package app

import (
	"context"
	"time"
)

func (a *App) watchAddressOverrides(ctx context.Context) {
	if a.zones == nil || a.blocks == nil {
		return
	}
	t := time.NewTicker(2 * time.Second)
	defer t.Stop()
	var last string
	for {
		select {
		case <-ctx.Done():
			return
		case <-t.C:
			content, ok, err := a.zones.Data(ctx, "address-overrides.rpz")
			if err != nil || !ok || content == last {
				continue
			}
			a.overrideMu.Lock()
			a.blocks.SetManagedRPZ(content)
			if _, err := a.blocks.RefreshAll(ctx); err == nil {
				if a.cache != nil {
					a.cache.Flush()
				}
				last = content
			}
			a.overrideMu.Unlock()
		}
	}
}