package cn.iocoder.yudao.module.archive.controller.admin.borrow;

import cn.hutool.core.collection.CollUtil;
import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.archive.controller.admin.borrow.vo.ArchiveBorrowPageReqVO;
import cn.iocoder.yudao.module.archive.controller.admin.borrow.vo.ArchiveBorrowRespVO;
import cn.iocoder.yudao.module.archive.controller.admin.borrow.vo.ArchiveBorrowReturnReqVO;
import cn.iocoder.yudao.module.archive.controller.admin.borrow.vo.ArchiveBorrowSaveReqVO;
import cn.iocoder.yudao.module.archive.dal.dataobject.borrow.ArchiveBorrowDO;
import cn.iocoder.yudao.module.archive.enums.ArchiveBorrowStatusEnum;
import cn.iocoder.yudao.module.archive.service.borrow.ArchiveBorrowService;
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.validation.Valid;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.Collections;
import java.util.List;
import java.util.Map;

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

@Tag(name = "管理后台 - 档案借阅")
@RestController
@RequestMapping("/archive/borrow")
@Validated
public class ArchiveBorrowController {

    @Resource
    private ArchiveBorrowService borrowService;

    @Resource
    private AdminUserApi adminUserApi;

    @PostMapping("/create")
    @Operation(summary = "创建档案借阅单（草稿）")
    @PreAuthorize("@ss.hasPermission('archive:borrow:create')")
    public CommonResult<Long> createBorrow(@Valid @RequestBody ArchiveBorrowSaveReqVO createReqVO) {
        return success(borrowService.createBorrow(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新档案借阅单（仅草稿或已驳回可修改）")
    @PreAuthorize("@ss.hasPermission('archive:borrow:update')")
    public CommonResult<Boolean> updateBorrow(@Valid @RequestBody ArchiveBorrowSaveReqVO updateReqVO) {
        borrowService.updateBorrow(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除档案借阅单（仅草稿可删除）")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('archive:borrow:delete')")
    public CommonResult<Boolean> deleteBorrow(@RequestParam("id") Long id) {
        borrowService.deleteBorrow(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得档案借阅单")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('archive:borrow:query')")
    public CommonResult<ArchiveBorrowRespVO> getBorrow(@RequestParam("id") Long id) {
        return success(buildBorrowDetail(borrowService.getBorrow(id)));
    }

    @GetMapping("/page")
    @Operation(summary = "获得档案借阅单分页")
    @PreAuthorize("@ss.hasPermission('archive:borrow:query')")
    public CommonResult<PageResult<ArchiveBorrowRespVO>> getBorrowPage(@Valid ArchiveBorrowPageReqVO pageReqVO) {
        PageResult<ArchiveBorrowDO> pageResult = borrowService.getBorrowPage(pageReqVO);
        return success(new PageResult<>(buildBorrowDetailList(pageResult.getList()), pageResult.getTotal()));
    }

    @GetMapping("/overdue-page")
    @Operation(summary = "获得逾期未还借阅单分页（借出中 且 归还期限已过）")
    @PreAuthorize("@ss.hasPermission('archive:borrow:query')")
    public CommonResult<PageResult<ArchiveBorrowRespVO>> getOverdueBorrowPage(
            @Valid ArchiveBorrowPageReqVO pageReqVO) {
        PageResult<ArchiveBorrowDO> pageResult = borrowService.getOverdueBorrowPage(pageReqVO);
        return success(new PageResult<>(buildBorrowDetailList(pageResult.getList()), pageResult.getTotal()));
    }

    @PostMapping("/submit")
    @Operation(summary = "提交档案借阅审批")
    @PreAuthorize("@ss.hasPermission('archive:borrow:submit')")
    public CommonResult<Boolean> submitBorrow(@RequestParam("id") Long id,
                                              @RequestParam(value = "processDefinitionKey", required = false)
                                              String processDefinitionKey) {
        borrowService.submitBorrow(id, processDefinitionKey);
        return success(true);
    }

    @GetMapping("/approve-process-list")
    @Operation(summary = "获得档案借阅审批的流程定义列表")
    @PreAuthorize("@ss.hasPermission('archive:borrow:query')")
    public CommonResult<List<Map<String, Object>>> getApproveProcessDefinitionList() {
        return success(borrowService.getApproveProcessDefinitionList());
    }

    @PostMapping("/return")
    @Operation(summary = "归还登记（仅借出中可登记，归还后档案回到在库）")
    @PreAuthorize("@ss.hasPermission('archive:borrow:return')")
    public CommonResult<Boolean> returnBorrow(@Valid @RequestBody ArchiveBorrowReturnReqVO returnReqVO) {
        borrowService.returnBorrow(returnReqVO);
        return success(true);
    }

    // ==================== 内部方法 ====================

    private ArchiveBorrowRespVO buildBorrowDetail(ArchiveBorrowDO borrow) {
        if (borrow == null) {
            return null;
        }
        return buildBorrowDetailList(Collections.singletonList(borrow)).get(0);
    }

    private List<ArchiveBorrowRespVO> buildBorrowDetailList(List<ArchiveBorrowDO> list) {
        if (CollUtil.isEmpty(list)) {
            return Collections.emptyList();
        }

        // 1. 归还确认人姓名
        Map<Long, AdminUserRespDTO> confirmUserMap = adminUserApi.getUserMap(
                convertSet(list, ArchiveBorrowDO::getReturnConfirmUserId));

        // 2. 拼接结果（逾期状态实时计算，不落库）
        LocalDate today = LocalDate.now();
        return BeanUtils.toBean(list, ArchiveBorrowRespVO.class, vo -> {
            findAndThen(confirmUserMap, vo.getReturnConfirmUserId(),
                    user -> vo.setReturnConfirmUserName(user.getNickname()));
            boolean overdue = ArchiveBorrowStatusEnum.BORROWED.getStatus().equals(vo.getStatus())
                    && vo.getReturnDeadline() != null && vo.getReturnDeadline().isBefore(today);
            vo.setOverdue(overdue);
            vo.setOverdueDays(overdue ? ChronoUnit.DAYS.between(vo.getReturnDeadline(), today) : 0L);
        });
    }

}