meblog/lib/core/RssGenerator.js

A simple blog engine for personal blogging

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const fs_1 = tslib_1.__importDefault(require("fs"));
const path_1 = tslib_1.__importDefault(require("path"));
const ConfigHolder_1 = tslib_1.__importDefault(require("./ConfigHolder"));
class RssGenerator extends ConfigHolder_1.default {
    dataSource;
    constructor(dataSource) {
        super(dataSource.config);
        this.dataSource = dataSource;
    }
    generate(outputDir, locale) {
        if (!fs_1.default.existsSync(outputDir)) {
            fs_1.default.mkdirSync(outputDir, { recursive: true });
        }
        const filePath = path_1.default.join(outputDir, './rss.xml');
        const content = this.generateRssContent(locale);
        fs_1.default.writeFileSync(filePath, content);
    }
    generateRssContent(locale) {
        return ('<rss version="2.0">' +
            '<channel>' +
            `<title>${this.getI18nFallbackToConfig('siteName', locale)}</title>` +
            `<link>${this.config.baseUrl}</link>` +
            `<description>${this.getI18nFallbackToConfig('siteDescription', locale)}</description>` +
            (locale ? `<language>${locale}</language>` : '') +
            this.generateItemFeeds(locale) +
            '</channel>' +
            '</rss>');
    }
    generateItemFeeds(locale) {
        return this.dataSource
            .getPosts(locale)
            .map((p) => this.getItemFeed(p))
            .join('');
    }
    getItemFeed(post) {
        const postUrl = this.postRootUrl(post);
        return ('<item>' +
            `<title>${post.title}</title>` +
            `<link>${postUrl}</link>` +
            `<description><![CDATA[${post.excerpt}]]></description>` +
            `<guid>${postUrl}</guid>` +
            `<pubDate>${this.formatRFC822DateTime(post.publishedAt)}</pubDate>` +
            this.getItemCategories(post) +
            '</item>');
    }
    getItemCategories(post) {
        return post.tags.map((tag) => `<category>${tag}</category>`).join('');
    }
}
exports.default = RssGenerator;