<?php
if (!defined('_PS_VERSION_')) {
    exit;
}

class CustomDevSlider extends Module implements \PrestaShop\PrestaShop\Core\Module\WidgetInterface
{
    public function __construct()
    {
        $this->name = 'customdevslider';
        $this->tab = 'front_office_features';
        $this->version = '1.0.0';
        $this->author = 'CustomDev';
        $this->need_instance = 0;
        $this->bootstrap = true;

        parent::__construct();

        $this->displayName = $this->l('Custom Dev Slider');
        $this->description = $this->l('Custom slider with dynamic slides (image, title, text, link).');
    }

    public function install()
    {
        return parent::install()
            && $this->installDb()
            && $this->installTab()
            && $this->registerHook('displayHome')
            && $this->registerHook('displayTop')
            && $this->registerHook('header');
    }

    public function uninstall()
    {
        return $this->uninstallTab()
            && $this->uninstallDb()
            && parent::uninstall();
    }

    public function hookDisplayTop($params)
    {
        return $this->renderWidget('displayTop', []);
    }

    public function hookDisplayHome($params)
    {
        return $this->renderWidget('displayHome', []);
    }

    public function getContent()
    {
        Tools::redirectAdmin($this->context->link->getAdminLink('AdminCustomDevSlider'));
    }

    public function hookHeader()
    {
        // Swiper (локально)
        $this->context->controller->registerStylesheet(
            'customdevslider-swiper',
            'modules/'.$this->name.'/plugins/swiperjs/swiper.min.css',
            ['media' => 'all', 'priority' => 140]
        );

        // Твій CSS (після swiper)
        $this->context->controller->registerStylesheet(
            'customdevslider-front',
            'modules/'.$this->name.'/css/front.css',
            ['media' => 'all', 'priority' => 150]
        );

        // Swiper JS (перед твоїм JS)
        $this->context->controller->registerJavascript(
            'customdevslider-swiper',
            'modules/'.$this->name.'/plugins/swiperjs/swiper.min.js',
            ['position' => 'bottom', 'priority' => 140]
        );

        // Твій JS ініціалізації
        $this->context->controller->registerJavascript(
            'customdevslider-front',
            'modules/'.$this->name.'/js/front.js',
            ['position' => 'bottom', 'priority' => 150]
        );
    }

    // WidgetInterface
    public function renderWidget($hookName, array $configuration)
    {
        $this->smarty->assign($this->getWidgetVariables($hookName, $configuration));
        return $this->fetch('module:'.$this->name.'/views/templates/hook/slider.tpl');
    }

    public function getWidgetVariables($hookName, array $configuration)
    {
        $idLang = (int)$this->context->language->id;

        $slides = Db::getInstance()->executeS('
            SELECT s.*, sl.title, sl.text
            FROM `'._DB_PREFIX_.'customdevslider_slide` s
            LEFT JOIN `'._DB_PREFIX_.'customdevslider_slide_lang` sl
              ON (s.id_customdevslider_slide = sl.id_customdevslider_slide AND sl.id_lang = '.$idLang.')
            WHERE s.active = 1
            ORDER BY s.position ASC
        ');

        foreach ($slides as &$s) {
            $s['image_url'] = $s['image']
                ? $this->context->link->getMediaLink(_MODULE_DIR_.$this->name.'/uploads/'.$s['image'])
                : null;
        }
        unset($s);

        // UID щоб кілька віджетів не конфліктували
        $uid = Tools::passwdGen(10, 'NO_NUMERIC');

        return [
            'customdevslider_slides' => $slides,
            'customdevslider_uid' => $uid,
        ];
    }

    private function installDb()
    {
        $sql = [];

        $sql[] = 'CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'customdevslider_slide` (
            `id_customdevslider_slide` INT UNSIGNED NOT NULL AUTO_INCREMENT,
            `image` VARCHAR(255) DEFAULT NULL,
            `link` VARCHAR(255) DEFAULT NULL,
            `position` INT UNSIGNED NOT NULL DEFAULT 0,
            `active` TINYINT(1) NOT NULL DEFAULT 1,
            `date_add` DATETIME NULL,
            `date_upd` DATETIME NULL,
            PRIMARY KEY (`id_customdevslider_slide`)
        ) ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8;';

        $sql[] = 'CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'customdevslider_slide_lang` (
            `id_customdevslider_slide` INT UNSIGNED NOT NULL,
            `id_lang` INT UNSIGNED NOT NULL,
            `title` VARCHAR(255) DEFAULT NULL,
            `text` TEXT DEFAULT NULL,
            PRIMARY KEY (`id_customdevslider_slide`, `id_lang`)
        ) ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8;';

        foreach ($sql as $q) {
            if (!Db::getInstance()->execute($q)) {
                return false;
            }
        }

        return true;
    }

    private function uninstallDb()
    {
        $sql = [];
        $sql[] = 'DROP TABLE IF EXISTS `'._DB_PREFIX_.'customdevslider_slide_lang`';
        $sql[] = 'DROP TABLE IF EXISTS `'._DB_PREFIX_.'customdevslider_slide`';

        foreach ($sql as $q) {
            if (!Db::getInstance()->execute($q)) {
                return false;
            }
        }
        return true;
    }

    private function installTab()
    {
        $idParent = (int)Tab::getIdFromClassName('AdminParentModulesSf');

        $tab = new Tab();
        $tab->active = 1;
        $tab->class_name = 'AdminCustomDevSlider';
        $tab->module = $this->name;
        $tab->id_parent = $idParent;

        $tab->name = [];
        foreach (Language::getLanguages(true) as $lang) {
            $tab->name[(int)$lang['id_lang']] = 'Custom Dev Slider';
        }

        return (bool)$tab->add();
    }

    private function uninstallTab()
    {
        $idTab = (int)Tab::getIdFromClassName('AdminCustomDevSlider');
        if ($idTab) {
            $tab = new Tab($idTab);
            return (bool)$tab->delete();
        }
        return true;
    }
}