63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package nip61
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import (
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"context"
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"slices"
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"fiatjaf.com/nostr"
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"github.com/elnosh/gonuts/cashu"
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)
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type Info struct {
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PublicKey nostr.PubKey
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Mints []string
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Relays []string
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}
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func (zi *Info) ToEvent(ctx context.Context, kr nostr.Keyer, evt *nostr.Event) error {
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evt.CreatedAt = nostr.Now()
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evt.Kind = 10019
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evt.Tags = make(nostr.Tags, 0, len(zi.Mints)+len(zi.Relays)+1)
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for _, mint := range zi.Mints {
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evt.Tags = append(evt.Tags, nostr.Tag{"mint", mint})
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}
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for _, url := range zi.Relays {
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evt.Tags = append(evt.Tags, nostr.Tag{"relay", url})
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}
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if zi.PublicKey != nostr.ZeroPK {
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evt.Tags = append(evt.Tags, nostr.Tag{"pubkey", zi.PublicKey.Hex()})
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}
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if err := kr.SignEvent(ctx, evt); err != nil {
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return err
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}
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return nil
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}
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func (zi *Info) ParseEvent(evt *nostr.Event) error {
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zi.Mints = make([]string, 0)
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for _, tag := range evt.Tags {
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if len(tag) < 2 {
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continue
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}
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switch tag[0] {
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case "mint":
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if len(tag) == 2 || slices.Contains(tag[2:], cashu.Sat.String()) {
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url, _ := nostr.NormalizeHTTPURL(tag[1])
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zi.Mints = append(zi.Mints, url)
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}
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case "relay":
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zi.Relays = append(zi.Relays, tag[1])
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case "pubkey":
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if pk, err := nostr.PubKeyFromHex(tag[1]); err == nil {
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zi.PublicKey = pk
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}
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}
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}
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return nil
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}
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