<?php
require_once('album.inc.php');
require_once('albumutil.php');
require_once '../include/SYNOPhotoEA.php';

define("PHOTO_ACTION_TMP", '/tmp/photostation_');
define("PHOTO_ACTION_ALBUM_MOVE_KEY", 'SYNOPS_ALBUM_MOVE');
define("PHOTO_ACTION_ALBUM_DEL_KEY", 'SYNOPS_ALBUM_DEL');

class AlbumAPI extends WebAPI {
	function __construct() {
		parent::__construct(SZ_WEBAPI_API_DESCRIPTION_PATH);
	}

	protected function Process() {
		if (!strcasecmp($this->method, "list")) {
			$force = "true" === $_REQUEST['force_update'] ? true : false;

			csSYNOPhotoDB::GetDBInstance()->SetSessionCache($force);
			session_write_close();
			$this->AlbumList();
		} elseif (!strcasecmp($this->method, "getinfo")) {
			csSYNOPhotoDB::GetDBInstance()->SetSessionCache();
			session_write_close();
			$this->GetInfo();
		} else {
			csSYNOPhotoDB::GetDBInstance()->SetSessionCache(true);
			csSYNOPhotoMisc::CheckSessionTimeOut(true);

			if (!strcasecmp($this->method, "create")) {
				$this->Create();
			} elseif (!strcasecmp($this->method, "edit")) {
				$this->Edit();
			} elseif (!strcasecmp($this->method, "delete")) {
				csSYNOPhotoDB::GetDBInstance()->ExpireSessionCache();
				session_write_close();
				$this->Delete();
			} elseif (!strcasecmp($this->method, "move")) {
				csSYNOPhotoDB::GetDBInstance()->ExpireSessionCache();
				session_write_close();
				$this->Move();
			} elseif (!strcasecmp($this->method, "arrangeitem")) {
				$this->ArrangeItem();
			} elseif (!strcasecmp($this->method, "cleararrangeitem")) {
				$this->ClearArrangeItem();
			} elseif (!strcasecmp($this->method, "cancel")) {
				session_write_close();
				$this->Cancel();
			}
		}
	}

    private function GetParams_Info() {
        $params = array();

        if (!isset($_REQUEST['id']) || '' === $_REQUEST['id']) {
            $params['id'] = null; // null means shared root folder
        } else {
            $split = explode(',', $_REQUEST['id']);
            $params['id'] = array();
            foreach ($split as $albumID) {
                $id = $this->DecodeItemId($albumID, 'album_');
                if (false === $id) {
                    return false;
                }
				$params['id'][$albumID] = $id;
            }
        }
		$params['password'] = (isset($_REQUEST['password'])) ? $_REQUEST['password'] : null;
        $params['additional'] = explode(',', $_REQUEST['additional']);
        $params['ignore'] = explode(',', $_REQUEST['ignore']);

        return $params;
    }

    private function GetParams_Create_Edit() {
        $params = array();

        $params['name'] = $_REQUEST['name'];
        $params['id'] = null; // null means shared root folder
        if (isset($_REQUEST['id']) && '' !== $_REQUEST['id']) {
            $id = $this->DecodeItemId($_REQUEST['id'], 'album_');
            if (false === $id) {
                return false;
            }
            $params['id'] = $id;
        }
        $params['title'] = (isset($_REQUEST['title'])) ? $_REQUEST['title'] : null;
		$params['description'] = (isset($_REQUEST['description'])) ? $_REQUEST['description'] : null;
		$params['inheritParent'] = (isset($_REQUEST['inheritParent']) && 'true' === $_REQUEST['inheritParent']) ? true : false;
        $params['sort_by'] = (isset($_REQUEST['sort_by'])) ? $_REQUEST['sort_by'] : null;
        if ((null !== $params['sort_by']) && !in_array($params['sort_by'], array('filename', 'takendate', 'createdate', 'preference', 'default'))) {
            return false;
        }
        $params['sort_direction'] = (isset($_REQUEST['sort_direction'])) ? $_REQUEST['sort_direction'] : null;
        if ((null !== $params['sort_direction']) && !in_array($params['sort_direction'], array('asc', 'desc'))) {
            return false;
        }
        $params['allow_comment'] = (isset($_REQUEST['allow_comment'])) ? $_REQUEST['allow_comment'] : null;
        if ((null !== $params['allow_comment']) && !in_array($params['allow_comment'], array('true', 'false'))) {
            return false;
        }
        $params['type'] = (isset($_REQUEST['type'])) ? $_REQUEST['type'] : null;
        if ((null !== $params['type']) && !in_array($params['type'], array('public', 'private', 'password'))) {
            return false;
        }
        $params['password'] = (isset($_REQUEST['password'])) ? $_REQUEST['password'] : null;

        $params['conversion'] = (isset($_REQUEST['conversion'])) ? $_REQUEST['conversion'] : null;
        if ((null !== $params['conversion']) && !in_array($params['conversion'], array('true', 'false'))) {
            return false;
        }

        return $params;
    }

    private function GetTagIdString($tags)
    {
        $arr = explode(',', $tags);
        $idArr = array();
        foreach ($arr as $tag) {
            $split = explode('tag_', $tag);
            if (2 !== count($split)) {
                return Error;
            }
            array_push($idArr, $split[1]);
        }
        $idString = implode(',', $idArr);
    Error:
        return $idString;
	}

	private function GetAlbumString($albums) {
		$params = array();
		$idArr = array();
		$idString = '';
		$items = explode(',', $albums);
		foreach($items as $item) {
			$arr = explode('_', $item);
			if (2 !== count($arr) || 'album' !== $arr[0]) {
				return $idString;
			}
			$shareName = trim($arr[1]);
			if ('' !== $shareName) {
				$shareName = pack('H*', $arr[1]);
				array_push($params, $shareName);
			}
		}
		$albums = Album::GetBySharename($params);
		foreach ($albums as $album) {
			$id = $album['shareid'];
			array_push($idArr, $id);
		}
		$idString = implode(',', $idArr);
		return $idString;
	}

	private function GetExifString($values, $prefix) {
		$arr = explode(',', $values);
		$idString = '';
		$idArr = array();
		foreach($arr as $value) {
			$split = explode($prefix, $value);
			if (2 !== count($split)) {
				goto Error;
			}
			array_push($idArr, $split[1]);
		}
		$idString = implode(',', $idArr);
	Error:
		return $idString;
	}

    private function GetParams_list() {

        $params = array();

        if (!isset($_REQUEST['offset']) || !isset($_REQUEST['limit']) || !isset($_REQUEST['type'])) {
            // FIXME - filter type
            return false;
        }
        $params['offset'] = $_REQUEST['offset'];
        $params['limit'] = $_REQUEST['limit'];
        $params['type'] = array();
        $arr = explode(',', $_REQUEST['type']);
        foreach ($arr as $item) {
            if (!in_array($item, array('album', 'photo', 'video'))) {
                return false;
            }
            array_push($params['type'], $item);
        }

        $params['id'] = (isset($_REQUEST['id'])) ? $_REQUEST['id'] : null; // null means shared root folder
		$params['albumName'] = '/';
        if (isset($_REQUEST['id'])) {
            $split = explode('_', $_REQUEST['id']);  // ex: album_id
            $params['id'] = $split[1];
			$params['albumName'] = @pack('H*', $split[1]);
        }
        $params['password'] = (isset($_REQUEST['password'])) ? $_REQUEST['password'] : null;

        $params['ignore'] = explode(',', $_REQUEST['ignore']);
        // additional operator
        $params['additional'] = array();
        $params['additional'] = explode(',', $_REQUEST['additional']);

        // sort operator
        $params['sort_by'] = isset($_REQUEST['sort_by']) ? $_REQUEST['sort_by'] : 'preference';
        if (!in_array($params['sort_by'], array('filename', 'takendate', 'createdate', 'preference', 'mtime'))) {
            return false;
        }

        if (!isset($_REQUEST['sort_direction'])) {
            $value = csSYNOPhotoMisc::GetConfigDB("album", "thumb_sort_order", "photo_config");
            $params['sort_direction'] = AlbumAPIUtil::ConvertToSortDirection($value);
        } else {
            $params['sort_direction'] = $_REQUEST['sort_direction'];
        }
        if (!in_array($params['sort_direction'], array('asc', 'desc'))) {
            return false;
        }

        // filter operator
        $params['keyword'] = (isset($_REQUEST['keyword'])) ? $_REQUEST['keyword'] : null;
        if (isset($_REQUEST['keyword'])) {
            $default = 'all';
            $params['keyword_op'] = (isset($_REQUEST['keyword_op'])) ? $_REQUEST['keyword_op'] : $default;
            if (isset($params['keyword_op']) && !in_array($params['keyword_op'], array('any', 'all', 'exact'))) {
                return false;
            }
        }
        $params['date'] = (isset($_REQUEST['date'])) ? $_REQUEST['date'] : null;
        if (isset($_REQUEST['date'])) {
            $default = 'taken';
            $params['date_op'] = (isset($_REQUEST['date_op'])) ? $_REQUEST['date_op'] : $default;
            if (isset($params['date_op']) && !in_array($params['date_op'], array('taken', 'upload', 'recently_add', 'recently_comment'))) {
                return false;
            }
        }
        $params['people_tag'] = (isset($_REQUEST['people_tag'])) ? $_REQUEST['people_tag'] : null;
        if (isset($_REQUEST['people_tag'])) {
            $params['people_tag'] = $this->GetTagIdString($_REQUEST['people_tag']);
            $default = 'all';
            $params['people_tag_op'] = (isset($_REQUEST['people_tag_op'])) ? $_REQUEST['people_tag_op'] : $default;
            if (isset($params['people_tag_op']) && !in_array($params['people_tag_op'], array('all', 'any'))) {
                return false;
            }
        }
        $params['geo_tag'] = (isset($_REQUEST['geo_tag'])) ? $_REQUEST['geo_tag'] : null;
        if (isset($_REQUEST['geo_tag'])) {
            $params['geo_tag'] = $this->GetTagIdString($_REQUEST['geo_tag']);
            $default = 'all';
            $params['geo_tag_op'] = (isset($_REQUEST['geo_tag_op'])) ? $_REQUEST['geo_tag_op'] : $default;
            if (isset($params['geo_tag_op']) && !in_array($params['geo_tag_op'], array('all', 'any'))) {
                return false;
            }
        }
        $params['desc_tag'] = (isset($_REQUEST['desc_tag'])) ? $_REQUEST['desc_tag'] : null;
        if (isset($_REQUEST['desc_tag'])) {
            $params['desc_tag'] = $this->GetTagIdString($_REQUEST['desc_tag']);
            $default = 'all';
            $params['desc_tag_op'] = (isset($_REQUEST['desc_tag_op'])) ? $_REQUEST['desc_tag_op'] : $default;
            if (isset($params['desc_tag_op']) && !in_array($params['desc_tag_op'], array('all', 'any'))) {
                return false;
            }
		}
		$params['albums'] = (isset($_REQUEST['albums'])) ? $_REQUEST['albums'] : null;
		if (isset($_REQUEST['albums'])) {
			$params['albums'] = $this->GetAlbumString($_REQUEST['albums']);
		}
		foreach(SmartAlbum::$exif2IdPrefix as $label => $value) {
			if (isset($_REQUEST[$label])) {
				$op = $label.'_op';
				$params[$label] = $this->GetExifString($_REQUEST[$label], $value.'_');
				$defaultOp = 'any';
				$params[$op] = (isset($_REQUEST[$op])) ? $_REQUEST[$op] : $default;
				if (isset($params[$op]) && 'any' !== $params[$op]) {
					return false;
				}
			}
		}

        return $params;
    }

	private function GetParams_ArrangeItem()
	{
		if (!isset($_REQUEST['offset']) || !isset($_REQUEST['limit']) || !isset($_REQUEST['item_id'])) {
			return false;
		}

		$params = array();
		$params['id'] =  (isset($_REQUEST['id'])) ? $_REQUEST['id'] : null; // null means shared root folder
		if (null !== $params['id'] && '' !== $params['id']) {
			$split = explode('_', $params['id']);  // ex: 'album_id'
			if (2 !== count($split)) {
				return false;
			}
			if ('album' !== $split[0]) {
				return false;
			}
			$params['albumName'] = @pack('H*', $split[1]);
		} else {
			$params['albumName'] = '/';
		}

		$params['offset'] = $_REQUEST['offset'];
		$params['limit'] = $_REQUEST['limit'];

		$params['item_id'] = array();
		$params['item_name'] = array();
		$items = explode(',', $_REQUEST['item_id']);
		// item must be photo or video, and make sure album must be ahead of photo and video
		foreach ($items as $item) {
			$arr = explode('_', $item);
			if (!in_array($arr[0], array('album', 'photo', 'video'))) {
				return false;
			}
			if ('photo' === $arr[0] || 'video' === $arr[0]) {
				$filename = @pack('H*', $arr[2]);
				array_push($params['item_name'], $filename);
			} elseif ('album' === $arr[0]) {
				$foldername = @pack('H*', $arr[1]);
				array_push($params['item_name'], basename($foldername).SYNOPHOTO_USER_SORT_ALBUM_SYMBOL);
			}
		}
		$params['item_id'] = $items;

		return $params;
	}

	private function GetParams_ClearArrangeItem()
	{
		$params = array();
		$params['id'] =  (isset($_REQUEST['id'])) ? $_REQUEST['id'] : null; // null means shared root folder
		if (null !== $params['id'] && '' !== $params['id']) {
			$split = explode('_', $params['id']);  // ex: 'album_id'
			if (2 !== count($split)) {
				return false;
			}
			if ('album' !== $split[0]) {
				return false;
			}
			$params['albumName'] = @pack('H*', $split[1]);
		} else {
			$params['albumName'] = '/';
		}

		return $params;
	}

    private function ConvertSmartCondition($params) {

        $matchPattern = array('id', 'keyword', 'keyword_op', 'date', 'date_op', 'people_tag', 'people_tag_op', 'geo_tag', 'geo_tag_op', 'desc_tag', 'desc_tag_op', 'albums');
        $formatPattern = array('dir', 'k', 'k_op', 'd', 'd_op', 'pt', 'pt_op', 'gt', 'gt_op', 'dt', 'dt_op', 'albums');
        $condition = array();
        foreach($matchPattern as $field) {
            if (isset($params[$field])) {
                $index = array_keys($matchPattern, $field);
                $condition[$formatPattern[$index[0]]] = $params[$field];
            }
		}
		foreach(SmartAlbum::$exif2IdPrefix as $label => $value) {
			if (isset($params[$label])) {
				$condition[$label] = $params[$label];
				$op = $label.'_op';
				$condition[$op] = $params[$op];
			}
		}
        return $condition;
    }

    private function CheckRootSharedFolder($sharePath) {
        if ('' === $sharePath) {
            return true;
        }
        return false;
    }

    private function CheckAlbumAccessRight($sharePath, $password) {
        $ret = WEBAPI_ERR_NONE;
        // admin
        if (isset($_SESSION[SYNOPHOTO_ADMIN_USER]['admin_syno_user'])) {
            return WEBAPI_ERR_NONE;
        }

        // not root share folder
        if (!$this->CheckRootSharedFolder($sharePath)) {
            $albumInfo = csSYNOPhotoDB::GetDBInstance()->GetAlbum($sharePath);
            if (empty($albumInfo['password'])) {
                // Check accessible
                if (!csSYNOPhotoMisc::CheckAlbumAccessible($sharePath)) {
                    $ret = PHOTOSTATION_ALBUM_NO_ACCESS_RIGHT;
                }
            } else {
                if (!isset($_SESSION[SYNOPHOTO_ADMIN_USER]['password_pass_album'][$sharePath])) {
                    if ((md5($password) !== $albumInfo['password'])) {
                        $ret = PHOTOSTATION_ALBUM_PASSWORD_ERROR;
                    } else {
						csSYNOPhotoMisc::PhotoSessionStart();
                        $_SESSION[SYNOPHOTO_ADMIN_USER]['password_pass_album'][$sharePath] = md5($password);
                        session_write_close();
                    }
                }
            }
        }
        return $ret;
    }

    private function FormItems($itemList, $params) {
        $items = array();
        $allowComment = AlbumAPIUtil::IsAlbumCommentalbGlobal();
        $showAlbumHit = AlbumAPIUtil::IsShowAlbumHit();
        $needThumbSize = in_array('thumb_size', $params['additional']);
        $types = array(0 => 'album', 1 => 'photo', 2 => 'video');
        $conversionDirs = array();
		$decorator = array(
			'album' => 'Decorator::AlbumFormula',
			'photo'	=> 'Decorator::PhotoFormula',
			'video'	=> 'Decorator::VideoFormula'
		);
        foreach($itemList['items'] as $item_node) {
			$type = $types[$item_node['itemType']];
			$func = $decorator[$type];

			$item = array();
			if ($func) {
				$item = call_user_func($func, $item_node, array(
					'allowComment'	=> $allowComment,
					'showAlbumHit'	=> $showAlbumHit,
					'param'			=> $params,
					'needThumbSize'	=> $needThumbSize
				));
			}

            $items[] = $item;
        }

        return $items;
    }

    private function GetAlbumShareName($value) {
        if (empty($value)) {
            return false;
        }

        $shareNameList = array();
        $albumIDs = explode(',', $value);
        foreach ($albumIDs as $albumID) {
            $arr = explode('album_', $albumID);
            if (2 !== count($arr)) {
                return false;
            }
            $albumName = trim(@pack('H*', $arr[1]));
            if (!$albumName || '/' === $albumName) {
                return false;
            }
            array_push($shareNameList, $albumName);
        }
        return $shareNameList;
    }

    private function GetInfo() {
        // Get and check params
        $params = array();
        $params = $this->GetParams_Info();
        if (!$params) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }
        $needThumbSize = in_array('thumb_size', $params['additional']);
        $items = array();
        if (null === $params['id']) {
            $item = AlbumAPIUtil::GetRootAlbumInfo($params);
            array_push($items, $item);
        } else {
            $allowComment = AlbumAPIUtil::IsAlbumCommentalbGlobal();
            $showHits = AlbumAPIUtil::IsShowAlbumHit();
            $albums = Album::GetBySharename(array_values($params['id']));
            foreach ($params['id'] as $id => $shareName) {
				$item = Decorator::AlbumFormula($albums[$shareName], array(
						'allowComment' => $allowComment,
						'showAlbumHit' => $showHits,
						'needThumbSize' => $needThumbSize,
						'param' => $params
					));
                array_push($items, $item);
            }
        }

        $resp['items'] = $items;
        $this->SetResponse($resp);
    End:
        return;
    }

    private function AlbumList() {
        // Get and check params
        $params = array();
        $params = $this->GetParams_list();
        if (!$params) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }
        $sharePath = @pack('H*', $params['id']);
        // Check access right
        if (WEBAPI_ERR_NONE != ($error_code = $this->CheckAlbumAccessRight($sharePath, $params['password']))) {
            $this->SetError($error_code);
            goto End;
        }

		$hasExifCond = false;
		foreach(SmartAlbum::$exif2IdPrefix as $label => $value) {
			if (isset($params[$label])) {
				$hasExifCond = true;
				break;
			}
		}
		// search operator
        $itemsSort = array();
		if (isset($params['keyword']) || isset($params['date']) || isset($params['people_tag']) || isset($params['geo_tag']) || isset($params['desc_tag'])
			|| isset($params['albums']) || $hasExifCond) {
			$smart_condition = $this->ConvertSmartCondition($params);
			$itemList = csSYNOPhotoBrowse::GetBrowseInstance()->GetSearchThumbList_new($smart_condition, $params['offset'], $params['limit']);
            // filter type
            $filterItems = AlbumAPIUtil::FilterByType($itemList['items'], $params['type']);
			$total = $itemList['itemCount'];
            // FIXME - sorting for search operator
            $itemsSort['items'] = $filterItems;
        } else {
			// album operator
			csSYNOPhotoMisc::PhotoSessionStart();
			$_SESSION[SYNOPHOTO_ADMIN_USER]['album_thumb_sort_by'] = $params['sort_by'];
			$_SESSION[SYNOPHOTO_ADMIN_USER]['album_thumb_sort_order'] = $params['sort_direction'];
            if (isset($params['id'])) {
                csSYNOPhotoAlbum::GetAlbumInstance()->AddHitTimes($sharePath);
            }
			session_write_close();
            $itemsSort = array();
            $itemsSort = csSYNOPhotoBrowse::GetBrowseInstance()->GetThumbList_New(isset($params['id']) ? $sharePath : '/', (int)$params['offset'], (int)$params['limit'], $params['sort_by'], $params['sort_direction'], !in_array('album', $params['type']), !in_array('video', $params['type']), !in_array('photo', $params['type']));
            $total = $itemsSort['itemCount'];
        }

        $resp = array();
        $resp['total'] = $total;
        $offset = (0 > (int)$params['limit']) ? $resp['total'] : $params['offset'] + $params['limit'];
        $resp['offset'] = ($offset > $resp['total']) ?  $resp['total'] : $offset;
        $resp['items'] = $this->FormItems($itemsSort, $params);
        $this->SetResponse($resp);

    End:
        return;
    }

    private function Create() {
        if (!isset($_REQUEST['name'])) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }

        // name can't include [.] start or [\/:*?<>|]
        if (preg_match('/[\\\\\/:\*\?<>\|]/', $_REQUEST['name'], $matches) || preg_match('/^\./', $_REQUEST['name'], $matches)) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }

        // Get and check params
        $params = array();
        $params = $this->GetParams_Create_Edit();
        if (!$params) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }

        // get parent share name
		$parentShareName = null === $params['id'] ? '' : $params['id'];

        $ret = AlbumAPIUtil::SYNOPHOTO_ADMIN_AddAlbum($parentShareName, $params);
		$username = GetLoginUsername();
		$parentShareName = $parentShareName === '' ? '/' : $parentShareName;
		if (is_numeric($ret) && $ret < 0) {
			PhotoLog::Add("Failed to create album [".$_REQUEST['name']."] in [".$parentShareName."].", false, strtolower($username));
		} else {
			PhotoLog::Add("Album [".$_REQUEST['name']."] was created in [".$parentShareName."].", true, strtolower($username));
		}
        if (-1 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_CREATE_FAIL);
            goto End;
        } elseif (-2 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_NO_UPLOAD_RIGHT);
            goto End;
        } elseif (-3 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_NOT_ADMIN);
            goto End;
        } elseif (-4 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_HAS_EXIST);
            goto End;
        }

        $row = csSYNOPhotoDB::GetDBInstance()->GetFieldByKeyValue('sharename', 'photo_share', 'shareid', $ret);
        $resp['id'] = $this->EncodeItemId($row['sharename'], "album_");
        $this->SetResponse($resp);
    End:
        return;
    }

    private function Delete() {
        if (!isset($_REQUEST['id'])) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }
        if (false === ($shareNameList = $this->GetAlbumShareName($_REQUEST['id']))) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }

        $cancelPath = PHOTO_ACTION_TMP.md5(PHOTO_ACTION_ALBUM_DEL_KEY.$_REQUEST['id']);
        $failCount = 0;
        foreach ($shareNameList as $shareName) {
            self::OutputSingleSpace();
            if (file_exists($cancelPath)) {
                @unlink($cancelPath);
                break;
            }

            $dirName = dirname($shareName);
            $dirName = ('.' === $dirName) ? '/' : $dirName;
            if (!csSynoPhotoMisc::CheckAlbumManageable($dirName)) {
                $failCount++;
                continue;
            }
			$result = Album::DeleteOneBySharename($shareName);
			if (!$result[0]) {
				continue;
			}
			PhotoLog::Add("Album [".$shareName."] was deleted.", true, strtolower(GetLoginUsername()));
        }
        if ($failCount === count($shareNameList)) {
            $this->SetError(PHOTOSTATION_ALBUM_NO_MANAGE_RIGHT);
            goto End;
        }
        SYNOPHOTO_LABEL_UTIL_Check_Photo_Label();

    End:
        return;
    }

    private function Edit() {
        // Get and check params
        $params = array();
        $params = $this->GetParams_Create_Edit();
        if (!$params || null === $params['id']) {
            $this->SetError(WEBAPI_ERR_BAD_REQUEST);
            goto End;
        }
 
        $shareName = $params['id'];

        $ret = AlbumAPIUtil::SYNOPHOTO_ADMIN_UpdateAlbum($shareName, $params);
        if (-1 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_EDIT_FAIL);
            goto End;
        } elseif (-2 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_NO_MANAGE_RIGHT);
            goto End;
        } elseif (-3 === $ret) {
            $this->SetError(PHOTOSTATION_ALBUM_NOT_ADMIN);
            goto End;
        }
    End:
        return;
	}

	private function GetParams_Move() {
		$param = array();

		/* return when lack of params */
		if (!isset($_REQUEST['id']) || !isset($_REQUEST['sharepath']) || !isset($_REQUEST['duplicate'])) {
			return array(false, WEBAPI_ERR_BAD_REQUEST);
		}

		/* set params */
		if (preg_match('/^album_/', $_REQUEST['sharepath'])) {
			$sharepath = trim($this->DecodeItemId($_REQUEST['sharepath'], "album_"));
		} else {
			$sharepath = trim(@pack('H*', $_REQUEST['sharepath']));
		}
		// $sharepath could be empty
		$dirpath = pathinfo($sharepath, PATHINFO_DIRNAME);
		if (!$dirpath || '.' === $dirpath) {
			$dirpath = '';
		}

		$destDirs = array();
		$checkDestDir = $sharepath;
		while('.' !== $checkDestDir && '' !== $checkDestDir) {
			$destDirs[] = $checkDestDir;
			$checkDestDir = pathinfo($checkDestDir, PATHINFO_DIRNAME);
		}

		$requestIds = explode(',', $_REQUEST['id']);
		$ids = array();
		foreach($requestIds as $idStr) {
			$id_arr = explode('_', $idStr);
			$albumName = trim(@pack('H*', $id_arr[1]));
			if (!$albumName || '/' === $albumName) {
				return array(false, WEBAPI_ERR_BAD_REQUEST);
			}

			$sourceDir = pathinfo($albumName, PATHINFO_DIRNAME);
			if ('.' === $sourceDir) {
				$sourceDir = '';
			}
			// dir(source) === dest
			if ($sharepath === $sourceDir) {
				return array(false, PHOTOSTATION_ALBUM_SELECT_CONFLICT);
			}
			// dest's parent !== dest
			if (in_array($albumName, $destDirs)) {
				return array(false, PHOTOSTATION_ALBUM_SELECT_CONFLICT);
			}
			$ids[] = $albumName;
		}

		$param['destShareName'] = $sharepath;
		$param['isOverwrite'] = 'overwrite' === $_REQUEST['duplicate'] ? true : false;
		$param['id'] = $ids;
		return array(true, $param);
	}

	private function Move() {
		$ret = false;
		$param_res = $this->GetParams_Move();
		if (!$param_res[0]) {
			$this->SetError($param_res[1]);
			goto End;
		}
		$param = $param_res[1];

		if ('' !== $param['destShareName']) {
			$destPath = SYNOPHOTO_SERVICE_REAL_DIR . "/" . $param['destShareName'];
		} else {
			$destPath = SYNOPHOTO_SERVICE_REAL_DIR . "/";
		}

		if (!csSynoPhotoMisc::CheckPathValid($destPath)) {
			$this->SetError(PHOTOSTATION_PHOTO_BAD_PARAMS);
			goto End;
		}

		if (!csSynoPhotoMisc::CheckAlbumUploadable('' == $param['destShareName'] ? '/' : $param['destShareName'])) {
			$this->SetError(PHOTOSTATION_ALBUM_NO_MANAGE_RIGHT);
			goto End;
		}

		$destShareData = array();
		$destShareData['shareid'] = -1;

		if ($_REQUEST['sharepath'] == '') {
			$destShareData['sharename'] = '';
			$albums = Album::GetBySharename(array('/'), true);
			$row = $albums['/'];
		} else {
			$destShareData['sharename'] = $param['destShareName'];
			$albums = Album::GetBySharename(array($destShareData['sharename']), true);
			$row = $albums[$destShareData['sharename']];
		}

		if($row) {
			$destShareData['shareid'] = $row['shareid'];
			$destShareData['public'] = $row['public'];
			$destShareData['password'] = $row['password'];
			$destShareData['comment'] = $row['comment'];
		}

		$cancelPath = PHOTO_ACTION_TMP.md5(PHOTO_ACTION_ALBUM_MOVE_KEY.$_REQUEST['id']);
		$skip = array();
		foreach ($param['id'] as $albumName) {
			self::OutputSingleSpace();
			if (file_exists($cancelPath)) {
				@unlink($cancelPath);
				break;
			}

			$path = SYNOPHOTO_SERVICE_REAL_DIR . "/" . $albumName;
			if (!csSynoPhotoMisc::CheckPathValid($path)) {
				continue;
			}
			$ret = SYNOPHOTO_ADMIN_MoveOneAlbum($destShareData, $albumName, $param['isOverwrite']);
			// skip this album
			if (1 === $ret) {
				$skip[] = $this->EncodeItemId($albumName, "album_");
			}
		}
		$ret = true;

		$resp = array(
			'skip' => $skip
		);

        $this->SetResponse($resp);

		End:
			return $ret;
	}

	private function ArrangeItem()
	{
		if (false === ($params = $this->GetParams_ArrangeItem())) {
			$this->SetError(WEBAPI_ERR_BAD_REQUEST);
			goto End;
		}

		// chack permission
		if (!csSynoPhotoMisc::CheckAlbumManageable($params['albumName'])) {
			$this->SetError(PHOTOSTATION_ALBUM_NO_MANAGE_RIGHT);
			goto End;
		}

		// get sort_by and sort_direction
		$sort_by = $_SESSION[SYNOPHOTO_ADMIN_USER]['album_thumb_sort_by'];
		if (empty($sort_by)) {
			$value = csSYNOPhotoMisc::GetConfigDB("album", "thumb_sort_type", "photo_config");
			$sort_by = AlbumAPIUtil::ConvertToSortName($value);
		}
		$sort_direction = $_SESSION[SYNOPHOTO_ADMIN_USER]['album_thumb_sort_order'];
		if (empty($sort_direction)) {
			$value = csSYNOPhotoMisc::GetConfigDB("album", "thumb_sort_order", "photo_config");
			$sort_direction = AlbumAPIUtil::ConvertToSortDirection($value);
		}

		// get original path list
		$pathList = csSYNOPhotoBrowse::GetBrowseInstance()->GetList_new($params['albumName'], 0, -1, $sort_by, $sort_direction, false, false, false);
		$totalCount = $pathList['totalCount'];

		// adjust offset and limit
		$offset = $params['offset'];
		$limit = (-1 === (int)$params['limit']) ? (int)$totalCount : (int)$params['limit'];
		if ($offset >= $totalCount || $limit != count($params['item_name'])) {
			$this->SetError(WEBAPI_ERR_BAD_REQUEST);
			goto End;
		}

		// get original name list
		$nameList = array();
		foreach ($pathList['list'] as $path => $itemType) {
			$name = (SYNOPHOTO_ITEM_TYPE_ALBUM === $itemType) ? basename($path).SYNOPHOTO_USER_SORT_ALBUM_SYMBOL : basename($path);
			$nameList[] = $name;
		}

		// get sort name list
		array_splice($nameList, $offset, $limit, $params['item_name']);
		$sortNameList = $nameList;

		// make sure album must be ahead of photo and video
		$blHavePhotoVideoItem = false;
		$blPhotoVideoAheadAlbum = false;
		foreach ($sortNameList as $name) {
			if ('/' === $name[strlen($name)-1]) {
				if ($blHavePhotoVideoItem) {
					$blPhotoVideoAheadAlbum = true;
					break;
				}
			} else {
				$blHavePhotoVideoItem = true;
			}
		}
		if ($blPhotoVideoAheadAlbum) {
			$this->SetError(WEBAPI_ERR_BAD_REQUEST);
			goto End;
		}

		// seve to conf
		$data['type'] = AlbumAPIUtil::ConvertToSortCode('preference');
		$data['list'] = $sortNameList;
		csSYNOPhotoAlbum::GetAlbumInstance()->SaveAlbumThumbSortType($params['albumName'], $data);

	End:
		return;
	}

	private function ClearArrangeItem()
	{
		if (false === ($params = $this->GetParams_ClearArrangeItem())) {
			$this->SetError(WEBAPI_ERR_BAD_REQUEST);
			goto End;
		}

		$albumName = $params['albumName'];

		// chack permission
		if (!csSynoPhotoMisc::CheckAlbumManageable($albumName)) {
			$this->SetError(PHOTOSTATION_ALBUM_NO_MANAGE_RIGHT);
			goto End;
		}

		//remove sort file directly in PS6
		if ('/' === $albumName) {
			$fullDirPath = SYNOPHOTO_SERVICE_REAL_DIR;
			$sortFile = $fullDirPath . '/' . SYNOPhotoEA::SYNO_EA_DIR . '/' . SYNOPhotoEA::getFilename(SYNOPhotoEA::FILE_ALBUM_SORT);
		} else {
			$fullDirPath = sprintf("%s/%s", SYNOPHOTO_SERVICE_REAL_DIR, $albumName);
			if (false === SYNOPhotoEA::checkFilePath($fullDirPath, SYNOPhotoEA::FILE_ALBUM_SORT, $sortFile)) {
				goto End;
			}
		}

		@unlink($sortFile);

	End:
		return;
	}

	private function Cancel()
	{
		$ret = false;
		$resp = array();
		/* return when lack of params */
		if (!isset($_REQUEST['id']) || !isset($_REQUEST['action'])) {
			$this->SetError(PHOTOSTATION_PHOTO_BAD_PARAMS);
			goto End;
		}

		if ('mvcp' === $_REQUEST['action']) {
			$key = PHOTO_ACTION_ALBUM_MOVE_KEY;
		} else if ('delete' === $_REQUEST['action']) {
			$key = PHOTO_ACTION_ALBUM_DEL_KEY;
		}
		$filePath = PHOTO_ACTION_TMP.md5($key.$_REQUEST['id']);
		@file_put_contents($filePath, "");
		$ret = true;
	End:
		return $ret;
	}
}

$api = new AlbumAPI();
$api->Run();


?>