move sdk out to its own module.

sdk/system.go

@@ -1,59 +0,0 @@
-package sdk
-
-import (
-	"context"
-	"time"
-
-	"github.com/nbd-wtf/go-nostr"
-	"github.com/nbd-wtf/go-nostr/sdk/cache"
-)
-
-type System struct {
-	RelaysCache      cache.Cache32[[]Relay]
-	FollowsCache     cache.Cache32[[]Follow]
-	MetadataCache    cache.Cache32[ProfileMetadata]
-	Pool             *nostr.SimplePool
-	RelayListRelays  []string
-	FollowListRelays []string
-	MetadataRelays   []string
-}
-
-func (sys System) FetchRelays(ctx context.Context, pubkey string) []Relay {
-	if v, ok := sys.RelaysCache.Get(pubkey); ok {
-		return v
-	}
-
-	ctx, cancel := context.WithTimeout(ctx, time.Second*5)
-	defer cancel()
-	res := FetchRelaysForPubkey(ctx, sys.Pool, pubkey, sys.RelayListRelays...)
-	sys.RelaysCache.SetWithTTL(pubkey, res, time.Hour*6)
-	return res
-}
-
-func (sys System) FetchOutboxRelays(ctx context.Context, pubkey string) []string {
-	relays := sys.FetchRelays(ctx, pubkey)
-	result := make([]string, 0, len(relays))
-	for _, relay := range relays {
-		if relay.Outbox {
-			result = append(result, relay.URL)
-		}
-	}
-	return result
-}
-
-func (sys System) FetchProfileMetadata(ctx context.Context, pubkey string) ProfileMetadata {
-	if v, ok := sys.MetadataCache.Get(pubkey); ok {
-		return v
-	}
-
-	ctxRelays, cancel := context.WithTimeout(ctx, time.Second*2)
-	relays := sys.FetchOutboxRelays(ctxRelays, pubkey)
-	cancel()
-
-	ctx, cancel = context.WithTimeout(ctx, time.Second*3)
-	res := FetchProfileMetadata(ctx, sys.Pool, pubkey, append(relays, sys.MetadataRelays...)...)
-	cancel()
-
-	sys.MetadataCache.SetWithTTL(pubkey, res, time.Hour*6)
-	return res
-}