/Costasdev.Busurbano.Backend/Controllers/StopsTile.cs +++ /dev/null @@ -1,198 +0,0 @@ -using Costasdev.Busurbano.Backend.GraphClient; -using Costasdev.Busurbano.Backend.GraphClient.App; -using NetTopologySuite.IO.VectorTiles; -using NetTopologySuite.IO.VectorTiles.Mapbox; - -using Microsoft.AspNetCore.Mvc; - -using Microsoft.Extensions.Caching.Memory; -using NetTopologySuite.Features; -using System.Text.Json; -using Costasdev.Busurbano.Backend.Helpers; - -[ApiController] -[Route("api/tiles")] -public class TileController : ControllerBase -{ - private readonly ILogger<TileController> _logger; - private readonly IMemoryCache _cache; - private readonly HttpClient _httpClient; - - public TileController( - ILogger<TileController> logger, - IMemoryCache cache, - HttpClient httpClient - ) - { - _logger = logger; - _cache = cache; - _httpClient = httpClient; - } - - /* - vitrasa:20223: # Castrelos (Pavillón) - Final U1 - hide: true -vitrasa:20146: # García Barbón 7 - final líneas A y 18A - hide: true -vitrasa:20220: # (Samil) COIA-SAMIL - Final L15A - hide: true -vitrasa:20001: # (Samil) Samil por Beiramar - Final L15B - hide: true -vitrasa:20002: # (Samil) Samil por Torrecedeira - Final L15C - hide: true -vitrasa:20144: # (Samil) Samil por Coia - Final C3D+C3i - hide: true -vitrasa:20145: # (Samil) Samil por Bouzas - Final C3D+C3i - hide: true - */ - private static readonly string[] HiddenStops = - [ - "vitrasa:20223", - "vitrasa:20146", - "vitrasa:20220", - "vitrasa:20001", - "vitrasa:20002", - "vitrasa:20144", - "vitrasa:20145" - ]; - - [HttpGet("stops/{z}/{x}/{y}")] - public async Task<IActionResult> GetTrafficTile(int z, int x, int y) - { - var cacheHit = _cache.TryGetValue($"stops-tile-{z}-{x}-{y}", out byte[]? cachedTile); - if (cacheHit && cachedTile != null) - { - Response.Headers.Append("X-Cache-Hit", "true"); - return File(cachedTile, "application/x-protobuf"); - } - - // Calculate bounding box in EPSG:4326 - double n = Math.Pow(2, z); - double lonMin = x / n * 360.0 - 180.0; - double lonMax = (x + 1) / n * 360.0 - 180.0; - - double latMaxRad = Math.Atan(Math.Sinh(Math.PI * (1 - 2 * y / n))); - double latMax = latMaxRad * 180.0 / Math.PI; - - double latMinRad = Math.Atan(Math.Sinh(Math.PI * (1 - 2 * (y + 1) / n))); - double latMin = latMinRad * 180.0 / Math.PI; - - var requestContent = StopTileRequestContent.Query(new StopTileRequestContent.Bbox(lonMin, latMin, lonMax, latMax)); - var request = new HttpRequestMessage(HttpMethod.Post, "http://100.67.54.115:3957/otp/gtfs/v1"); - request.Content = JsonContent.Create(new GraphClientRequest - { - Query = requestContent - }); - - var response = await _httpClient.SendAsync(request); - var responseBody = await response.Content.ReadFromJsonAsync<GraphClientResponse<StopTileResponse>>(); - - if (responseBody == null || !responseBody.IsSuccess) - { - _logger.LogError("Error fetching stop data: {StatusCode}", response.StatusCode); - _logger.LogError("Sent request: {RequestContent}", await request.Content.ReadAsStringAsync()); - _logger.LogError("Response body: {ResponseBody}", await response.Content.ReadAsStringAsync()); - return StatusCode(500, "Error fetching stop data"); - } - - var tileDef = new NetTopologySuite.IO.VectorTiles.Tiles.Tile(x, y, z); - VectorTile vt = new() { TileId = tileDef.Id }; - var lyr = new Layer { Name = "stops" }; - - responseBody.Data?.StopsByBbox?.ForEach(stop => - { - var idParts = stop.GtfsId.Split(':', 2); - string codeWithinFeed = stop.Code ?? string.Empty; - - // TODO: Refactor this, maybe do it client-side or smth - if (idParts[0] == "vitrasa") - { - var digits = new string(codeWithinFeed.Where(char.IsDigit).ToArray()); - if (int.TryParse(digits, out int code)) - { - codeWithinFeed = code.ToString(); - } - } - - if (HiddenStops.Contains($"{idParts[0]}:{codeWithinFeed}")) - { - return; - } - - var fallbackColours = GetFallbackColourForFeed(idParts[0]); - - Feature feature = new() - { - Geometry = new NetTopologySuite.Geometries.Point(stop.Lon, stop.Lat), - Attributes = new AttributesTable - { - // The ID will be used to request the arrivals - { "id", stop.GtfsId }, - // The feed is the first part of the GTFS ID, corresponding to the feed where the info comes from, used for icons probably - { "feed", idParts[0] }, - // The public identifier, usually feed:code or feed:id, recognisable by users and in other systems - { "code", $"{idParts[0]}:{codeWithinFeed}" }, - // The name of the stop - { "name", stop.Name }, - // Routes - { "routes", JsonSerializer.Serialize(stop.Routes?.OrderBy( - r => r.ShortName, - Comparer<string?>.Create(SortingHelper.SortRouteShortNames) - ).Select(r => { - var colour = r.Color ?? fallbackColours.Color; - string textColour; - - if (r.Color is null) // None is present, use fallback - { - textColour = fallbackColours.TextColor; - } - else if (r.TextColor is null || r.TextColor.EndsWith("000000")) - { - // Text colour not provided, or default-black; check the better contrasting - textColour = ContrastHelper.GetBestTextColour(colour); - } - else - { - // Use provided text colour - textColour = r.TextColor; - } - - return new { - shortName = r.ShortName, - colour, - textColour - }; - })) } - } - }; - - lyr.Features.Add(feature); - }); - - vt.Layers.Add(lyr); - - using var ms = new MemoryStream(); - vt.Write(ms, minLinealExtent: 1, minPolygonalExtent: 2); - - _cache.Set($"stops-tile-{z}-{x}-{y}", ms.ToArray(), TimeSpan.FromMinutes(15)); - Response.Headers.Append("X-Cache-Hit", "false"); - - return File(ms.ToArray(), "application/x-protobuf"); - } - - private static (string Color, string TextColor) GetFallbackColourForFeed(string feed) - { - return feed switch - { - "vitrasa" => ("#95D516", "#000000"), - "santiago" => ("#508096", "#FFFFFF"), - "coruna" => ("#E61C29", "#FFFFFF"), - "xunta" => ("#007BC4", "#FFFFFF"), - "renfe" => ("#870164", "#FFFFFF"), - "feve" => ("#EE3D32", "#FFFFFF"), - _ => ("#000000", "#FFFFFF"), - - }; - } - -} |