package podbackend

import (
	"context"
	"time"
)

// Lifecycle reconciles durable terminal markers into backend cleanup.
type Lifecycle struct {
	Backend  Backend
	Interval time.Duration
	OnError  func(error)
}

func (l Lifecycle) Run(ctx context.Context) error {
	interval := l.Interval
	if interval <= 0 {
		interval = 2 * time.Second
	}
	for {
		if _, err := l.Backend.CleanupTerminated(ctx); err != nil && ctx.Err() == nil && l.OnError != nil {
			l.OnError(err)
		}
		timer := time.NewTimer(interval)
		select {
		case <-ctx.Done():
			timer.Stop()
			return nil
		case <-timer.C:
		}
	}
}