merged with fixes

internal/store/postgres/delivery_effect.go

@@ -0,0 +1,28 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jackc/pgx/v5"
+
+	"telesrv/internal/store"
+	"telesrv/internal/store/postgres/sqlcgen"
+)
+
+func applyDeliveryEffectsTx(ctx context.Context, tx pgx.Tx, effects []store.DeliveryEffect) ([]store.DeliveryEffect, error) {
+	qtx := sqlcgen.New(tx)
+	events := NewUpdateEventStore(tx)
+	for i := range effects {
+		effect := &effects[i]
+		if err := effect.Validate(); err != nil {
+			return nil, fmt.Errorf("delivery effect %d: %w", i, err)
+		}
+		event, err := events.appendInTx(ctx, tx, qtx, effect.TargetUserID, effect.Event, true, effect.ExcludeAuthKeyID, effect.ExcludeSessionID, true)
+		if err != nil {
+			return nil, fmt.Errorf("apply account PTS delivery effect %d: %w", i, err)
+		}
+		effect.Event = event
+	}
+	return effects, nil
+}