'use strict';

const config = require('config');
const yargs = require('yargs');

function getArgs() {
    const args = yargs
        .command('npm start -- --user <username>')
        .option('log-level', {
            alias: 'level',
            describe: 'CLI log verbosity',
            type: 'string',
            default: config.logger.level,
        })
        .option('interval', {
            describe: 'Minimum wait time between HTTP requests',
            type: 'number',
            default: config.limiter.interval,
        })
        .option('concurrency', {
            describe: 'Maximum HTTP requests pending at the same time',
            type: 'number',
            default: config.limiter.concurrency,
        })
        .option('users', {
            alias: 'user',
            describe: 'Reddit usernames to fetch posts from',
            type: 'array',
        })
        .option('file-users', {
            describe: 'Load reddit usernames from file',
            type: 'string',
        })
        .option('posts', {
            alias: 'post',
            describe: 'Reddit post IDs to fetch',
            type: 'array',
        })
        .option('file-posts', {
            describe: 'Load reddit post IDs from file',
            type: 'string',
        })
        .option('direct', {
            describe: 'Get content directly from imgur and other hosts',
            type: 'array',
            alias: 'fetch',
        })
        .option('file-direct', {
            describe: 'Load direct content URLs from file',
            type: 'string',
            alias: 'file-fetch',
        })
        .option('label', {
            describe: 'Arbitrary variable made available in path patterns. Useful to organize files from a URL lists in directory.',
            type: 'string',
        })
        .option('base', {
            describe: 'Alternative base path, overriding both the default posts and direct base paths.',
            type: 'string',
        })
        .option('limit', {
            describe: 'Maximum amount of posts to fetch per supplied user (!), after filtering out ignored, cross- and reposts',
            type: 'number',
            default: config.fetch.limit,
        })
        .option('sort', {
            describe: 'Property to sort posts by',
            choices: ['new', 'top', 'hot', 'controversial'],
            default: config.fetch.sort,
        })
        .option('ignore', {
            describe: 'Ignore posts with any of these properties',
            type: 'array',
            choices: ['pinned', 'stickied', 'hidden', 'spoiler', 'over_18'],
        })
        .option('file-ignore', {
            describe: 'Ignore the host IDs in this file',
            type: 'string',
        })
        .option('include', {
            describe: 'Include only these sources',
            type: 'array',
        })
        .option('exclude', {
            describe: 'Do not include these sources',
            type: 'array',
        })
        .option('after', {
            describe: 'Only include posts after this date (YYYY-MM-DD, optionally HH:mm)',
        })
        .option('before', {
            describe: 'Only include posts before this date (YYYY-MM-DD, optionally HH:mm)',
        })
        .option('after-indexed', {
            alias: 'after-index',
            describe: 'Only include posts after the oldest or the latest entry in the index',
            choices: ['oldest', 'latest'],
        })
        .option('before-indexed', {
            alias: 'before-index',
            describe: 'Only include posts before the oldest or the latest entry in the index',
            choices: ['oldest', 'latest'],
        })
        .option('redownload', {
            alias: 'force',
            describe: 'Ignore index file and force a redownload of everything in the selection. Does not affect [before|after]-indexed',
            type: 'boolean',
        })
        .option('redownload-profile', {
            alias: 'force-profile',
            describe: 'Ignore index file and force a redownload of the profile image and description',
            type: 'boolean',
        })
        .option('index-ignored', {
            describe: 'Add posts specified to be ignored to the index file, but don\'t download them',
            type: 'boolean',
        })
        .option('watch', {
            describe: 'Keep the process running and periodically check for new posts',
            type: 'boolean',
        })
        .option('archives', {
            describe: 'Search archives for deleted posts',
            type: 'boolean',
            default: config.fetch.archives.search,
        })
        .argv;

    return {
        ...args,
        after: args.after ? new Date(args.after) : null,
        before: args.before ? new Date(args.before) : null,
    };
}

module.exports = getArgs;