<?php

namespace Cloudflare\APO\WordPress;

use Cloudflare\APO\Integration\DefaultLogger;
use Cloudflare\APO\Integration\DataStoreInterface;
use Cloudflare\APO\API\Plugin;
use Cloudflare\APO\IntlUtil;

class DataStore implements DataStoreInterface
{
    const API_KEY = 'cloudflare_api_key';
    const EMAIL = 'cloudflare_api_email';
    const CACHED_DOMAIN_NAME = 'cloudflare_cached_domain_name';

    protected $wordPressWrapper;
    public $logger;

    /**
     * @param DefaultLogger $logger
     */
    public function __construct(DefaultLogger $logger)
    {
        $this->logger = $logger;

        $this->wordPressWrapper = new WordPressWrapper();
    }

    public function setWordPressWrapper(WordPressWrapper $wordPressWrapper)
    {
        $this->wordPressWrapper = $wordPressWrapper;
    }

    /**
     * @param $client_api_key
     * @param $email
     * @param $unique_id
     * @param $user_key
     *
     * @return bool
     */
    public function createUserDataStore($client_api_key, $email, $unique_id, $user_key)
    {
        if (defined('CLOUDFLARE_API_KEY') && defined('CLOUDFLARE_EMAIL')) {
            return true;
        }

        // Clear options
        $this->set(self::API_KEY, '');
        $this->set(self::EMAIL, '');

        // Fill options
        $isUpdated1 = $this->set(self::API_KEY, $client_api_key);
        $isUpdated2 = $this->set(self::EMAIL, $email);

        return $isUpdated1 && $isUpdated2;
    }

    /**
     * @return unique id for the current user for use in the host api
     */
    public function getHostAPIUserUniqueId()
    {
        return;
    }

    /**
     * @return client v4 api key for current user
     */
    public function getClientV4APIKey()
    {
        if (defined('CLOUDFLARE_API_KEY') && CLOUDFLARE_API_KEY !== '') {
            return CLOUDFLARE_API_KEY;
        }

        return $this->get(self::API_KEY);
    }

    /**
     * @return mixed
     */
    public function getHostAPIUserKey()
    {
        return;
    }

    /**
     * @return mixed
     */
    public function getDomainNameCache()
    {
        if (defined('CLOUDFLARE_DOMAIN_NAME') && CLOUDFLARE_DOMAIN_NAME !== '') {
            return IntlUtil::idn_to_utf8(CLOUDFLARE_DOMAIN_NAME, IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46);
        }

        $cachedDomainName = $this->get(self::CACHED_DOMAIN_NAME);
        if (empty($cachedDomainName)) {
            return;
        }

        return $cachedDomainName;
    }

    /**
     * @return mixed
     */
    public function setDomainNameCache($domainName)
    {
        if (defined('CLOUDFLARE_DOMAIN_NAME') && CLOUDFLARE_DOMAIN_NAME !== '') {
            return;
        }

        return $this->set(self::CACHED_DOMAIN_NAME, $domainName);
    }

    /**
     * @return cloudflare email
     */
    public function getCloudFlareEmail()
    {
        if (defined('CLOUDFLARE_EMAIL') && CLOUDFLARE_EMAIL !== '') {
            return CLOUDFLARE_EMAIL;
        }

        return $this->get(self::EMAIL);
    }

    /**
     * @param  $settingId Plugin::[PluginSettingName]
     *
     * @return mixed
     */
    public function getPluginSetting($settingId)
    {
        $settingName = $this->getPluginSettingName($settingId);
        if (!$settingName) {
            return false;
        }

        return $this->get($settingName);
    }

    private function getPluginSettingName($settingId)
    {
        return in_array($settingId, Plugin::getPluginSettingsKeys()) ? $settingId : false;
    }

    /**
     * @param $key
     *
     * @return mixed
     */
    public function get($key)
    {
        $result = $this->wordPressWrapper->getOption($key, null);

        return $result;
    }

    /**
     * @param $key
     * @param $value
     *
     * @return mixed
     */
    public function set($key, $value)
    {
        return $this->wordPressWrapper->updateOption($key, $value);
    }

    /**
     * @param $key
     */
    public function clear($key)
    {
        $this->wordPressWrapper->deleteOption($key);
    }

    public function clearDataStore()
    {
        $pluginKeys = \Cloudflare\APO\API\Plugin::getPluginSettingsKeys();

        // Delete Plugin Setting Options
        foreach ($pluginKeys as $optionName) {
            $this->clear($optionName);
        }

        // Delete DataStore Options
        $this->clear(self::API_KEY);
        $this->clear(self::EMAIL);
        $this->clear(self::CACHED_DOMAIN_NAME);
    }
}
