--  ***** BEGIN LICENSE BLOCK *****
--  
--  This file is part of the Zotero Data Server.
--  
--  Copyright © 2010 Center for History and New Media
--                   George Mason University, Fairfax, Virginia, USA
--                   http://zotero.org
--  
--  This program is free software: you can redistribute it and/or modify
--  it under the terms of the GNU Affero General Public License as published by
--  the Free Software Foundation, either version 3 of the License, or
--  (at your option) any later version.
--  
--  This program is distributed in the hope that it will be useful,
--  but WITHOUT ANY WARRANTY; without even the implied warranty of
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--  GNU Affero General Public License for more details.
--  
--  You should have received a copy of the GNU Affero General Public License
--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
--  
--  ***** END LICENSE BLOCK *****

SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";

CREATE TABLE `abstractCreators` (
  `creatorID` int(10) unsigned NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `abstractItems` (
  `itemID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`itemID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `baseFieldMappings` (
  `itemTypeID` smallint(5) unsigned NOT NULL,
  `baseFieldID` smallint(5) unsigned NOT NULL,
  `fieldID` smallint(5) unsigned NOT NULL,
  PRIMARY KEY (`itemTypeID`,`baseFieldID`,`fieldID`),
  KEY `baseFieldID` (`baseFieldID`),
  KEY `fieldID` (`fieldID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `charsets` (
  `charsetID` tinyint(3) unsigned NOT NULL,
  `charset` varchar(50) NOT NULL,
  PRIMARY KEY (`charsetID`),
  KEY `charset` (`charset`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `creatorTypes` (
  `creatorTypeID` smallint(5) unsigned NOT NULL,
  `creatorTypeName` varchar(50) NOT NULL,
  `custom` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`creatorTypeID`),
  UNIQUE KEY `creatorTypeName` (`creatorTypeName`),
  KEY `custom` (`custom`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `fields` (
  `fieldID` smallint(5) unsigned NOT NULL,
  `fieldName` varchar(50) NOT NULL,
  `fieldFormatID` tinyint(3) unsigned DEFAULT NULL,
  `custom` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`fieldID`),
  UNIQUE KEY `fieldName` (`fieldName`),
  KEY `custom` (`custom`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `groups` (
  `groupID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `libraryID` int(10) unsigned NOT NULL,
  `name` varchar(255) NOT NULL,
  `slug` varchar(255) DEFAULT NULL,
  `type` enum('PublicOpen','PublicClosed','Private') NOT NULL DEFAULT 'Private',
  `libraryEditing` enum('admins','members') NOT NULL DEFAULT 'admins',
  `libraryReading` enum('members','all') NOT NULL DEFAULT 'all',
  `fileEditing` enum('none','admins','members') NOT NULL DEFAULT 'admins',
  `description` text NOT NULL,
  `url` varchar(255) NOT NULL,
  `hasImage` tinyint(1) unsigned NOT NULL DEFAULT '0',
  `dateAdded` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `dateModified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `version` tinyint(3) unsigned NOT NULL DEFAULT '1',
  PRIMARY KEY (`groupID`),
  UNIQUE KEY `libraryID` (`libraryID`),
  UNIQUE KEY `slug` (`slug`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8;



CREATE TABLE `groupUsers` (
  `groupID` int(10) unsigned NOT NULL,
  `userID` int(10) unsigned NOT NULL,
  `role` enum('owner','admin','member') NOT NULL DEFAULT 'member',
  `joined` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `lastUpdated` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`groupID`,`userID`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `itemTypeCreatorTypes` (
  `itemTypeID` smallint(5) unsigned NOT NULL,
  `creatorTypeID` smallint(5) unsigned NOT NULL,
  `primaryField` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`itemTypeID`,`creatorTypeID`),
  KEY `creatorTypeID` (`creatorTypeID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `itemTypeFields` (
  `itemTypeID` smallint(5) unsigned NOT NULL,
  `fieldID` smallint(5) unsigned NOT NULL,
  `hide` tinyint(3) unsigned NOT NULL DEFAULT '0',
  `orderIndex` tinyint(3) unsigned NOT NULL,
  PRIMARY KEY (`itemTypeID`,`fieldID`),
  KEY `fieldID` (`fieldID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `itemTypes` (
  `itemTypeID` smallint(5) unsigned NOT NULL,
  `itemTypeName` varchar(50) NOT NULL,
  `custom` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`itemTypeID`),
  UNIQUE KEY `itemTypeName` (`itemTypeName`),
  KEY `custom` (`custom`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE IF NOT EXISTS `keyAccessLog` (
  `keyID` int(10) unsigned NOT NULL,
  `ipAddress` int(10) unsigned NOT NULL DEFAULT '0',
  `timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`keyID`,`ipAddress`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;




CREATE TABLE `keyPermissions` (
  `keyID` int(10) unsigned NOT NULL,
  `libraryID` int(10) unsigned NOT NULL,
  `permission` enum('library','notes','write') NOT NULL,
  `granted` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`keyID`,`libraryID`,`permission`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `keys` (
  `keyID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `key` char(24) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `userID` int(10) unsigned NOT NULL,
  `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `dateAdded` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `lastUsed` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  PRIMARY KEY (`keyID`),
  UNIQUE KEY `key` (`key`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `libraries` (
  `libraryID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `libraryType` enum('user','group') NOT NULL,
  `lastUpdated` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `version` int(10) unsigned NOT NULL DEFAULT '0',
  `shardID` smallint(5) unsigned NOT NULL,
  PRIMARY KEY (`libraryID`),
  KEY `libraryType` (`libraryType`),
  KEY `shardID` (`shardID`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8;



CREATE TABLE `processorDaemons` (
  `mode` enum('download','upload','error','index') NOT NULL,
  `addr` int(10) unsigned NOT NULL,
  `port` smallint(5) unsigned NOT NULL,
  `lastSeen` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`mode`,`addr`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `sessions` (
  `sessionID` char(32) CHARACTER SET ascii NOT NULL,
  `userID` int(10) unsigned NOT NULL,
  `ipAddress` int(10) unsigned DEFAULT NULL,
  `exclusive` tinyint(1) unsigned NOT NULL DEFAULT '0',
  `timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`sessionID`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `shardHosts` (
  `shardHostID` tinyint(3) unsigned NOT NULL,
  `address` varchar(15) NOT NULL,
  `port` smallint(5) unsigned NOT NULL DEFAULT 3306,
  `state` enum('up','readonly','down') NOT NULL,
  PRIMARY KEY (`shardHostID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `shards` (
  `shardID` smallint(5) unsigned NOT NULL,
  `shardHostID` tinyint(3) unsigned NOT NULL,
  `db` varchar(20) NOT NULL,
  `state` enum('up','readonly','down') NOT NULL,
  `items` mediumint(8) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`shardID`),
  KEY `shardHostID` (`shardHostID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageAccounts` (
  `userID` int(10) unsigned NOT NULL,
  `quota` mediumint(8) unsigned DEFAULT 10000 NOT NULL,
  `expiration` timestamp NULL DEFAULT DATE_ADD(CURRENT_TIMESTAMP, INTERVAL 10 YEARS),
  PRIMARY KEY (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageDownloadLog` (
  `ownerUserID` int(10) unsigned NOT NULL,
  `downloadUserID` int(10) unsigned DEFAULT NULL,
  `ipAddress` int(10) unsigned NULL,
  `storageFileID` int(10) unsigned NOT NULL,
  `filename` varchar(1024) NOT NULL,
  `size` int(10) unsigned NOT NULL,
  `time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageFiles` (
  `storageFileID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `hash` char(32) NOT NULL,
  `filename` varchar(255) NOT NULL,
  `size` int(10) unsigned NOT NULL,
  `zip` tinyint(1) unsigned NOT NULL,
  `lastAdded` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`storageFileID`),
  UNIQUE KEY `hash` (`hash`,`filename`,`zip`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8;



CREATE TABLE `storageFilesExisting` (
  `storageFileID` int(10) unsigned NOT NULL,
  PRIMARY KEY (`storageFileID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageLastSync` (
  `userID` int(10) unsigned NOT NULL,
  `time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageUploadLog` (
  `ownerUserID` int(10) unsigned NOT NULL,
  `uploadUserID` int(10) unsigned NOT NULL,
  `ipAddress` int(10) unsigned NULL,
  `storageFileID` int(10) unsigned NOT NULL,
  `filename` varchar(1024) NOT NULL,
  `size` int(10) unsigned NOT NULL,
  `time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `storageUploadQueue` (
  `uploadKey` char(32) NOT NULL,
  `userID` int(10) unsigned NOT NULL,
  `hash` char(32) NOT NULL,
  `filename` varchar(1024) NOT NULL,
  `zip` tinyint(1) unsigned NOT NULL,
  `size` int(10) unsigned NOT NULL,
  `mtime` bigint(13) unsigned NOT NULL,
  `contentType` varchar(75) DEFAULT NULL,
  `charset` varchar(25) DEFAULT NULL,
  `time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`uploadKey`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncDownloadProcessLog` (
  `userID` int(10) unsigned NOT NULL,
  `lastsync` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `objects` int(10) unsigned NOT NULL,
  `ipAddress` int(10) unsigned NOT NULL,
  `processorHost` int(10) unsigned NOT NULL,
  `processDuration` float(6,2) NOT NULL,
  `totalDuration` smallint(5) unsigned NOT NULL,
  `error` tinyint(4) NOT NULL DEFAULT '0',
  `finished` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  KEY `finished` (`finished`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncDownloadQueue` (
  `syncDownloadQueueID` int(10) unsigned NOT NULL,
  `processorHost` int(10) unsigned DEFAULT NULL,
  `userID` int(10) unsigned NOT NULL,
  `sessionID` char(32) CHARACTER SET ascii NOT NULL,
  `lastsync` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `lastsyncMS` smallint(5) unsigned NOT NULL DEFAULT '0',
  `version` smallint(5) unsigned NOT NULL,
  `params` mediumtext NOT NULL,
  `added` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `objects` int(10) unsigned NOT NULL,
  `lastCheck` timestamp NULL DEFAULT NULL,
  `tries` smallint(5) unsigned NOT NULL DEFAULT '0',
  `started` timestamp NULL DEFAULT NULL,
  `syncDownloadProcessID` int(10) unsigned DEFAULT NULL,
  `finished` timestamp NULL DEFAULT NULL,
  `finishedMS` smallint(5) unsigned NOT NULL DEFAULT '0',
  `xmldata` longtext,
  `errorCode` int(10) unsigned DEFAULT NULL,
  `errorMessage` text,
  PRIMARY KEY (`syncDownloadQueueID`),
  KEY `userID` (`userID`),
  KEY `sessionID` (`sessionID`),
  KEY `started` (`started`),
  KEY `syncDownloadProcessID` (`syncDownloadProcessID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncProcesses` (
  `syncProcessID` int(10) unsigned NOT NULL,
  `userID` int(10) unsigned NOT NULL,
  `started` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`syncProcessID`),
  UNIQUE KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncProcessLocks` (
  `syncProcessID` int(10) unsigned NOT NULL,
  `libraryID` int(10) unsigned NOT NULL,
  PRIMARY KEY (`syncProcessID`,`libraryID`),
  KEY `libraryID` (`libraryID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncUploadQueue` (
  `syncUploadQueueID` int(10) unsigned NOT NULL,
  `processorHost` int(10) unsigned DEFAULT NULL,
  `xmldata` longtext NOT NULL,
  `dataLength` int(10) unsigned NOT NULL DEFAULT '0',
  `hasCreator` tinyint(3) unsigned NOT NULL DEFAULT '0',
  `userID` int(10) unsigned NOT NULL,
  `sessionID` char(32) CHARACTER SET ascii NOT NULL,
  `added` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `errorCheck` tinyint(1) unsigned NOT NULL DEFAULT '0',
  `tries` smallint(5) unsigned NOT NULL DEFAULT '0',
  `started` timestamp NULL DEFAULT NULL,
  `startedMS` smallint(5) unsigned NOT NULL DEFAULT '0',
  `syncProcessID` int(10) unsigned DEFAULT NULL,
  `finished` timestamp NULL DEFAULT NULL,
  `finishedMS` smallint(5) unsigned NOT NULL DEFAULT '0',
  `errorCode` int(10) unsigned DEFAULT NULL,
  `errorMessage` mediumtext,
  PRIMARY KEY (`syncUploadQueueID`),
  UNIQUE KEY `sessionID` (`sessionID`),
  UNIQUE KEY `syncProcessID` (`syncProcessID`),
  KEY `userID` (`userID`),
  KEY `started` (`started`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncUploadQueueLocks` (
  `syncUploadQueueID` int(10) unsigned NOT NULL,
  `libraryID` int(10) unsigned NOT NULL,
  PRIMARY KEY (`syncUploadQueueID`,`libraryID`),
  KEY `libraryID` (`libraryID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncUploadProcessLog` (
  `userID` int(10) unsigned NOT NULL,
  `dataLength` int(10) unsigned NOT NULL,
  `processorHost` int(10) unsigned NOT NULL,
  `processDuration` float(6,2) NOT NULL,
  `totalDuration` smallint(5) unsigned NOT NULL,
  `error` tinyint(4) NOT NULL DEFAULT '0',
  `finished` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  KEY `finished` (`finished`),
  KEY `userID` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `syncUploadQueuePostWriteLog` (
  `syncUploadQueueID` int(10) unsigned NOT NULL,
  `objectType` enum('group','groupUser') NOT NULL,
  `ids` varchar(30) NOT NULL,
  `action` enum('update','delete') NOT NULL,
  PRIMARY KEY (`syncUploadQueueID`,`objectType`,`ids`,`action`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



CREATE TABLE `users` (
  `userID` int(10) unsigned NOT NULL,
  `libraryID` int(10) unsigned NOT NULL,
  `username` varchar(255) NOT NULL,
  `joined` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `lastSyncTime` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  PRIMARY KEY (`userID`),
  UNIQUE KEY `libraryID` (`libraryID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;



ALTER TABLE `baseFieldMappings`
  ADD CONSTRAINT `baseFieldMappings_ibfk_1` FOREIGN KEY (`itemTypeID`) REFERENCES `itemTypes` (`itemTypeID`),
  ADD CONSTRAINT `baseFieldMappings_ibfk_2` FOREIGN KEY (`baseFieldID`) REFERENCES `fields` (`fieldID`),
  ADD CONSTRAINT `baseFieldMappings_ibfk_3` FOREIGN KEY (`fieldID`) REFERENCES `fields` (`fieldID`);

ALTER TABLE `groups`
  ADD CONSTRAINT `groups_ibfk_1` FOREIGN KEY (`libraryID`) REFERENCES `libraries` (`libraryID`) ON DELETE CASCADE;

ALTER TABLE `groupUsers`
  ADD CONSTRAINT `groupUsers_ibfk_1` FOREIGN KEY (`groupID`) REFERENCES `groups` (`groupID`) ON DELETE CASCADE,
  ADD CONSTRAINT `groupUsers_ibfk_2` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE,
  ADD CONSTRAINT `groupUsers_ibfk_3` FOREIGN KEY (`groupID`) REFERENCES `groups` (`groupID`) ON DELETE CASCADE,
  ADD CONSTRAINT `groupUsers_ibfk_4` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE;

ALTER TABLE `itemTypeCreatorTypes`
  ADD CONSTRAINT `itemTypeCreatorTypes_ibfk_1` FOREIGN KEY (`itemTypeID`) REFERENCES `itemTypes` (`itemTypeID`),
  ADD CONSTRAINT `itemTypeCreatorTypes_ibfk_2` FOREIGN KEY (`creatorTypeID`) REFERENCES `creatorTypes` (`creatorTypeID`);

ALTER TABLE `itemTypeFields`
  ADD CONSTRAINT `itemTypeFields_ibfk_1` FOREIGN KEY (`itemTypeID`) REFERENCES `itemTypes` (`itemTypeID`),
  ADD CONSTRAINT `itemTypeFields_ibfk_2` FOREIGN KEY (`fieldID`) REFERENCES `fields` (`fieldID`);

ALTER TABLE `keys`
  ADD CONSTRAINT `keys_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE;

ALTER TABLE `keyPermissions`
  ADD CONSTRAINT `keyPermissions_ibfk_1` FOREIGN KEY (`keyID`) REFERENCES `keys` (`keyID`) ON DELETE CASCADE;

ALTER TABLE `libraries`
  ADD CONSTRAINT `libraries_ibfk_1` FOREIGN KEY (`shardID`) REFERENCES `shards` (`shardID`);

ALTER TABLE `sessions`
  ADD CONSTRAINT `sessions_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE;

ALTER TABLE `shards`
  ADD CONSTRAINT `shards_ibfk_1` FOREIGN KEY (`shardHostID`) REFERENCES `shardHosts` (`shardHostID`);

ALTER TABLE `storageAccounts`
  ADD CONSTRAINT `storageAccounts_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `storageLastSync`
  ADD CONSTRAINT `storageLastSync_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `storageUploadQueue`
  ADD CONSTRAINT `storageUploadQueue_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `syncDownloadQueue`
  ADD CONSTRAINT `syncDownloadQueue_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE ON UPDATE CASCADE,
  ADD CONSTRAINT `syncDownloadQueue_ibfk_3` FOREIGN KEY (`sessionID`) REFERENCES `sessions` (`sessionID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `syncProcesses`
  ADD CONSTRAINT `syncProcesses_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`);

ALTER TABLE `syncProcessLocks`
  ADD CONSTRAINT `syncProcessLocks_ibfk_1` FOREIGN KEY (`syncProcessID`) REFERENCES `syncProcesses` (`syncProcessID`) ON DELETE CASCADE ON UPDATE CASCADE,
  ADD CONSTRAINT `syncProcessLocks_ibfk_2` FOREIGN KEY (`libraryID`) REFERENCES `libraries` (`libraryID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `syncUploadQueue`
  ADD CONSTRAINT `syncUploadQueue_ibfk_1` FOREIGN KEY (`userID`) REFERENCES `users` (`userID`) ON DELETE CASCADE ON UPDATE CASCADE,
  ADD CONSTRAINT `syncUploadQueue_ibfk_2` FOREIGN KEY (`syncProcessID`) REFERENCES `syncProcesses` (`syncProcessID`) ON DELETE SET NULL,
  ADD CONSTRAINT `syncUploadQueue_ibfk_3` FOREIGN KEY (`sessionID`) REFERENCES `sessions` (`sessionID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `syncUploadQueueLocks`
  ADD CONSTRAINT `syncUploadQueueLocks_ibfk_1` FOREIGN KEY (`syncUploadQueueID`) REFERENCES `syncUploadQueue` (`syncUploadQueueID`) ON DELETE CASCADE ON UPDATE CASCADE,
  ADD CONSTRAINT `syncUploadQueueLocks_ibfk_2` FOREIGN KEY (`libraryID`) REFERENCES `libraries` (`libraryID`) ON DELETE CASCADE ON UPDATE CASCADE;

ALTER TABLE `syncUploadQueuePostWriteLog`
  ADD CONSTRAINT `syncUploadQueuePostWriteLog_ibfk_1` FOREIGN KEY (`syncUploadQueueID`) REFERENCES `syncUploadQueue` (`syncUploadQueueID`) ON DELETE CASCADE;

ALTER TABLE `users`
  ADD CONSTRAINT `users_ibfk_1` FOREIGN KEY (`libraryID`) REFERENCES `libraries` (`libraryID`) ON DELETE CASCADE;



CREATE EVENT sessionGC ON SCHEDULE EVERY 5 MINUTE DO
    DELETE S FROM sessions S LEFT JOIN syncUploadQueue USING (sessionID) WHERE timestamp<DATE_SUB(NOW(), INTERVAL 1 HOUR) AND (syncUploadQueue.sessionID IS NULL OR finished IS NOT NULL);