<?php
/**
 * @package     Plumrocket_CookieConsent
 * @copyright   Copyright (c) 2020 Plumrocket Inc. (https://plumrocket.com)
 * @license     https://plumrocket.com/license   End-user License Agreement
 */

declare(strict_types=1);

namespace Plumrocket\CookieConsent\Block;

use Magento\Framework\Code\Minifier\Adapter\Js\JShrink;
use Magento\Framework\ObjectManagerInterface;
use Magento\Framework\Serialize\SerializerInterface;
use Magento\Framework\View\Element\Template\Context;
use Plumrocket\CookieConsent\Block\Html\HeadScripts;
use Plumrocket\CookieConsent\Helper\Config;

/**
 * Google Tag Manager Page Block
 */
class Gtm extends HeadScripts
{
    /**
     * @var Config
     */
    private $config;

    /**
     * @var SerializerInterface
     */
    private $serializer;

    /**
     * @param \Magento\Framework\View\Element\Template\Context    $context
     * @param \Plumrocket\CookieConsent\Helper\Config             $config
     * @param \Magento\Framework\Serialize\SerializerInterface    $serializer
     * @param \Magento\Framework\Code\Minifier\Adapter\Js\JShrink $jsMinifier
     * @param \Magento\Framework\ObjectManagerInterface           $objectManager
     * @param array                                               $data
     */
    public function __construct(
        Context $context,
        Config $config,
        SerializerInterface $serializer,
        JShrink $jsMinifier,
        ObjectManagerInterface $objectManager,
        array $data = []
    ) {
        parent::__construct(
            $context,
            $jsMinifier,
            $objectManager,
            $data
        );
        $this->config = $config;
        $this->serializer = $serializer;
    }

    /**
     * Render GTM tracking scripts
     *
     * @return string
     */
    protected function _toHtml()
    {
        if (! $this->config->isGtmEnabled()) {
            return '';
        }

        return parent::_toHtml();
    }

    /**
     * Return cookie restriction mode value.
     *
     * @return string
     */
    public function getGtmContainerId(): string
    {
        return $this->config->getGtmContainerId();
    }

    /**
     * @return string
     */
    public function getGtmServerBaseUrl(): string
    {
        return $this->config->getGtmServerBaseUrl();
    }

    /**
     * Return cookie restriction mode value.
     *
     * @return string
     */
    public function getGmtAssociatedCategoryKey(): string
    {
        return $this->config->getGmtAssociatedCategoryKey();
    }

    /**
     * Check if consent mode enabled
     *
     * @return int
     */
    public function isConsentModeEnabled(): int
    {
        return (int) $this->config->isGtmConsentModeEnabled();
    }

    /**
     * Retrieve consent types default status
     *
     * @return string
     */
    public function getDefaultConsentTypesStatus(): string
    {
        $result = [];

        if ($this->isConsentModeEnabled()) {
            foreach ($this->config->getGtmConsentTypesConfig() as $config) {
                $result[$config['consent_type']] = $config['status'];
            }
        }

        return $this->serializer->serialize($result);
    }

    /**
     * Retrieve consent types default status
     *
     * @return array
     */
    public function getDefaultConsentStatus(): array
    {
        $result = [];
        if ($this->isConsentModeEnabled()) {
            foreach ($this->config->getGtmConsentTypesConfig() as $config) {
                $result[$config['consent_type']] = $config['status'];
            }
        }

        return $result;
    }

    /**
     * Retrieve cookie categories assigned to the consent types
     *
     * @return string
     */
    public function getConsentTypesCategories(): string
    {
        $result = [];

        if ($this->isConsentModeEnabled()) {
            foreach ($this->config->getGtmConsentTypesConfig() as $config) {
                $result[$config['consent_type']] = $config['cookie_category'];
            }
        }

        return $this->serializer->serialize($result);
    }

    /**
     * Get cookie categories to consent types mapping.
     *
     * @return array
     */
    public function getCategoriesMapping(): array
    {
        $result = [];
        if ($this->isConsentModeEnabled()) {
            foreach ($this->config->getGtmConsentTypesConfig() as $config) {
                $result[$config['consent_type']] = $config['cookie_category'];
            }
        }
        return $result;
    }

    /**
     * Get serialized config.
     *
     * @return string
     */
    public function getJsonConfig(): string
    {
        return $this->serializer->serialize([
            'categoryKey' => $this->getGmtAssociatedCategoryKey(),
            'containerId' => $this->getGtmContainerId(),
            'consentMode' => $this->isConsentModeEnabled(),
            'defaultConsentTypes' => $this->getDefaultConsentStatus(),
            'consentTypesCategories' => $this->getCategoriesMapping()
        ]);
    }
}