fix: 修复模板导入功能的关键问题

修复问题:
- 修复数据库状态格式不一致导致的列表显示错误
- 修复单个导入完成后统计信息显示为0的问题
- 修复日期时间解析错误导致的panic问题
- 修复所有unwrap()调用导致的潜在崩溃

 技术改进:
- 统一使用Debug格式保存和查询import_status
- 改进日期解析支持多种格式(RFC3339和SQLite格式)
- 优化进度监控逻辑，保留最后有效统计数据
- 完善错误处理，避免锁中毒和解析错误

 功能完善:
- 模板导入完成后正确显示'已完成'状态
- 统计信息准确显示成功/失败数量
- 进度监控稳定运行，无无限轮询问题

apps/desktop/src-tauri/src/business/services/template_import_service.rs

@@ -478,14 +478,7 @@ impl TemplateImportService {
         let conn = self.database.get_connection();
         let conn = conn.lock().map_err(|e| anyhow!("获取数据库连接失败: {}", e))?;
 
-        let status_str = match status {
+        let status_str = format!("{:?}", status);
-            ImportStatus::Pending => "pending",
-            ImportStatus::Parsing => "parsing",
-            ImportStatus::Uploading => "uploading",
-            ImportStatus::Processing => "processing",
-            ImportStatus::Completed => "completed",
-            ImportStatus::Failed => "failed",
-        };
 
         conn.execute(
             "UPDATE templates SET import_status = ?, updated_at = datetime('now') WHERE id = ?",

apps/desktop/src-tauri/src/business/services/template_service.rs

@@ -399,12 +399,34 @@ impl TemplateService {
             tracks: Vec::new(),    // 稍后填充
             import_status,
             source_file_path: row.get("source_file_path")?,
-            created_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>("created_at")?)
+            created_at: {
-                .map_err(|_e| rusqlite::Error::InvalidColumnType(0, "created_at".to_string(), rusqlite::types::Type::Text))?
+                let created_at_str: String = row.get("created_at")?;
-                .with_timezone(&chrono::Utc),
+                chrono::DateTime::parse_from_rfc3339(&created_at_str)
-            updated_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>("updated_at")?)
+                    .or_else(|_| {
-                .map_err(|_e| rusqlite::Error::InvalidColumnType(0, "updated_at".to_string(), rusqlite::types::Type::Text))?
+                        // 尝试解析SQLite格式的日期
-                .with_timezone(&chrono::Utc),
+                        chrono::NaiveDateTime::parse_from_str(&created_at_str, "%Y-%m-%d %H:%M:%S")
+                            .map(|dt| dt.and_utc().fixed_offset())
+                    })
+                    .map_err(|e| {
+                        eprintln!("❌ 解析created_at失败: '{}', 错误: {}", created_at_str, e);
+                        rusqlite::Error::InvalidColumnType(0, "created_at".to_string(), rusqlite::types::Type::Text)
+                    })?
+                    .with_timezone(&chrono::Utc)
+            },
+            updated_at: {
+                let updated_at_str: String = row.get("updated_at")?;
+                chrono::DateTime::parse_from_rfc3339(&updated_at_str)
+                    .or_else(|_| {
+                        // 尝试解析SQLite格式的日期
+                        chrono::NaiveDateTime::parse_from_str(&updated_at_str, "%Y-%m-%d %H:%M:%S")
+                            .map(|dt| dt.and_utc().fixed_offset())
+                    })
+                    .map_err(|e| {
+                        eprintln!("❌ 解析updated_at失败: '{}', 错误: {}", updated_at_str, e);
+                        rusqlite::Error::InvalidColumnType(0, "updated_at".to_string(), rusqlite::types::Type::Text)
+                    })?
+                    .with_timezone(&chrono::Utc)
+            },
             is_active: row.get("is_active")?,
         })
     }
@@ -447,12 +469,32 @@ impl TemplateService {
             height: row.get::<_, Option<i64>>("height")?.map(|h| h as u32),
             upload_status,
             metadata: row.get("metadata")?,
-            created_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>("created_at")?)
+            created_at: {
-                .unwrap()
+                let created_at_str: String = row.get("created_at")?;
-                .with_timezone(&chrono::Utc),
+                chrono::DateTime::parse_from_rfc3339(&created_at_str)
-            updated_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>("updated_at")?)
+                    .or_else(|_| {
-                .unwrap()
+                        chrono::NaiveDateTime::parse_from_str(&created_at_str, "%Y-%m-%d %H:%M:%S")
-                .with_timezone(&chrono::Utc),
+                            .map(|dt| dt.and_utc().fixed_offset())
+                    })
+                    .map_err(|e| {
+                        eprintln!("❌ 解析素材created_at失败: '{}', 错误: {}", created_at_str, e);
+                        rusqlite::Error::InvalidColumnType(0, "created_at".to_string(), rusqlite::types::Type::Text)
+                    })?
+                    .with_timezone(&chrono::Utc)
+            },
+            updated_at: {
+                let updated_at_str: String = row.get("updated_at")?;
+                chrono::DateTime::parse_from_rfc3339(&updated_at_str)
+                    .or_else(|_| {
+                        chrono::NaiveDateTime::parse_from_str(&updated_at_str, "%Y-%m-%d %H:%M:%S")
+                            .map(|dt| dt.and_utc().fixed_offset())
+                    })
+                    .map_err(|e| {
+                        eprintln!("❌ 解析素材updated_at失败: '{}', 错误: {}", updated_at_str, e);
+                        rusqlite::Error::InvalidColumnType(0, "updated_at".to_string(), rusqlite::types::Type::Text)
+                    })?
+                    .with_timezone(&chrono::Utc)
+            },
         })
     }
 

apps/desktop/src/components/template/ImportProgressModal.tsx

@@ -15,6 +15,7 @@ export const ImportProgressModal: React.FC<ImportProgressModalProps> = ({
   onComplete,
 }) => {
   const [progress, setProgress] = useState<ImportProgress | null>(null);
+  const [lastValidProgress, setLastValidProgress] = useState<ImportProgress | null>(null);
   const { getImportProgress } = useTemplateStore();
 
   useEffect(() => {
@@ -28,23 +29,24 @@ export const ImportProgressModal: React.FC<ImportProgressModalProps> = ({
         const progressData = await getImportProgress(templateId);
         if (!isMounted) return;
 
+        // 如果有有效的进度数据，保存它并更新显示
+        if (progressData) {
           setProgress(progressData);
+          setLastValidProgress(progressData);
+        }
 
         // 如果进度数据为空（已被清除），说明导入已完成，停止轮询
         if (!progressData) {
-          // 设置一个完成状态的进度对象
+          // 使用最后一次有效的进度数据，但更新状态为完成
+          if (lastValidProgress) {
             const completedProgress: ImportProgress = {
-            template_id: templateId,
+              ...lastValidProgress,
-            template_name: "模板",
               status: ImportStatus.Completed,
-            total_materials: 0,
-            uploaded_materials: 0,
-            failed_materials: 0,
               current_operation: "导入完成",
-            error_message: undefined,
               progress_percentage: 100
             };
             setProgress(completedProgress);
+          }
 
           // 清除轮询
           if (interval) {

apps/desktop/src/pages/TemplateManagement.tsx

@@ -45,7 +45,7 @@ const TemplateManagement: React.FC = () => {
         page: currentPage,
         page_size: pageSize,
       });
-      
+      console.log(response)
       setTemplates(response.templates);
       setTotalPages(Math.ceil(response.total / pageSize));
     } catch (error) {