<?php
namespace YTKNS;

final class Template {
    private static array $vars = [];

    public static function setVar(string $name, $value) {
        return $vars[$name] = $value;
    }

    public static function prefixArray(array $input): array {
        $output = [];

        foreach($input as $key => $val)
            $output[':' . $key] = $val;

        return $output;
    }

    public static function renderRaw(string $path, array $vars = []): string {
        $vars = self::prefixArray(array_merge(self::$vars, $vars));
        $tpl = file_get_contents(YTKNS_TPL . '/' . $path . '.html');
        $tpl = strtr($tpl, $vars);
        return $tpl;
    }

    public static function render(string $path, array $vars = []): void {
        echo self::renderRaw($path, $vars);
    }

    public static function renderSet(string $path, array $varSets = []): string {
        $html = '';
        $tpl = file_get_contents(YTKNS_TPL . '/' . $path . '.html');

        foreach($varSets as $vars)
            $html .= strtr($tpl, self::prefixArray($vars));

        return $html;
    }
}