package cn.iocoder.yudao.module.mes.controller.admin.pro.workorder;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.ListUtil;
import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.collection.MapUtils;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.mes.controller.admin.pro.route.vo.process.MesProProcessBomItemVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.workorder.vo.process.MesProWorkOrderProcessPageReqVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.workorder.vo.process.MesProWorkOrderProcessRespVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.workorder.vo.process.MesProWorkOrderProcessSaveReqVO;
import cn.iocoder.yudao.module.mes.dal.dataobject.md.item.MesMdItemDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.process.MesProProcessDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.workorder.MesProWorkOrderBomDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.workorder.MesProWorkOrderProcessDO;
import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
import cn.iocoder.yudao.module.mes.service.pro.process.MesProProcessService;
import cn.iocoder.yudao.module.mes.service.pro.workorder.MesProWorkOrderBomService;
import cn.iocoder.yudao.module.mes.service.pro.workorder.MesProWorkOrderProcessService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.*;
import java.util.stream.Collectors;

import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSet;

@Tag(name = "管理后台 - MES 生产工单工序")
@RestController
@RequestMapping("/mes/pro/work-order-process")
@Validated
public class MesProWorkOrderProcessController {

    @Resource
    private MesProWorkOrderProcessService workOrderProcessService;
    @Resource
    private MesProWorkOrderBomService workOrderBomService;
    @Resource
    private MesProProcessService processService;
    @Resource
    private MesMdItemService itemService;

    @PostMapping("/create")
    @Operation(summary = "创建工单工序")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Long> createWorkOrderProcess(@Valid @RequestBody MesProWorkOrderProcessSaveReqVO createReqVO) {
        return success(workOrderProcessService.createWorkOrderProcess(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新工单工序")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> updateWorkOrderProcess(@Valid @RequestBody MesProWorkOrderProcessSaveReqVO updateReqVO) {
        workOrderProcessService.updateWorkOrderProcess(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除工单工序")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> deleteWorkOrderProcess(@RequestParam("id") Long id) {
        workOrderProcessService.deleteWorkOrderProcess(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得工单工序")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<MesProWorkOrderProcessRespVO> getWorkOrderProcess(@RequestParam("id") Long id) {
        MesProWorkOrderProcessDO workOrderProcess = workOrderProcessService.getWorkOrderProcess(id);
        if (workOrderProcess == null) {
            return success(null);
        }
        return success(buildWorkOrderProcessRespVOList(ListUtil.of(workOrderProcess)).get(0));
    }

    @GetMapping("/page")
    @Operation(summary = "获得工单工序分页")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<PageResult<MesProWorkOrderProcessRespVO>> getWorkOrderProcessPage(@Valid MesProWorkOrderProcessPageReqVO pageReqVO) {
        PageResult<MesProWorkOrderProcessDO> pageResult = workOrderProcessService.getWorkOrderProcessPage(pageReqVO);
        return success(new PageResult<>(buildWorkOrderProcessRespVOList(pageResult.getList()), pageResult.getTotal()));
    }

    @GetMapping("/list-by-work-order-id")
    @Operation(summary = "获得工单的工序列表")
    @Parameter(name = "workOrderId", description = "工单编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<List<MesProWorkOrderProcessRespVO>> getWorkOrderProcessListByWorkOrderId(
            @RequestParam("workOrderId") Long workOrderId) {
        List<MesProWorkOrderProcessDO> list = workOrderProcessService.getWorkOrderProcessListByWorkOrderId(workOrderId);
        return success(buildWorkOrderProcessRespVOList(list));
    }

    @GetMapping("/list-by-product-id")
    @Operation(summary = "根据产品获取工艺路线工序列表（用于工单预填）")
    @Parameter(name = "productId", description = "产品编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<List<MesProWorkOrderProcessRespVO>> getProcessListByProductId(
            @RequestParam("productId") Long productId) {
        List<MesProWorkOrderProcessDO> list = workOrderProcessService.getProcessListByProductId(productId);
        return success(buildWorkOrderProcessRespVOList(list));
    }

    @PostMapping("/batch-save")
    @Operation(summary = "批量保存工单工序（新增+更新+删除）")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> batchSaveWorkOrderProcess(@Valid @RequestBody List<MesProWorkOrderProcessSaveReqVO> list) {
        workOrderProcessService.batchSaveWorkOrderProcess(list);
        return success(true);
    }

    // ==================== 拼接 VO ====================

    private List<MesProWorkOrderProcessRespVO> buildWorkOrderProcessRespVOList(List<MesProWorkOrderProcessDO> list) {
        if (CollUtil.isEmpty(list)) {
            return Collections.emptyList();
        }
        // 1. 批量获取关联数据
        Set<Long> processIds = convertSet(list, MesProWorkOrderProcessDO::getProcessId);
        processIds.removeAll(Collections.singleton(null)); // 移除 null
        // 获取 nextProcessId 对应的工序名称
        Set<Long> nextProcessIds = convertSet(list, MesProWorkOrderProcessDO::getNextProcessId);
        nextProcessIds.removeAll(Collections.singleton(null));
        processIds.addAll(nextProcessIds);
        Map<Long, MesProProcessDO> processMap = CollUtil.isNotEmpty(processIds)
                ? processService.getProcessMap(processIds) : Collections.emptyMap();
        // 获取产出物料（解析逗号分隔的字符串）
        Set<Long> allOutputItemIds = new HashSet<>();
        Map<Long, List<Long>> voOutputItemIdsMap = new HashMap<>();
        for (int i = 0; i < list.size(); i++) {
            String outputItemIdStr = list.get(i).getOutputItemId();
            if (outputItemIdStr != null && !outputItemIdStr.isBlank()) {
                List<Long> ids = Arrays.stream(outputItemIdStr.split(","))
                        .map(String::trim).filter(s -> !s.isEmpty())
                        .map(Long::valueOf).collect(Collectors.toList());
                voOutputItemIdsMap.put((long) i, ids);
                allOutputItemIds.addAll(ids);
            }
        }
        Map<Long, MesMdItemDO> itemMap = CollUtil.isNotEmpty(allOutputItemIds)
                ? itemService.getItemMap(allOutputItemIds) : Collections.emptyMap();

        // 2. 查询投料BOM（按工序分组）
        Set<Long> workOrderIds = convertSet(list, MesProWorkOrderProcessDO::getWorkOrderId);
        workOrderIds.removeAll(Collections.singleton(null));
        Map<Long, List<MesProProcessBomItemVO>> bomItemsByProcessId = new HashMap<>();
        Set<Long> allBomItemIds = new HashSet<>();
        for (Long woId : workOrderIds) {
            List<MesProWorkOrderBomDO> bomList = workOrderBomService.getWorkOrderBomListByWorkOrderId(woId);
            if (CollUtil.isNotEmpty(bomList)) {
                allBomItemIds.addAll(convertSet(bomList, MesProWorkOrderBomDO::getItemId));
                for (MesProWorkOrderBomDO bom : bomList) {
                    bomItemsByProcessId.computeIfAbsent(bom.getProcessId(), k -> new ArrayList<>())
                            .add(BeanUtils.toBean(bom, MesProProcessBomItemVO.class));
                }
            }
        }
        // 填充投料物料编码和名称
        Map<Long, MesMdItemDO> bomItemMap = CollUtil.isNotEmpty(allBomItemIds)
                ? itemService.getItemMap(allBomItemIds) : Collections.emptyMap();
        bomItemsByProcessId.values().forEach(vos -> vos.forEach(vo -> {
            MapUtils.findAndThen(bomItemMap, vo.getItemId(), item -> {
                vo.setItemCode(item.getCode()).setItemName(item.getName());
            });
        }));

        // 3. 拼接 VO
        List<MesProWorkOrderProcessRespVO> result = BeanUtils.toBean(list, MesProWorkOrderProcessRespVO.class);
        for (int i = 0; i < result.size(); i++) {
            MesProWorkOrderProcessRespVO vo = result.get(i);
            MapUtils.findAndThen(processMap, vo.getProcessId(), process -> {
                vo.setProcessCode(process.getCode()).setProcessName(process.getName());
            });
            MapUtils.findAndThen(processMap, vo.getNextProcessId(), process -> {
                vo.setNextProcessName(process.getName());
            });
            // 产出物料（支持多选）
            List<Long> ids = voOutputItemIdsMap.getOrDefault((long) i, Collections.emptyList());
            if (!ids.isEmpty()) {
                vo.setOutputItemIds(ids);
                List<String> names = ids.stream()
                        .map(id -> {
                            MesMdItemDO item = itemMap.get(id);
                            return item != null ? item.getName() : String.valueOf(id);
                        }).collect(Collectors.toList());
                vo.setOutputItemNames(String.join(", ", names));
                // 向后兼容：第一个产出物料
                Long firstId = ids.get(0);
                vo.setOutputItemId(firstId);
                MesMdItemDO firstItem = itemMap.get(firstId);
                if (firstItem != null) {
                    vo.setOutputItemCode(firstItem.getCode());
                    vo.setOutputItemName(firstItem.getName());
                }
            }
        }
        // 设置每个工序各自的投料BOM
        result.forEach(vo -> vo.setBomItems(bomItemsByProcessId.getOrDefault(vo.getProcessId(), Collections.emptyList())));
        return result;
    }

}