Initial open source release

internal/store/dispatch_outbox.go

@@ -0,0 +1,27 @@
+package store
+
+import (
+	"context"
+	"time"
+
+	"telesrv/internal/domain"
+)
+
+// DispatchOutboxItem 是待投递给在线 session 的 update 任务。
+type DispatchOutboxItem struct {
+	ID               int64
+	TargetUserID     int64
+	Pts              int
+	EventType        domain.UpdateEventType
+	ExcludeAuthKeyID [8]byte
+	ExcludeSessionID int64
+	Attempts         int
+}
+
+// DispatchOutboxStore 持久化 transactional outbox。
+type DispatchOutboxStore interface {
+	ClaimPending(ctx context.Context, limit int) ([]DispatchOutboxItem, error)
+	MarkDelivered(ctx context.Context, targetUserID, id int64) error
+	MarkFailed(ctx context.Context, targetUserID, id int64, lastError string) error
+	DeleteFailed(ctx context.Context, olderThan time.Duration, limit int) (int, error)
+}