package cn.iocoder.yudao.module.im.controller.admin.manager.friend;
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import cn.hutool.core.collection.CollUtil;
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import cn.iocoder.yudao.framework.common.pojo.CommonResult;
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import cn.iocoder.yudao.framework.common.pojo.PageResult;
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import cn.iocoder.yudao.framework.common.util.collection.MapUtils;
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import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
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import cn.iocoder.yudao.module.im.controller.admin.manager.friend.vo.ImFriendManagerPageReqVO;
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import cn.iocoder.yudao.module.im.controller.admin.manager.friend.vo.ImFriendManagerRespVO;
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import cn.iocoder.yudao.module.im.dal.dataobject.friend.ImFriendDO;
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import cn.iocoder.yudao.module.im.service.friend.ImFriendService;
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import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
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import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import jakarta.annotation.Resource;
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import jakarta.validation.Valid;
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import org.springframework.security.access.prepost.PreAuthorize;
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import org.springframework.validation.annotation.Validated;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.Map;
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import java.util.Set;
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import java.util.stream.Stream;
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import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
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import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSetByFlatMap;
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@Tag(name = "管理后台 - IM 好友管理")
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@RestController
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@RequestMapping("/im/manager/friend")
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@Validated
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public class ImFriendManagerController {
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@Resource
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private ImFriendService friendService;
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@Resource
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private AdminUserApi adminUserApi;
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@GetMapping("/page")
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@Operation(summary = "获得好友关系分页")
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@PreAuthorize("@ss.hasPermission('im:manager:friend:query')")
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public CommonResult<PageResult<ImFriendManagerRespVO>> getFriendPage(
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@Valid ImFriendManagerPageReqVO pageReqVO) {
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// 1. 分页查询
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PageResult<ImFriendDO> pageResult = friendService.getFriendPage(pageReqVO);
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if (CollUtil.isEmpty(pageResult.getList())) {
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return success(PageResult.empty(pageResult.getTotal()));
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}
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// 2.1 一次性批量查询用户 + 好友的昵称
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Set<Long> userIds = convertSetByFlatMap(pageResult.getList(),
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f -> Stream.of(f.getUserId(), f.getFriendUserId()));
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Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
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// 2.2 转换为 VO，填充昵称
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return success(BeanUtils.toBean(pageResult, ImFriendManagerRespVO.class, vo -> {
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MapUtils.findAndThen(userMap, vo.getUserId(),
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user -> vo.setUserNickname(user.getNickname()));
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MapUtils.findAndThen(userMap, vo.getFriendUserId(),
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user -> vo.setFriendNickname(user.getNickname()));
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}));
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}
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}
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