<?php

require_once('Auth.class.php');
require_once('Login.class.php');

class DB {
	public static function get($table, $unit, $key) {
		switch ($table) {
		case 'conf':
		case 'plugins':
			return self::admin_get($unit, $key);
			break;
		case 'users':
			return self::user_get($unit, $key);
			break;
		default:
			return false;
		}
	}
	public static function set($table, $unit, $key, $value) {
		switch ($table) {
		case 'conf':
		case 'plugins':
			return self::admin_get($unit, $key, $value);
			break;
		case 'users':
			return self::user_set($unit, $key, $value);
			break;
		default:
			return false;
		}
	}
	
	private static function user_get($uid, $key) {
		$user = Auth::getObj($uid);
		$logged_in_user = Auth::getObj(Login::isLoggedIn());
		
		$post_key = $key."[$uid]";
		@$value = $_POST[$post_key];
		$editable = $user->canEdit();
		
		switch ($key) {
		case 'auth_uid':
			$value = $user->getUID();
			$editable = false;
			break;
		case 'auth_name':
			$value = $user->getName();
			break;
		case 'auth_user':
			$editable = $editable && $logged_in_user->isAdmin();
			$value = $user->isUser();
			break;
		case 'auth_admin':
			$editable = $editable && $logged_in_user->isAdmin();
			$value = $user->isAdmin();
			break;
		case 'auth_delete':
			$editable = $editable && $logged_in_user->isAdmin();
			$value = false;
			break;
		default:
			$value = $user->getConf($key);
			if ($value===false) $value='';
			break;
		}
		
		return array('value'=>$value,
		             'post_key'=>$post_key,
		             'editable'=>$editable);
	}
	private static function user_set($uid, $key, $value) {
		$user = Auth::getObj($uid);
		
		switch ($key) {
		case 'auth_uid':
			return false;
			break;
		case 'auth_name':
			return $user->setName($value);
			break;
		case 'auth_user':
			return $user->setUser($value=='true');
			break;
		case 'auth_admin':
			return $user->setAdmin($value=='true');
			break;
		case 'auth_delete':
			if ($value=='true') return $user->delete();
		default: 
			return $user->setConf($key, $value);
			break;
		}
	}
	
	private static function admin_get($plugin, $key) {
		global $mm; $db = $mm->database();
		$user = Auth::getObj(Login::isLoggedIn());
		if ($user->isAdmin()) {
			$editable = true;
			switch ($plugin) {
			case 'system':
				$value = $db->getSysConf($key);
				break;
			default:
				$value =  $db->getPluginConf($plugin, $key);
				break;
			}
		} else {
			$editable = false;
			$value = false;
		}
		
		return array('value'=>$value,
		             'post_key'=>'to be implemented',// FIXME
		             'editable'=>$editable);
	}
	private static function admin_set($plugin, $key, $value) {
		global $mm; $db = $mm->database();
		$user = Auth::getObj(Login::isLoggedIn());
		if (!$user->isAdmin()) {
			return false;
		}
		switch ($plugin) {
		case 'system':
			return $db->setSysConf($key, $value);
		default:
			return $db->setPluginConf($plugin, $key, $value);
		}
	}
}