package com.klp.controller;

import java.util.List;
import java.util.Arrays;
import java.util.Map;

import com.klp.domain.vo.BatchGroupVo;
import lombok.RequiredArgsConstructor;
import javax.servlet.http.HttpServletResponse;
import javax.validation.constraints.*;
import org.springframework.web.bind.annotation.*;
import org.springframework.validation.annotation.Validated;
import com.klp.common.annotation.RepeatSubmit;
import com.klp.common.annotation.Log;
import com.klp.common.core.controller.BaseController;
import com.klp.common.core.domain.PageQuery;
import com.klp.common.core.domain.R;
import com.klp.common.core.validate.AddGroup;
import com.klp.common.core.validate.EditGroup;
import com.klp.common.enums.BusinessType;
import com.klp.common.utils.poi.ExcelUtil;
import com.klp.domain.vo.WmsBatchVo;
import com.klp.domain.bo.WmsBatchBo;
import com.klp.service.IWmsBatchService;
import com.klp.common.core.page.TableDataInfo;

/**
 * 批次（合并相同工艺的任务）
 *
 * @author klp
 * @date 2025-08-14
 */
@Validated
@RequiredArgsConstructor
@RestController
@RequestMapping("/klp/batch")
public class WmsBatchController extends BaseController {

    private final IWmsBatchService iWmsBatchService;

    /**
     * 查询批次（合并相同工艺的任务）列表
     */
    @GetMapping("/list")
    public TableDataInfo<WmsBatchVo> list(WmsBatchBo bo, PageQuery pageQuery) {
        return iWmsBatchService.queryPageList(bo, pageQuery);
    }

    /**
     * 导出批次（合并相同工艺的任务）列表
     */
    @Log(title = "批次（合并相同工艺的任务）", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(WmsBatchBo bo, HttpServletResponse response) {
        List<WmsBatchVo> list = iWmsBatchService.queryList(bo);
        ExcelUtil.exportExcel(list, "批次（合并相同工艺的任务）", WmsBatchVo.class, response);
    }

    /**
     * 获取批次（合并相同工艺的任务）详细信息
     *
     * @param batchId 主键
     */
    @GetMapping("/{batchId}")
    public R<WmsBatchVo> getInfo(@NotNull(message = "主键不能为空")
                                     @PathVariable Long batchId) {
        return R.ok(iWmsBatchService.queryById(batchId));
    }

    /**
     * 新增批次（合并相同工艺的任务）
     */
    @Log(title = "批次（合并相同工艺的任务）", businessType = BusinessType.INSERT)
    @RepeatSubmit()
    @PostMapping()
    public R<Void> add(@Validated(AddGroup.class) @RequestBody WmsBatchBo bo) {
        return toAjax(iWmsBatchService.insertByBo(bo));
    }

    /**
     * 修改批次（合并相同工艺的任务）
     */
    @Log(title = "批次（合并相同工艺的任务）", businessType = BusinessType.UPDATE)
    @RepeatSubmit()
    @PutMapping()
    public R<Void> edit(@Validated(EditGroup.class) @RequestBody WmsBatchBo bo) {
        return toAjax(iWmsBatchService.updateByBo(bo));
    }

    /**
     * 删除批次（合并相同工艺的任务）
     *
     * @param batchIds 主键串
     */
    @Log(title = "批次（合并相同工艺的任务）", businessType = BusinessType.DELETE)
    @DeleteMapping("/{batchIds}")
    public R<Void> remove(@NotEmpty(message = "主键不能为空")
                          @PathVariable Long[] batchIds) {
        return toAjax(iWmsBatchService.deleteWithValidByIds(Arrays.asList(batchIds), true));
    }



    /**
     * 生成不会产生死锁的批次分配方案
     * 相同processId的任务会合并到一个批次组中
     * 不同processId的任务会放在不同的批次组中
     *
     * @param rows 任务执行顺序数组
     * @return 批次分配方案
     */
    @PostMapping("/generate")
    public R<List<BatchGroupVo>> generateNonDeadlockBatches(@RequestBody List<List<Map<String, Object>>> rows) {
        // 先获取原始的批次分配方案
        List<BatchGroupVo> originalBatches = iWmsBatchService.generateNonDeadlockBatches(rows);

        // 使用Java 8 Stream API按processId分组并合并任务
        Map<String, List<BatchGroupVo>> groupedByProcessId = originalBatches.stream()
            .collect(java.util.stream.Collectors.groupingBy(BatchGroupVo::getProcessId));

        // 合并相同processId的批次组
        List<BatchGroupVo> mergedBatches = new java.util.ArrayList<>();
        java.util.concurrent.atomic.AtomicInteger groupCounter = new java.util.concurrent.atomic.AtomicInteger(1);

        groupedByProcessId.forEach((processId, groups) -> {
            // 创建一个新的合并后的批次组
            BatchGroupVo mergedGroup = new BatchGroupVo();
            mergedGroup.setGroupId("Merged-Group-" + groupCounter.getAndIncrement());
            mergedGroup.setProcessId(processId);

            // 合并所有taskIds
            List<String> allTaskIds = groups.stream()
                .flatMap(group -> group.getTaskIds().stream())
                .collect(java.util.stream.Collectors.toList());
            mergedGroup.setTaskIds(allTaskIds);

            mergedBatches.add(mergedGroup);
        });

        return R.ok(mergedBatches);
    }


}