feat: canais e listagem de canais com mongodb

Postall.Domain/Dtos/ChannelResponse.cs

@@ -11,6 +11,7 @@ namespace Postall.Domain.Dtos
     {
         public string Id { get; set; }
         public string UserId { get; set; }
+        public string ChannelId { get; set; }
         public string YoutubeId { get; set; }
         public string Title { get; set; }
         public string Description { get; set; }
@@ -23,15 +24,16 @@ namespace Postall.Domain.Dtos
         public bool IsSelected { get; set; }
 
         // URL do canal no YouTube
-        public string ChannelUrl => $"https://www.youtube.com/channel/{Id}";
+        public string ChannelUrl => $"https://www.youtube.com/channel/{this.ChannelId}";
 
         public ChannelData ToChannelData()
         {
             return new ChannelData
             {
-                Id = Id,
+                Id = Guid.NewGuid().ToString("N"),
-                UserId = UserId,
+                UserId = this.UserId,
-                YoutubeId = YoutubeId,
+                ChannelId = this.ChannelId,
+                YoutubeId = this.YoutubeId,
                 Title = Title,
                 Description = Description,
                 ThumbnailUrl = ThumbnailUrl,

Postall.Domain/Entities/ChannelData.cs

@@ -49,13 +49,14 @@ namespace Postall.Domain.Entities
         public bool IsSelected { get; set; }
 
         [BsonIgnore]
-        public string ChannelUrl => $"https://www.youtube.com/channel/{YoutubeId}";
+        public string ChannelUrl => $"https://www.youtube.com/channel/{ChannelId}";
 
         public ChannelResponse ToChannelResponse() => new ChannelResponse
         {
             Id = Id,
             UserId = UserId,
             YoutubeId = YoutubeId,
+            ChannelId = ChannelId,
             Title = Title,
             Description = Description,
             ThumbnailUrl = ThumbnailUrl,

Postall.Domain/Services/ChannelVideoService.cs

@@ -114,8 +114,11 @@ namespace Postall.Infra.Services
                     return false;
 
                 var channelDetails = await GetChannelDetailsAsync(channelId);
-
+                var data = channelDetails.Value.ToChannelData();
-                await _channelRepository.AddAsync(channelDetails.Value.ToChannelData());
+                data.ChannelId = channelId;
+                data.UserId = userId;
+                data.YoutubeId = channelId;
+                await _channelRepository.AddAsync(data);
 
                 return true;
             }

Postall.Infra.MongoDB/Repositories/ChannelRepository.cs

@@ -25,7 +25,7 @@ namespace Postall.Infra.MongoDB.Repositories
             var database = client.GetDatabase(mongoDbSettings.Value.DatabaseName);
             _channelsCollection = database.GetCollection<ChannelData>(mongoDbSettings.Value.ChannelsCollectionName);
 
-            var indexKeysDefinition = Builders<ChannelData>.IndexKeys.Ascending(c => c.YoutubeId);
+            var indexKeysDefinition = Builders<ChannelData>.IndexKeys.Ascending(c => c.ChannelId).Ascending(c => c.UserId);
             _channelsCollection.Indexes.CreateOne(new CreateIndexModel<ChannelData>(indexKeysDefinition, new CreateIndexOptions { Unique = true }));
 
             var textIndexDefinition = Builders<ChannelData>.IndexKeys
@@ -79,18 +79,30 @@ namespace Postall.Infra.MongoDB.Repositories
         /// </summary>
         public async Task<ChannelData> AddAsync(ChannelData ChannelData)
         {
-            // Verifica se o canal já existe pelo ID do YouTube
+            var existingChannel = await GetByUserIdAndChannelIdAsync(ChannelData.UserId, ChannelData.ChannelId);
-            var existingChannel = await GetByYoutubeIdAsync(ChannelData.YoutubeId);
             if (existingChannel != null)
                 return null;
 
-            // Gera novo ID para o MongoDB se não for fornecido
             if (string.IsNullOrEmpty(ChannelData.Id) || !ObjectId.TryParse(ChannelData.Id, out _))
             {
                 ChannelData.Id = ObjectId.GenerateNewId().ToString();
             }
 
-            await _channelsCollection.InsertOneAsync(ChannelData);
+            try 
+            { 
+                await _channelsCollection.InsertOneAsync(ChannelData); 
+            }
+            catch (MongoWriteException ex)
+            {
+                if (ex.WriteError.Category == ServerErrorCategory.DuplicateKey)
+                {
+                    return await GetByYoutubeIdAsync(ChannelData.YoutubeId);
+                }
+                else
+                {
+                    throw;
+                }
+            }
             return ChannelData;
         }
 

Postall/Controllers/ChannelsController.cs

@@ -18,7 +18,7 @@ namespace Postall.Controllers
         public async Task<IActionResult> Index()
         {
             var userChannels = await _channelService.GetUserChannelsAsync();
-            return View(userChannels);
+            return View(userChannels.IsSuccess ? userChannels.Value : new List<string>());
         }
 
         [HttpGet]
@@ -87,7 +87,10 @@ namespace Postall.Controllers
             try
             {
                 var results = await _channelService.SearchChannelsAsync(query);
-                return Json(new { success = true, data = results });
+                if (results.IsSuccess)
+                    return Json(new { success = true, data = results.Value });
+
+                return Json(new { success = false, message = "Erro ao buscar canais" });
             }
             catch (Exception ex)
             {