import fs from "fs/promises";
import { mkdir_to, exec_i, copy, glob } from "../lib/builderator.js";
import { log } from "../lib/logging.js";
import path from "path";

export const BANDO_GIT = "https://git.learnjsthehardway.com/learn-javascript-the-hard-way/bandolier-template.git";

export const description = "Generates projects using the Bandolier educational framework.";

export const options = [
  ["--repo", "repository to dupe and setup", BANDO_GIT],
  ["--template", "templates directory to use for setups", "commands/templates"]
];

export const argument = ["<target>", "name of the project directory (must not exist)"];

export const main = async (target, opts) => {
  try {
    await fs.access(target);
    log.error(`Target ${target} exists. Won't install into it.`);
    process.exit(1);
  } catch(error) {
    // access is stupid, it throws an exception but we want the negative response as a positive outcome
    exec_i(`git clone --depth 1 ${BANDO_GIT} ${target}`);
  }

  // normalize the temp directory
  const temp_dir = path.join(opts.template, '');
  const temp_files = glob(path.join(target, temp_dir, "/**/*"));

  log.info("Copying template files...");

  // copy all of the template files to the destination
  for(let f of temp_files) {
    // kind of dumb way to trim the middle of the path out
    const copy_to = f.replace(`${temp_dir}/`, '');
    mkdir_to(copy_to);
    copy(f, copy_to); // we can add a template thing here
    log.debug(`${f} ---> ${copy_to}`);
  }
}