<?php

/*

  Belokan Micro Framework

  Licensed under GNU GPL

  http://gitorious.org/belokan

  ---

  Belokan/View.php:

  View system

*/

class Belokan_View {

  private

    $_plugins,

    $_data,

    $_logBelokan,

    $_log,

    $_viewDir,

    $_layoutDir,

    $_format;

  public function __construct ()

  {

    $this->_plugins = null;

    $this->_data = array();

    $config = Belokan_Config::getInstance();

    $this->_logBelokan = $config->get('log', 'belokan');

    $this->_log = Belokan_Log::getInstance();

    $this->_viewsDir = $config->get('dir', 'views');

    $this->_layoutDir = $this->_viewsDir.'_layouts/';

    $this->_format = Belokan_Request::getInstance()->getFormat();

    $this->_intl = $config->get('intl', 'enabled');

  }

  public function __get ($var)

  {

    if (isset($this->_data[$var])) return $this->_data[$var];

    return null;

  }

  public function __set ($var, $value)

  {

    return $this->_data[$var] = $value;

  }

  public function __isset ($var)

  {

    return isset($this->_data[$var]);

  }

  public function __unset ($var)

  {

    unset($this->_data[$var]);

  }

  public function __call ($plugin_name, $args)

  {

    if ($this->_plugins == null)

      $this->_plugins = new Belokan_Plugins;

    if (!$this->_plugins->isLoaded($plugin_name)) {

      if ($this->_plugins->load($plugin_name) === false) {

        if ($this->_logBelokan)

          $this->_log->add('Belokan', 'ERROR: Failed to load plugin ('.$plugin_name.').');

        return null;

      }

    }

    $plugin = $this->_plugins->get($plugin_name);

    $defaultMethod = $plugin_name;

    if (method_exists($plugin, $defaultMethod))

      return call_user_func_array(array($plugin, $defaultMethod), $args);

    return $plugin;

  }

  public function renderLayoutBefore ($layout)

  {

    if ($layout == null) return;

    $layoutBefore = $this->_layoutDir.$layout.'/before.p'.$this->_format;

    $layoutBeforeLocal = $layoutBefore.'.'.Belokan_Config::getInstance()->get('intl', 'lang');

    $layoutBeforeDefault = $layoutBefore.'.'.Belokan_Config::getInstance()->get('intl', 'default');

    if ($this->_intl && file_exists($layoutBeforeLocal))

      include $layoutBeforeLocal;

    else if (file_exists($layoutBeforeDefault))

      include $layoutBeforeDefault;

    else if (file_exists($layoutBefore))

      include $layoutBefore;

    else if ($this->_logBelokan)

      $this->_log->add('Belokan', 'ERROR: Layout before file ('.$layoutBefore.') not found.');

  }

  public function renderView ($view) {

    $viewFile = $this->_viewsDir.$view.'.p'.$this->_format;

    $viewFileLocal = $viewFile.'.'.Belokan_Config::getInstance()->get('intl', 'lang');

    $viewFileDefault = $viewFile.'.'.Belokan_Config::getInstance()->get('intl', 'default');

    if ($this->_intl && file_exists($viewFileLocal))

      include $viewFileLocal;

    else if (file_exists($viewFileDefault))

      include $viewFileDefault;

    else if (file_exists($viewFile))

      include $viewFile;

    else if ($this->_logBelokan)

      $this->_log->add('Belokan', 'ERROR: View file ('.$viewFile.') not found.');

  }

  public function renderLayoutAfter ($layout) {

    if ($layout == null) return;

    $layoutAfter = $this->_layoutDir.$layout.'/after.p'.$this->_format;

    $layoutAfterLocal = $layoutAfter.'.'.Belokan_Config::getInstance()->get('intl', 'lang');

    $layoutAfterDefault = $layoutAfter.'.'.Belokan_Config::getInstance()->get('intl', 'default');

    if ($this->_intl && file_exists($layoutAfterLocal))

      include $layoutAfterLocal;

    else if (file_exists($layoutAfterDefault))

      include $layoutAfterDefault;

    else if (file_exists($layoutAfter))

      include $layoutAfter;

    else if ($this->_logBelokan)

      $this->_log->add('Belokan', 'ERROR: Layout after file ('.$layoutAfter.') not found.');

  }

  public function loadPlugin ($plugin_name, $plugin=null, $plugin_file=null)

  {

    if ($this->_plugins == null)

      $this->_plugins = new Belokan_Plugins;

    return $this->_plugins->load($plugin_name, $plugin, $plugin_file);

  }

  public function getPlugin ($plugin_name)

  {

    return $this->_plugins->get($plugin_name);

  }

  public function _ ($plugin_name)

  {

    return $this->_plugins->get($plugin_name);

  }

  public function setFormat ($format)

  {

    $this->_format = $format;

  }

}