<?php

namespace Websmid\CustomHtml\Module;

use Websmid\CustomHtml\Model\CustomHtmlBlock;
use Websmid\CustomHtml\Model\CustomHtmlFaq;
use Websmid\CustomHtml\Model\CustomHtmlGroup;
use Context;

trait DisplayHooks
{
    public function hookActionFrontControllerSetMedia(): void
    {
        $this->context->controller->registerStylesheet(
            'ws_customhtml_front',
            '/modules/' . $this->name . '/views/css/front/customhtml.css'
        );
    }

    public function renderWidget($hookName = null, array $configuration = [])
    {
        if (empty($hookName)) {
            return false;
        }

        $idLang = (int) Context::getContext()->language->id;
        $templateFile = 'module:ws_customhtml/views/templates/hook/customhtml_block.tpl';
        $cacheId = $this->getCacheId('ws_customhtml_' . $idLang . '_' . $hookName);

        if (!$this->isCached($templateFile, $cacheId)) {
            $variables = $this->getWidgetVariables($hookName, $configuration);

            if (empty($variables)) {
                return false;
            }

            $this->smarty->assign($variables);
        }

        return $this->fetch($templateFile, $cacheId);
    }

    public function getWidgetVariables($hookName = null, array $configuration = [])
    {
        $groupList = $this->loadActiveGroupsWithBlocks((string) $hookName);

        if (empty($groupList)) {
            return [];
        }

        return [
            'hookName'  => $hookName,
            'groupList' => $groupList,
        ];
    }

    private function loadActiveGroupsWithBlocks(string $hookName): array
    {
        $groups = CustomHtmlGroup::getActiveByHookName($hookName);

        if (empty($groups)) {
            return [];
        }

        $blocksByGroup = CustomHtmlBlock::getActiveByGroupIds(array_column($groups, 'id_ws_customhtml_group'));
        $blocksByGroup = $this->attachFaqsToBlocks($blocksByGroup);
        $blocksByGroup = $this->attachBannerImageUrls($blocksByGroup);

        $groups = array_map(static function (array $group) use ($blocksByGroup) {
            $group['blocks'] = $blocksByGroup[(int) $group['id_ws_customhtml_group']] ?? [];

            return $group;
        }, $groups);

        return array_values(array_filter($groups, static function (array $group) {
            return !empty($group['blocks']);
        }));
    }

    private function attachFaqsToBlocks(array $blocksByGroup): array
    {
        return array_map(static function (array $blocks) {
            return array_map(static function (array $block) {
                if ($block['type'] === 'faq') {
                    $block['faqs'] = CustomHtmlFaq::getByBlockId((int) $block['id_ws_customhtml']);
                }

                return $block;
            }, $blocks);
        }, $blocksByGroup);
    }

    private function attachBannerImageUrls(array $blocksByGroup): array
    {
        return array_map(static function (array $blocks) {
            return array_map(static function (array $block) {
                if ($block['type'] === 'banner') {
                    $block['image_url'] = CustomHtmlBlock::getBannerImageUrl($block['image']);
                }

                return $block;
            }, $blocks);
        }, $blocksByGroup);
    }
}