feat: 完成图片异步生成

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiGateWayManager.cs

@@ -966,9 +966,14 @@ public class AiGateWayManager : DomainService
         //解析json，获取base64字符串
         var imageBase64 = GeminiGenerateContentAcquirer.GetImageBase64(data);
 
-        //base64字符串存储，返回绝对路径，用于最后存储
-        var storeUrl = Base64ToPng(imageBase64, "存储的路径？这个放什么");
-
+        //远程调用上传接口，将base64转换为URL
+        var httpClient = LazyServiceProvider.LazyGetRequiredService<IHttpClientFactory>().CreateClient();
+        var uploadUrl = $"https://ccnetcore.com/prod-api/ai-hub/ai-image/upload-base64";
+        var content = new StringContent(JsonSerializer.Serialize(imageBase64), Encoding.UTF8, "application/json");
+        var uploadResponse = await httpClient.PostAsync(uploadUrl, content, cancellationToken);
+        uploadResponse.EnsureSuccessStatusCode();
+        var storeUrl = await uploadResponse.Content.ReadAsStringAsync(cancellationToken);
+        storeUrl = storeUrl.Trim('"'); // 移除JSON字符串的引号
 
         var tokenUsage = new ThorUsageResponse
         {
@@ -994,42 +999,12 @@ public class AiGateWayManager : DomainService
             await PremiumPackageManager.TryConsumeTokensAsync(userId, totalTokens);
         }
 
-        //设置存储url
+        //设置存储base64和url
+        imageStoreTask.StoreBase64 = imageBase64;
         imageStoreTask.SetSuccess(storeUrl);
         await _imageStoreTaskRepository.UpdateAsync(imageStoreTask);
     }
 
-    /// <summary>
-    /// 将 Base64 字符串转换为 PNG 图片并保存
-    /// </summary>
-    /// <param name="base64String">Base64 字符串（可以包含或不包含 data:image/png;base64, 前缀）</param>
-    /// <param name="outputPath">输出文件路径</param>
-    private string Base64ToPng(string base64String, string outputPath)
-    {
-        try
-        {
-            // 移除可能存在的 data URI scheme 前缀
-            if (base64String.Contains(","))
-            {
-                base64String = base64String.Substring(base64String.IndexOf(",") + 1);
-            }
-
-            // 将 base64 字符串转换为字节数组
-            byte[] imageBytes = Convert.FromBase64String(base64String);
-
-            // 将字节数组写入文件
-            File.WriteAllBytes(outputPath, imageBytes);
-        }
-        catch (Exception ex)
-        {
-            throw new UserFriendlyException("gemini Base64转图像失败", innerException: ex);
-        }
-
-        //todo
-        //路径拼接一下？
-        return outputPath;
-    }
-
     #region 流式传输格式Http响应
 
     private static readonly byte[] EventPrefix = "event: "u8.ToArray();