<?php

/*******************************************************************

    Module        : /Data/Cache.php
    Created By    : Siau Pheng (siaupheng@3fonia.com).
    Created Date  : March 16th, 2008.
    Last Modified : September 3rd, 2026.

    (c) 3FONIA Software; WWW.3FONIA.COM.

*******************************************************************/

declare(strict_types=1);

namespace Webapp\Data;

use \flight\Engine;
use \flight\Session;
use \flight\database\SimplePdo;
use \FilesystemIterator;
use \MatthiasMullie\Minify;
use \SplFileInfo;

/**
 * Class Cache
 * 
 * Membuat Cache gabungan CSS dan JS sesuai dengan session.
 *
 * @license MIT, https://www.3fonia.com
 * @copyright Copyright (c) 2008-2026, Siau Pheng <siaupheng@3fonia.com>
 * 
 * @package Webapp\Data
 */

final class Cache {
    private string $cachedir;
    private string $cssdir;
    private string $localedir;
    private string $jsdir;
    private string $jsapp;
    private string $rootdir;
    private array $ini;
    private array $web_app;
    private array $web_user;
    private bool $is_login;
    private bool $IS_DEV = false;
    protected Engine $app;
    protected SimplePdo $db;
    protected array $asset = [];

    /**
     * @param Engine $app
     */

    public function __construct(Engine $app) {
        $this->app = $app;
        $this->db = $app->db();
        $this->web_app = $app->session()->get('WEB_APP') ?? [];
        $this->web_user = $app->session()->get('WEB_USER') ?? [];
        $this->is_login = (count($this->web_user) > 0);

        $rootdir = (defined('PROJECT_ROOT')) ? PROJECT_ROOT : $app->get('app.project_root');
        $this->cachedir  = $rootdir . '/temp/cache/';
        $this->localedir = $rootdir . '/app/Scripts/locale/';
        $this->jsapp     = $rootdir . '/app/Scripts/';
        $this->cssdir    = realpath(__DIR__ . '/../../assets/css') . '/';
        $this->jsdir     = realpath(__DIR__ . '/../../assets/js') . '/';
        $this->rootdir   = $rootdir . '/';
        if (!is_dir($this->cachedir)) mkdir($this->cachedir, 0755, true);
        if (!file_exists($this->cachedir . "cache.ini")) {
            $this->ini = [
                'login' =>   [ 'css' => "", 'js' => "", 'app' => "", ],
                'index' =>   [ 'css' => "", 'js' => "", 'app' => "", ],
                'display' => [ 'css' => "", 'js' => "", 'app' => "", ],
            ];
            $this->save_ini();
        } else $this->ini = parse_ini_file($this->cachedir . "cache.ini", true);
    }

    public function set_dev(bool $is_dev = false): void {
        $this->IS_DEV = $is_dev;
    }

    public function set_asset(array $asset = []): void {
        $this->asset = $asset;
    }

    private function gen_file(string $mode = "index", string $type = "css"): array {
        $itime = 0;
        $afile = [];
        if ($type === "css") {
            $_afile = array_unique($this->asset['css'][$mode] ?? []);
            foreach ($_afile as $__key => $val) {
                if (!file_exists($this->cssdir . $val)) continue;
                $_file = new SplFileInfo($this->cssdir . $val);
                $afile[] = $_file->getRealPath();
                $itime += $_file->getMTime();
            }
            if (is_dir($this->rootdir . 'app/Styles/')) {
                $iterator = new FilesystemIterator($this->rootdir . 'app/Styles/', FilesystemIterator::SKIP_DOTS);
                foreach ($iterator as $_file) {
                    if ($_file->isFile()) {
                        $afile[] = $_file->getRealPath();
                        $itime += $_file->getMTime();
                    }
                }
            }
        } else if ($type === "js") {
            $_afile = array_unique($this->asset['js'][$mode] ?? []);
            foreach ($_afile as $__key => $val) {
                if (!file_exists($this->jsdir . $val)) continue;
                $_file = new SplFileInfo($this->jsdir . $val);
                $afile[] = $_file->getRealPath();
                $itime += $_file->getMTime();
            }
            // add locale file
            $ljs = ($this->web_user['LOCALE'] ?? $this->web_app['DEF_LOCALE']).'.js';
            if (is_dir($this->localedir)) {
                $iterator = new \FilesystemIterator($this->localedir, \FilesystemIterator::SKIP_DOTS);
                foreach ($iterator as $_file) {
                    if ($_file->isFile() && str_ends_with($_file->getFilename(), $ljs)) {
                        $afile[] = $_file->getRealPath();
                        $itime += $_file->getMTime();
                    }
                }
            }
        } else if ($type === "app") {
            if (is_dir($this->jsapp)) {
                if (file_exists($this->jsapp . $mode . '.js')) {
                    $_file = new SplFileInfo($this->jsapp . $mode . '.js');
                    $afile[] = $_file->getRealPath();
                    $itime += $_file->getMTime();
                }
                if ($mode === 'index') {
                    $_ajs = ['system/profile', 'system/chpasswd'];
                    $amenu = array_values($this->web_user['Merge_Menu'] ?? []);
                    $_ops = $this->db->fetchColumn("SELECT Link FROM app_menu WHERE Kode IN (?) AND Link<>'' ORDER BY Kode", [$amenu]);
                    if ($_ops) $_ajs = array_merge($_ajs, $_ops);
                    $dirIterator = new \RecursiveDirectoryIterator($this->jsapp, \RecursiveDirectoryIterator::SKIP_DOTS);
                    $dirFilter = new \RecursiveCallbackFilterIterator($dirIterator, fn($curr, $key, $iter) => !($curr->isDir() && in_array($curr->getFilename(), ['locale'])));
                    $iterator = new \RecursiveIteratorIterator($dirFilter);
                    foreach ($iterator as $_file) {
                        if ($_file->isFile() &&
                            !in_array($_file->getFilename(), ['login.js','index.js','display.js']) &&
                            array_any($_ajs, fn($js) => str_ends_with(str_replace(['_','\\'],['','/'],$_file->getRealPath()), $js.'.js'))) {
                            $afile[] = $_file->getRealPath();
                            $itime += $_file->getMTime();
                        }
                    }
                }
            }
        }
        return [ $afile, $itime ];
    }

    private function create_cache(string $type = "css", array $afile = [], string $cachefile = ""): void {
        $contents = ''; $smini = null;
        $bpublic = ($this->app->request()->ip === '127.0.0.1') ? false : true;
        if ($bpublic === true) {
            if ($type === "css") {
                $smini = new Minify\CSS;
            } else {
                $smini = new Minify\JS;
            }
        }
        foreach ($afile as $nfile) {
            if (file_exists($nfile)) {
                if ($bpublic === true) {
                    $smini->add($nfile);
                } else {
                    $contents .= "\n". file_get_contents($nfile);
                }
            }
        }
        if ($bpublic) $contents = $smini->minify();
        file_put_contents($this->cachedir . $cachefile, $contents);
    }

    private function save_ini(): void {
        $content = ""; 
        unset ($this->ini['index']['app']);
        foreach ($this->ini as $key => $elem) {
            $content .= ($content === ""?"" : "\n"). "[".$key."]\n";
            foreach ($elem as $key2 => $elem2) {
                if ($key)
                if ($elem2 === "") $content .= $key2." = \n";
                else $content .= $key2." = \"".$elem2."\"\n";
            }
        }
        file_put_contents($this->cachedir . "cache.ini", $content);
    }

    public function Cache(string $mode = "index"): array {
        if ($mode === 'index') {
            $this->ini['index']['app'] = (string) $this->db->fetchField("SELECT JS FROM app_operator_profile WHERE UserID=?", [$this->web_user['UserID']]) ?? '';
            $this->web_user['Merge_Menu'] = array_filter(array_unique(explode(",", $this->web_user['Menu_Grup'] .",". $this->web_user['Menu'])));
        }

        $is_modif = false;
        foreach (['css','js','app'] as $type) {
            $is_index_app = ($mode === 'index' && $type === 'app');
            if (empty($this->ini[$mode][$type]) || !file_exists($this->cachedir . $this->ini[$mode][$type]) || ($this->IS_DEV)) {
                [ $afile, $lastmod ] = $this->gen_file($mode, $type);
                $cachefile = md5($mode . '-' . $type . '-' . $lastmod) . ($type === 'css' ? '.css' : '.js');
                if ($is_index_app) $cachefile = md5('index-app-' . (string) $this->web_user['UserID'] . $lastmod) . '.js';
                $this->create_cache($type, $afile, $cachefile);
                $this->ini[$mode][$type] = $cachefile;
                if ($is_index_app) $this->db->runQuery("INSERT INTO app_operator_profile (UserID,JS) VALUES (?, ?) ON DUPLICATE KEY UPDATE JS=VALUES(JS)", [$this->web_user['UserID'], $cachefile]);
                $is_modif = true;
            }
        }

        $acache = [ 'CSS' => [], 'JS' => [], 'JSX' => [] ];
        foreach ($this->ini[$mode] as $_type => $_file) {
            if (file_exists($this->cachedir . $_file)) {
                if ($_type === 'css') {
                    $acache['CSS'][] = 'cache/' . $_file;
                } else $acache['JS'][] = 'cache/' . $_file;
            }
        }
        if ($is_modif === true) $this->save_ini();

        $nonce = $this->app->get('csp_nonce');
        $_secret = $this->web_app['APP_CODE'] .";". $this->web_app['APP_SID'] .";". $this->app->request()->getVar('HTTP_HOST') .";". "http://".$this->app->request()->getVar('HTTP_HOST') .";". isMobile() .";". ($this->web_app['AUTH_LEVEL']?$this->web_app['AUTH_LEVEL']:0);
        $_suser = ($this->is_login) ? $this->web_user['Username'] .";". $this->web_user['UserID'] .";". $this->web_user['Grup_MenuID'] .";". $this->web_user['Level'] : "nobody;999;999;9";

        $acache['JSX'][] = '<script nonce="'.$nonce.'" type="text/javascript">';
        $acache['JSX'][] = 'FoniaJS.setConfig("'.base64_encode($_secret).'", "'.base64_encode($_suser).'");';
        $acache['JSX'][] = '$(document).ready(function(){';
        if ($this->is_login) $acache['JSX'][] = 'FoniaJS.loadMenu();';
        $acache['JSX'][] = '});';
        $acache['JSX'][] = '</script>';

        return $acache;
    }

    public function Make_Cache(array $amode = ['login', 'index', 'display']): array {
        $is_modif = false;
        foreach ($amode as $mode) {
            foreach (['css','js','app'] as $type) {
                if ($mode === 'index' && $type === 'app') continue;
                if (empty($this->ini[$mode][$type]) || !file_exists($this->cachedir . $this->ini[$mode][$type])) {
                    [ $afile, $lastmod ] = $this->gen_file($mode, $type);
                    $cachefile = md5($mode . '-' . $type . '-' . $lastmod) . ($type === 'css' ? '.css' : '.js');
                    $this->create_cache($type, $afile, $cachefile);
                    $this->ini[$mode][$type] = $cachefile;
                    $is_modif = true;
                }
            }
        }
        if ($is_modif === true) $this->save_ini();
    
        if (in_array('index', $amode)) {
            $agrup = $this->db->fetchAll('SELECT Grup_MenuID,DECODE(Menu,?) Menu FROM app_menu_grup', [$this->web_app['PARENT_CODE']]);
            $auser = $this->db->fetchAll("SELECT A.*,IFNULL(B.JS,'') JS FROM (SELECT UserID,Grup_MenuID,DECODE(Menu,?) Menu FROM app_operator) A LEFT JOIN app_operator_profile B ON (A.UserID=B.UserID)", [$this->web_app['PARENT_CODE']]);
            foreach ($auser as $user) {
                if (empty($user['JS']) || !file_exists($this->cachedir . $user['JS'])) {
                    $this->web_user['Merge_Menu'] = array_filter(array_unique(explode(",", $user['Menu'] .",". ($agrup[$user['Grup_MenuID']]['Menu'] ?? ''))));

                    [ $afile, $lastmod ] = $this->gen_file('index', 'app');
                    $cachefile = md5('index-app-' . (string) $user['UserID'] . $lastmod) . '.js';
                    $this->create_cache('app', $afile, $cachefile);
                    $this->db->runQuery("INSERT INTO app_operator_profile (UserID,JS) VALUES (?, ?) ON DUPLICATE KEY UPDATE JS=VALUES(JS)", [$user['UserID'], $cachefile]);
                }
            }
        }
        return [ 'status' => 1, 'user_count' => count($auser) ];
    }

}

?>