'use strict';

const Promise = require('bluebird');
const config = require('config');
const getArchivePostIds = require('../archives/getArchivePostIds.js');
const curateUser = require('../curate/user.js');
const saveProfileDetails = require('../save/profileDetails.js');

const getUser = async (username, reddit) => {
    try {
        const user = await reddit.getUser(username).fetch();

        return curateUser(user);
    } catch(error) {
        console.log('\x1b[31m%s\x1b[0m', `Failed to fetch reddit user '${username}': ${error.message} (https://reddit.com/user/${username})`);

        return {
            name: username,
            fallback: true
        };
    }
};

const getPosts = async (username, reddit, args) => {
    try {
        return await reddit.getUser(username).getSubmissions({
            sort: args.sort,
            limit: Infinity
        });
    } catch(error) {
        console.log('\x1b[31m%s\x1b[0m', `Failed to fetch posts from reddit user '${username}': ${error.message} (https://reddit.com/user/${username})`);

        return [];
    }
};

const getUserPostsWrap = (reddit, args) => users => Promise.props(Object.entries(users).reduce((userPosts, [username, user]) => {
    userPosts[username] = (async () => {
        const [user, posts] = await Promise.all([
            getUser(username, reddit),
            getPosts(username, reddit, args)
        ]);

        if(user) {
            saveProfileDetails(user);
        }

        if(args.archives) {
            const postIds = await getArchivePostIds(username, posts.map(post => post.id));
            const archivedPosts = await Promise.all(postIds.map(postId => reddit.getSubmission(postId).fetch()));

            posts.push(...archivedPosts);
        }

        return {...user, posts};
    })();

    return userPosts;
}, {}));

module.exports = getUserPostsWrap;