var fs = require('fs').promises;

function genFile() {

    let content = '000010000112022030S2300420300001AWM001000604'
    let thisFile = ''

    for(let i = 30000; i <= 100000; i++) {
        if(i%200 == 0 || i == 30000) {
            thisFile = getFileName(i)
            console.log(thisFile)

        }

        if(i == 100000) {
            console.log("9999" + paddy(i,6) + content);
            continue
        }

        console.log("99999" + paddy(i,5) + content);

    }
}

function getFileName(i) {
    if(i+200 == 100000) {
        return "99999" + paddy(i+1,5) + "-" + paddy(i+200,6) + ".inv"

    }

    return "99999" + paddy(i+1,5) + "-" + paddy(i+200,5) + ".inv"
}

function paddy(num, padlen, padchar) {
    var pad_char = typeof padchar !== 'undefined' ? padchar : '0';
    var pad = new Array(1 + padlen).join(pad_char);
    return (pad + num).slice(-pad.length);

}

genFile()