simplest bundler

// import "fs";

var fs = require("fs");

const extensions = ['.js', '.ts']

integrate("base.ts", 'result.js')



function integrate(from, to){

    var content = fs.readFileSync(from).toString();

    content = removeLazy(content)

    var content = importInsert(content);

    fs.writeFileSync(to, content)
}





function removeLazy(content){

    return content.replace(/\/\*-lazy\*\/[\s\S]*?\/\*lazy-\*\//, '');
}

function importInsert(content){

    let regex = /import \* as (?<module>\w+) from \"\.\/(?<filename>\w+)\"/g;
    return content.replace(regex, packer)

}

function packer(match, module, fileName, offset, source){

    for(let ext of extensions){
        if (fs.existsSync(fileName + ext))
        {
            fileName = fileName + ext;
            break;
        }
    }

    var content = fs.readFileSync(fileName).toString()

    // content = Convert(content)



    return content;
}