<?php
/*+**********************************************************************************
 * The contents of this file are subject to the vtiger CRM Public License Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * The Original Code is: vtiger CRM Open source
 * The Initial Developer of the Original Code is vtiger.
 * Portions created by vtiger are Copyright (C) vtiger.
 * All Rights Reserved.
 ************************************************************************************/

include_once 'include/Webservices/Query.php';
include_once 'include/Webservices/Create.php';
include_once 'include/Webservices/Update.php';
include_once 'modules/MailManager/MailManager.php';

class MailManager_Draft_Model {

	static $totalDraftCount;

	public static function getInstance() {
		return new self();
	}

	public function folderInstance() {
		return new MailManager_DraftFolder_Model('Drafts');
	}

	public function searchDraftMails($q, $type, $page, $limit, $folder) {
		if($type == "all") {
			$where = $this->constructAllClause($q);
		} else {
			$where = $type ." LIKE '%". $q ."%'" ;
		}
		$where = " AND ".$where;
		$draftMails = $this->getDrafts($page, $limit, $folder, $where);
		return $draftMails;
	}

	public function constructAllClause($query) {
		$fields = array('bccmail','ccmail','subject','saved_toid','description');
		for($i=0; $i<php7_count($fields); $i++) {
			if($i == php7_count($fields)-1) {
				$clause .=  $fields[$i]." LIKE '%".$query."%'";
			} else {
				$clause .=  $fields[$i]." LIKE '%".$query."%' OR ";
			}
		}
		return $clause;
	}

	public function getDrafts($page, $limit, $folder, $where = null) {
		$currentUserModel = Users_Record_Model::getCurrentUserModel();
		$handler = vtws_getModuleHandlerFromName('Emails', $currentUserModel);
		$meta = $handler->getMeta();
		if(!$meta->hasReadAccess()) {
			return false;
		}

		if(!empty($page)) {
			$limitClause = "LIMIT ".($limit*$page).", ".$limit;
		} else {
			$limitClause = "LIMIT 0, ".$limit;
		}
		$query = "SELECT * FROM Emails where email_flag='SAVED' $where ORDER BY modifiedtime DESC $limitClause;";
		$draftMails = vtws_query($query, $currentUserModel);
		for($i=0; $i<php7_count($draftMails); $i++) {
			foreach($draftMails[$i] as $fieldname=>$fieldvalue) {
				if($fieldname == "saved_toid" || $fieldname == "ccmail" || $fieldname == "bccmail") {
					if(!empty($fieldvalue)) {
						$value = implode(',',Zend_Json::decode($fieldvalue));
						if(strlen($value) > 45) {
							$value = substr($value, 0, 45)."....";
						}
						$draftMails[$i][$fieldname] = $value;
					}
				} elseif($fieldname == "date_start") {
                    if(!empty($fieldvalue)) {
						$value = Vtiger_Date_UIType::getDisplayDateValue($fieldvalue);
						$draftMails[$i][$fieldname] = $value;
					}
                } elseif($fieldname == "id") {
					$emailId = vtws_getIdComponents($fieldvalue);
					$draftMails[$i][$fieldname] = $emailId[1];
				}
			}
		}
		if($where) {
			$folder->setPaging($limit*$page+1, $limit*$page+$limit, $limit, php7_count($draftMails), $page);
		} else {
			$total = $this->getTotalDraftCount();
			$folder->setPaging($limit*$page+1, $limit*$page+$limit, $limit, $total, $page);
		}
		$folder->setMails($draftMails);

		return $draftMails ;
	}

	public function getTotalDraftCount() {
		$db = PearDatabase::getInstance();
		$currentUserModel = Users_Record_Model::getCurrentUserModel();
		if(empty(self::$totalDraftCount)) {
			$DraftRes = $query = "SELECT * FROM Emails where email_flag='SAVED';";
			$draftMails = vtws_query($query, $currentUserModel);
			self::$totalDraftCount = php7_count($draftMails);
			return self::$totalDraftCount;
		} else {
			return self::$totalDraftCount;
		}
	}

	public function getDraftMail($request) {
		$db = PearDatabase::getInstance();
		$currentUserModel = Users_Record_Model::getCurrentUserModel();

		$handler = vtws_getModuleHandlerFromName('Emails', $currentUserModel);
		$meta = $handler->getMeta();
		if(!$meta->hasReadAccess()) {
			return false;
		}
		$id = vtws_getWebserviceEntityId('Emails', $request->get('id'));
		$draftMail = vtws_query("SELECT * FROM Emails where id = $id;", $currentUserModel);
		$emailId = vtws_getIdComponents($id);
		$draftMail['attachments'] = $this->getAttachmentDetails($emailId[1]);
		$draftMail[0]['id'] = $request->get('id');
		return $draftMail;
	}

	public function getAttachmentDetails($crmid) {
		$db = PearDatabase::getInstance();

		if(empty($crmid)) return false;

		$documentRes = $db->pquery("SELECT * FROM vtiger_senotesrel
									INNER JOIN vtiger_crmentity ON vtiger_senotesrel.notesid = vtiger_crmentity.crmid AND vtiger_senotesrel.crmid = ?
									INNER JOIN vtiger_notes ON vtiger_notes.notesid = vtiger_senotesrel.notesid
									INNER JOIN vtiger_seattachmentsrel ON vtiger_seattachmentsrel.crmid = vtiger_notes.notesid
									INNER JOIN vtiger_attachments ON vtiger_attachments.attachmentsid = vtiger_seattachmentsrel.attachmentsid
									WHERE vtiger_crmentity.deleted = 0", array($crmid));
		if($db->num_rows($documentRes)) {
			for($i=0; $i<$db->num_rows($documentRes); $i++) {
				$draftMail[$i]['name'] = $db->query_result($documentRes, $i, 'filename');
				$filesize = $db->query_result($documentRes, $i, 'filesize');
				$draftMail[$i]['size'] = $this->getFormattedFileSize($filesize);
				$draftMail[$i]['docid'] = $db->query_result($documentRes, $i, 'notesid');
				$draftMail[$i]['path'] = $db->query_result($documentRes, $i, 'path');
				$draftMail[$i]['fileid'] = $db->query_result($documentRes, $i, 'attachmentsid');
				$draftMail[$i]['attachment'] = $db->query_result($documentRes, $i, 'name');
			}
		}
		return $draftMail;
	}

	public function saveDraft($request) {
		$db = PearDatabase::getInstance();
		$currentUserModel = Users_Record_Model::getCurrentUserModel();

		if(!MailManager::checkModuleWriteAccessForCurrentUser('Emails')) {
			return false;
		}

		$email = CRMEntity::getInstance('Emails');

		$to_string = rtrim($request->get('to'), ',');
		$cc_string = rtrim($request->get('cc'), ',');
		$bcc_string= rtrim($request->get('bcc'), ',');

		$parentIds = $this->getParentFromEmails($to_string);

		$emailId = $request->get('emailid');
		$subject = $request->get('subject');

		$email = CRMEntity::getInstance('Emails');
		$email->column_fields['assigned_user_id'] = $currentUserModel->getId();
		$email->column_fields['date_start'] = date('Y-m-d');
		$email->column_fields['time_start'] = date('H:i');
		$email->column_fields['parent_id'] = $parentIds;
		$email->column_fields['subject'] =  (!empty($subject)) ? $subject : "No Subject";
		$email->column_fields['description'] = $request->get('body');
		$email->column_fields['activitytype'] = 'Emails';
		$email->column_fields['from_email'] = $fromEmail;
		$email->column_fields['saved_toid'] = $to_string;
		$email->column_fields['ccmail'] = $cc_string;
		$email->column_fields['bccmail'] = $bcc_string;
		$email->column_fields['email_flag'] = 'SAVED';

		if(empty($emailId)) {
			$email->save('Emails');
		} else {
			$email->id = $emailId;
			$email->mode = 'edit';
			$email->save('Emails');
		}
		//save parent and email relation, to show up in Emails section of the parent
		$this->saveEmailParentRel($email->id, $parentIds);

		return $email->id;
	}

	public function saveEmailParentRel($emailId, $parentIds) {
		$db = PearDatabase::getInstance();

		$myids = explode("|", $parentIds);  //2@71|
		if(!empty($emailId)) {
			$db->pquery("delete from vtiger_seactivityrel where activityid=?",array($emailId)); //remove all previous relation
		}
		for ($i=0; $i<(php7_count($myids)); $i++) {
			$realid = explode("@",$myids[$i]);
			if(!empty($realid[0]) && !empty($emailId)) {
				// this is needed as we might save the mail in draft mode earlier
				$result = $db->pquery("SELECT * FROM vtiger_seactivityrel WHERE crmid=? AND activityid=?",array($realid[0], $emailId));
				if(!$db->num_rows($result)) {
					$db->pquery('INSERT INTO vtiger_seactivityrel(crmid, activityid) VALUES(?,?)',array($realid[0], $emailId));
				}
			}
		}
	}


	public function getFromEmailAddress() {
		$db = PearDatabase::getInstance();
		$currentUserModel = Users_Record_Model::getCurrentUserModel();

		$fromEmail = false;
		if (Vtiger_Version::check('5.2.0', '>=')) {
			$smtpFromResult = $db->pquery('SELECT from_email_field FROM vtiger_systems WHERE server_type=?', array('email'));
			if ($db->num_rows($smtpFromResult)) {
				$fromEmail = decode_html($db->query_result($smtpFromResult, 0, 'from_email_field'));
			}
		}
		if (empty($fromEmail)) $fromEmail = $currentUserModel->get('email1');
		return $fromEmail;
	}

	public function saveAttachment($request) {
		$db = PearDatabase::getInstance();
		$currentUserModel = Users_Record_Model::getCurrentUserModel();

		//need to handle earlier as Emails save will save the uploaded files from $_FILES
		$uploadResponse = $this->handleUpload();

		$emailId = $this->saveDraft($request);

		if($emailId != false) {

			if($uploadResponse && $uploadResponse['success'] == true) {
				// Link document to base record
				if(!empty($uploadResponse['docid'])) $this->saveEmailDocumentRel($emailId, $uploadResponse['docid']);
				if(!empty($uploadResponse['attachid'])) $this->saveAttachmentRel($emailId, $uploadResponse['attachid']);
			}
			$uploadResponse['emailid'] = $emailId;
		} else {
			$uploadResponse['error'] = true;
		}
		return $uploadResponse;
	}

	public function getParentFromEmails($to_string) {
		$currentUserModel = Users_Record_Model::getCurrentUserModel();

		if (!empty($to_string)) {
			$toArray = explode(',', $to_string);
			foreach($toArray as $to) {
				$relatedtos = MailManager::lookupMailInVtiger(trim($to), $currentUserModel);
				if (!empty($relatedtos) && is_array($relatedtos)) {
					for($i=0; $i<php7_count($relatedtos); $i++) {
						$relateto = vtws_getIdComponents($relatedtos[$i]['record']);
						$parentIds .= $relateto[1]."@1|";
					}
				}
			}
		}
		return $parentIds;
	}

	public function handleUpload() {
		$allowedFileExtension = array();

		$uploadLimit = MailManager_Config_Model::get('MAXUPLOADLIMIT', Vtiger_Util_Helper::getMaxUploadSizeInBytes());
		$filePath = decideFilePath();

		$upload = new MailManager_Upload_Action($allowedFileExtension, $uploadLimit);

		return $upload->handleUpload($filePath, false);
	}

	public function saveEmailDocumentRel($emailId, $documentId) {
		$db = PearDatabase::getInstance();
		if(!empty($emailId) && !empty($documentId)) {
			$db->pquery("INSERT INTO vtiger_senotesrel(crmid, notesid) VALUES(?,?)",
					Array($emailId, $documentId));
		}
	}

	public function saveAttachmentRel($crmid, $attachId) {
		$db = PearDatabase::getInstance();
		if(!empty($crmid) && !empty($attachId)) {
			$db->pquery("INSERT INTO vtiger_seattachmentsrel(crmid, attachmentsid) VALUES(?,?)",
					Array($crmid, $attachId));
		}
	}

	public function deleteMail($ids) {
		$currentUserModel = Users_Record_Model::getCurrentUserModel();
		$focus = CRMEntity::getInstance('Emails');
		$idList = explode(',', $ids);
		foreach($idList as $id) {
			$focus->trash('Emails', $id);
		}
	}

	public function deleteAttachment($request) {
		$db = PearDatabase::getInstance();
		$emailid = $request->get('emailid');
		$docid = $request->get('docid');
		if(!empty($docid) && !empty($emailid)) {
			$db->pquery("DELETE FROM vtiger_senotesrel WHERE crmid = ? AND notesid = ?", array($emailid, $docid));
			return true;
		}
		return false;
	}

	public function getFormattedFileSize($filesize) {
		if($filesize < 1024)
			$filesize = sprintf("%0.2f",round($filesize, 2)).'b';
		elseif($filesize > 1024 && $filesize < 1048576)
			$filesize = sprintf("%0.2f",round($filesize/1024, 2)).'kB';
		else if($filesize > 1048576)
			$filesize = sprintf("%0.2f",round($filesize/(1024*1024), 2)).'MB';
		return $filesize;
	}
}
?>