const { getRandomOne, createDir, createFile, dyids_dir } = require('../utils');
const config = require('../data/config');

let global_var = {
    inner: {},
    get(key) {
        return this.inner[key];
    },
    set(key, value) {
        this.inner[key] = value;
    },
    /**
     * 全局变量初始化
     * 更新config
     * @param {string} cookie
     * @param {string} num
     */
    async init(cookie, num) {
        if (cookie) {
            const
                key_map = new Map([
                    ['DedeUserID', 'myUID'],
                    ['bili_jct', 'csrf']]),
                LotteryOrderMap = new Map([
                    [0, 'UIDs'],
                    [1, 'TAGs'],
                    [2, 'Articles'],
                    [3, 'APIs'],
                    [4, 'TxT'],
                ]);

            config.updata(num);

            if (!/buvid3/.test(cookie)) {
                const charset = '0123456789ABCDEF'.split('');
                const buvid3 = 'x'.repeat(8).split('').map(() => getRandomOne(charset)).join('')
                    + '-'
                    + 'x'.repeat(4).split('').map(() => getRandomOne(charset)).join('')
                    + '-'
                    + 'x'.repeat(4).split('').map(() => getRandomOne(charset)).join('')
                    + '-'
                    + 'x'.repeat(4).split('').map(() => getRandomOne(charset)).join('')
                    + '-'
                    + 'x'.repeat(17).split('').map(() => getRandomOne(charset)).join('')
                    + 'infoc';
                this.set('cookie', cookie + ';' + buvid3);
            } else {
                this.set('cookie', cookie);
            }

            cookie.split(/\s*;\s*/).forEach(item => {
                const _item = item.split('=');
                if (key_map.has(_item[0]))
                    this.set(key_map.get(_item[0]), _item[1]);
            });

            const { LotteryOrder } = config;
            this.set('Lottery',
                LotteryOrder
                    .map(it => LotteryOrderMap.get(it))
                    .filter(it => typeof it === 'string')
                    .map(lottery_option => config[lottery_option].map(it => [lottery_option, it]))
                    .flat()
            );
        }
        await createDir('dyids');
        await createFile(dyids_dir, num < 2 ? 'dyid.txt' : `dyid${num}.txt`, '', 'a');
    }
};


module.exports = global_var;