arguments.ts

import { redBright } from "chalk";
import { cwd } from "process";

export interface ArgumentParserResult {
  command: string;
  flags: Array<string>;
}

export class ArgumentParser {
  private readonly arguments: Array<string>;

  constructor(args: Array<string>) {
    this.arguments = args;
  }

  public createParserResults(): ArgumentParserResult {
    let command: string = cwd();
    let parameters: Array<string> = new Array<string>();
    for (let index = 0; index < this.arguments.length; index++) {
      if (index == 0) {
        command = this.arguments[index];
        continue;
      }

      const isValidParameter = this.arguments[index].startsWith("--");
      if (!isValidParameter) {
        console.log(redBright(`${this.arguments[index]}is not a valid flag`));
        process.exit(1);
      }
      parameters.push(this.arguments[index].slice(2));
    }
    return { command: command, flags: parameters };
  }
}