79 lines
2.1 KiB
Rust
79 lines
2.1 KiB
Rust
use chrono::{Duration, Local, TimeZone};
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use nostr_sdk::prelude::*;
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use std::{
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collections::HashSet,
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hash::{DefaultHasher, Hash, Hasher},
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};
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pub fn room_hash(tags: &Tags) -> u64 {
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let pubkeys: Vec<PublicKey> = tags.public_keys().copied().collect();
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let mut hasher = DefaultHasher::new();
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// Generate unique hash
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pubkeys.hash(&mut hasher);
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hasher.finish()
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}
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pub fn compare<T>(a: &[T], b: &[T]) -> bool
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where
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T: Eq + Hash,
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{
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let a: HashSet<_> = a.iter().collect();
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let b: HashSet<_> = b.iter().collect();
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a == b
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}
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pub fn shorted_public_key(public_key: PublicKey) -> String {
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let pk = public_key.to_string();
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format!("{}:{}", &pk[0..4], &pk[pk.len() - 4..])
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}
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pub fn show_npub(public_key: PublicKey, len: usize) -> String {
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let bech32 = public_key.to_bech32().unwrap_or_default();
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let separator = " ... ";
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let sep_len = separator.len();
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let chars_to_show = len - sep_len;
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let front_chars = (chars_to_show + 1) / 2; // ceil
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let back_chars = chars_to_show / 2; // floor
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format!(
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"{}{}{}",
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&bech32[..front_chars],
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separator,
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&bech32[bech32.len() - back_chars..]
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)
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}
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pub fn ago(time: u64) -> String {
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let now = Local::now();
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let input_time = Local.timestamp_opt(time as i64, 0).unwrap();
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let diff = (now - input_time).num_hours();
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if diff < 24 {
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let duration = now.signed_duration_since(input_time);
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format_duration(duration)
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} else {
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input_time.format("%b %d").to_string()
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}
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}
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pub fn format_duration(duration: Duration) -> String {
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if duration.num_seconds() < 60 {
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"now".to_string()
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} else if duration.num_minutes() == 1 {
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"1m".to_string()
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} else if duration.num_minutes() < 60 {
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format!("{}m", duration.num_minutes())
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} else if duration.num_hours() == 1 {
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"1h".to_string()
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} else if duration.num_hours() < 24 {
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format!("{}h", duration.num_hours())
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} else if duration.num_days() == 1 {
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"1d".to_string()
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} else {
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format!("{}d", duration.num_days())
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}
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}
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