<?php

if (!defined('IN_ONLINE')) {
    exit('Access Denied');
}

/**
 * Description of multilingual
 *
 * @author Administrator
 */
class multilingual{

    private static $_multilingual;

    function __construct() {  
       
    }

    public static function getInstance() {
        global $memory_limit;
        $memory_limit = ini_get("memory_limit");
        ini_set("memory_limit", '2048M');
        if (!self::$_multilingual) {
            $c = __CLASS__;
            self::$_multilingual = new $c;
        }
        return self::$_multilingual;
    }
    public function multilingual_config() {
        $operate = utils::_get('operate');
        $operate = strtolower($operate);

        /*
         * multilingual_load
        */
        if ($operate == "multilingual_init") {
            $this->_multilingual_init();
        }

        if ($operate == "multilingual_search") {
            $this->_multilingual_search();
        }

        /*
         * multilingual_save
         */
        if ($operate == "multilingual_save") {
            $multilingual = $_POST['multilingual_param'];

            $unverifiedNumber = $multilingual['unverifiedNumber'];
            $page = $multilingual['page'];
            $data = $multilingual['data'];
        }
    }

        private function _multilingual_init() {
        // 1. 获取并解析 JSON 数据
        $rawData = $_POST['josn_input'];
        $mode = $_POST['mode'];
        $json = json_decode($rawData, true);

        if (!$json) {
            common::echo_json_encode(500, "Invalid JSON format");
            exit();
        }

        // 获取控制模式，默认为 'update'
        $mode = empty($mode) ? 'update' : 'replace';

        $pageKey = isset($json['page']) ? $json['page'] : '';
        $unverifiedNumber = isset($json['unverifiedNumber']) ? intval($json['unverifiedNumber']) : 0;
        $dataList = isset($json['data']) ? $json['data'] : [];

        if (empty($pageKey)) {
            common::echo_json_encode(500, "Missing page key");
            exit();
        }

        // 2. 定义语言映射配置
        $langMap = [
            'traditionalChinese' => ['name' => '繁体中文', 'code' => 'zh-TW'],
            'simplifiedChinese'  => ['name' => '简体中文', 'code' => 'zh-CN'],
            'english'            => ['name' => '英语', 'code' => 'en-US'],
            'french'             => ['name' => '法语', 'code' => 'fr-FR'],
            'spanish'            => ['name' => '西班牙语', 'code' => 'es-ES'],
            'portuguese'         => ['name' => '葡萄牙语', 'code' => 'pt-BR']
        ];

        // 开启事务
        global $db;
        $db->StartTrans();

        try {
            // ==========================================
            // 第一步：处理页面表 (kln_i18n_pages)
            // ==========================================
            $pageId = null;

            // 如果是覆盖模式，先删除旧页面及关联数据
            if ($mode === 'replace') {
                // 1. 先删子表 (kln_i18n_keys)，防止外键报错
                $kikSqlDelete = "DELETE FROM kln_i18n_keys WHERE page_id IN (SELECT id FROM kln_i18n_pages WHERE page_key = '$pageKey')";
                $db->GetRow($kikSqlDelete) or ( (!$db->ErrorMsg()) or error_log(common::dbLog($db, $kikSqlDelete), 0));
                // 2. 再删主表
                $kipSqlDelete = "DELETE FROM kln_i18n_pages WHERE page_key = '$pageKey'";
                $db->GetRow($kipSqlDelete) or ( (!$db->ErrorMsg()) or error_log(common::dbLog($db, $kipSqlDelete), 0));
            }

            // 查询页面是否存在
            $checkPageSql = "SELECT id FROM kln_i18n_pages WHERE page_key = '$pageKey'";
            $checkPageRes = common::excuteObjectSql($checkPageSql);
            
            if (!empty($checkPageRes)) {
                // 存在 -> 更新
                $pageId = $checkPageRes[0]['id'];
                $updatePageSql = "UPDATE kln_i18n_pages SET unverified_number = $unverifiedNumber WHERE id = $pageId";
                common::excuteObjectSql($updatePageSql);
            } else {
                // 不存在 -> 插入
                $insertPageSql = "INSERT INTO kln_i18n_pages (page_key, unverified_number, description) VALUES ('$pageKey', $unverifiedNumber, '')";
                common::excuteObjectSql($insertPageSql);
                // 获取新生成的 ID (PostgreSQL 语法)
                $pageIdRow = common::excuteObjectSql("SELECT currval('kln_i18n_pages_id_seq')");
                $pageId = $pageIdRow[0]['currval'];
            }

            // ==========================================
            // 第二步：循环处理数据
            // ==========================================
            foreach ($dataList as $item) {
                $transKey = $item['key'];
                $originValue = isset($item['orginEnglish']) ? $item['orginEnglish'] : '';

                foreach ($langMap as $jsonKey => $langInfo) {
                    // 只处理 JSON 中存在的数据
                    if (isset($item[$jsonKey])) {
                        $transValue = $item[$jsonKey];
                        $statusKey = $jsonKey . 'Status';
                        $status = isset($item[$statusKey]) ? intval($item[$statusKey]) : 0;

                        // --- 1. 处理语言表 (kln_i18n_languages) ---
                        $langKey = $jsonKey; 
                        $langName = $langInfo['name'];
                        $localeCode = $langInfo['code'];

                        // 查询语言是否存在
                        $checkLangSql = "SELECT id FROM kln_i18n_languages WHERE lang_key = '$langKey'";
                        $checkLangRes = common::excuteObjectSql($checkLangSql);

                        if (!empty($checkLangRes)) {
                            // 存在 -> 更新
                            $langId = $checkLangRes[0]['id'];
                            $updateLangSql = "UPDATE kln_i18n_languages SET lang_name = '$langName', locale_code = '$localeCode' WHERE id = $langId";
                            common::excuteObjectSql($updateLangSql);
                        } else {
                            // 不存在 -> 插入
                            $insertLangSql = "INSERT INTO kln_i18n_languages (lang_key, lang_name, locale_code, is_active) VALUES ('$langKey', '$langName', '$localeCode', 1)";
                            common::excuteObjectSql($insertLangSql);
                            // 获取 ID
                            $langIdRow = common::excuteObjectSql("SELECT currval('kln_i18n_languages_id_seq')");
                            $langId = $langIdRow[0]['currval'];
                        }

                        // --- 2. 处理词条表 (kln_i18n_keys) ---
                        // 查询词条是否存在 (根据 page_id, lang_id, trans_key 唯一性)
                        $checkKeySql = "SELECT id FROM kln_i18n_keys WHERE page_id = $pageId AND lang_id = $langId AND trans_key = '$transKey'";
                        $checkKeyRes = common::excuteObjectSql($checkKeySql);

                        if (!empty($checkKeyRes)) {
                            // 存在 -> 更新
                            $updateKeySql = "UPDATE kln_i18n_keys SET trans_value = '$transValue', orgin_value = '$originValue', status = $status WHERE id = " . $checkKeyRes[0]['id'];
                            common::excuteObjectSql($updateKeySql);
                        } else {
                            // 不存在 -> 插入
                            $insertKeySql = "INSERT INTO kln_i18n_keys (page_id, lang_id, trans_key, trans_value, orgin_value, status) VALUES ($pageId, $langId, '$transKey', '$transValue', '$originValue', $status)";
                            common::excuteObjectSql($insertKeySql);
                        }
                    }
                }
            }

            // 提交事务
            common::excuteObjectSql("COMMIT");
            common::echo_json_encode(200, "Initialization successful (Mode: $mode)");

        } catch (Exception $e) {
            // 发生错误回滚
            common::excuteObjectSql("ROLLBACK");
            common::echo_json_encode(500, "Database Error: " . $e->getMessage());
        }
        
        exit();
    }
        

    private function _multilingual_search() {
        $page = common::check_input($_POST ['page']); 
        $sql = "SELECT *  from public.i18n_content where page = '$page'";
        $content = common::excuteObjectSql($sql);

        if(empty($content)){
            common::echo_json_encode(500,"Page not exist");
            exit();
        }
        
        $multilingual = array();
        $multilingual["unverifiedNumber"] = $content['unverifinumber'];
        $multilingual["page"] = $page;
        $multilingual["data"] = json_decode($content['content_data'],true);
       
        common::echo_json_encode(200,$multilingual);
        exit();
    }  
}

?>