Craft\MinimeeService::flightcheck PHP Method

    protected function flightcheck()
    {
        if (empty(self::$_pluginSettings)) {
            throw new Minimee_InfoException(Craft::t('Minimee is not installed.'));
        }
        if (!$this->settings->enabled) {
            throw new Minimee_InfoException(Craft::t('Minimee has been disabled via settings.'));
        }
        if (!$this->settings->validate()) {
            $exceptionErrors = '';
            foreach ($this->settings->getErrors() as $error) {
                $exceptionErrors .= implode('. ', $error);
            }
            throw new Minimee_WarningException(Craft::t('Minimee has detected invalid plugin settings: ') . $exceptionErrors);
        }
        if ($this->settings->useResourceCache()) {
            IOHelper::ensureFolderExists($this->makePathToStorageFolder());
        } else {
            if (!IOHelper::folderExists($this->settings->cachePath)) {
                throw new Minimee_WarningException(Craft::t('Minimee\'s Cache Folder does not exist: ' . $this->settings->cachePath));
            }
            if (!IOHelper::isWritable($this->settings->cachePath)) {
                throw new Minimee_WarningException(Craft::t('Minimee\'s Cache Folder is not writable: ' . $this->settings->cachePath));
            }
        }
        if (!$this->assets) {
            throw new Minimee_InfoException(Craft::t('Minimee has no assets to operate upon.'));
        }
        if (!$this->type) {
            throw new Minimee_WarningException(Craft::t('Minimee has no value for `type`.'));
        }
        return $this;
    }