73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
package sdk
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import (
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"context"
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"encoding/json"
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"fmt"
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"github.com/nbd-wtf/go-nostr"
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"github.com/nbd-wtf/go-nostr/nip19"
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)
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type ProfileMetadata struct {
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pubkey string
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Name string `json:"name,omitempty"`
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DisplayName string `json:"display_name,omitempty"`
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About string `json:"about,omitempty"`
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Website string `json:"website,omitempty"`
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Picture string `json:"picture,omitempty"`
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Banner string `json:"banner,omitempty"`
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NIP05 string `json:"nip05,omitempty"`
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LUD16 string `json:"lud16,omitempty"`
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}
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func (p ProfileMetadata) Npub() string {
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v, _ := nip19.EncodePublicKey(p.pubkey)
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return v
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}
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func (p ProfileMetadata) Nprofile(ctx context.Context, sys *System, nrelays int) string {
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v, _ := nip19.EncodeProfile(p.pubkey, sys.FetchOutboxRelays(ctx, p.pubkey))
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return v
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}
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func FetchProfileMetadata(ctx context.Context, pool *nostr.SimplePool, pubkey string, relays ...string) ProfileMetadata {
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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ch := pool.SubManyEose(ctx, relays, nostr.Filters{
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{
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Kinds: []int{nostr.KindProfileMetadata},
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Authors: []string{pubkey},
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Limit: 1,
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},
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})
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for ie := range ch {
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if m, err := ParseMetadata(ie.Event); err == nil {
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m.pubkey = pubkey
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return *m
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}
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}
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return ProfileMetadata{pubkey: pubkey}
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}
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func ParseMetadata(event *nostr.Event) (*ProfileMetadata, error) {
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if event.Kind != 0 {
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return nil, fmt.Errorf("event %s is kind %d, not 0", event.ID, event.Kind)
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}
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var meta ProfileMetadata
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if err := json.Unmarshal([]byte(event.Content), &meta); err != nil {
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cont := event.Content
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if len(cont) > 100 {
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cont = cont[0:99]
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}
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return nil, fmt.Errorf("failed to parse metadata (%s) from event %s: %w", cont, event.ID, err)
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}
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return &meta, nil
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}
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