fix(AnthropicProvider): update usage and metrics handling to prevent TypeError (#6813)

src/renderer/src/providers/AiProvider/AnthropicProvider.ts

@@ -445,6 +445,14 @@ export default class AnthropicProvider extends BaseProvider {
               )
             }
 
+            if (thinking_content) {
+              onChunk({
+                type: ChunkType.THINKING_COMPLETE,
+                text: thinking_content,
+                thinking_millsec: new Date().getTime() - time_first_token_millsec
+              })
+            }
+
             userMessages.push({
               role: message.role,
               content: message.content
@@ -464,18 +472,31 @@ export default class AnthropicProvider extends BaseProvider {
               }
             }
 
-            finalUsage.prompt_tokens += message.usage?.input_tokens || 0
+            // 直接修改finalUsage对象会报错，TypeError: Cannot assign to read only property 'prompt_tokens' of object '#<Object>'
-            finalUsage.completion_tokens += message.usage?.output_tokens || 0
+            // 暂未找到原因
-            finalUsage.total_tokens += finalUsage.prompt_tokens + finalUsage.completion_tokens
+            const updatedUsage: Usage = {
-            finalMetrics.completion_tokens = finalUsage.completion_tokens
+              ...finalUsage,
-            finalMetrics.time_completion_millsec += new Date().getTime() - start_time_millsec
+              prompt_tokens: finalUsage.prompt_tokens + (message.usage?.input_tokens || 0),
-            finalMetrics.time_first_token_millsec = time_first_token_millsec - start_time_millsec
+              completion_tokens: finalUsage.completion_tokens + (message.usage?.output_tokens || 0)
+            }
+            updatedUsage.total_tokens = updatedUsage.prompt_tokens + updatedUsage.completion_tokens
+
+            const updatedMetrics: Metrics = {
+              ...finalMetrics,
+              completion_tokens: updatedUsage.completion_tokens,
+              time_completion_millsec:
+                finalMetrics.time_completion_millsec + (new Date().getTime() - start_time_millsec),
+              time_first_token_millsec: time_first_token_millsec - start_time_millsec
+            }
+
+            Object.assign(finalUsage, updatedUsage)
+            Object.assign(finalMetrics, updatedMetrics)
 
             onChunk({
               type: ChunkType.BLOCK_COMPLETE,
               response: {
-                usage: finalUsage,
+                usage: updatedUsage,
-                metrics: finalMetrics
+                metrics: updatedMetrics
               }
             })
             resolve()
@@ -488,7 +509,9 @@ export default class AnthropicProvider extends BaseProvider {
     }
     onChunk({ type: ChunkType.LLM_RESPONSE_CREATED })
     const start_time_millsec = new Date().getTime()
-    await processStream(body, 0).finally(cleanup)
+    await processStream(body, 0).finally(() => {
+      cleanup()
+    })
   }
 
   /**