223 lines
7.4 KiB
Go
223 lines
7.4 KiB
Go
package domain
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import "errors"
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// 群通话（超级群语音聊天）领域模型。信令真值在 GroupCallStore（memory/postgres
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// 双实现），版本协议要求 version 必须持久化：客户端忽略 version 小于本地缓存的
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// updateGroupCallParticipants，重启回卷会让整个房间静默失联。
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// GroupCallState 是群通话状态。
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type GroupCallState string
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const (
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GroupCallStateActive GroupCallState = "active"
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GroupCallStateDiscarded GroupCallState = "discarded"
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)
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// GroupCallKind distinguishes regular channel group calls from ad-hoc
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// conference calls. Conference calls have no channel membership scope; access is
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// granted by creator/participant/invite/slug.
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type GroupCallKind string
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const (
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GroupCallKindChannel GroupCallKind = "channel"
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GroupCallKindConference GroupCallKind = "conference"
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)
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// GroupCallInviteStatus is the durable state of a private conference invite.
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type GroupCallInviteStatus string
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const (
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GroupCallInvitePending GroupCallInviteStatus = "pending"
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GroupCallInviteAccepted GroupCallInviteStatus = "accepted"
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GroupCallInviteDeclined GroupCallInviteStatus = "declined"
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GroupCallInviteMissed GroupCallInviteStatus = "missed"
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GroupCallInviteRevoked GroupCallInviteStatus = "revoked"
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)
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// 群通话业务错误；rpc 层映射为 GROUPCALL_* RPC_ERROR。
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var (
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ErrGroupCallInvalid = errors.New("group call invalid")
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ErrGroupCallDiscarded = errors.New("group call already discarded")
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ErrGroupCallAlreadyStarted = errors.New("group call already started")
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ErrGroupCallSSRCDuplicate = errors.New("group call ssrc duplicate")
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ErrGroupCallNotJoined = errors.New("group call participant missing")
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ErrConferenceChainInvalid = errors.New("conference call chain invalid")
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)
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// GroupCall 是一场群通话的权威态。
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type GroupCall struct {
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ID int64
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AccessHash int64
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ChannelID int64
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CreatorUserID int64
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Kind GroupCallKind
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State GroupCallState
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Title string
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JoinMuted bool
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// Version 是参与者协议版本：所有参与者变更事务内 +1，单调且持久。
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Version int
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ParticipantsCount int
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CreatedAt int
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DiscardedAt int
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Duration int
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// StartedMsgID 是 messageActionGroupCall(started) 的频道消息 id（discard 时
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// 客户端用它定位起始服务消息，当前仅记录）。
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StartedMsgID int
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// InviteSlug/InviteLink 仅 conference 使用。slug 必须在 migrate reason 与
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// InputGroupCallSlug 中稳定可解析；link 是客户端 UI 复制/分享用完整 URL。
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InviteSlug string
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InviteLink string
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// RandomID 是 conference create 的幂等键（creator_user_id + random_id）。
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RandomID int64
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// MigratedFromPhoneCallID 记录由哪通 P2P call 升级而来；link-only create 为 0。
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MigratedFromPhoneCallID int64
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}
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// Active 报告通话是否仍在进行。
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func (c GroupCall) Active() bool {
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return c.State == GroupCallStateActive
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}
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func (c GroupCall) Conference() bool {
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return c.Kind == GroupCallKindConference
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}
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// GroupCallParticipant 是房间内一名参与者。
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type GroupCallParticipant struct {
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CallID int64
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UserID int64
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// SSRC 是客户端在 join JSON 里自报的 audio ssrc（uint32 值域，存 int64 防符号坑）。
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SSRC int64
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JoinDate int
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ActiveDate int
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Muted bool
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// MutedByAdmin=true 时 can_self_unmute=false（管理员禁言/默认静音策略）。
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MutedByAdmin bool
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// VolumeByAdmin 是管理员设定的全局音量（1..20000），0=未设。
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VolumeByAdmin int
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// RaiseHandRating 非零表示举手中，值单调递增用于排序。
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RaiseHandRating int64
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// VideoJSON / PresentationJSON 是 tg.GroupCallParticipantVideo 的原始 JSON
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// 快照（M3/M4 启用；M0/M1 仅透明保存 self-edit，不转发）。
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VideoJSON []byte
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PresentationJSON []byte
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// PublicKey/JoinBlock 仅 conference 使用。服务端不解析 E2E 内容，只持久化
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// opaque bytes 并供 chain block 补拉/转发。
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PublicKey []byte
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JoinBlock []byte
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Left bool
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// LastCheckDate 是 checkGroupCall 保活水位。注意：客户端只在 Connecting 态
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// 发 checkGroupCall（媒体连通后心跳停止），掉线判定必须与 SFU 媒体面活性
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// 取双过期（见 sweeper），绝不能单凭此字段。
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LastCheckDate int
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}
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// CreateGroupCallRequest 创建群通话。
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type CreateGroupCallRequest struct {
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ChannelID int64
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CreatorUserID int64
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RandomID int64
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Title string
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Now int
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}
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// JoinGroupCallRequest 加入/重进群通话（rejoin 同主键换新 ssrc）。
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type JoinGroupCallRequest struct {
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CallID int64
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UserID int64
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SSRC int64
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Muted bool
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IsAdmin bool
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PublicKey []byte
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JoinBlock []byte
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// VideoJSON 是本次 join 铸造的视频内部状态（endpoint+源组+active）；rejoin
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// 整体替换并**清空旧 PresentationJSON**（客户端主连接 rejoin 后会重发
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// joinGroupCallPresentation，旧屏幕登记必须作废）。
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VideoJSON []byte
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Now int
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}
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// GroupCallMutation 是一次参与者维度变更的结果：变更后的 call 行（含新 version）
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// 与受影响的参与者行（推送 updateGroupCallParticipants 用）。
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type GroupCallMutation struct {
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Call GroupCall
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Participant GroupCallParticipant
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}
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// RemoveConferenceCallParticipantsRequest describes a conference participant
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// removal from both the media participant set and the E2E member chain.
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type RemoveConferenceCallParticipantsRequest struct {
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CallID int64
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AuthorUserID int64
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TargetUserIDs []int64
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OnlyLeft bool
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Kick bool
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Block []byte
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Now int
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}
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// RemoveConferenceCallParticipantsResult is the transactional result of
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// accepting a conference E2E removal block and/or kicking active participants.
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type RemoveConferenceCallParticipantsResult struct {
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Call GroupCall
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ParticipantsChanged []GroupCallParticipant
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ChainBlock GroupCallChainBlock
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ChainBlockAppended bool
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}
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// GroupCallParticipantUpdate 是 editGroupCallParticipant 的字段级更新（nil=不动）。
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type GroupCallParticipantUpdate struct {
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Muted *bool
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MutedByAdmin *bool
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VolumeByAdmin *int
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RaiseHandRating *int64
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VideoJSON *[]byte
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PresentationJSON *[]byte
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Now int
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}
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// GroupCallParticipantOverride 是 per-viewer 视图覆盖（setter→target）：
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// 本地静音/本地音量，仅 setter 自己可见，不进全房间 version。
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type GroupCallParticipantOverride struct {
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MutedByYou bool
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Volume int // 0=未设
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}
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// GroupCallParticipantPage 是 getGroupParticipants 的分页结果。
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type GroupCallParticipantPage struct {
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Count int
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Participants []GroupCallParticipant
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NextOffset string
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Version int
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}
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// GroupCallInvite 是 conference call 在私聊中发出的邀请服务消息索引。
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type GroupCallInvite struct {
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CallID int64
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InviterUserID int64
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InviteeUserID int64
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MessageID int
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Status GroupCallInviteStatus
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Video bool
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CreatedAt int
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UpdatedAt int
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}
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// GroupCallChainBlockLatestOffset 是客户端用来请求当前 sub-chain 最新 block 的哨兵值。
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const GroupCallChainBlockLatestOffset = -1
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// GroupCallChainBlock 是 conference E2E chain 的 opaque block。
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type GroupCallChainBlock struct {
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CallID int64
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SubChainID int
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Offset int
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AuthorUserID int64
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Block []byte
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CreatedAt int
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}
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type GroupCallChainBlockPage struct {
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Blocks []GroupCallChainBlock
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NextOffset int
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}
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