forked from coracle/zooid
Jon Staab
78 lines
1.0 KiB
Go
78 lines
1.0 KiB
Go
package zooid
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import (
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"math/rand"
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"strings"
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"fiatjaf.com/nostr"
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)
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const (
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AUTH_JOIN = 28934
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AUTH_INVITE = 28935
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)
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func First[T any](s []T) T {
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if len(s) == 0 {
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var zero T
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return zero
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}
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return s[0]
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}
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func Keys[K comparable, V any](m map[K]V) []K {
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ks := make([]K, len(m))
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i := 0
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for k := range m {
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ks[i] = k
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i++
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}
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return ks
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}
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func Filter[T any](ss []T, test func(T) bool) (ret []T) {
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for _, s := range ss {
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if test(s) {
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ret = append(ret, s)
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}
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}
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return
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}
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const letters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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func RandomString(n int) string {
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b := make([]byte, n)
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for i := range b {
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b[i] = letters[rand.Intn(len(letters))]
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}
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return string(b)
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}
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func Split(s string, delim string) []string {
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if s == "" {
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return []string{}
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} else {
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return strings.Split(s, delim)
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}
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}
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func HasTag(tags nostr.Tags, key string) bool {
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for _, v := range tags {
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if len(v) >= 1 && v[0] == key {
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return true
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}
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}
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return false
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}
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func IsEmptyEvent(event nostr.Event) bool {
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var zeroID nostr.ID
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return event.ID == zeroID
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}
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