91 lines
2.6 KiB
JavaScript
91 lines
2.6 KiB
JavaScript
(function () {
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'use strict';
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var PRESETS = [
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'today',
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'yesterday',
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'last_7_days',
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'last_30_days',
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'this_month',
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'last_month',
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'custom',
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];
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function pad(value) {
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return String(value).padStart(2, '0');
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}
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function dateText(date) {
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return (
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date.getFullYear() +
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'-' +
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pad(date.getMonth() + 1) +
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'-' +
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pad(date.getDate())
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);
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}
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function localDate(value) {
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if (value instanceof Date) {
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return new Date(
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value.getFullYear(),
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value.getMonth(),
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value.getDate()
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);
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}
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var match = String(value || '').match(/^(\d{4})-(\d{2})-(\d{2})$/);
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if (!match) return null;
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var date = new Date(
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Number(match[1]),
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Number(match[2]) - 1,
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Number(match[3])
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);
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return Number.isNaN(date.getTime()) ? null : date;
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}
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function addDays(date, count) {
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return new Date(
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date.getFullYear(),
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date.getMonth(),
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date.getDate() + count
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);
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}
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function createRange(preset, options) {
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var name = PRESETS.indexOf(preset) >= 0 ? preset : 'today';
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var opts = options || {};
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var now = localDate(opts.now || new Date());
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var start = now;
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var end = now;
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if (name === 'yesterday') start = end = addDays(now, -1);
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else if (name === 'last_7_days') start = addDays(now, -6);
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else if (name === 'last_30_days') start = addDays(now, -29);
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else if (name === 'this_month')
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start = new Date(now.getFullYear(), now.getMonth(), 1);
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else if (name === 'last_month') {
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start = new Date(now.getFullYear(), now.getMonth() - 1, 1);
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end = new Date(now.getFullYear(), now.getMonth(), 0);
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} else if (name === 'custom') {
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start = localDate(opts.start);
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end = localDate(opts.end);
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if (!start || !end || start.getTime() > end.getTime()) {
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throw new Error('Invalid custom date range');
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}
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}
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// UI 和 API 都使用包含首尾的自然日；在线时长等跨日指标由服务端按业务时区切日，前端不自行累计秒数。
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return Object.freeze({
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preset: name,
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startDate: dateText(start),
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endDate: dateText(end),
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});
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}
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window.HyGuild = window.HyGuild || {};
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window.HyGuild.dateRange = {
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presets: Object.freeze(PRESETS.slice()),
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create: createRange,
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};
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})();
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