<?php

namespace Jump\Pages;

abstract class AbstractPage {

    protected \Mustache_Engine $mustache;
    private array $outputarray;

    /**
     * Construct an instance of a page.
     *
     * @param \Jump\Config $config
     * @param \Jump\Cache $cache
     * @param string|null $generic param, passed from router.
     */
    public function __construct(protected \Jump\Config $config, protected \Jump\Cache $cache, protected ?string $param = null) {
        $this->hastags = false;
        $this->mustache = new \Mustache_Engine([
            'loader' => new \Mustache_Loader_FilesystemLoader($this->config->get('templatedir')),
            // Create a urlencodde helper for use in template. E.g. using siteurl in icon.php query param.
            'helpers' => array('urlencode' => function($text, $renderer) {
                return urlencode($renderer($text));
            }),
        ]);
    }

    abstract protected function render_content(): string;

    protected function render_header(): string {
        $template = $this->mustache->loadTemplate('header');
        return $template->render([
            'noindex' => $this->config->parse_bool($this->config->get('noindex')),
            'title' => $this->config->get('sitename'),
            'owmapikey' => !!$this->config->get('owmapikey', false),
            'metrictemp' => $this->config->parse_bool($this->config->get('metrictemp'))
        ]);
    }

    protected function render_footer(): string {
        $template = $this->mustache->loadTemplate('footer');
        return $template->render([
            'showclock' => $this->config->parse_bool($this->config->get('showclock'))
        ]);
    }

    protected function render_page(): void {
        $this->outputarray = [
            $this->render_header(),
            $this->render_content(),
            $this->render_footer(),
        ];
    }

    public function get_output(): string {
        $this->render_page();
        return implode('', $this->outputarray);
    }

}