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

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.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.route.vo.process.MesProRouteProcessRespVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.route.vo.process.MesProRouteProcessSaveReqVO;
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.route.MesProRouteProcessDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.route.MesProRouteProductBomDO;
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.route.MesProRouteProcessService;
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.convertMap;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSet;

@Tag(name = "管理后台 - MES 工艺路线工序")
@RestController
@RequestMapping("/mes/pro/route-process")
@Validated
public class MesProRouteProcessController {

    @Resource
    private MesProRouteProcessService routeProcessService;
    @Resource
    private MesProProcessService processService;
    @Resource
    private MesMdItemService mdItemService;

    @PostMapping("/create")
    @Operation(summary = "创建工艺路线工序")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:update')")
    public CommonResult<Long> createRouteProcess(@Valid @RequestBody MesProRouteProcessSaveReqVO createReqVO) {
        return success(routeProcessService.createRouteProcess(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新工艺路线工序")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:update')")
    public CommonResult<Boolean> updateRouteProcess(@Valid @RequestBody MesProRouteProcessSaveReqVO updateReqVO) {
        routeProcessService.updateRouteProcess(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除工艺路线工序")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:pro-route:update')")
    public CommonResult<Boolean> deleteRouteProcess(@RequestParam("id") Long id) {
        routeProcessService.deleteRouteProcess(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得工艺路线工序")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:query')")
    public CommonResult<MesProRouteProcessRespVO> getRouteProcess(@RequestParam("id") Long id) {
        MesProRouteProcessDO routeProcess = routeProcessService.getRouteProcess(id);
        return success(buildRouteProcessRespVO(routeProcess));
    }

    @GetMapping("/list-by-product")
    @Operation(summary = "按产品获得工序列表", description = "根据产品查找关联的工艺路线，返回该路线的工序列表（含各工序的投料BOM）")
    @Parameter(name = "productId", description = "产品编号", required = true, example = "1")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:query')")
    public CommonResult<List<MesProRouteProcessRespVO>> getRouteProcessListByProduct(@RequestParam("productId") Long productId) {
        List<MesProRouteProcessDO> list = routeProcessService.getRouteProcessListByProductId(productId);
        List<MesProRouteProcessRespVO> result = buildRouteProcessRespVOList(list);

        // 查询配置投料并按工序填充
        Map<Long, List<MesProRouteProductBomDO>> bomByProcess = routeProcessService.getRouteProcessBomMapByProductId(productId);
        if (!bomByProcess.isEmpty()) {
            Set<Long> itemIds = bomByProcess.values().stream()
                    .flatMap(List::stream)
                    .map(MesProRouteProductBomDO::getItemId)
                    .collect(Collectors.toSet());
            Map<Long, MesMdItemDO> itemMap = mdItemService.getItemMap(itemIds);
            for (MesProRouteProcessRespVO vo : result) {
                List<MesProRouteProductBomDO> processBoms = bomByProcess.get(vo.getProcessId());
                if (CollUtil.isNotEmpty(processBoms)) {
                    vo.setBomItems(processBoms.stream().map(bom -> {
                        MesProProcessBomItemVO itemVO = new MesProProcessBomItemVO();
                        itemVO.setItemId(bom.getItemId());
                        itemVO.setQuantity(bom.getQuantity());
                        itemVO.setRemark(bom.getRemark());
                        MesMdItemDO item = itemMap.get(bom.getItemId());
                        if (item != null) {
                            itemVO.setItemCode(item.getCode());
                            itemVO.setItemName(item.getName());
                        }
                        return itemVO;
                    }).collect(Collectors.toList()));
                }
            }
        }
        return success(result);
    }

    @GetMapping("/list-by-route")
    @Operation(summary = "按工艺路线获得工序列表")
    @Parameter(name = "routeId", description = "工艺路线编号", required = true, example = "1")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:query')")
    public CommonResult<List<MesProRouteProcessRespVO>> getRouteProcessListByRoute(@RequestParam("routeId") Long routeId) {
        List<MesProRouteProcessDO> list = routeProcessService.getRouteProcessListByRouteId(routeId);
        return success(buildRouteProcessRespVOList(list));
    }

    @GetMapping("/get-by-route-and-process")
    @Operation(summary = "按工艺路线+工序获得工序配置")
    @Parameter(name = "routeId", description = "工艺路线编号", required = true, example = "1")
    @Parameter(name = "processId", description = "工序编号", required = true, example = "1")
    @PreAuthorize("@ss.hasPermission('mes:pro-route:query')")
    public CommonResult<MesProRouteProcessRespVO> getRouteProcessByRouteAndProcess(
            @RequestParam("routeId") Long routeId,
            @RequestParam("processId") Long processId) {
        MesProRouteProcessDO routeProcess = routeProcessService.getRouteProcessByRouteIdAndProcessId(routeId, processId);
        return success(buildRouteProcessRespVO(routeProcess));
    }

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

    private List<MesProRouteProcessRespVO> buildRouteProcessRespVOList(List<MesProRouteProcessDO> list) {
        if (CollUtil.isEmpty(list)) {
            return Collections.emptyList();
        }
        // 1. 批量获取关联数据
        Set<Long> processIds = convertSet(list, MesProRouteProcessDO::getProcessId);
        list.forEach(item -> { if (item.getNextProcessId() != null) processIds.add(item.getNextProcessId()); });
        Map<Long, MesProProcessDO> processMap = convertMap(
                processService.getProcessList(new ArrayList<>(processIds)), MesProProcessDO::getId);
        // 2. 批量获取产出产品物料信息（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> outputItemMap = allOutputItemIds.isEmpty()
                ? Collections.emptyMap() : mdItemService.getItemMap(allOutputItemIds);
        // 3. 拼接 VO
        List<MesProRouteProcessRespVO> result = BeanUtils.toBean(list, MesProRouteProcessRespVO.class);
        for (int i = 0; i < result.size(); i++) {
            MesProRouteProcessRespVO vo = result.get(i);
            MapUtils.findAndThen(processMap, vo.getProcessId(),
                    process -> vo.setProcessCode(process.getCode()).setProcessName(process.getName()));
            MapUtils.findAndThen(processMap, vo.getNextProcessId(),
                    nextProcess -> vo.setNextProcessName(nextProcess.getName()));
            // 产出产品（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 = outputItemMap.get(id);
                            return item != null ? item.getName() : String.valueOf(id);
                        }).collect(Collectors.toList());
                vo.setOutputItemNames(String.join(", ", names));
                // 向后兼容：第一个产出产品
                Long firstId = ids.get(0);
                vo.setOutputItemId(firstId);
                MesMdItemDO firstItem = outputItemMap.get(firstId);
                if (firstItem != null) {
                    vo.setOutputItemCode(firstItem.getCode());
                    vo.setOutputItemName(firstItem.getName());
                }
            }
        }
        return result;
    }

    private MesProRouteProcessRespVO buildRouteProcessRespVO(MesProRouteProcessDO routeProcess) {
        if (routeProcess == null) {
            return null;
        }
        return buildRouteProcessRespVOList(ListUtil.of(routeProcess)).get(0);
    }

}