feat: adding background jobs, Dockerfile

internal/bg/tokens_cleanup.go

@@ -0,0 +1,51 @@
+package bg
+
+import (
+	"context"
+	"time"
+
+	"github.com/dyaksa/archer"
+	"github.com/dyaksa/archer/job"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type RefreshTokenRow struct {
+	ID        string `gorm:"primaryKey"`
+	RevokedAt *time.Time
+	ExpiresAt time.Time
+	UpdatedAt time.Time
+}
+
+func (RefreshTokenRow) TableName() string { return "refresh_tokens" }
+
+type TokensCleanupArgs struct {
+	// kept in case you want to change retention or add dry-run later
+}
+
+func TokensCleanupWorker(db *gorm.DB, jobs *Jobs) archer.WorkerFn {
+	return func(ctx context.Context, j job.Job) (any, error) {
+		if err := CleanupRefreshTokens(db); err != nil {
+			return nil, err
+		}
+
+		// schedule tomorrow 03:45
+		next := time.Now().Truncate(24 * time.Hour).Add(24 * time.Hour).Add(3*time.Hour + 45*time.Minute)
+		_, _ = jobs.Enqueue(
+			ctx,
+			uuid.NewString(),
+			"tokens_cleanup",
+			TokensCleanupArgs{},
+			archer.WithScheduleTime(next),
+			archer.WithMaxRetries(1),
+		)
+		return nil, nil
+	}
+}
+
+func CleanupRefreshTokens(db *gorm.DB) error {
+	now := time.Now()
+	return db.
+		Where("revoked_at IS NOT NULL OR expires_at < ?", now).
+		Delete(&RefreshTokenRow{}).Error
+}