/**
 * Calls any external programs to finish setting up the library
 */
function finalize() {
  console.log(colors.underline.white("Finalizing"))

  // Recreate Git folder
  let gitInitOutput = exec('git init "' + path.resolve(__dirname, "..") + '"', {
    silent: true
  }).stdout
  console.log(colors.green(gitInitOutput.replace(/(\n|\r)+/g, "")))

  // Remove post-install command
  let jsonPackage = path.resolve(__dirname, "..", "package.json")
  const pkg = JSON.parse(readFileSync(jsonPackage) as any)

  // Note: Add items to remove from the package file here
  delete pkg.scripts.postinstall

  writeFileSync(jsonPackage, JSON.stringify(pkg, null, 2))
  console.log(colors.green("Postinstall script has been removed"))

  // Initialize Husky
  fork(
    path.resolve(__dirname, "..", "node_modules", "husky", "bin", "install"),
    { silent: true }
  );
  console.log(colors.green("Git hooks set up"))

  console.log("\n")
}

/**
 * Removes items from the project that aren't needed after the initial setup
 */
function removeItems() {
  console.log(colors.underline.white("Removed"))

  // The directories and files are combined here, to simplify the function,
  // as the 'rm' command checks the item type before attempting to remove it
  let rmItems = rmDirs.concat(rmFiles)
  rm("-rf", rmItems.map(f => path.resolve(__dirname, "..", f)))
  console.log(colors.red(rmItems.join("\n")))

  console.log("\n")
}

/**
 * Renames any template files to the new library name
 * 
 * @param libraryName 
 */
function renameItems(libraryName: string) {
  console.log(colors.underline.white("Renamed"))

  renameFiles.forEach(function(files) {
    // Files[0] is the current filename
    // Files[1] is the new name
    let newFilename = files[1].replace(/--libraryname--/g, libraryName)
    mv(
      path.resolve(__dirname, "..", files[0]),
      path.resolve(__dirname, "..", newFilename)
    )
    console.log(colors.cyan(files[0] + " => " + newFilename))
  })

  console.log("\n")
}

let check = (resultSet, subKey) => {
  depth++;
  // If there's no _meta, we need to recurse further
  if (!resultSet._meta) {
    leftLog(depth, '-', colors.underline.white(`${subKey}`));
    Object.keys(resultSet).forEach(key => check(resultSet[key], key));
    depth--;
    return;
  }
  // If there's no reference property, this was the first time we saw this key
  // So we need to check with the user to ensure that this is the right value
  if (!resultSet.hasOwnProperty('reference')) {
    leftLog(depth, colors.red(`X ${subKey}: No reference value found`));
    // Not using template functions here so we're not calling .toString on objects
    leftLog(depth + 1, colors.grey('Latest result:'), resultSet.current);
    if (keyInYNStrict('Use this value?')) {
      resultSet.reference = resultSet.current;
    }
  }

  // If there is a reference property (checked above) and no current, then the test passed
  // Move along, nothing to see here
  if (!resultSet.hasOwnProperty('current')) {
    leftLog(depth, `${greenCheckmark} ${subKey}`);
    depth--;
    return;
  }


  // If there are both current & reference properties, we need to ensure they match
  // If not, a test failed and the user probably wants to update the value there
  try {
    deepStrictEqual(resultSet.reference, resultSet.current);

    leftLog(depth, `${greenCheckmark} ${subKey}`);
  } catch (e) {
    leftLog(depth, colors.red(`X ${subKey}: Values don't match`));
    // Not using template functions here so we're not calling .toString on objects
    leftLog(depth + 1, colors.grey('Reference value:'), resultSet.reference);
    leftLog(depth + 1, colors.grey('Latest result:'), resultSet.current);
    if (keyInYNStrict('Should I replace this?')) {
      resultSet.reference = resultSet.current;
      delete resultSet.current;
    }
  }
  depth--;
};

/**
 * Updates the contents of the template files with the library name or user details
 * 
 * @param libraryName 
 * @param username 
 * @param usermail 
 */
function modifyContents(libraryName: string, username: string, usermail: string) {
  console.log(colors.underline.white("Modified"))

  let files = modifyFiles.map(f => path.resolve(__dirname, "..", f))
  try {
    const changes = replace.sync({
      files,
      from: [/--libraryname--/g, /--username--/g, /--usermail--/g],
      to: [libraryName, username, usermail]
    })
    console.log(colors.yellow(modifyFiles.join("\n")))
  } catch (error) {
    console.error("An error occurred modifying the file: ", error)
  }

  console.log("\n")
}