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.apilog.core.annotation.ApiAccessLog;
import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageParam;
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.framework.excel.core.util.ExcelUtils;
import cn.iocoder.yudao.module.crm.api.customer.CrmCustomerApi;
import cn.iocoder.yudao.module.crm.api.customer.dto.CrmCustomerRespDTO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.workorder.vo.*;
import cn.iocoder.yudao.module.mes.dal.dataobject.md.item.MesMdItemDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.md.unitmeasure.MesMdUnitMeasureDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.process.MesProProcessDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.task.MesProTaskDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.workorder.MesProWorkOrderDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.workorder.MesProWorkOrderProcessDO;
import cn.iocoder.yudao.module.mes.enums.pro.MesProWorkOrderProductionStatusEnum;
import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
import cn.iocoder.yudao.module.mes.service.md.unitmeasure.MesMdUnitMeasureService;
import cn.iocoder.yudao.module.mes.service.pro.process.MesProProcessService;
import cn.iocoder.yudao.module.mes.service.pro.task.MesProTaskService;
import cn.iocoder.yudao.module.mes.service.pro.workorder.MesProWorkOrderProcessService;
import cn.iocoder.yudao.module.mes.service.pro.workorder.MesProWorkOrderService;
import cn.iocoder.yudao.module.srm.api.supplier.SrmSupplierApi;
import cn.iocoder.yudao.module.srm.api.supplier.dto.SrmSupplierRespDTO;
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.servlet.http.HttpServletResponse;
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.io.IOException;
import java.math.BigDecimal;
import java.util.*;

import static cn.iocoder.yudao.framework.apilog.core.enums.OperateTypeEnum.EXPORT;
import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertMultiMap;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSet;

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

    @Resource
    private MesProWorkOrderService workOrderService;
    @Resource
    private MesMdItemService itemService;
    @Resource
    private CrmCustomerApi customerApi;
    @Resource
    private SrmSupplierApi srmSupplierApi;
    @Resource
    private MesMdUnitMeasureService unitMeasureService;
    @Resource
    private MesProWorkOrderProcessService workOrderProcessService;
    @Resource
    private MesProTaskService taskService;
    @Resource
    private MesProProcessService processService;

    @PostMapping("/create")
    @Operation(summary = "创建生产工单")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:create')")
    public CommonResult<Long> createWorkOrder(@Valid @RequestBody MesProWorkOrderSaveReqVO createReqVO) {
        return success(workOrderService.createWorkOrder(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新生产工单")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> updateWorkOrder(@Valid @RequestBody MesProWorkOrderSaveReqVO updateReqVO) {
        workOrderService.updateWorkOrder(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除生产工单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:delete')")
    public CommonResult<Boolean> deleteWorkOrder(@RequestParam("id") Long id) {
        workOrderService.deleteWorkOrder(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得生产工单")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<MesProWorkOrderRespVO> getWorkOrder(@RequestParam("id") Long id) {
        MesProWorkOrderDO workOrder = workOrderService.getWorkOrder(id);
        if (workOrder == null) {
            return success(null);
        }
        return success(buildWorkOrderRespVOList(ListUtil.of(workOrder)).get(0));
    }

    @GetMapping("/page")
    @Operation(summary = "获得生产工单分页")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<PageResult<MesProWorkOrderRespVO>> getWorkOrderPage(@Valid MesProWorkOrderPageReqVO pageReqVO) {
        PageResult<MesProWorkOrderDO> pageResult = workOrderService.getWorkOrderPage(pageReqVO);
        return success(new PageResult<>(buildWorkOrderRespVOList(pageResult.getList()), pageResult.getTotal()));
    }

    @GetMapping("/schedule-page")
    @Operation(summary = "获得生产工单调度状态分页")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<PageResult<MesProWorkOrderRespVO>> getWorkOrderSchedulePage(@Valid MesProWorkOrderPageReqVO pageReqVO) {
        PageResult<MesProWorkOrderDO> pageResult = workOrderService.getWorkOrderSchedulePage(pageReqVO);
        return success(new PageResult<>(buildWorkOrderRespVOList(pageResult.getList()), pageResult.getTotal()));
    }

    @GetMapping("/export-excel")
    @Operation(summary = "导出生产工单 Excel")
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:export')")
    @ApiAccessLog(operateType = EXPORT)
    public void exportWorkOrderExcel(@Valid MesProWorkOrderPageReqVO pageReqVO,
                                     HttpServletResponse response) throws IOException {
        pageReqVO.setPageSize(PageParam.PAGE_SIZE_NONE);
        List<MesProWorkOrderDO> list = workOrderService.getWorkOrderPage(pageReqVO).getList();
        List<MesProWorkOrderRespVO> voList = buildWorkOrderRespVOList(list);
        ExcelUtils.write(response, "生产工单.xls", "数据", MesProWorkOrderRespVO.class, voList);
    }

    @PutMapping("/confirm")
    @Operation(summary = "确认工单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> confirmWorkOrder(@RequestParam("id") Long id) {
        workOrderService.confirmWorkOrder(id);
        return success(true);
    }

    @PutMapping("/finish")
    @Operation(summary = "完成工单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> finishWorkOrder(@RequestParam("id") Long id) {
        workOrderService.finishWorkOrder(id);
        return success(true);
    }

    @PutMapping("/cancel")
    @Operation(summary = "取消工单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> cancelWorkOrder(@RequestParam("id") Long id) {
        workOrderService.cancelWorkOrder(id);
        return success(true);
    }

    @GetMapping("/progress/{id}")
    @Operation(summary = "获取工单进度详情")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:query')")
    public CommonResult<MesProWorkOrderProgressRespVO> getWorkOrderProgress(@PathVariable("id") Long id) {
        return success(workOrderService.getWorkOrderProgress(id));
    }

    @PostMapping("/check-auto-finish/{id}")
    @Operation(summary = "检查并自动完成工单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-work-order:update')")
    public CommonResult<Boolean> checkAutoFinish(@PathVariable("id") Long id) {
        return success(workOrderService.checkAndAutoFinishWorkOrder(id));
    }

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

    private List<MesProWorkOrderRespVO> buildWorkOrderRespVOList(List<MesProWorkOrderDO> list) {
        if (CollUtil.isEmpty(list)) {
            return Collections.emptyList();
        }
        // 1. 批量获取关联数据
        Set<Long> workOrderIds = convertSet(list, MesProWorkOrderDO::getId);
        Map<Long, MesMdItemDO> itemMap = itemService.getItemMap(
                convertSet(list, MesProWorkOrderDO::getProductId));
        Map<Long, CrmCustomerRespDTO> customerMap = customerApi.getCustomerMap(
                convertSet(list, MesProWorkOrderDO::getClientId));
        Map<Long, SrmSupplierRespDTO> supplierMap = srmSupplierApi.getSupplierList(
                convertSet(list, MesProWorkOrderDO::getVendorId)).getCheckedData().stream()
                .collect(java.util.stream.Collectors.toMap(SrmSupplierRespDTO::getId, s -> s));
        // 单位从产品关联的 item 获得
        Map<Long, MesMdUnitMeasureDO> unitMeasureMap = unitMeasureService.getUnitMeasureMap(
                convertSet(itemMap.values(), MesMdItemDO::getUnitMeasureId));
        Map<Long, MesProWorkOrderDO> parentMap = workOrderService.getWorkOrderMap(
                convertSet(list, MesProWorkOrderDO::getParentId));
                
        // 获取所有关联的工单工序和任务
        List<MesProWorkOrderProcessDO> allProcesses = workOrderProcessService.getWorkOrderProcessListByWorkOrderIds(workOrderIds);
        List<MesProTaskDO> allTasks = taskService.getTaskListByWorkOrderIds(workOrderIds);
        
        Set<Long> processIds = convertSet(allProcesses, MesProWorkOrderProcessDO::getProcessId);
        Map<Long, MesProProcessDO> processMap = processService.getProcessMap(processIds);

        Map<Long, List<MesProWorkOrderProcessDO>> woProcessMap = convertMultiMap(allProcesses, MesProWorkOrderProcessDO::getWorkOrderId);
        Map<Long, List<MesProTaskDO>> woTaskMap = convertMultiMap(allTasks, MesProTaskDO::getWorkOrderId);
                
        // 2. 拼接 VO（单位名称从产品关联的 item 获得）
        return BeanUtils.toBean(list, MesProWorkOrderRespVO.class, vo -> {
            MapUtils.findAndThen(itemMap, vo.getProductId(), item -> {
                vo.setProductName(item.getName()).setProductCode(item.getCode())
                        .setProductSpecification(item.getSpecification());
                MapUtils.findAndThen(unitMeasureMap, item.getUnitMeasureId(),
                        unitMeasure -> vo.setUnitMeasureName(unitMeasure.getName()));
            });
            MapUtils.findAndThen(customerMap, vo.getClientId(),
                    customer -> vo.setClientName(customer.getName()));
            MapUtils.findAndThen(supplierMap, vo.getVendorId(),
                    supplier -> vo.setVendorName(supplier.getName()));
            MapUtils.findAndThen(parentMap, vo.getParentId(),
                    parent -> vo.setParentCode(parent.getCode()));

            // 计算完工进度 (quantityProduced / quantity * 100)
            BigDecimal produced = vo.getQuantityProduced() != null ? vo.getQuantityProduced() : BigDecimal.ZERO;
            if (vo.getQuantity() != null && vo.getQuantity().compareTo(BigDecimal.ZERO) > 0) {
                vo.setCompletionProgress(produced.multiply(new BigDecimal("100")).divide(vo.getQuantity(), 2, java.math.RoundingMode.HALF_UP));
            } else {
                vo.setCompletionProgress(produced.compareTo(BigDecimal.ZERO) > 0 ? new BigDecimal("100.00") : BigDecimal.ZERO);
            }
                    
            // 计算进度和状态
            List<MesProWorkOrderProcessDO> processes = woProcessMap.getOrDefault(vo.getId(), Collections.emptyList());
            List<MesProTaskDO> tasks = woTaskMap.getOrDefault(vo.getId(), Collections.emptyList());
            
            List<MesProWorkOrderProcessProgressVO> progressList = new ArrayList<>();
            boolean allCompleted = !processes.isEmpty();
            boolean anyStarted = false;
            
            Map<Long, List<MesProTaskDO>> processTaskMap = convertMultiMap(tasks, MesProTaskDO::getProcessId);
            
            for (MesProWorkOrderProcessDO process : processes) {
                List<MesProTaskDO> pTasks = processTaskMap.getOrDefault(process.getProcessId(), Collections.emptyList());
                
                BigDecimal totalQty = pTasks.stream().map(t -> t.getQuantity() != null ? t.getQuantity() : BigDecimal.ZERO).reduce(BigDecimal.ZERO, BigDecimal::add);
                BigDecimal totalProduced = pTasks.stream().map(t -> t.getProducedQuantity() != null ? t.getProducedQuantity() : BigDecimal.ZERO).reduce(BigDecimal.ZERO, BigDecimal::add);
                
                MesProWorkOrderProcessProgressVO progressVO = new MesProWorkOrderProcessProgressVO();
                MesProProcessDO processDO = processMap.get(process.getProcessId());
                progressVO.setProcessName(processDO != null ? processDO.getName() : "");
                
                if (totalQty.compareTo(BigDecimal.ZERO) > 0) {
                    progressVO.setProgress(totalProduced.multiply(new BigDecimal("100")).divide(totalQty, 2, java.math.RoundingMode.HALF_UP));
                } else {
                    progressVO.setProgress(totalProduced.compareTo(BigDecimal.ZERO) > 0 ? new BigDecimal("100.00") : BigDecimal.ZERO);
                }
                progressList.add(progressVO);
                
                if (totalProduced.compareTo(BigDecimal.ZERO) > 0) {
                    anyStarted = true;
                }
                if (totalQty.compareTo(BigDecimal.ZERO) == 0 || totalProduced.compareTo(totalQty) < 0) {
                    allCompleted = false;
                }
            }
            
            vo.setProcessProgressList(progressList);
            if (processes.isEmpty()) {
                vo.setProductionStatus(MesProWorkOrderProductionStatusEnum.WAITING.getStatus()); // 待生产
            } else if (allCompleted) {
                vo.setProductionStatus(MesProWorkOrderProductionStatusEnum.FINISHED.getStatus()); // 生产完成
            } else if (anyStarted) {
                vo.setProductionStatus(MesProWorkOrderProductionStatusEnum.PRODUCING.getStatus()); // 生产中
            } else {
                vo.setProductionStatus(MesProWorkOrderProductionStatusEnum.WAITING.getStatus()); // 待生产
            }
        });
    }

}