package funkin.modding;

import polymod.Polymod;

@:nullSafety
class PolymodErrorHandler
{
  public static function onPolymodError(error:PolymodError):Void
  {
    // Perform an action based on the error code.
    switch (error.code)
    {
      case FRAMEWORK_INIT, FRAMEWORK_AUTODETECT, SCRIPT_PARSING:
        // Unimportant.
        return;

      case MOD_LOAD_PREPARE, MOD_LOAD_DONE:
        logInfo('LOADING MOD - ${error.message}');

      case MISSING_ICON:
        logWarn('A mod is missing an icon. Please add one.');

      case SCRIPT_PARSE_ERROR:
        // A syntax error when parsing a script.
        logError(error.message);
        // Notify the user via popup.
        funkin.util.WindowUtil.showError('Polymod Script Parsing Error', error.message);
      case SCRIPT_RUNTIME_EXCEPTION:
        // A runtime error when running a script.
        logError(error.message);
        // Notify the user via popup.
        funkin.util.WindowUtil.showError('Polymod Script Exception', error.message);
      case SCRIPT_CLASS_MODULE_NOT_FOUND:
        // A scripted class tried to reference an unknown class or module.
        logError(error.message);

        // Last word is the class name.
        var className:Null<String> = error.message.split(' ').pop();
        var msg:String = 'Import error in ${error.origin}';
        msg += '\nCould not import unknown class ${className}';
        msg += '\nCheck to ensure the class exists and is spelled correctly.';

        // Notify the user via popup.
        funkin.util.WindowUtil.showError('Polymod Script Import Error', msg);
      case SCRIPT_CLASS_MODULE_BLACKLISTED:
        // A scripted class tried to reference a blacklisted class or module.
        logError(error.message);
        // Notify the user via popup.
        funkin.util.WindowUtil.showError('Polymod Script Blacklist Violation', error.message);
      default:
        // Log the message based on its severity.
        switch (error.severity)
        {
          case NOTICE:
            logInfo(error.message);
          case WARNING:
            logWarn(error.message);
          case ERROR:
            logError(error.message);
        }
    }
  }

  static function logInfo(message:String):Void
  {
    trace('[INFO-] ${message}');
  }

  static function logError(message:String):Void
  {
    trace('[ERROR] ${message}');
  }

  static function logWarn(message:String):Void
  {
    trace('[WARN-] ${message}');
  }
}