package cn.iocoder.yudao.module.erp.controller.admin.purchase;

import cn.hutool.core.collection.CollUtil;
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.object.BeanUtils;
import cn.iocoder.yudao.framework.common.util.collection.MapUtils;
import cn.iocoder.yudao.framework.excel.core.util.ExcelUtils;
import cn.iocoder.yudao.module.erp.controller.admin.purchase.vo.request.ErpPurchaseRequestPageReqVO;
import cn.iocoder.yudao.module.erp.controller.admin.purchase.vo.request.ErpPurchaseRequestRespVO;
import cn.iocoder.yudao.module.erp.controller.admin.purchase.vo.request.ErpPurchaseRequestSaveReqVO;
import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchaseRequestDO;
import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchaseRequestItemDO;
import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpSupplierDO;
import cn.iocoder.yudao.module.erp.service.purchase.ErpPurchaseRequestService;
import cn.iocoder.yudao.module.erp.service.purchase.ErpSupplierService;
import cn.iocoder.yudao.module.mdm.api.item.MdmItemApi;
import cn.iocoder.yudao.module.mdm.api.item.dto.MdmItemRespDTO;
import cn.iocoder.yudao.module.system.api.dept.DeptApi;
import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
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.util.List;
import java.util.Map;

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;
import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;

@Tag(name = "管理后台 - ERP 采购申请")
@RestController
@RequestMapping("/erp/purchase-request")
@Validated
public class ErpPurchaseRequestController {

    @Resource
    private ErpPurchaseRequestService purchaseRequestService;
    @Resource
    private ErpSupplierService supplierService;

    @Resource
    private MdmItemApi mdmItemApi;
    @Resource
    private AdminUserApi adminUserApi;
    @Resource
    private DeptApi deptApi;

    @PostMapping("/create")
    @Operation(summary = "创建采购申请")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:create')")
    public CommonResult<Long> createPurchaseRequest(@Valid @RequestBody ErpPurchaseRequestSaveReqVO createReqVO) {
        return success(purchaseRequestService.createPurchaseRequest(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新采购申请")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:update')")
    public CommonResult<Boolean> updatePurchaseRequest(@Valid @RequestBody ErpPurchaseRequestSaveReqVO updateReqVO) {
        purchaseRequestService.updatePurchaseRequest(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除采购申请")
    @Parameter(name = "ids", description = "编号数组", required = true)
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:delete')")
    public CommonResult<Boolean> deletePurchaseRequest(@RequestParam("ids") List<Long> ids) {
        purchaseRequestService.deletePurchaseRequest(ids);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得采购申请")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:query')")
    public CommonResult<ErpPurchaseRequestRespVO> getPurchaseRequest(@RequestParam("id") Long id) {
        ErpPurchaseRequestDO purchaseRequest = purchaseRequestService.getPurchaseRequest(id);
        if (purchaseRequest == null) {
            return success(null);
        }
        List<ErpPurchaseRequestItemDO> purchaseRequestItemList = purchaseRequestService.getPurchaseRequestItemListByRequestId(id);
        Map<Long, MdmItemRespDTO> itemMap = mdmItemApi.getItemMap(
                convertSet(purchaseRequestItemList, ErpPurchaseRequestItemDO::getProductId));
        return success(BeanUtils.toBean(purchaseRequest, ErpPurchaseRequestRespVO.class, purchaseRequestVO ->
                purchaseRequestVO.setItems(BeanUtils.toBean(purchaseRequestItemList, ErpPurchaseRequestRespVO.Item.class, item -> {
                    MapUtils.findAndThen(itemMap, item.getProductId(), mdmItem -> item.setProductName(mdmItem.getName())
                            .setProductBarCode(mdmItem.getBarCode()));
                }))));
    }

    @GetMapping("/page")
    @Operation(summary = "获得采购申请分页")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:query')")
    public CommonResult<PageResult<ErpPurchaseRequestRespVO>> getPurchaseRequestPage(@Valid ErpPurchaseRequestPageReqVO pageReqVO) {
        PageResult<ErpPurchaseRequestDO> pageResult = purchaseRequestService.getPurchaseRequestPage(pageReqVO);
        return success(buildPurchaseRequestVOPageResult(pageResult));
    }

    @GetMapping("/export-excel")
    @Operation(summary = "导出采购申请 Excel")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:export')")
    @ApiAccessLog(operateType = EXPORT)
    public void exportPurchaseRequestExcel(@Valid ErpPurchaseRequestPageReqVO pageReqVO,
                                           HttpServletResponse response) throws IOException {
        pageReqVO.setPageSize(PageParam.PAGE_SIZE_NONE);
        List<ErpPurchaseRequestRespVO> list = buildPurchaseRequestVOPageResult(purchaseRequestService.getPurchaseRequestPage(pageReqVO)).getList();
        ExcelUtils.write(response, "采购申请.xls", "数据", ErpPurchaseRequestRespVO.class, list);
    }

    @PutMapping("/submit")
    @Operation(summary = "提交采购申请审批")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:submit')")
    public CommonResult<Boolean> submitPurchaseRequest(@RequestParam("id") Long id,
                                                       @RequestParam("processDefinitionKey") String processDefinitionKey) {
        Long userId = getLoginUserId();
        purchaseRequestService.submitPurchaseRequest(id, processDefinitionKey, userId);
        return success(true);
    }

    @GetMapping("/approve-process-list")
    @Operation(summary = "获取采购申请审批流程列表")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:query')")
    public CommonResult<List<Map<String, Object>>> getApproveProcessList() {
        return success(purchaseRequestService.getPurchaseRequestApproveProcessDefinitionList());
    }

    @PostMapping("/generate-order")
    @Operation(summary = "生成采购订单")
    @PreAuthorize("@ss.hasPermission('erp:purchase-request:generate-order')")
    public CommonResult<Long> generatePurchaseOrder(@RequestParam("id") Long id,
                                                    @RequestParam("supplierId") Long supplierId) {
        return success(purchaseRequestService.generatePurchaseOrder(id, supplierId));
    }

    private PageResult<ErpPurchaseRequestRespVO> buildPurchaseRequestVOPageResult(PageResult<ErpPurchaseRequestDO> pageResult) {
        if (CollUtil.isEmpty(pageResult.getList())) {
            return PageResult.empty(pageResult.getTotal());
        }
        // 1.1 申请明细
        List<ErpPurchaseRequestItemDO> purchaseRequestItemList = purchaseRequestService.getPurchaseRequestItemListByRequestIds(
                convertSet(pageResult.getList(), ErpPurchaseRequestDO::getId));
        Map<Long, List<ErpPurchaseRequestItemDO>> purchaseRequestItemMap = convertMultiMap(purchaseRequestItemList, ErpPurchaseRequestItemDO::getRequestId);
        // 1.2 物料信息
        Map<Long, MdmItemRespDTO> itemMap = mdmItemApi.getItemMap(
                convertSet(purchaseRequestItemList, ErpPurchaseRequestItemDO::getProductId));
        // 1.3 供应商信息
        Map<Long, ErpSupplierDO> supplierMap = supplierService.getSupplierMap(
                convertSet(pageResult.getList(), ErpPurchaseRequestDO::getSupplierId));
        // 1.4 用户信息
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(
                convertSet(pageResult.getList(), ErpPurchaseRequestDO::getRequestUserId));
        // 1.5 部门信息
        Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(
                convertSet(pageResult.getList(), ErpPurchaseRequestDO::getRequestDeptId));
        // 2. 开始拼接
        return BeanUtils.toBean(pageResult, ErpPurchaseRequestRespVO.class, purchaseRequest -> {
            purchaseRequest.setItems(BeanUtils.toBean(purchaseRequestItemMap.get(purchaseRequest.getId()), ErpPurchaseRequestRespVO.Item.class,
                    item -> MapUtils.findAndThen(itemMap, item.getProductId(), mdmItem -> item.setProductName(mdmItem.getName())
                            .setProductBarCode(mdmItem.getBarCode()))));
            purchaseRequest.setProductNames(CollUtil.join(purchaseRequest.getItems(), "，", ErpPurchaseRequestRespVO.Item::getProductName));
            MapUtils.findAndThen(supplierMap, purchaseRequest.getSupplierId(), supplier -> purchaseRequest.setSupplierName(supplier.getName()));
            MapUtils.findAndThen(userMap, purchaseRequest.getRequestUserId(), user -> purchaseRequest.setRequestUserName(user.getNickname()));
            MapUtils.findAndThen(deptMap, purchaseRequest.getRequestDeptId(), dept -> purchaseRequest.setRequestDeptName(dept.getName()));
        });
    }

}