pandora/utils.js

81 lines
2.8 KiB
JavaScript

// Helper utilities and algorithms
/**
* Format timestamps (supports Unix epoch seconds/ms, strings and ISO dates)
* @param {string|number|Date} dateVal
* @returns {string} Formatted HH:MM AM/PM string
*/
export function formatTime(dateVal) {
if (!dateVal) return '';
let date;
if (typeof dateVal === 'number') {
date = new Date(dateVal < 10000000000 ? dateVal * 1000 : dateVal);
} else if (typeof dateVal === 'string' && /^\d+$/.test(dateVal)) {
const num = parseInt(dateVal, 10);
date = new Date(num < 10000000000 ? num * 1000 : num);
} else {
date = new Date(dateVal);
}
let hours = date.getHours();
let minutes = date.getMinutes();
const ampm = hours >= 12 ? 'PM' : 'AM';
hours = hours % 12;
hours = hours ? hours : 12;
minutes = minutes < 10 ? '0' + minutes : minutes;
return `${hours}:${minutes} ${ampm}`;
}
/**
* Adjust outgoing messages backdated behind incoming messages due to clock drift.
* Uses a 30-second sliding bubble-sort window.
* @param {Array} messages List of raw messages from WAHA
* @returns {Array} Compensated chronological message array
*/
export function compensateMessageOrdering(messages) {
if (!Array.isArray(messages)) return [];
// Convert timestamps to numeric milliseconds for stable comparison
const msgs = messages.map(m => {
let t = m.timestamp;
if (typeof t === 'number') {
if (t < 10000000000) t = t * 1000;
} else {
t = new Date(t).getTime();
}
return { ...m, _time: t };
});
// Initial chronological sort
msgs.sort((a, b) => a._time - b._time);
// Apply drift bubble adjustments
let changed = true;
while (changed) {
changed = false;
for (let i = 0; i < msgs.length - 1; i++) {
const current = msgs[i];
const next = msgs[i + 1];
const timeDiff = next._time - current._time;
// Swap if an outgoing message is sorted before an incoming message within a 30-sec window
if (current.fromMe && !next.fromMe && timeDiff >= 0 && timeDiff <= 30000) {
msgs[i] = next;
msgs[i + 1] = current;
// Advance the outgoing message's timestamp to be exactly 1 second after the incoming one
current._time = next._time + 1000;
if (typeof current.timestamp === 'number') {
current.timestamp = Math.floor(current._time / 1000);
} else {
current.timestamp = new Date(current._time).toISOString();
}
changed = true;
}
}
}
// Clean up temporary property
return msgs.map(({ _time, ...m }) => m);
}