#!/usr/bin/env node

const program = require('commander');
const chalk = require('chalk');
const rm = require('rimraf');
const log = require('../lib/log').log;
const downloadFromGit = require('download-git-repo');
// const ghdownload = require('github-download');
const inquirer = require('inquirer');
const ora = require('ora');
const path = require('path');
const fs = require('fs');
const cp = require('child_process');
const checkVersion = require('../lib/check-version');
const writeIgnore = require('../lib/write-ignore.js');
const writeLog = require('../lib/write-logo.js');

let config; // 存放用户输入的配置

program
    // .option('-i, --intranet', '使用内网地址')
    .option('-g, --git', '初始化git')
    .parse(process.argv);

/**
 * 初始化git
 */
const initGit = () => {
    cp.execSync('git init', {
        cwd: config.pathName
    })
    cp.execSync(`git remote add origin ${config.gitPath}`, {
        cwd: config.pathName
    });
}

/**
 * 下载之后做的事情
 * @param {String} dist 项目目录
 */
const afterDownload = () => {
    writeIgnore(config.pathName);
    writeLog(config.pathName, config.name);
    if (program.git) {
        initGit();
    }

    let i = 1;
    log();
    log('已完成项目的初始化:', 'green');
    log();
    log(`    ${i++}.在${config.pathName}新建了项目`, 'white');
    if (program.git) {
        log(`    ${i++}.在${config.pathName}初始化了git`, 'white');      
    }
    log();
    log('接下来你需要：', 'white');
    log();
    log(`    1.cd ${config.name}`, 'white');
    log('    2.npm install（或者 yarn install, cnpm install)', 'white');
    log();
    log('然后你可以：', 'white');
    log();
    log('    - tofu server                                     运行开发服务', 'white');
    log('    - tofu build                                      打包项目', 'white');
    log('    - tofu update                                     更新框架以及命令行工具至最新版本', 'white');
    log();
}

/**
 * 下载项目至指定文件
 * @param {String} source git源
 * @param {String} dist 项目目录
 * @param {Boolean} clone 是否采用git clone来下载
 */
const download = (source, dist, clone) => {
    const spinner = ora('downloading template');
    spinner.start();

    // if (program.intranet) {
    //     ghdownload(source, dist)
    //     .on('error', (err) => {
    //         if (err) throw err;
    //     })
    //     .on('end', () => {
    //         spinner.stop();

    //         afterDownload();
    //     });
    // } else {
        downloadFromGit(source, dist, { clone }, err => {
            spinner.stop();

            if (err) throw err;

            afterDownload();
        });
    // }
}

const initConfig = async () => {
    let name = await inquirer.prompt({
        name: 'name',
        message: '请输入项目名',
        validate (name) {
            let regExp = /^[\u4E00-\u9FA5a-zA-Z0-9\-\_\$]+$/;
            if (regExp.test(name)) {
                return true;
            } else {
                return "请输入正确的项目名，只允许输入汉字，英文，数字，和符号（'_', '-', '$'）"
            }
        }
    });

    let template = await inquirer.prompt({
        name: 'template',
        message: '请选择新建的模板类型',
        type: 'list',
        default: 0,
        choices: [
            'PC'
        ]
    });

    const dist = path.resolve(process.cwd(), name.name);
    let pathName = await inquirer.prompt({
        name: 'path',
        message: `将会把项目新建在：${dist}，确定吗？`,
        type: 'confirm'
    }).then(res => {
        if (res.path) {
            return dist;
        } else {
            return inquirer.prompt({
                name: 'path',
                message: '请输入项目创建的地址（相对当前路径）：',
                filter (input) {
                    return require('path').resolve(process.cwd(), input);
                }
            })
        }
    })

    let gitPath;
    if (program.git) {
        gitPath = await inquirer.prompt({
            name: 'gitPath',
            message: `请输入项目的git地址`,
        })
    }

    return Object.assign({ pathName }, template, gitPath, name);
}

const init = async () => {
    config = await initConfig();

    // 如果存在文件夹，将会删除当前文件夹
    rm(config.pathName, err => {
        if (err) throw err;

        switch (config.template) {
            case 'PC':
                // if (program.intranet) {
                //     download('git@192.168.0.192:ishangzu_web/tofu-boilerplate.git', config.pathName);
                // } else {
                    download('ishangzu-fe/tofu-boilerplate', config.pathName, false);
                // }
                break;
            default:
                break;
        }
    })
}

require('../lib/check-version')().then(res => {
    init();
});