backend/internal/dto/group_dto.go

package dto

// ==================== Group DTOs ====================
// 从 dto.go 拆分而来：群组相关的请求与响应 DTO。
// 与 group_converter.go 同属群组域。

// CreateGroupRequest 创建群组请求
type CreateGroupRequest struct {
	Name        string   `json:"name" binding:"required,max=50"`
	Description string   `json:"description" binding:"max=500"`
	MemberIDs   []string `json:"member_ids"`
}

// UpdateGroupRequest 更新群组请求
type UpdateGroupRequest struct {
	Name        string `json:"name" binding:"omitempty,max=50"`
	Description string `json:"description" binding:"omitempty,max=500"`
	Avatar      string `json:"avatar" binding:"omitempty,url"`
}

// InviteMembersRequest 邀请成员请求
type InviteMembersRequest struct {
	MemberIDs []string `json:"member_ids" binding:"required,min=1"`
}

// TransferOwnerRequest 转让群主请求
type TransferOwnerRequest struct {
	NewOwnerID string `json:"new_owner_id" binding:"required"`
}

// SetRoleRequest 设置角色请求
type SetRoleRequest struct {
	Role string `json:"role" binding:"required,oneof=admin member"`
}

// SetNicknameRequest 设置昵称请求
type SetNicknameRequest struct {
	Nickname string `json:"nickname" binding:"max=50"`
}

// MuteMemberRequest 禁言成员请求
type MuteMemberRequest struct {
	Muted bool `json:"muted"`
}

// SetMuteAllRequest 设置全员禁言请求
type SetMuteAllRequest struct {
	MuteAll bool `json:"mute_all"`
}

// SetJoinTypeRequest 设置加群方式请求
type SetJoinTypeRequest struct {
	JoinType int `json:"join_type" binding:"min=0,max=2"`
}

// CreateAnnouncementRequest 创建群公告请求
type CreateAnnouncementRequest struct {
	Content string `json:"content" binding:"required,max=2000"`
}

// GroupResponse 群组响应
type GroupResponse struct {
	ID          string `json:"id"`
	Name        string `json:"name"`
	Avatar      string `json:"avatar"`
	Description string `json:"description"`
	OwnerID     string `json:"owner_id"`
	MemberCount int    `json:"member_count"`
	MaxMembers  int    `json:"max_members"`
	JoinType    int    `json:"join_type"`
	MuteAll     bool   `json:"mute_all"`
	IsMember    bool   `json:"is_member"`
	CreatedAt   string `json:"created_at"`
}

// GroupMemberResponse 群成员响应
type GroupMemberResponse struct {
	ID       string        `json:"id"`
	GroupID  string        `json:"group_id"`
	UserID   string        `json:"user_id"`
	Role     string        `json:"role"`
	Nickname string        `json:"nickname"`
	Muted    bool          `json:"muted"`
	JoinTime string        `json:"join_time"`
	User     *UserResponse `json:"user,omitempty"`
}

// GroupAnnouncementResponse 群公告响应
type GroupAnnouncementResponse struct {
	ID        string `json:"id"`
	GroupID   string `json:"group_id"`
	Content   string `json:"content"`
	AuthorID  string `json:"author_id"`
	IsPinned  bool   `json:"is_pinned"`
	CreatedAt string `json:"created_at"`
}

// GroupListResponse 群组列表响应
type GroupListResponse struct {
	List     []*GroupResponse `json:"list"`
	Total    int64            `json:"total"`
	Page     int              `json:"page"`
	PageSize int              `json:"page_size"`
}

// GroupMemberListResponse 群成员列表响应
type GroupMemberListResponse struct {
	List     []*GroupMemberResponse `json:"list"`
	Total    int64                  `json:"total"`
	Page     int                    `json:"page"`
	PageSize int                    `json:"page_size"`
}

// GroupAnnouncementListResponse 群公告列表响应
type GroupAnnouncementListResponse struct {
	List     []*GroupAnnouncementResponse `json:"list"`
	Total    int64                        `json:"total"`
	Page     int                          `json:"page"`
	PageSize int                          `json:"page_size"`
}