jschan - Anonymous imageboard software. Classic look, modern features and feel. Works without JavaScript and supports Tor, I2P, Lokinet, etc.
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'use strict';
const YEAR = 31536000000
, MONTH = 2629800000
, WEEK = 604800000
, DAY = 86400000
, HOUR = 3600000
, MINUTE = 60000
, SECOND = 1000;
module.exports = {
YEAR, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND,
//ms until next hour
'nextHour': () => {
return 3600000 - new Date().getTime() % 3600000;
},
//string representing how long since date A to date B
'relativeString': (now, relativeTo, locals) => {
let difference = now.getTime() - relativeTo.getTime();
let amount = 0;
let unit = '';
let isFuture = false;
if (difference < 0) {
difference = Math.abs(difference);
isFuture = true;
}
if (difference < MINUTE) {
return locals.__('Now');
} else if (difference < MINUTE*59.5) {
amount = Math.round(difference / MINUTE);
unit = 'minute';
} else if (difference < HOUR*23.5) {
amount = Math.round(difference / HOUR);
unit = 'hour';
} else if (difference < DAY*6.5) {
amount = Math.round(difference / DAY);
unit = 'day';
} else if (difference < WEEK*3.5) {
amount = Math.round(difference / WEEK);
unit = 'week';
} else if (difference < MONTH*11.5) {
amount = Math.round(difference / MONTH);
unit = 'month';
} else {
amount = Math.round(difference / YEAR);
unit = 'year';
}
return locals.__n(`%s ${unit} ${isFuture ? 'from now' : 'ago'}`, amount);
},
'relativeColor': (now, relativeTo) => {
const difference = now.getTime() - relativeTo.getTime();
const minutesAgo = Math.floor(difference / MINUTE);
let r = 0
, g = 0
, b = 0;
if (difference < MINUTE) {
g = 0.7;
b = 1;
} else if (difference < HOUR) {
r = (minutesAgo / 60) * 0.5;
g = 1;
} else if (difference < DAY) {
r = 0.5 + (minutesAgo / 1440) * 0.5;
g = 1;
} else if (difference < WEEK) {
g = 1 - (minutesAgo / 10080) * 0.5;
r = 1;
} else if (difference < MONTH) {
g = 0.5 - (minutesAgo / 43830) * 0.5;
r = 1;
} else if (difference < YEAR) {
r = 1 - (minutesAgo / 525960);
} //else, leave it black for >1 year
r = (Math.round(r*255*0.85).toString(16)).padStart(2, '0');
g = (Math.round(g*255*0.85).toString(16)).padStart(2, '0');
b = (Math.round(b*255).toString(16)).padStart(2, '0');
return `#${r}${g}${b}`;
},
'durationString': (ms) => {
const durString = new Date(ms).toISOString();
if (ms < DAY) {
return durString.substr(11,8).replace(/^00:/, '');
} else {
const hours = Math.floor(ms/HOUR);
return `${hours}:${durString.substring(14,19)}`;
}
},
'timeDiffString': (label, end) => {
return (`${end[0] > 0 ? end[0]+'s' : ''}${Math.trunc(end[1]/1000000)}ms `).padStart(9) + label;
},
};