<?php
class View {

	// Path to templates dir
	private $path = 'templates';
	// Name of template, default: default
	private $template = 'default';

	// Stores variables for templates
	private $_ = array();

	/**
	 * Assign a key/val pair for the template
	 *
	 * @param String $key Key
	 * @param String $value Variable
	 */
	public function assign($key, $value) {
		$this->_[$key] = $value;
	}


	/**
	 * Sets templates name
	 *
	 * @param String $template Name of template
	 */
	public function setTemplate($template = 'default') {
		$this->template = $template;
	}


	/**
	 * Load template and return result
	 *
	 * @return string Output of template
	 */
	public function loadTemplate() {
		$tpl = $this->template;

		$file = $this->path . DIRECTORY_SEPARATOR . $tpl . '.php';

		if(file_exists($file)) {
			// Write output to buffer
			ob_start();

			extract($this->_); // make vars available via name not array, forbidden vars: $tpl, $file, $output

			// Include template and save output to $output
			include($file);
			$output = ob_get_contents();
			ob_end_clean();

			return $output . PHP_EOL;
		}
		else {
			// Couldn't find template
			// TODO: Throw exception
			// TODO: test if deprecated (see: controller display())
			ErrorHandler::$eh->addError("Could not load template: " . $tpl);
		}
	}
}
?>