<?php

declare(strict_types=1);

/**
 * @author Robert Strutts <Bob_586@Yahoo.com>
 * @copyright (c) 2025, Robert Strutts
 * @license MIT
 */

namespace CodeHydrater\services;

use CodeHydrater\bootstrap\registry as Reg;
use CodeHydrater\php_file_cache as FileCache;
use Liquid\{Liquid, Template, Context};
use Liquid\Cache\Local;

final class liquid_templates {
    private $liquid;
    private $dir;
    private $extension = 'tpl';

    public function __construct(private $use_local_cache = false, string $template_extension = 'tpl') {
        $this->extension = $template_extension;
        if (! Reg::get('loader')->is_loaded('Liquid')) {
           Reg::get('loader')->add_namespace('Liquid', CodeHydrater_PROJECT . 'vendor/liquid/liquid/src/Liquid');
        }

        Liquid::set('INCLUDE_SUFFIX', $template_extension);
        Liquid::set('INCLUDE_PREFIX', '');
        
        $this->dir = CodeHydrater_PROJECT . 'views/liquid';
        $this->liquid = new Template($this->dir);
    }

    public function whitespace_control() {
        /* Force whitespace control to be used by switching tags from {%- to {%
         * Also, will error out if you try {%- 
         * Need to figure out how to turn back on whitespaces with {%@ errors! not important...
         */
        Liquid::set('TAG_START', '(?:{%@)|\s*{%');
        Liquid::set('TAG_END', '(?:@%}|%}\s*)');
    }

    public function parse(string $source) {
        return $this->liquid->parse($source);
    }

    public function parse_file(string $file) {
        $safe_file = \CodeHydrater\security::filter_uri($file);
        if ($this->use_local_cache) {
            $cache = new FileCache(BaseDir . "/protected/runtime/liquid_cache");
        
            $templateName = $safe_file . "." . $this->extension;
            $templatePath = $this->dir . "/". $safe_file . "." . $this->extension;
            
            $templateSource = file_get_contents($templatePath);
            $cached = $cache->get($templateName);
            if (!$cached) {
                $this->liquid->parseFile($safe_file);
                $cache->set($templateName, $this->liquid);
            } else {
                $this->liquid = $cached;
    }
        } else {
            $this->liquid->parseFile($safe_file);
        }
    }

    public function render(array $assigns = array(), $filters = null, array $registers = array()): string {
        return $this->liquid->render($assigns, $filters, $registers);
    }

    public function get_engine() {
        return $this->liquid;
    }
}