<?php

/**
 * @author kylekatarnls
 */
class Jade
{
    protected $CI;
    protected $jade;
    protected $view_path;

    public function __construct(array $options = null)
    {
        if (is_null($options)) {
            $options = defined('static::SETTINGS') ? ((array) static::SETTINGS) : array();
        }
        if (isset($options['view_path'])) {
            $this->view_path = $options['view_path'];
            unset($options['view_path']);
        } else {
            $this->view_path = APPPATH.'views';
        }
        if (isset($options['cache'])) {
            if ($options['cache'] === true) {
                $options['cache'] = APPPATH.'cache/jade';
            }
            if (!file_exists($options['cache']) && !mkdir($options['cache'], 0777, true)) {
                throw new Exception('Cache folder does not exists and cannot be created.', 1);
            }
        }
        $this->CI = &get_instance();
        if (!class_exists('Jade\\Jade')) {
            spl_autoload_register(function ($className) {
                if (strpos($className, 'Jade\\') === 0) {
                    $path = __DIR__.DIRECTORY_SEPARATOR.str_replace('\\', DIRECTORY_SEPARATOR, $className).'.php';
                    if (file_exists($path)) {
                        include_once $path;
                    }
                }
            });
        }
        $this->jade = new Jade\Jade($options);
    }

    public function getEngine()
    {
        return $this->jade;
    }

    public function view($view, array $data = array(), $return = false)
    {
        if (is_array($view) || $view === true) {
            $return = (bool) $data;
            $data = $view;
            $view = null;
        }
        if ($data === true) {
            $data = array();
            $return = true;
        }
        if (is_null($view)) {
            $view = $this->router->class.DIRECTORY_SEPARATOR.$this->router->method;
        }
        if (!$this->jade) {
            $this->settings();
        }
        $view = $this->view_path.DIRECTORY_SEPARATOR.$view.'.pug';
        if (!file_exists($view)) {
            $isIndex = (strtr('\\', '/', substr($view, -11)) === '/index.pug');
            $view = $isIndex ? substr($view, 0, -11).'.pug' : substr($view, 0, -5).DIRECTORY_SEPARATOR.'index.pug';
            if (!file_exists($view)) {
                $view = $this->view_path.DIRECTORY_SEPARATOR.$view.'.jade';
                if (!file_exists($view)) {
                    $isIndex = (strtr('\\', '/', substr($view, -11)) === '/index.jade');
                    $view = $isIndex ? substr($view, 0, -11).'.jade' : substr($view, 0, -5).DIRECTORY_SEPARATOR.'index.jade';
                }
            }
        }
        $data = array_merge($this->CI->load->get_vars(), $data);
        if ($return) {
            return $this->jade->render($view, $data);
        } else {
            echo $this->jade->render($view, $data);
        }
    }
}