@fanyinghao/crust-cli/src/login.js

The Crust command-line interface (Crust CLI) is a set of commands used to access Crust Network resources

const fs = require('fs');
const { seedsPath } = require('./consts');

module.exports = {
    default: async (seeds) => {
        try {
            // 1. Judge legality of the seeds
            const seedsVec = seeds.split(' ');
            if (seedsVec.length !== 12 && seedsVec.length !== 24) {
                console.error('Seeds illegal, check it again');
                return;
            }
            
            // 2. Write into local file
            fs.writeFileSync(seedsPath, seeds);
            
            // 3. Read it and compare with input seeds
            const seedsLocal = fs.readFileSync(seedsPath, 'utf8');

            if (seedsLocal === seeds) {
                console.log('Login success!');
            } else {
                console.error('Save seeds error, do it again.');
            }
        } catch (e) {
            console.error(`Login failed with error: ${e}`);
        }
    }
}