<?php
namespace KIF\Core;

use Exception;

const VERSION	= '0.0.1';
const AUTHOR	= 'gaoxiaogang@gmail.com';

class Core {
	static public function autoload($class_name) {
//		var_dump($class_name);
		
		$class_name = str_replace('/', '', $class_name);
		$class_name = str_replace('.', '', $class_name);
		
		$class_name = str_replace('\\', '/', $class_name);
		$tmp_ds_pos = strpos($class_name, '/');
		if ($tmp_ds_pos !== false) {
			$root_namespace = substr($class_name, 0, $tmp_ds_pos);
			$class_name = substr($class_name, $tmp_ds_pos+1);
		} else {
			$root_namespace = '';
		}
		# 当前app的库路径
		if ($root_namespace) {
			if ($root_namespace == 'KIF') {
				$class_path = KIF_PATH . DS . $class_name . '.class.php';
			} else {
				try {# 框架一定会先加载KIF命名空间下的类，所以到这里Config肯定已被外部app初始化了
					$allConfigs = Config::all();
					foreach ($allConfigs as $config) {
						if ($config['Namespace'] == $root_namespace) {
							$app_lib_path = $config['Lib_Path'];
							$class_path = $app_lib_path . DS . $class_name . '.class.php';
							
							break;
						}
					}
				} catch (Exception $e) {
					// do nothing
				}
			}
			if (file_exists($class_path)) {
				return require_once($class_path);
			}
		} else {
			$class_path = KIF_PATH . DS . $class_name . '.class.php';
			if (file_exists($class_path)) {
				return require_once($class_path);
			} else {
				$app_lib_path = Config::getInstance()->get('Lib_Path');
				$class_path = $app_lib_path . DS . $class_name . '.class.php';
				if (file_exists($class_path)) {
					return require_once($class_path);
				}
			}
		}
	}
}