public function init()
    {
        $config = $this->getConfig();

        if (!isset($config['api_key'])) {
            throw new \Exception('Unable to locate darksky_api_key in bot configuration.');
        }

        $this->darksky = new \DarkSky($config['api_key']);
        $plugin = $this;    // PHP 5.3, you suck.

        // Look at all this weather!
        $this->bot->onChannel('/^!ds (\w+)(.*)/', function(Event $event) use ($plugin) {
            $matches = $event->getMatches();
            switch($cmd = $matches[0]) {
                case 'now':
                case 'current':
                    $plugin->getCurrentWeather(trim($matches[1]), $event);
                    break;

                case 'forecast':
                case 'at':
                    $plugin->getPrecipitation(trim($matches[1]), $event);
                    break;

                default:
                    $plugin->addErrorMsg($event, "Unknown command: $cmd");
                    break;
            }
        });
    }