refactor: introduce Wire dependency injection and interface-based architecture
- Add Google Wire for compile-time dependency injection - Replace concrete service types with interfaces across handlers - Remove global state (DB, cache) in favor of constructor injection - Split monolithic files into focused modules: - config: separate files for each config domain - dto: converters split by domain (user, post, message, group) - cache: separate metrics.go and redis_cache.go - Introduce unified apperrors package with string-based error codes - Add transaction support with context-aware repository methods - Upgrade golang.org/x/crypto from 0.17.0 to 0.26.0
This commit is contained in:
235
internal/dto/user_converter.go
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235
internal/dto/user_converter.go
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package dto
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import (
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"carrot_bbs/internal/model"
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"carrot_bbs/internal/pkg/utils"
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)
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// ==================== User 转换 ====================
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// getAvatarOrDefault 获取头像URL，如果为空则返回在线头像生成服务的URL
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func getAvatarOrDefault(user *model.User) string {
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return utils.GetAvatarOrDefault(user.Username, user.Nickname, user.Avatar)
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}
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// ConvertUserToResponse 将User转换为UserResponse
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func ConvertUserToResponse(user *model.User) *UserResponse {
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if user == nil {
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return nil
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}
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return &UserResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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Phone: user.Phone,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: user.PostsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToResponseWithFollowing 将User转换为UserResponse（包含关注状态）
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func ConvertUserToResponseWithFollowing(user *model.User, isFollowing bool) *UserResponse {
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if user == nil {
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return nil
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}
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return &UserResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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Phone: user.Phone,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: user.PostsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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IsFollowing: isFollowing,
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IsFollowingMe: false, // 默认false，需要单独计算
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToResponseWithPostsCount 将User转换为UserResponse（使用实时计算的帖子数量）
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func ConvertUserToResponseWithPostsCount(user *model.User, postsCount int) *UserResponse {
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if user == nil {
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return nil
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}
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return &UserResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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Phone: user.Phone,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: postsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToResponseWithMutualFollow 将User转换为UserResponse（包含双向关注状态）
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func ConvertUserToResponseWithMutualFollow(user *model.User, isFollowing, isFollowingMe bool) *UserResponse {
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if user == nil {
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return nil
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}
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return &UserResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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Phone: user.Phone,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: user.PostsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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IsFollowing: isFollowing,
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IsFollowingMe: isFollowingMe,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToResponseWithMutualFollowAndPostsCount 将User转换为UserResponse（包含双向关注状态和实时计算的帖子数量）
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func ConvertUserToResponseWithMutualFollowAndPostsCount(user *model.User, isFollowing, isFollowingMe bool, postsCount int) *UserResponse {
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if user == nil {
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return nil
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}
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return &UserResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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Phone: user.Phone,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: postsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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IsFollowing: isFollowing,
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IsFollowingMe: isFollowingMe,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToDetailResponse 将User转换为UserDetailResponse
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func ConvertUserToDetailResponse(user *model.User) *UserDetailResponse {
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if user == nil {
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return nil
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}
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return &UserDetailResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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EmailVerified: user.EmailVerified,
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: user.PostsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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IsVerified: user.IsVerified,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUserToDetailResponseWithPostsCount 将User转换为UserDetailResponse（使用实时计算的帖子数量）
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func ConvertUserToDetailResponseWithPostsCount(user *model.User, postsCount int) *UserDetailResponse {
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if user == nil {
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return nil
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}
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return &UserDetailResponse{
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ID: user.ID,
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Username: user.Username,
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Nickname: user.Nickname,
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Email: user.Email,
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EmailVerified: user.EmailVerified,
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Phone: user.Phone, // 仅当前用户自己可见
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Avatar: getAvatarOrDefault(user),
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CoverURL: user.CoverURL,
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Bio: user.Bio,
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Website: user.Website,
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Location: user.Location,
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PostsCount: postsCount,
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FollowersCount: user.FollowersCount,
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FollowingCount: user.FollowingCount,
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IsVerified: user.IsVerified,
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CreatedAt: FormatTime(user.CreatedAt),
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}
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}
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// ConvertUsersToResponse 将User列表转换为响应列表
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func ConvertUsersToResponse(users []*model.User) []*UserResponse {
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result := make([]*UserResponse, 0, len(users))
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for _, user := range users {
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result = append(result, ConvertUserToResponse(user))
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}
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return result
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}
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// ConvertUsersToResponseWithMutualFollow 将User列表转换为响应列表（包含双向关注状态）
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// followingStatusMap: key是用户ID，value是[isFollowing, isFollowingMe]
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func ConvertUsersToResponseWithMutualFollow(users []*model.User, followingStatusMap map[string][2]bool) []*UserResponse {
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result := make([]*UserResponse, 0, len(users))
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for _, user := range users {
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status, ok := followingStatusMap[user.ID]
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if ok {
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result = append(result, ConvertUserToResponseWithMutualFollow(user, status[0], status[1]))
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} else {
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result = append(result, ConvertUserToResponse(user))
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}
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}
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return result
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}
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// ConvertUsersToResponseWithMutualFollowAndPostsCount 将User列表转换为响应列表（包含双向关注状态和实时计算的帖子数量）
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// followingStatusMap: key是用户ID，value是[isFollowing, isFollowingMe]
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// postsCountMap: key是用户ID，value是帖子数量
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func ConvertUsersToResponseWithMutualFollowAndPostsCount(users []*model.User, followingStatusMap map[string][2]bool, postsCountMap map[string]int64) []*UserResponse {
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result := make([]*UserResponse, 0, len(users))
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for _, user := range users {
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status, hasStatus := followingStatusMap[user.ID]
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postsCount, hasPostsCount := postsCountMap[user.ID]
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// 如果没有帖子数量，使用数据库中的值
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if !hasPostsCount {
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postsCount = int64(user.PostsCount)
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}
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if hasStatus {
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result = append(result, ConvertUserToResponseWithMutualFollowAndPostsCount(user, status[0], status[1], int(postsCount)))
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} else {
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result = append(result, ConvertUserToResponseWithPostsCount(user, int(postsCount)))
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}
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}
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return result
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}
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