import * as path from 'path';
import * as http from 'https';
import * as fs from "fs";

//修正d.ts中类型定义出现错误的问题,临时修复,因为d.ts并不能完全快速的合并我们的类型修复PR.

/**
 * 下载文件到指定的文件地址
 *
 * @param {string} url
 * @param {string} filePath
 */
function downLoadFile(url: string, filePath: string)
{
    if (fs.existsSync(filePath))
        fs.unlinkSync(filePath);
    else
        fs.mkdirSync(path.dirname(filePath));
    let file = fs.createWriteStream(filePath);
    http.get(url, function (response)
    {
        response.pipe(file);
    });
}

/**
 * 拷贝文件.
 *
 * @param {*} source 目标文件的地址
 * @param {*} targetFile 拷贝到新的地址
 */
function copyFileSync(source: string, targetFile: string)
{
    //if target is a directory a new file with the same name will be created
    if (fs.existsSync(targetFile))
    {
        if (fs.lstatSync(targetFile).isDirectory())
        {
            targetFile = path.join(targetFile, path.basename(source));
        }
    }
    fs.writeFileSync(targetFile, fs.readFileSync(source));
    console.log('targetFile: ', targetFile);
}

function copyFolderRecursiveSync(source, target)
{
    let files = [];
    //check if folder needs to be created or integrated
    let targetFolder = path.join(target, path.basename(source));
    if (!fs.existsSync(targetFolder))
    {
        fs.mkdirSync(targetFolder);
    }
    //copy
    if (fs.lstatSync(source).isDirectory())
    {
        files = fs.readdirSync(source);
        files.forEach(function (file)
        {
            let curSource = path.join(source, file);
            if (fs.lstatSync(curSource).isDirectory())
            {
                copyFolderRecursiveSync(curSource, targetFolder);
            } else
            {
                copyFileSync(curSource, targetFolder);
            }
        });
    }
}

// copyFolderRecursiveSync("./@types/", "./node_modules/");

function downloadTypes(downFiles)
{
    let filePath = path.resolve("./node_modules/@types/" + downFiles.name) + "\\";
    console.log('filePath: ', filePath);
    for (let file of downFiles.files)
    {
        console.log(downFiles.urlPath + file);
        try
        {
            downLoadFile(downFiles.urlPath + file, filePath + file);
        }
        catch (error)
        {
            console.log('error: ', error);
        }
    }

}

downloadTypes({
    name: "three",
    urlPath: "https://gitee.com/BearCAD/DefinitelyType2/raw/master/three/",
    files: [
        // "index.d.ts",
        "three-core.d.ts",
        // "three-outlinepass.d.ts",
        // "three-smaapass.d.ts"
    ]
});


downloadTypes({
    name: "jquery",
    urlPath: "https://gitee.com/BearCAD/DefinitelyType2/raw/master/jquery/",
    files: [
        "index.d.ts"
    ]
});