Добален поиск по трекам

PlaylistShared.Api/Controllers/YandexSearchController.cs

@@ -0,0 +1,74 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using PlaylistShared.Api.Entities;
+using PlaylistShared.Api.Extensions;
+using PlaylistShared.Api.Services;
+using PlaylistShared.Shared;
+using PlaylistShared.Shared.DTO;
+
+namespace PlaylistShared.Api.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+[AllowAnonymous]
+public class YandexSearchController : ControllerBase
+{
+    private readonly UserManager<ApplicationUser> _userManager;
+    private readonly YandexMusicService _yandexService;
+    private readonly SharedPlaylistService _sharedPlaylistService;
+
+    public YandexSearchController(UserManager<ApplicationUser> userManager, YandexMusicService yandexService, SharedPlaylistService sharedPlaylistService)
+    {
+        _userManager = userManager;
+        _yandexService = yandexService;
+        _sharedPlaylistService = sharedPlaylistService;
+    }
+
+    [HttpGet("tracks")]
+    public async Task<ActionResult<ApiResponse<List<YandexTrackSearchResult>>>> SearchTracks(
+        [FromQuery] string query,
+        [FromQuery] int limit = 20,
+        [FromQuery] string? shared_id = null)
+    {
+        if (string.IsNullOrWhiteSpace(query))
+            return BadRequest(ApiResponse<List<YandexTrackSearchResult>>.Fail(new ErrorResponse
+            {
+                StatusCode = 400,
+                Message = "Поисковый запрос не может быть пустым."
+            }));
+
+        ApplicationUser? user = null;
+        var userId = User.GetUserIdOrNull();
+        if (userId.HasValue)
+            user = await _userManager.FindByIdAsync(userId.Value.ToString());
+
+        // Если нет пользователя или у него нет токена, пробуем через shared_id
+        if (user == null || string.IsNullOrEmpty(_yandexService.DecryptToken(user.YandexAccessToken)))
+        {
+            if (string.IsNullOrEmpty(shared_id))
+                return Unauthorized("Не установлен яндекс токен.");
+
+            var playlist = await _sharedPlaylistService.GetEntityByTokenAsync(shared_id);
+            if (playlist == null) return NotFound("Не найден плейлист.");
+
+            if (!await _sharedPlaylistService.CanAddTrackAsync(playlist, userId))
+                return StatusCode(403, "Нет доступа для добавления трека.");
+
+            var owner = await _userManager.FindByIdAsync(playlist.CreatorUserId.ToString());
+            if (owner == null) return StatusCode(500, "Не удалось найти владельца плейлиста.");
+            user = owner;
+        }
+
+        var decryptedToken = _yandexService.DecryptToken(user.YandexAccessToken);
+        if (string.IsNullOrEmpty(decryptedToken))
+            return BadRequest(ApiResponse<List<YandexTrackSearchResult>>.Fail(new ErrorResponse
+            {
+                StatusCode = 400,
+                Message = "Токен Яндекс.Музыки не установлен или недействителен."
+            }));
+
+        var results = await _yandexService.SearchTracksAsync(user, query, limit);
+        return Ok(ApiResponse<List<YandexTrackSearchResult>>.Ok(results));
+    }
+}

PlaylistShared.Api/Services/YandexMusicService.cs

@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.DataProtection;
 using PlaylistShared.Api.Entities;
+using PlaylistShared.Shared.DTO;
 using YandexMusic;
 using YandexMusic.API.Extensions.API;
 using YandexMusic.API.Models.Playlist;
@@ -94,4 +95,22 @@ public class YandexMusicService
             return null;
         }
     }
+
+    public async Task<List<YandexTrackSearchResult>> SearchTracksAsync(ApplicationUser user, string query, int limit = 20)
+    {
+        var client = await CreateClientAsync(user);
+        if (client == null) return new List<YandexTrackSearchResult>();
+
+        var searchResult = await client.SearchAsync(query, YandexMusic.API.Models.Common.YSearchType.Track, page: 0, pageSize: limit);
+        if (searchResult?.Tracks?.Results == null) return new List<YandexTrackSearchResult>();
+
+        return searchResult.Tracks.Results.Select(t => new YandexTrackSearchResult
+        {
+            TrackId = t.Id,
+            Title = t.Title,
+            Artists = t.Artists?.Select(a => a.Name).ToList() ?? new List<string>(),
+            CoverUri = t.CoverUri ?? string.Empty,
+            DurationMs = t.DurationMs,
+        }).ToList();
+    }
 }