package cn.iocoder.yudao.module.ums.controller.admin.member;

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.system.api.storage.StorageAttachmentApi;
import cn.iocoder.yudao.module.system.api.storage.dto.StorageBlobRespDTO;
import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
import cn.iocoder.yudao.module.ums.controller.admin.member.vo.UmsMemberPageReqVO;
import cn.iocoder.yudao.module.ums.controller.admin.member.vo.UmsMemberRespVO;
import cn.iocoder.yudao.module.ums.controller.admin.member.vo.UmsMemberSaveReqVO;
import cn.iocoder.yudao.module.ums.dal.dataobject.member.UmsMemberDO;
import cn.iocoder.yudao.module.ums.service.member.UmsMemberService;
import cn.iocoder.yudao.module.ums.service.member.UmsMemberServiceImpl;
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.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
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;
import static cn.iocoder.yudao.framework.common.util.collection.MapUtils.findAndThen;

@Tag(name = "管理后台 - 会员管理")
@RestController
@RequestMapping("/ums/member")
@Validated
public class UmsMemberController {

    public static final String MEMBER_RECORD_TYPE =
            UmsMemberServiceImpl.MEMBER_RECORD_TYPE;

    @Resource
    private UmsMemberService memberService;

    @Resource
    private AdminUserApi adminUserApi;

    @Resource
    private StorageAttachmentApi storageAttachmentApi;

    @PostMapping("/create")
    @Operation(summary = "创建会员")
    @PreAuthorize("@ss.hasPermission('ums:member:create')")
    public CommonResult<Long> createMember(@Valid @RequestBody UmsMemberSaveReqVO createReqVO) {
        return success(memberService.createMember(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新会员")
    @PreAuthorize("@ss.hasPermission('ums:member:update')")
    public CommonResult<Boolean> updateMember(@Valid @RequestBody UmsMemberSaveReqVO updateReqVO) {
        memberService.updateMember(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除会员")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('ums:member:delete')")
    public CommonResult<Boolean> deleteMember(@RequestParam("id") Long id) {
        memberService.deleteMember(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得会员")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('ums:member:query')")
    public CommonResult<UmsMemberRespVO> getMember(@RequestParam("id") Long id) {
        UmsMemberDO member = memberService.getMember(id);
        return success(buildMemberDetail(member));
    }

    @GetMapping("/get-by-user-id")
    @Operation(summary = "通过用户ID获得会员")
    @Parameter(name = "userId", description = "用户ID", required = true, example = "100")
    @PreAuthorize("@ss.hasPermission('ums:member:query')")
    public CommonResult<UmsMemberRespVO> getMemberByUserId(@RequestParam("userId") Long userId) {
        UmsMemberDO member = memberService.getMemberByUserId(userId);
        return success(buildMemberDetail(member));
    }

    @GetMapping("/page")
    @Operation(summary = "获得会员/通讯录分页")
    @PreAuthorize("@ss.hasPermission('ums:member:query')")
    public CommonResult<PageResult<UmsMemberRespVO>> getMemberPage(
            @Valid UmsMemberPageReqVO pageReqVO) {
        PageResult<UmsMemberDO> pageResult = memberService.getMemberPage(pageReqVO);
        return success(new PageResult<>(buildMemberDetailList(pageResult.getList()), pageResult.getTotal()));
    }

    @PostMapping("/archive")
    @Operation(summary = "会员材料归档到档案管理")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('ums:member:archive')")
    public CommonResult<String> archiveMember(@RequestParam("id") Long id) {
        return success(memberService.archiveMember(id));
    }

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

    private UmsMemberRespVO buildMemberDetail(UmsMemberDO member) {
        if (member == null) {
            return null;
        }
        return buildMemberDetailList(Collections.singletonList(member)).get(0);
    }

    private List<UmsMemberRespVO> buildMemberDetailList(List<UmsMemberDO> list) {
        if (CollUtil.isEmpty(list)) {
            return Collections.emptyList();
        }

        // 1.1 获取关联系统用户信息
        Set<Long> userIds = convertSet(list, UmsMemberDO::getUserId);
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
        // 1.2 获取附件
        Map<Long, List<StorageBlobRespDTO>> attachmentMap = list.stream()
                .collect(Collectors.toMap(UmsMemberDO::getId,
                        r -> storageAttachmentApi.listAttachments(MEMBER_RECORD_TYPE, r.getId())));

        // 2. 拼接结果
        return BeanUtils.toBean(list, UmsMemberRespVO.class, (vo) -> {
            findAndThen(userMap, vo.getUserId(), user -> vo.setUsername(user.getNickname()));
            List<StorageBlobRespDTO> attachments = attachmentMap.getOrDefault(vo.getId(), Collections.emptyList());
            vo.setAttachmentList(attachments);
            vo.setHasAttachment(CollUtil.isNotEmpty(attachments));
        });
    }

}