chore: refresh gramsrv public release

internal/app/groupcalls/service.go

@@ -0,0 +1,121 @@
+// Package groupcalls 实现超级群语音聊天（group call）的信令业务层：
+// ID/access_hash 分配与 store 编排。权限（admin/成员资格）由 rpc 层校验，
+// version 单调性与并发串行化由 store 层事务保证。
+package groupcalls
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/binary"
+	"fmt"
+
+	"telesrv/internal/domain"
+	"telesrv/internal/store"
+)
+
+// Service 是群通话业务服务。
+type Service struct {
+	store store.GroupCallStore
+}
+
+// NewService 创建群通话服务。
+func NewService(st store.GroupCallStore) *Service {
+	return &Service{store: st}
+}
+
+// Create 分配 id/access_hash 并建会。
+func (s *Service) Create(ctx context.Context, channelID, creatorUserID int64, title string, now int) (domain.GroupCall, error) {
+	id, err := randomPositiveInt64()
+	if err != nil {
+		return domain.GroupCall{}, err
+	}
+	accessHash, err := randomPositiveInt64()
+	if err != nil {
+		return domain.GroupCall{}, err
+	}
+	return s.store.CreateGroupCall(ctx, domain.GroupCall{
+		ID:            id,
+		AccessHash:    accessHash,
+		ChannelID:     channelID,
+		CreatorUserID: creatorUserID,
+		Title:         title,
+		Version:       1,
+		CreatedAt:     now,
+	})
+}
+
+func (s *Service) Get(ctx context.Context, callID int64) (domain.GroupCall, bool, error) {
+	return s.store.GetGroupCall(ctx, callID)
+}
+
+func (s *Service) Join(ctx context.Context, req domain.JoinGroupCallRequest) (domain.GroupCallMutation, error) {
+	return s.store.JoinGroupCall(ctx, req)
+}
+
+func (s *Service) Leave(ctx context.Context, callID, userID int64, now int) (domain.GroupCallMutation, error) {
+	return s.store.LeaveGroupCall(ctx, callID, userID, now)
+}
+
+func (s *Service) Discard(ctx context.Context, callID int64, now int) (domain.GroupCall, []domain.GroupCallParticipant, error) {
+	return s.store.DiscardGroupCall(ctx, callID, now)
+}
+
+func (s *Service) Touch(ctx context.Context, callID, userID int64, now int) ([]int64, bool, error) {
+	return s.store.TouchParticipant(ctx, callID, userID, now)
+}
+
+func (s *Service) Participant(ctx context.Context, callID, userID int64) (domain.GroupCallParticipant, bool, error) {
+	return s.store.GetParticipant(ctx, callID, userID)
+}
+
+func (s *Service) Participants(ctx context.Context, callID int64, offset string, limit int) (domain.GroupCallParticipantPage, error) {
+	return s.store.ListParticipants(ctx, callID, offset, limit)
+}
+
+func (s *Service) UpdateParticipant(ctx context.Context, callID, userID int64, update domain.GroupCallParticipantUpdate) (domain.GroupCallMutation, bool, error) {
+	return s.store.UpdateParticipant(ctx, callID, userID, update)
+}
+
+func (s *Service) SetTitle(ctx context.Context, callID int64, title string) (domain.GroupCall, bool, error) {
+	return s.store.SetGroupCallTitle(ctx, callID, title)
+}
+
+func (s *Service) SetJoinMuted(ctx context.Context, callID int64, joinMuted bool) (domain.GroupCall, bool, error) {
+	return s.store.SetGroupCallJoinMuted(ctx, callID, joinMuted)
+}
+
+func (s *Service) SetStartedMessageID(ctx context.Context, callID int64, msgID int) error {
+	return s.store.SetStartedMessageID(ctx, callID, msgID)
+}
+
+func (s *Service) SweepStale(ctx context.Context, checkOlderThan, now, limit int) ([]domain.GroupCallMutation, error) {
+	return s.store.SweepStaleParticipants(ctx, checkOlderThan, now, limit)
+}
+
+func (s *Service) ResetAllParticipants(ctx context.Context, now int) ([]domain.GroupCall, error) {
+	return s.store.ResetAllParticipants(ctx, now)
+}
+
+func (s *Service) NextRaiseHandRating(ctx context.Context, callID int64) (int64, error) {
+	return s.store.NextRaiseHandRating(ctx, callID)
+}
+
+func (s *Service) SetParticipantOverride(ctx context.Context, callID, setterUserID, targetUserID int64, override domain.GroupCallParticipantOverride, clear bool) error {
+	return s.store.SetParticipantOverride(ctx, callID, setterUserID, targetUserID, override, clear)
+}
+
+func (s *Service) ParticipantOverride(ctx context.Context, callID, setterUserID, targetUserID int64) (domain.GroupCallParticipantOverride, bool, error) {
+	return s.store.GetParticipantOverride(ctx, callID, setterUserID, targetUserID)
+}
+
+func randomPositiveInt64() (int64, error) {
+	var buf [8]byte
+	if _, err := rand.Read(buf[:]); err != nil {
+		return 0, fmt.Errorf("groupcalls: random id: %w", err)
+	}
+	v := int64(binary.BigEndian.Uint64(buf[:]) >> 1)
+	if v == 0 {
+		v = 1
+	}
+	return v, nil
+}