提交代码

backend/src/main/java/com/music/controller/DedupController.java

@@ -0,0 +1,72 @@
+package com.music.controller;
+
+import com.music.common.Result;
+import com.music.dto.DedupRequest;
+import com.music.exception.BusinessException;
+import com.music.service.DedupService;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.UUID;
+
+/**
+ * 音乐去重任务控制器
+ */
+@RestController
+@RequestMapping("/api/dedup")
+@Validated
+public class DedupController {
+
+    private final DedupService dedupService;
+
+    public DedupController(DedupService dedupService) {
+        this.dedupService = dedupService;
+    }
+
+    /**
+     * 启动音乐去重任务
+     */
+    @PostMapping("/start")
+    public Result<StartResponse> start(@Valid @RequestBody DedupRequest request) {
+        // 模式校验
+        if (!"copy".equalsIgnoreCase(request.getMode()) &&
+                !"move".equalsIgnoreCase(request.getMode())) {
+            throw new BusinessException(400, "模式参数错误，必须是 copy 或 move");
+        }
+
+        // 至少启用一种策略
+        if (!request.isUseMd5() && !request.isUseMetadata()) {
+            throw new BusinessException(400, "至少需要启用一种去重策略（MD5 或元数据匹配）");
+        }
+
+        String taskId = UUID.randomUUID().toString();
+        dedupService.dedup(
+                taskId,
+                request.getLibraryDir(),
+                request.getTrashDir(),
+                request.isUseMd5(),
+                request.isUseMetadata(),
+                request.getMode()
+        );
+
+        return Result.success(new StartResponse(taskId));
+    }
+
+    public static class StartResponse {
+        private String taskId;
+
+        public StartResponse(String taskId) {
+            this.taskId = taskId;
+        }
+
+        public String getTaskId() {
+            return taskId;
+        }
+
+        public void setTaskId(String taskId) {
+            this.taskId = taskId;
+        }
+    }
+}
+