package main

import (
	"context"
	"strings"
	"time"

	"github.com/fiatjaf/eventstore"
	"github.com/nbd-wtf/go-nostr"
)

var npubsArchive = make([]string, 0, 5000)

func updateArchives(ctx context.Context) {
	// do this so we don't run this every time we restart it locally

	time.Sleep(10 * time.Minute)

	for {
		loadNpubsArchive(ctx)
		select {
		case <-ctx.Done():
			return
		case <-time.After(24 * time.Hour):
		}
	}
}

func deleteOldCachedEvents(ctx context.Context) {
	wdb := eventstore.RelayWrapper{Store: db}

	for {
		select {
		case <-ctx.Done():
			return
		case <-time.After(time.Hour):
			log.Debug().Msg("deleting old cached events")
			now := time.Now().Unix()
			for _, key := range cache.GetPaginatedKeys("ttl:", 1, 500) {
				spl := strings.Split(key, ":")
				if len(spl) != 2 {
					log.Error().Str("key", key).Msg("broken 'ttl:' key")
					continue
				}

				var expires int64
				if ok := cache.GetJSON(key, &expires); !ok {
					log.Error().Str("key", key).Msg("failed to get 'ttl:' key")
					continue
				}

				if expires < now {
					// time to delete this
					id := spl[1]
					res, _ := wdb.QuerySync(ctx, nostr.Filter{IDs: []string{id}})
					if len(res) > 0 {
						log.Debug().Msgf("deleting %s", res[0].ID)
						if err := db.DeleteEvent(ctx, res[0]); err != nil {
							log.Warn().Err(err).Stringer("event", res[0]).Msg("failed to delete")
						}
					}
					cache.Delete(key)
				}
			}
		}
	}
}

func loadNpubsArchive(ctx context.Context) {
	log.Debug().Msg("refreshing the npubs archive")

	contactsArchive := make([]string, 0, 500)
	for _, pubkey := range s.TrustedPubKeys {
		ctx, cancel := context.WithTimeout(ctx, time.Second*4)
		pubkeyContacts := contactsForPubkey(ctx, pubkey)
		contactsArchive = append(contactsArchive, pubkeyContacts...)
		cancel()
	}

	for _, contact := range unique(contactsArchive) {
		log.Debug().Msgf("adding contact %s", contact)
		cache.SetWithTTL("pa:"+contact, nil, time.Hour*24*90)
	}
}