diff --git a/.github/workflows/integration_test.yml b/.github/workflows/integration_test.yml
index b0cd0836..bcbd15ab 100644
--- a/.github/workflows/integration_test.yml
+++ b/.github/workflows/integration_test.yml
@@ -104,6 +104,7 @@ jobs:
           sed -i "s|AI_AWS_SECRET_ACCESS_KEY=.*|AI_AWS_SECRET_ACCESS_KEY=${{ secrets.LOCAL_AI_AWS_SECRET_ACCESS_KEY }}|" .env
           sed -i 's|AI_APPFLOWY_HOST=.*|AI_APPFLOWY_HOST=http://localhost|' .env
           sed -i 's|APPFLOWY_WEB_URL=.*|APPFLOWY_WEB_URL=http://localhost:3000|' .env
+          sed -i 's|.*APPFLOWY_S3_PRESIGNED_URL_ENDPOINT=.*|APPFLOWY_S3_PRESIGNED_URL_ENDPOINT=http://localhost/minio-api|' .env
         shell: bash
 
       - name: Update Nginx Configuration
diff --git a/libs/appflowy-ai-client/src/dto.rs b/libs/appflowy-ai-client/src/dto.rs
index 8e354fb2..43f9c70a 100644
--- a/libs/appflowy-ai-client/src/dto.rs
+++ b/libs/appflowy-ai-client/src/dto.rs
@@ -147,6 +147,7 @@ pub enum CompletionType {
   MakeShorter = 3,
   MakeLonger = 4,
   ContinueWriting = 5,
+  Explain = 6,
 }
 
 #[derive(Debug, Clone, Serialize)]
diff --git a/libs/appflowy-ai-client/tests/chat_test/completion_test.rs b/libs/appflowy-ai-client/tests/chat_test/completion_test.rs
index 3f216b34..211349ad 100644
--- a/libs/appflowy-ai-client/tests/chat_test/completion_test.rs
+++ b/libs/appflowy-ai-client/tests/chat_test/completion_test.rs
@@ -5,6 +5,28 @@ use appflowy_ai_client::dto::{
   ResponseFormat,
 };
 
+#[tokio::test]
+async fn completion_explain_test() {
+  let client = appflowy_ai_client();
+  let params = CompleteTextParams {
+    text: "Snowboarding".to_string(),
+    completion_type: Some(CompletionType::Explain),
+    custom_prompt: None,
+    metadata: Some(CompletionMetadata {
+      object_id: uuid::Uuid::new_v4().to_string(),
+      workspace_id: Some(uuid::Uuid::new_v4().to_string()),
+      rag_ids: None,
+    }),
+    format: ResponseFormat::default(),
+  };
+  let stream = client
+    .stream_completion_text(params, "gpt-4o-mini")
+    .await
+    .unwrap();
+  let text = collect_stream_text(stream).await;
+  assert!(!text.is_empty());
+}
+
 #[tokio::test]
 async fn completion_image_test() {
   let client = appflowy_ai_client();
diff --git a/libs/database/src/file/s3_client_impl.rs b/libs/database/src/file/s3_client_impl.rs
index aa111e6c..9dc6fa3d 100644
--- a/libs/database/src/file/s3_client_impl.rs
+++ b/libs/database/src/file/s3_client_impl.rs
@@ -90,6 +90,13 @@ impl AwsS3BucketClientImpl {
       .map_or(url.clone(), |presigned| {
         url.replace(&self.endpoint, presigned)
       });
+    trace!(
+      "generated presigned url: {}, public presigned url:{}, endpoint:{}, presigned_url_endpoint:{:?}",
+      url,
+      public_url,
+      self.endpoint,
+      self.presigned_url_endpoint
+    );
     Ok(public_url)
   }
 
diff --git a/tests/workspace/import_test.rs b/tests/workspace/import_test.rs
index 97b527cc..44633d93 100644
--- a/tests/workspace/import_test.rs
+++ b/tests/workspace/import_test.rs
@@ -193,10 +193,6 @@ async fn upload_file(
     .await?
     .presigned_url;
 
-  // if url.contains("http://minio:9000") {
-  //   url = url.replace("http://minio:9000", "http://localhost/minio");
-  // }
-
   if let Some(secs) = upload_after_secs {
     tokio::time::sleep(Duration::from_secs(secs)).await;
   }
@@ -215,9 +211,9 @@ async fn import_notion_zip_until_complete(name: &str) -> (TestClient, String) {
   // Uncomment the following lines to use the predicated upload file API.
   // Currently, we use `upload_file` to send a file to appflowy_worker, which then
   // processes the upload task.
-  // let file_path = PathBuf::from(format!("tests/workspace/asset/{name}"));
-  // client.api_client.import_file(&file_path).await.unwrap();
-  upload_file(&client, name, None).await.unwrap();
+  let file_path = PathBuf::from(format!("tests/workspace/asset/{name}"));
+  client.api_client.import_file(&file_path).await.unwrap();
+  // upload_file(&client, name, None).await.unwrap();
 
   let default_workspace_id = client.workspace_id().await;