import * as fs from 'fs';
import * as path from 'path';
import * as core from '@actions/core';

/**
 * Function to get inputs from both with and env annotations.
 *
 * @param name
 * @param mandatory
 */
export async function getInput(
  name: string,
  mandatory: boolean
): Promise<string> {
  const input = process.env[name];
  switch (input) {
    case '':
    case undefined:
      return core.getInput(name, {required: mandatory});
    default:
      return input;
  }
}

/**
 * Async foreach loop
 *
 * @author https://github.com/Atinux
 * @param array
 * @param callback
 */
export async function asyncForEach(
  array: Array<string>,
  callback: (
    element: string,
    index: number,
    array: Array<string>
  ) => Promise<void>
): Promise<void> {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array);
  }
}

/**
 * Get color index
 *
 * @param type
 */
export async function color(type: string): Promise<string> {
  switch (type) {
    case 'error':
      return '31';
    default:
    case 'success':
      return '32';
    case 'warning':
      return '33';
  }
}

/**
 * Log to console
 *
 * @param message
 * @param os_version
 * @param log_type
 * @param prefix
 */
export async function log(
  message: string,
  os_version: string,
  log_type: string
): Promise<string> {
  switch (os_version) {
    case 'win32':
      return (
        'printf "\\033[' +
        (await color(log_type)) +
        ';1m' +
        message +
        ' \\033[0m"'
      );

    case 'linux':
    case 'darwin':
    default:
      return (
        'echo "\\033[' + (await color(log_type)) + ';1m' + message + '\\033[0m"'
      );
  }
}

/**
 * Function to log a step
 *
 * @param message
 * @param os_version
 */
export async function stepLog(
  message: string,
  os_version: string
): Promise<string> {
  switch (os_version) {
    case 'win32':
      return 'Step-Log "' + message + '"';
    case 'linux':
    case 'darwin':
      return 'step_log "' + message + '"';
    default:
      return await log(
        'Platform ' + os_version + ' is not supported',
        os_version,
        'error'
      );
  }
}

/**
 * Function to log a result
 * @param mark
 * @param subject
 * @param message
 */
export async function addLog(
  mark: string,
  subject: string,
  message: string,
  os_version: string
): Promise<string> {
  switch (os_version) {
    case 'win32':
      return 'Add-Log "' + mark + '" "' + subject + '" "' + message + '"';
    case 'linux':
    case 'darwin':
      return 'add_log "' + mark + '" "' + subject + '" "' + message + '"';
    default:
      return await log(
        'Platform ' + os_version + ' is not supported',
        os_version,
        'error'
      );
  }
}

/**
 * Read the scripts
 *
 * @param filename
 * @param version
 * @param os_version
 */
export async function readScript(
  filename: string,
  version: string,
  os_version: string
): Promise<string> {
  return fs.readFileSync(
    path.join(__dirname, '../src/scripts/' + filename),
    'utf8'
  );
}

/**
 * Write final script which runs
 *
 * @param filename
 * @param version
 * @param script
 */
export async function writeScript(
  filename: string,
  script: string
): Promise<string> {
  const runner_dir: string = await getInput('RUNNER_TOOL_CACHE', false);
  const script_path: string = path.join(runner_dir, filename);
  fs.writeFileSync(script_path, script, {mode: 0o755});
  return script_path;
}

/**
 * Function to break extension csv into an array
 *
 * @param extension_csv
 */
export async function extensionArray(
  extension_csv: string
): Promise<Array<string>> {
  switch (extension_csv) {
    case '':
    case ' ':
      return [];
    default:
      return extension_csv
        .split(',')
        .map(function(extension: string) {
          return extension
            .trim()
            .replace('php-', '')
            .replace('php_', '');
        })
        .filter(Boolean);
  }
}

/**
 * Function to break csv into an array
 *
 * @param values_csv
 * @constructor
 */
export async function CSVArray(values_csv: string): Promise<Array<string>> {
  switch (values_csv) {
    case '':
    case ' ':
      return [];
    default:
      return values_csv
        .split(',')
        .map(function(value: string) {
          return value.trim();
        })
        .filter(Boolean);
  }
}

/**
 * Function to get prefix required to load an extension.
 *
 * @param extension
 */
export async function getExtensionPrefix(extension: string): Promise<string> {
  const zend: Array<string> = ['xdebug', 'opcache', 'ioncube', 'eaccelerator'];
  switch (zend.indexOf(extension)) {
    case 0:
    case 1:
      return 'zend_extension';
    case -1:
    default:
      return 'extension';
  }
}

/**
 * Function to get the suffix to suppress console output
 *
 * @param os_version
 */
export async function suppressOutput(os_version: string): Promise<string> {
  switch (os_version) {
    case 'win32':
      return ' >$null 2>&1';
    case 'linux':
    case 'darwin':
      return ' >/dev/null 2>&1';
    default:
      return await log(
        'Platform ' + os_version + ' is not supported',
        os_version,
        'error'
      );
  }
}