package com.music.controller;

import com.music.common.Result;
import com.music.dto.MergeRequest;
import com.music.exception.BusinessException;
import com.music.service.LibraryMergeService;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.UUID;

/**
 * 整理入库任务控制器
 */
@RestController
@RequestMapping("/api/merge")
@Validated
public class MergeController {

    private final LibraryMergeService libraryMergeService;

    public MergeController(LibraryMergeService libraryMergeService) {
        this.libraryMergeService = libraryMergeService;
    }

    /**
     * 启动整理入库任务
     */
    @PostMapping("/start")
    public Result<StartResponse> start(@Valid @RequestBody MergeRequest request) {
        String taskId = UUID.randomUUID().toString();
        libraryMergeService.merge(
                taskId,
                request.getSrcDir(),
                request.getDstDir(),
                request.isSmartUpgrade(),
                request.isKeepBackup()
        );

        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;
        }
    }
}