hexo-theme-async/scripts/helper/list_archives.js

🎈 A simple, lightweight Hexo theme

'use strict';

const { url_for } = require('hexo-util');

function listArchivesHelper(options = {}) {
	const { config } = this;
	const archiveDir = config.archive_dir;
	const { timezone } = config;
	const lang = 'ZH-cn';
	let { format } = options;
	const type = options.type || 'monthly';
	const { style = 'list', transform, separator = ', ' } = options;
	const showCount = Object.prototype.hasOwnProperty.call(options, 'show_count') ? options.show_count : true;
	const className = options.class || 'archive';
	const ulClassName = options.ulclass || 'ul';
	const liClassName = options.liclass || 'li';
	const order = options.order || -1;
	const compareFunc = type === 'monthly' ? (yearA, monthA, yearB, monthB) => yearA === yearB && monthA === monthB : (yearA, _monthA, yearB, _monthB) => yearA === yearB;

	let result = '';

	if (!format) {
		format = type === 'monthly' ? 'MMMM YYYY' : 'YYYY';
	}

	const posts = this.site.posts.sort('date', order);
	if (!posts.length) return result;

	const data = [];
	let length = 0;

	posts.forEach(post => {
		// Clone the date object to avoid pollution
		let date = post.date.clone();

		if (timezone) date = date.tz(timezone);

		const year = date.year();
		const month = date.month() + 1;
		const lastData = data[length - 1];

		if (!lastData || !compareFunc(lastData.year, lastData.month, year, month)) {
			if (lang) date = date.locale(lang);
			const name = date.format(format);
			length = data.push({
				name,
				year,
				month,
				count: 1,
			});
		} else {
			lastData.count++;
		}
	});

	const link = item => {
		let url = `${archiveDir}/${item.year}/`;

		if (type === 'monthly') {
			if (item.month < 10) url += '0';
			url += `${item.month}/`;
		}

		return url_for.call(this, url);
	};

	if (style === 'list') {
		result += `<ul class="${ulClassName}-list">`;

		for (let i = 0, len = data.length; i < len; i++) {
			const item = data[i];

			result += `<li class="${liClassName}-list-item">`;

			result += `<a class="${className}-list-link" href="${link(item)}">`;
			result += transform ? transform(item.name) : item.name;
			result += '</a>';

			if (showCount) {
				result += `<span class="${className}-list-count">（${item.count}）</span>`;
			}

			result += '</li>';
		}

		result += '</ul>';
	} else {
		for (let i = 0, len = data.length; i < len; i++) {
			const item = data[i];

			if (i) result += separator;

			result += `<a class="${className}-tag-link" href="${link(item)}">`;
			result += transform ? transform(item.name) : item.name;

			if (showCount) {
				result += `<span class="${className}-tag-count">（${item.count}）</span>`;
			}

			result += '</a>';
		}
	}

	return result;
}
hexo.extend.helper.register('list_archives', listArchivesHelper);