tningjs/sam-and-his-friends

/**
 * @module utils/formatters/posts-formatter
 */

const { getActiveUserFromCache } = require('../../data/cache/active-users');
const { getPostFromCache } = require('../../data/cache/single-post');
const { tagsFormatter } = require('../../utils/formatters/tags-formatter');
/**
 * Format post from API data for rendering
 * @param {object} post - Data from API
 * @returns {object} Formatted post
 */
async function postFormatter(topic) {
    // The first poster is the topic author
    const poster = await getActiveUserFromCache(topic.posters[0].user_id);
    const tags = tagsFormatter(topic.category_id);

    let content = topic.excerpt;
    const cachedPost = await getPostFromCache(topic.id);
    if (content) {
        // If topic.excerpt exists, then this topic is pinned in renzhen1024
        tags.unshift({ name: '置顶', color: '#00E6E6' });
    } else {
        content = cachedPost && cachedPost.excerpt;
    }

    return {
        content,
        tags,
        id: topic.id,
        title: topic.title,
        date: topic.created_at,
        name: poster.name || poster.username,
        authorImageUrl: poster.userImageUrl,
        category: '山姆哥',
        numLikes: topic.like_count,
        numComments: topic.posts_count + topic.reply_count,
        isReaderMode: false,
        isPinned: !!topic.excerpt,
        heroImage: cachedPost.heroImage,
    };
}

/**
 * Format array of posts from API data for rendering, sort based on update time
 * @param {array} posts - Array of Posts
 * @returns {array} Formatted mintPosts array
 */
exports.postsFormatter = async function postsFormatter(posts) {
    return Promise.all(posts.map(post => postFormatter(post))).then(mappedPosts =>
        mappedPosts
            .sort((a, b) => b.date - a.date)
            .sort((a, b) => {
                if (a.isPinned && !b.isPinned) {
                    return -1;
                }

                if (!a.isPinned && b.isPinned) {
                    return 1;
                }

                return 0;
            })
    );
};