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

require_once(__DIR__.'/classes/GuideCategory.php');

class PurchaseGuide extends Module
{
	public function __construct()
	{
		$this->name = 'purchaseguide';
		$this->tab = 'front_office_features';
		$this->author = 'Antadis';
		$this->version = '1.0';
		parent::__construct();

		$this->displayName = $this->l('Purchase Guide');
		$this->description = $this->l('Purchase Guide editor for Prestashop');
	}


	public function install()
	{
		if(!parent::install()
			|| !$this->installTabs()
			|| !$this->createTables()
			|| !$this->installImageAddon()
			) {
			$this->uninstall();
			return FALSE;
		}

		$this->registerHook('leftColumn');
		
		return TRUE;
	}


	public function uninstall()
	{
		$this->uninstallTabs();
		$this->dropTables();
		$this->uninstallImageAddon();

		return parent::uninstall();
	}


	private function installTabs()
	{
		$tab_params = [
			'class_name' => 'AdminGuide',
			'id_parent' => 0,
			'tabs_i18n' => array(
				'en' => 'Purchase guide',
				'fr' => 'Guide d\'achat',
			)
		];
		$id_tab_guide = $this->addTab($tab_params);

		$tab_params = [
			'class_name' => 'AdminGuideCategories',
			'id_parent' => $id_tab_guide,
			'tabs_i18n' => array(
				'en' => 'Guide categories',
				'fr' => 'Catégories',
			)
		];
		$this->addTab($tab_params);

		$tab_params = [
			'class_name' => 'AdminGuidePosts',
			'id_parent' => $id_tab_guide,
			'tabs_i18n' => array(
				'en' => 'Pages',
				'fr' => 'Pages',
			)
		];
		$this->addTab($tab_params);

		return TRUE;
	}

	private function addTab($param)
	{
		$last_position = Db::getInstance()->getValue(
			'SELECT MAX(position)
			FROM `'._DB_PREFIX_.'tab`
			WHERE `id_parent` = '.$param['id_parent'].'
			');

		Db::getInstance()->Execute('
			INSERT INTO `'._DB_PREFIX_.'tab`
			VALUES (DEFAULT, "'.$param['id_parent'].'", "'.$param['class_name'].'", "'.$this->name.'", '.($last_position+1).')
		');
		$tab_id = Db::getInstance()->Insert_ID();

		Db::getInstance()->Execute('
			INSERT INTO `'._DB_PREFIX_.'access`
			VALUES (1, '.$tab_id.', 1, 1, 1, 1)
		');

		$langs = Db::getInstance()->ExecuteS('
			SELECT `id_lang`, `iso_code`
			FROM `'._DB_PREFIX_.'lang`
		');

		foreach($langs as $lang) {
			if(isset($param['tabs_i18n'][$lang['iso_code']])) {
				Db::getInstance()->Execute('
					INSERT INTO `'._DB_PREFIX_.'tab_lang`
					VALUES ('.$tab_id.', '.$lang['id_lang'].', "'.$param['tabs_i18n'][$lang['iso_code']].'")
				');
			} else {
				Db::getInstance()->Execute('
					INSERT INTO `'._DB_PREFIX_.'tab_lang`
					VALUES ('.$tab_id.', '.$lang['id_lang'].', "'.$param['tabs_i18n']['en'].'")
				');
			}
		}
		return $tab_id;
	}

	private function uninstallTabs()
	{
		$rows = Db::getInstance()->ExecuteS('
			SELECT `id_tab`
			FROM `'._DB_PREFIX_.'tab`
			WHERE `module` = "'.$this->name.'"
		');
		foreach ($rows as $row) {
			Db::getInstance()->Execute('
				DELETE FROM `'._DB_PREFIX_.'tab_lang`
				WHERE `id_tab` = '.$row['id_tab']
			);
			Db::getInstance()->Execute('
				DELETE FROM `'._DB_PREFIX_.'access`
				WHERE `id_tab` = '.$row['id_tab']
			);
		}

		Db::getInstance()->Execute('
			DELETE FROM `'._DB_PREFIX_.'tab`
			WHERE `module` = "'.$this->name.'"
		');
	}

	private function createTables()
	{
		$queries[] = '
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'guide_category` (
				`id_guide_category` INTEGER NOT NULL AUTO_INCREMENT,
				`id_parent` INTEGER NOT NULL,
				`id_category_family` INTEGER NOT NULL,
				`level_depth` tinyint(3) not null default 0,
				`position` int(10) unsigned not null default 0,
				`active` tinyint(1) not null default 0,

				PRIMARY KEY(`id_guide_category`),
				INDEX(`id_parent`)
			) ENGINE=MyIsam DEFAULT CHARSET=utf8
		';
		
		$queries[] = '
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'guide_category_lang` (
				`id_guide_category` INTEGER NOT NULL,
				`id_lang` INTEGER NOT NULL,
				`name` varchar(128) null,
				`description` text null,
				`link_rewrite` varchar(128) not null,
				`meta_title` varchar(128) not null,
				`meta_description` varchar(255) null,
				`meta_keywords` varchar(255) null,

				PRIMARY KEY(`id_guide_category`, `id_lang`)
			) ENGINE=MyIsam DEFAULT CHARSET=utf8
		';
		
		$queries[] = '
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'guide_post` (
				`id_guide_post` INTEGER NOT NULL AUTO_INCREMENT,
				`id_guide_category` INTEGER NOT NULL,
				`position` int(10) unsigned not null default 0,
				`active` tinyint(1) not null default 0,

				PRIMARY KEY(`id_guide_post`),
				INDEX(`id_guide_category`)
			) ENGINE=MyIsam DEFAULT CHARSET=utf8
		';
		
		$queries[] = '
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'guide_post_lang` (
				`id_guide_post` INTEGER NOT NULL,
				`id_lang` INTEGER NOT NULL,
				`meta_title` varchar(255) not null,
				`meta_description` varchar(255) null,
				`meta_keywords` varchar(255) null,
				`content` longtext null,
				`link_rewrite` varchar(128) not null,

				PRIMARY KEY(`id_guide_post`, `id_lang`)
			) ENGINE=MyIsam DEFAULT CHARSET=utf8
		';
		

	 	foreach ($queries as $query) {
	 		if (!Db::getInstance()->Execute($query)) {
	 			return FALSE;
	 		}
		}
		return TRUE;
	}

	private function dropTables()
	{
		$queries[] = 'DROP TABLE `'._DB_PREFIX_.'guide_post_lang`';
		$queries[] = 'DROP TABLE `'._DB_PREFIX_.'guide_post`';
		$queries[] = 'DROP TABLE `'._DB_PREFIX_.'guide_category_lang`';
		$queries[] = 'DROP TABLE `'._DB_PREFIX_.'guide_category`';
	 	foreach ($queries as $query) {
	 		Db::getInstance()->Execute($query);
		}
	}

	private function installImageAddon()
	{
		// Add image type
		Db::getInstance()->Execute('
			INSERT INTO `'._DB_PREFIX_.'image_type` VALUES (
				DEFAULT, "guide_category", 980, 480, 0, 0, 0, 0, 0, 0
			)
		');

        return true;
	}

	private function uninstallImageAddon()
	{
		// Remove image type
		Db::getInstance()->ExecuteS('
			DELETE FROM `'._DB_PREFIX_.'image_type` WHERE `name` = "guide_category"
		');
	}

	public function hookDisplayNavTop(){}
	
	public function hookDisplayNavLeft(){}
	
	public function hookRightColumn(){}
	
	public function hookLeftColumn()
	{
	    return $this->display(__FILE__, '/views/templates/front/leftcolumn.tpl');
	}
	
	public function displayCategory(){}
	
	public function displayContent(){}
	
}