import { Parser } from "../parser/Parser";
import * as fs from "fs";

export function testFile(fileName: string) {
    let fileParser = new Parser();
    console.log(`Parsing file ${fileName}`);

    fileParser
        .open(fileName)
        .subscribe(
        data => {
            console.log(data);
        },
        error => {
            console.error(error);
        },
        () => {
            console.log("completed");
        })
}

export function testString(fileName: string) {
    let parser = new Parser();
    console.log(`Parsing file ${fileName}`);

    let file = fs.readFileSync(fileName, { encoding: "utf-8", flag: "r"});

    parser
    .fromString(file)
    .subscribe(
    data => {
        var da: string[] = (data == null ? [] : data.toArray() as string[]);
        console.log({lineNo: data.lineNo, elements: da.length});
    },
    error => {
        console.error(error);
    },
    () => {
        console.log("completed");
    })
}

const fileNameIndex = process.argv.findIndex(item => item === "--file");
if (fileNameIndex < 0) {
    console.error("File name not provided, please use the --file switch");
    process.exit(1);
}

const fileName = process.argv[fileNameIndex + 1];
//testFile(fileName);
testString(fileName);