235 lines
8.8 KiB
Go
235 lines
8.8 KiB
Go
package rpc
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import (
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"context"
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"github.com/gotd/td/tg"
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"telesrv/internal/domain"
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)
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// 群通话推送策略（updateGroupCall / updateGroupCallParticipants / connection 均无
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// pts，不进 getDifference）：扇出对象统一为「在线群成员」（OnlineChannelMemberUserIDs，
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// MaxChannelRealtimeFanout 封顶）——覆盖未入会的面板观察者（Android 点 banner 的
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// 参与者列表靠它增量刷新）。离线一致性三板斧：服务消息带频道 pts 可补收；banner 靠
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// channel.call_active/call_not_empty flag（拉 dialogs/getFullChannel 重建）；房间内
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// 状态靠 checkGroupCall 与 version 跳号触发 getGroupParticipants 全量 reload 自愈。
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// groupCallOnlineRecipients 返回在线群成员（含 originUserID 本人，推送时由
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// pushUserMessage 的 ctx except 排除发起 session、保留其它设备）。
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// 在线索引候选必须过一次 PG active 复核（与 channelFanoutRecipients 同款纵深）：
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// 索引 stale（如踢人窗口）时不得把通话状态/参与者名单继续推给已非成员者。
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func (r *Router) groupCallOnlineRecipients(ctx context.Context, channelID int64) []int64 {
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provider, ok := r.deps.Sessions.(OnlineUserProvider)
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if !ok {
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return nil
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}
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online := provider.OnlineChannelMemberUserIDs(channelID, domain.MaxChannelRealtimeFanout)
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if len(online) == 0 || r.deps.Channels == nil {
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return online
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}
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active, err := r.deps.Channels.FilterActiveMemberIDs(ctx, channelID, online)
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if err != nil {
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// 复核失败宁可漏推不误推：群通话 update 无 pts，客户端靠 checkGroupCall/
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// version 跳号自愈，漏推不丢一致性。
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return nil
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}
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return active
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}
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// groupCallUpdateContainer 把单条 update 包进 viewer 视角的 Updates 容器。
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func (r *Router) groupCallUpdateContainer(ctx context.Context, viewerUserID int64, channel domain.Channel, update tg.UpdateClass, userIDs []int64) *tg.Updates {
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chats := []tg.ChatClass{}
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if channel.ID != 0 {
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chats = append(chats, tgChannel(viewerUserID, channel, nil))
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}
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return &tg.Updates{
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Updates: []tg.UpdateClass{update},
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Users: r.tgUsersForIDs(ctx, viewerUserID, userIDs),
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Chats: chats,
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Date: int(r.clock.Now().Unix()),
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Seq: 0,
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}
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}
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// pushGroupCallUpdate 把 updateGroupCall（call 行变化）推给在线群成员。
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// 定时通话需 per-viewer 回填 schedule_start_subscribed：TDesktop applyCallFields
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// 无条件覆盖本地该 flag，漏填会把订阅者的"开播提醒"开关静默关掉。
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func (r *Router) pushGroupCallUpdate(ctx context.Context, channel domain.Channel, call domain.GroupCall) {
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if call.Conference() {
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r.pushConferenceGroupCallUpdate(ctx, call)
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return
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}
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var subscribed map[int64]struct{}
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if call.ScheduleDate > 0 {
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if ids, err := r.deps.GroupCalls.ScheduleSubscriberIDs(ctx, call.ID); err == nil {
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subscribed = make(map[int64]struct{}, len(ids))
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for _, id := range ids {
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subscribed[id] = struct{}{}
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}
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}
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}
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recipients := r.groupCallOnlineRecipients(ctx, channel.ID)
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for _, viewerID := range recipients {
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viewerCall := call
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if subscribed != nil {
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_, viewerCall.ScheduleStartSubscribed = subscribed[viewerID]
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}
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update := &tg.UpdateGroupCall{Call: tgGroupCall(viewerCall, viewerID, false, r.cfg.PublicBaseURL)}
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update.SetPeer(&tg.PeerChannel{ChannelID: channel.ID})
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r.pushUserMessage(ctx, viewerID, "group call update",
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r.groupCallUpdateContainer(ctx, viewerID, channel, update, []int64{call.CreatorUserID}))
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}
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}
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// pushGroupCallParticipantsUpdate 把参与者增量（version=N）推给在线群成员。
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// 每个 viewer 单独构建：participant.Self flag 是 per-viewer 的。
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func (r *Router) pushGroupCallParticipantsUpdate(ctx context.Context, channel domain.Channel, call domain.GroupCall, rows []domain.GroupCallParticipant) {
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if call.Conference() {
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r.pushConferenceGroupCallParticipantsUpdate(ctx, call, rows)
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return
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}
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if len(rows) == 0 {
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return
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}
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userIDs := make([]int64, 0, len(rows))
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for _, p := range rows {
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userIDs = append(userIDs, p.UserID)
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}
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recipients := r.groupCallOnlineRecipients(ctx, channel.ID)
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for _, viewerID := range recipients {
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update := &tg.UpdateGroupCallParticipants{
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Call: &tg.InputGroupCall{ID: call.ID, AccessHash: call.AccessHash},
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Participants: tgGroupCallParticipants(rows, viewerID),
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Version: call.Version,
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}
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r.pushUserMessage(ctx, viewerID, "group call participants",
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r.groupCallUpdateContainer(ctx, viewerID, channel, update, userIDs))
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}
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}
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func (r *Router) conferenceCallRecipients(ctx context.Context, callID int64) []int64 {
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return r.conferenceCallRecipientsWith(ctx, callID, nil)
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}
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func (r *Router) conferenceCallRecipientsWith(ctx context.Context, callID int64, extraUserIDs []int64) []int64 {
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if r.deps.GroupCalls == nil {
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return nil
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}
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recipients, err := r.deps.GroupCalls.ConferenceRecipients(ctx, callID)
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if err != nil {
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return nil
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}
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recipients = append(recipients, extraUserIDs...)
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recipients = uniquePositiveUserIDs(recipients)
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if len(recipients) == 0 {
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return nil
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}
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if provider, ok := r.deps.Sessions.(OnlineUserProvider); ok {
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return provider.OnlineUserIDsForCandidates(recipients, domain.MaxChannelRealtimeFanout)
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}
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return recipients
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}
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func (r *Router) pushConferenceGroupCallUpdate(ctx context.Context, call domain.GroupCall) {
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r.pushConferenceGroupCallUpdateTo(ctx, call, nil)
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}
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func (r *Router) pushConferenceGroupCallUpdateTo(ctx context.Context, call domain.GroupCall, extraUserIDs []int64) {
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recipients := r.conferenceCallRecipientsWith(ctx, call.ID, extraUserIDs)
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for _, viewerID := range recipients {
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update := &tg.UpdateGroupCall{Call: tgGroupCall(call, viewerID, viewerID == call.CreatorUserID, r.cfg.PublicBaseURL)}
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r.pushUserMessage(ctx, viewerID, "conference call update",
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r.groupCallUpdateContainer(ctx, viewerID, domain.Channel{}, update, []int64{call.CreatorUserID}))
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}
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}
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func (r *Router) pushConferenceGroupCallParticipantsUpdate(ctx context.Context, call domain.GroupCall, rows []domain.GroupCallParticipant) {
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if len(rows) == 0 {
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return
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}
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userIDs := make([]int64, 0, len(rows))
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for _, p := range rows {
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userIDs = append(userIDs, p.UserID)
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}
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recipients := r.conferenceCallRecipients(ctx, call.ID)
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for _, viewerID := range recipients {
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update := &tg.UpdateGroupCallParticipants{
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Call: &tg.InputGroupCall{ID: call.ID, AccessHash: call.AccessHash},
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Participants: tgGroupCallParticipants(rows, viewerID),
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Version: call.Version,
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}
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r.pushUserMessage(ctx, viewerID, "conference call participants",
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r.groupCallUpdateContainer(ctx, viewerID, domain.Channel{}, update, userIDs))
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}
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}
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// pushGroupCallServiceMessage 把 started/ended/invite 服务消息（带频道 pts）推给
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// 活跃成员（res.Recipients）。复用 channelOperationUpdates 的 per-viewer 构建。
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func (r *Router) pushGroupCallServiceMessage(ctx context.Context, originUserID int64, res domain.SendChannelMessageResult) {
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if res.Event.Pts == 0 {
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return
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}
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op := domain.CreateChannelResult{
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Channel: res.Channel,
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Message: res.Message,
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Event: res.Event,
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Recipients: res.Recipients,
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}
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r.pushChannelUpdates(ctx, originUserID, res.Channel.ID, res.Recipients, func(viewerUserID int64) *tg.Updates {
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return r.channelOperationUpdates(ctx, viewerUserID, op)
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})
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}
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// groupCallMutationFanout 是参与者维度变更后的统一扇出：participants 增量 +
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// call_not_empty 翻转时的 channel 维度刷新（Android banner 对 flag 依赖更重）。
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func (r *Router) groupCallMutationFanout(ctx context.Context, channel domain.Channel, mut domain.GroupCallMutation) domain.Channel {
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if mut.Call.Conference() {
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r.pushConferenceGroupCallParticipantsUpdate(ctx, mut.Call, []domain.GroupCallParticipant{mut.Participant})
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r.pushConferenceGroupCallUpdate(ctx, mut.Call)
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return domain.Channel{}
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}
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r.pushGroupCallParticipantsUpdate(ctx, channel, mut.Call, []domain.GroupCallParticipant{mut.Participant})
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wantNotEmpty := mut.Call.Active() && mut.Call.ParticipantsCount > 0
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if channel.ActiveCallNotEmpty != wantNotEmpty && r.deps.Channels != nil {
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updated, err := r.deps.Channels.SetActiveCall(ctx, channel.ID, channel.ActiveCallID, channel.ActiveCallAccessHash, wantNotEmpty)
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if err == nil {
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channel = updated
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r.pushGroupCallUpdate(ctx, channel, mut.Call)
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r.pushChannelStateToMembers(ctx, 0, channel)
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}
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} else {
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r.pushGroupCallUpdate(ctx, channel, mut.Call)
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}
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return channel
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}
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func groupCallParticipantUserIDs(rows []domain.GroupCallParticipant) []int64 {
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if len(rows) == 0 {
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return nil
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}
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out := make([]int64, 0, len(rows))
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for _, row := range rows {
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out = append(out, row.UserID)
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}
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return out
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}
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func uniquePositiveUserIDs(ids []int64) []int64 {
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if len(ids) == 0 {
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return nil
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}
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seen := make(map[int64]struct{}, len(ids))
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out := make([]int64, 0, len(ids))
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for _, id := range ids {
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if id <= 0 {
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continue
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}
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if _, ok := seen[id]; ok {
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continue
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}
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seen[id] = struct{}{}
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out = append(out, id)
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}
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return out
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}
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