<?php namespace Maze\Config;

class Load
{
	/**
     * global
     *
     * @var array
     */
    static public $global;

    /**
     * object
     *
     * @var object
     */
    static public $object;

    /**
     * get
     * @param string $file
     * @param string $path
     * @param string $project
     *
     * @return mixed
     */
	static public function get($file = 'host', $project = '', $path = 'config')
	{
        if($project)
        {
            $index = $project . '_' . $path . '_' . $file;
        }
        else
        {
            $index = $file;
        }

		if(empty(self::$global[$index]))
		{
            /* 暂时取消对data的读取
			$project = $project ? $project : MAZE_PROJECT_NAME;

			$config = array(MAZE_PATH, MAZE_PROJECT_PATH, MAZE_PATH . 'data/' . $project . '/');
            */
            # 增加对project的读取
            if($project)
            {
                $project = Project::load($project);
            }

            $root = isset($project['path']) ? $project['path'] : MAZE_PROJECT_PATH;

            $config = array(MAZE_PATH, $root);

			self::$global[$index] = array();

			self::file($file, $path);

			foreach($config as $k => $v)
			{
				self::assign($v . $path, $index);
			}

            if($file != $index)
            {
                self::$global[$file] = self::$global[$index];
            }
		}
        
        return self::$global[$index];
	}

	/**
     * object
     * @param string $file
     *
     * @var array
     */
    static private function object($file, $project = '', $path = 'config')
    {
        if($project)
        {
            $index = $project . '_' . $path . '_' . $file;
        }
        else
        {
            $index = $file;
        }

    	if(isset(self::$object[$index]))
    	{
    		return self::$object[$index];
    	}

    	self::$object[$index] = (object) self::$global[$index];

        if($file != $index)
        {
            self::$object[$file] = self::$object[$index];
        }

    	return self::$object[$index];
    }

	/**
     * file
     * @param string $file
     * @param string $path
     *
     * @var array
     */
    static private function file($file, &$path)
    {
    	$path .= '/';
		if($file == 'host' || $file == 'database' || $file == 'debug')
		{
			$path .= $_SERVER['MAZEPHP_SERVER'] . '/';
		}
		$path .= $file . '.php';
    }

	/**
     * assign
     * @param string $file
     *
     * @var array
     */
    static private function assign($file, $index)
    {
		if(is_file($file))
		{
			$config = include($file);
			
			if(is_array($config))
			{
				self::$global[$index] = array_merge(self::$global[$index], $config);
			}
		}
    }
}