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41 lines
1.7 KiB
JavaScript
41 lines
1.7 KiB
JavaScript
const md5 = require('./md5');
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exports.gravatar_url = function (email, size) {
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return `//gravatar.loli.net/avatar/${md5((email || '').toString().trim().toLowerCase())}?d=mm&s=${size}`;
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};
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exports.datetime_span = function (dt, relative = true, format = '%Y-%m-%d %H:%M:%S') {
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if (dt.generationTime) dt = new Date(dt.generationTime * 1000);
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else if (typeof dt == 'number' || typeof dt == 'string') dt = new Date(dt);
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return '<span class="time{0}" data-timestamp="{1}">{2}</span>'.format(
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relative ? ' relative' : '',
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dt.getTime() / 1000,
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dt.format(format)
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);
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};
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exports.paginate = function* (page, num_pages) {
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let radius = 2, first, last;
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if (page > 1) {
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yield ['first', 1];
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yield ['previous', page - 1];
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}
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if (page <= radius) [first, last] = [1, Math.min(1 + radius * 2, num_pages)];
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else if (page >= num_pages - radius) [first, last] = [Math.max(1, num_pages - radius * 2), num_pages];
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else[first, last] = [page - radius, page + radius];
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if (first > 1) yield ['ellipsis', 0];
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for (let page0 = first; page0 < last + 1; page0++) {
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if (page0 != page) yield ['page', page0];
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else yield ['current', page];
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}
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if (last < num_pages) yield ['ellipsis', 0];
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if (page < num_pages) yield ['next', page + 1];
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yield ['last', num_pages];
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};
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exports.format_size = function (size, base = 1) {
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size *= base;
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let unit = 1024;
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let unit_names = ['Bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
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for (let unit_name of unit_names) {
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if (size < unit) return '{0} {1}'.format(Math.round(size), unit_name);
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size /= unit;
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}
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return '{0} {1}'.format(Math.round(size * unit), unit_names[unit_names.length - 1]);
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}; |