'use strict';

const CommandOperation = require('./command');

class ProfilingLevelOperation extends CommandOperation {
  constructor(db, command, options) {
    super(db, options);
  }

  _buildCommand() {
    const command = { profile: -1 };

    return command;
  }

  execute(callback) {
    super.execute((err, doc) => {
      if (err == null && doc.ok === 1) {
        const was = doc.was;
        if (was === 0) return callback(null, 'off');
        if (was === 1) return callback(null, 'slow_only');
        if (was === 2) return callback(null, 'all');
        return callback(new Error('Error: illegal profiling level value ' + was), null);
      } else {
        err != null ? callback(err, null) : callback(new Error('Error with profile command'), null);
      }
    });
  }
}

module.exports = ProfilingLevelOperation;