/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2020-11-11 13:27:58
 * @modify date 2021-01-18 18:48:59
 * @desc [description]
 */

import { ArgumentParser } from "argparse";
import { readFile } from "fs/promises";
import { writeDefaultConfig } from "../loader/loadPackages";
import { getNopeLogger } from "../logger/getLogger";

// Define the Main Function.
// This function is used as cli tool.
export const generateDefaultPackageConfig = async function (
  additionalArguments: {
    help: string;
    type: "string" | "number";
    name: string | string;
    defaultValue?: any;
  }[] = []
) {
  const parser = new ArgumentParser({
    // version: "1.0.0",
    add_help: true,
    description: "Command Line interface, determines the available Packages.",
  });

  let opts: {
    modules: string;
  };

  for (const arg of additionalArguments) {
    parser.add_argument(arg.name, {
      help: arg.help,
      default: arg.defaultValue,
      type: arg.type,
    });
  }

  try {
    // Try to read in the default config file.
    opts = JSON.parse(
      await readFile("./nopeconfig.json", {
        encoding: "utf-8",
      })
    );
  } catch (error) {
    opts = {} as any;
  }

  parser.add_argument("-f", "--file", {
    help: "File containing containing the package definitions.",
    default: "./config/settings.json",
    type: "str",
    dest: "file",
  });
  parser.add_argument("-d", "--dir", {
    help: "Directory containing the Modules.",
    default: "not-provided",
    type: "str",
    dest: "modules",
  });

  const args = parser.parse_args();

  if (args.modules != "not-provided") {
    opts.modules = args.modules;
  }

  // Define a Logger
  const logger = getNopeLogger("Setup-CLI");

  try {
    logger.info("Scanning " + opts.modules);
    // Write the Config.
    await writeDefaultConfig(opts.modules, args.file);
    // Inform the user.
    logger.info("Created Package-File at " + args.file);
  } catch (error) {
    logger.error("Failed generating the Config");
    logger.error(error);
  }
};

if (require.main === module) {
  generateDefaultPackageConfig().catch((e) => console.error(e));
}