reworked coodle-related email sending to avoid delays on user's end

application/controllers/api/frontend/v1/coodle/CoodleSurvey.php

@@ -48,6 +48,7 @@ class CoodleSurvey extends FHCAPI_Controller
 			'getCoodleIcalUrl' => self::PERM_LOGGED,
 			'getCoodleIcal' => self::PERM_ANONYMOUS,
 			'getCoodleIcalEncrypted' => self::PERM_ANONYMOUS,
+			'emailParticipants' => self::PERM_LOGGED,
 		]);
 
 		$this->load->library('form_validation');
@@ -193,7 +194,6 @@ class CoodleSurvey extends FHCAPI_Controller
 	public function createSurvey()
 	{
 		$surveyData = $this->input->post("surveyData");
-		$shouldInformParticipants = $this->input->post("shouldInformParticipants");
 
 		$this->form_validation->set_data([
 			"title" => $surveyData["title"],
@@ -216,42 +216,6 @@ class CoodleSurvey extends FHCAPI_Controller
 		$this->CoodleSurveyParticipantModel->updateParticipants($surveyId, $surveyData["participants"], $timeslots);
 		$this->CoodleSurveyExternalParticipantModel->updateExternalParticipants($surveyId, $surveyData["externalParticipants"], $timeslots);
 
-		if ($shouldInformParticipants) {
-			$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
-			$participants = $this->CoodleSurveyParticipantModel->getParticipants($surveyId);
-			$authUserFullName = getData($this->PersonModel->getFullName(getAuthUID()));
-
-			foreach ($participants as $participant) {
-				sendSanchoMail(
-					"Sancho_Mail_Coodle_Created",
-					[
-						"surveyParticipantName" => $participant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-					],
-					$participant->uid . "@" . DOMAIN,
-					"Coodle Umfrage erstellt / Coodle survey created"
-				);
-			}
-
-			$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($surveyId, true);
-			foreach ($externalParticipants as $externalParticipant) {
-				sendSanchoMail(
-					"Sancho_Mail_Coodle_Created_Ext",
-					[
-						"surveyParticipantName" => $externalParticipant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"org" => CAMPUS_NAME,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-					],
-					$externalParticipant->email,
-					"Coodle Umfrage erstellt / Coodle survey created"
-				);
-			}
-		}
-
 		$this->terminateWithSuccess($surveyId);
 	}
 
@@ -259,7 +223,6 @@ class CoodleSurvey extends FHCAPI_Controller
 	{
 		$surveyId = $this->input->post("surveyId");
 		$surveyData = $this->input->post("surveyData");
-		$shouldInformParticipants = $this->input->post("shouldInformParticipants");
 
 		$this->form_validation->set_data([
 			"title" => $surveyData["title"],
@@ -293,42 +256,6 @@ class CoodleSurvey extends FHCAPI_Controller
 		$this->CoodleSurveyParticipantModel->updateParticipants($surveyId, $surveyData["participants"], $timeslots);
 		$this->CoodleSurveyExternalParticipantModel->updateExternalParticipants($surveyId, $surveyData["externalParticipants"], $timeslots);
 
-		if ($shouldInformParticipants) {
-			$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
-			$participants = $this->CoodleSurveyParticipantModel->getParticipants($surveyId);
-			$authUserFullName = getData($this->PersonModel->getFullName(getAuthUID()));
-
-			foreach ($participants as $participant) {
-				sendSanchoMail(
-					'Sancho_Mail_Coodle_Updated',
-					[
-						"surveyParticipantName" => $participant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-					],
-					$participant->uid . "@" . DOMAIN,
-					'Coodle Umfrage modifiziert / Coodle survey modified'
-				);
-			}
-
-			$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($surveyId, true);
-			foreach ($externalParticipants as $externalParticipant) {
-				sendSanchoMail(
-					"Sancho_Mail_Coodle_Updated_Ext",
-					[
-						"surveyParticipantName" => $externalParticipant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"org" => CAMPUS_NAME,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-					],
-					$externalParticipant->email,
-					"Coodle Umfrage modifiziert / Coodle survey modified"
-				);
-			}
-		}
-
 		$this->terminateWithSuccess($surveyId);
 	}
 
@@ -437,7 +364,6 @@ class CoodleSurvey extends FHCAPI_Controller
 
 	public function cancelSurvey()
 	{
-		$shouldInformParticipants = $this->input->post("shouldInformParticipants");
 		$surveyId = $this->input->post("surveyId");
 		$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
 
@@ -452,47 +378,11 @@ class CoodleSurvey extends FHCAPI_Controller
 		}
 
 		$this->CoodleSurveyModel->cancelSurvey($surveyId);
-
-		if ($shouldInformParticipants) {
-			$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
-			$participants = $this->CoodleSurveyParticipantModel->getParticipants($surveyId);
-			$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($surveyId, true);
-			$authUserFullName = getData($this->PersonModel->getFullName(getAuthUID()));
-
-			foreach ($participants as $participant) {
-				sendSanchoMail(
-					'Sancho_Mail_Coodle_Canceled',
-					[
-						"surveyParticipantName" => $participant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-					],
-					$participant->uid . "@" . DOMAIN,
-					'Coodle Umfrage storniert / Coodle survey canceled'
-				);
-			}
-
-			foreach ($externalParticipants as $externalParticipant) {
-				sendSanchoMail(
-					"Sancho_Mail_Coodle_Canceled_Ext",
-					[
-						"surveyParticipantName" => $externalParticipant->name,
-						"surveyCreatorName" => $authUserFullName,
-						"org" => CAMPUS_NAME,
-						"surveyTitle" => $survey->title,
-						"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-					],
-					$externalParticipant->email,
-					'Coodle Umfrage storniert / Coodle survey canceled'
-				);
-			}
-		}
+		$this->terminateWithSuccess();
 	}
 
 	public function completeSurvey()
 	{
-		$shouldInformParticipants = $this->input->post("shouldInformParticipants");
 		$surveyId = $this->input->post("surveyId");
 		$selectedTimeslotId = $this->input->post("selectedTimeslotId");
 		$selectedRoomId = $this->input->post("selectedRoomId");
@@ -536,120 +426,6 @@ class CoodleSurvey extends FHCAPI_Controller
 
 		$this->CoodleSurveyModel->completeSurvey($surveyId, $selectedTimeslotId);
 
-		if ($shouldInformParticipants) {
-			$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
-			$participants = $this->CoodleSurveyParticipantModel->getParticipants($surveyId);
-			$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($surveyId, true);
-			$authUserFullName = getData($this->PersonModel->getFullName(getAuthUID()));
-
-			if ($selectedTimeslot) {
-				$localTimezone = new DateTimeZone('Europe/Vienna');
-				$timeslotStart = new DateTime($selectedTimeslot->starts_at, $localTimezone);
-				$timeslotEnd = new DateTime($selectedTimeslot->starts_at, $localTimezone);
-				$timeslotEnd = $timeslotEnd->modify("+$survey->timeslot_duration minutes");
-				$formattedTimeslot = $timeslotStart->format("d.m.Y H:i") . "-" . $timeslotEnd->format("H:i");
-
-				$utcTimezone = new DateTimeZone("UTC");
-				$timeslotStart->setTimezone($utcTimezone);
-				$timeslotEnd->setTimezone($utcTimezone);
-
-				$calendarFilePath = tempnam(sys_get_temp_dir(), "coodle_");
-				$this->writeToCoodleIcsFile(
-					$calendarFilePath,
-					$survey->id,
-					$survey->title,
-					$timeslotStart,
-					$timeslotEnd,
-					$selectedRoomId,
-					$authUserFullName,
-					getAuthUID() . "@" . DOMAIN
-				);
-
-				foreach ($participants as $participant) {
-					sendSanchoMail(
-						'Sancho_Mail_Coodle_Completed',
-						[
-							"surveyParticipantName" => $participant->name,
-							"surveyCreatorName" => $authUserFullName,
-							"surveyTitle" => $survey->title,
-							"selectedSurveyTimeslot" => $formattedTimeslot,
-							"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-						],
-						$participant->uid . "@" . DOMAIN,
-						"Coodle Umfrage vollendet / Coodle survey completed",
-						"",
-						"",
-						null,
-						null,
-						null,
-						[
-							[
-								"filePath" => $calendarFilePath,
-								"altName" => "coodle.ics",
-							]
-						]
-					);
-				}
-
-				foreach ($externalParticipants as $externalParticipant) {
-					sendSanchoMail(
-						"Sancho_Mail_Coodle_Completed_Ext",
-						[
-							"surveyCreatorName" => $authUserFullName,
-							"surveyParticipantName" => $externalParticipant->name,
-							"org" => CAMPUS_NAME,
-							"surveyTitle" => $survey->title,
-							"selectedSurveyTimeslot" => $formattedTimeslot,
-							"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-						],
-						$externalParticipant->email,
-						"Coodle Umfrage vollendet / Coodle survey completed",
-						"",
-						"",
-						null,
-						null,
-						null,
-						[
-							[
-								"filePath" => $calendarFilePath,
-								"altName" => "coodle.ics",
-							]
-						]
-					);
-				}
-
-				unlink($calendarFilePath);
-			} else {
-				foreach ($participants as $participant) {
-					sendSanchoMail(
-						'Sancho_Mail_Coodle_Completed_No',
-						[
-							"surveyParticipantName" => $participant->name,
-							"surveyCreatorName" => $authUserFullName,
-							"surveyTitle" => $survey->title,
-							"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-						],
-						$participant->uid . "@" . DOMAIN,
-						'Coodle Umfrage vollendet / Coodle survey completed'
-					);
-				}
-
-				foreach ($externalParticipants as $externalParticipant) {
-					sendSanchoMail(
-						"Sancho_Mail_Coodle_Cmpltd_No_Ext",
-						[
-							"surveyCreatorName" => $authUserFullName,
-							"surveyParticipantName" => $externalParticipant->name,
-							"org" => CAMPUS_NAME,
-							"surveyTitle" => $survey->title,
-							"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-						],
-						$externalParticipant->email,
-						"Coodle Umfrage vollendet / Coodle survey completed"
-					);
-				}
-			}
-		}
 		$this->terminateWithSuccess();
 	}
 
@@ -665,56 +441,7 @@ class CoodleSurvey extends FHCAPI_Controller
 			$this->terminateWithError("This survey is no longer active!");
 		}
 
-		$participants = $this->CoodleSurveyParticipantModel->getParticipants($surveyId);
-		$participantsWithoutVote = array_filter(
-			$participants,
-			function ($participant) {
-				return $participant->selection === null;
-			}
-		);
-
-		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($surveyId, true);
-		$externalParticipantsWithoutVote = array_filter(
-			$externalParticipants,
-			function ($externalParticipant) {
-				return $externalParticipant->selection === null;
-			}
-		);
-
-		if (!count($participantsWithoutVote) && !count($externalParticipantsWithoutVote)) {
-			$this->terminateWithError("All participants have already voted!");
-		}
-
-		$authUserFullName = getData($this->PersonModel->getFullName(getAuthUID()));
-
-		foreach ($participantsWithoutVote as $participant) {
-			sendSanchoMail(
-				'Sancho_Mail_Coodle_Reminder',
-				[
-					"surveyParticipantName" => $participant->name,
-					"surveyCreatorName" => $authUserFullName,
-					"surveyTitle" => $survey->title,
-					"surveyHref" => $this->coodlePageUrl . "?id=" . $surveyId,
-				],
-				$participant->uid . "@" . DOMAIN,
-				'Coodle Umfrage Erinnerung / Coodle survey reminder'
-			);
-		}
-
-		foreach ($externalParticipantsWithoutVote as $externalParticipant) {
-			sendSanchoMail(
-				"Sancho_Mail_Coodle_Reminder_Ext",
-				[
-					"surveyCreatorName" => $authUserFullName,
-					"surveyParticipantName" => $externalParticipant->name,
-					"org" => CAMPUS_NAME,
-					"surveyTitle" => $survey->title,
-					"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
-				],
-				$externalParticipant->email,
-				"Coodle Umfrage Erinnerung / Coodle survey reminder"
-			);
-		}
+		$this->sendSurveyReminderEmail($survey);
 
 		$this->terminateWithSuccess();
 	}
@@ -751,6 +478,42 @@ class CoodleSurvey extends FHCAPI_Controller
 		$this->terminateWithFileOutput("text/calendar", file_get_contents($coodleIcalFilePath), "coodle_ical.ics");
 	}
 
+	public function emailParticipants()
+	{
+		$emailType = $this->input->post("emailType");
+		$surveyId = $this->input->post("surveyId");
+		$additionalData = $this->input->post("additionalData");
+
+		if (!$surveyId) {
+			$this->terminateWithError("Missing survey id!");
+		}
+
+		$survey = $this->CoodleSurveyModel->getSurvey($surveyId);
+
+		if (!$survey)
+			$this->terminateWithError("Survey not found!");
+		if ($survey->creator_uid !== getAuthUID())
+			$this->terminateWithError("You do not own this survey!");
+
+		switch ($emailType) {
+			case "created":
+				$this->sendSurveyCreationEmail($survey);
+				break;
+			case "updated":
+				$this->sendSurveyUpdateEmail($survey);
+				break;
+			case "canceled":
+				$this->sendSurveyCancellationEmail($survey);
+				break;
+			case "completed":
+				$selectedRoomId = isset($additionalData["selectedRoomId"]) ? $additionalData["selectedRoomId"] : null;
+				$this->sendSurveyCompletionEmail($survey, $selectedRoomId);
+				break;
+		}
+
+		$this->terminateWithSuccess();
+	}
+
 	// -----------------------------------------------------------------------------------------------------------------
 	// Private methods
 
@@ -1037,4 +800,287 @@ class CoodleSurvey extends FHCAPI_Controller
 			"externalParticipant" => $externalParticipant,
 		];
 	}
+
+	private function sendSurveyCreationEmail($survey)
+	{
+		$participants = $this->CoodleSurveyParticipantModel->getParticipants($survey->id);
+		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($survey->id, true);
+		$creatorFullName = getData($this->PersonModel->getFullName($survey->creator_uid));
+
+		foreach ($participants as $participant) {
+			sendSanchoMail(
+				"Sancho_Mail_Coodle_Created",
+				[
+					"surveyParticipantName" => $participant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+				],
+				$participant->uid . "@" . DOMAIN,
+				"Coodle Umfrage erstellt / Coodle survey created"
+			);
+		}
+
+		foreach ($externalParticipants as $externalParticipant) {
+			sendSanchoMail(
+				"Sancho_Mail_Coodle_Created_Ext",
+				[
+					"surveyParticipantName" => $externalParticipant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"org" => CAMPUS_NAME,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+				],
+				$externalParticipant->email,
+				"Coodle Umfrage erstellt / Coodle survey created"
+			);
+		}
+	}
+
+	private function sendSurveyUpdateEmail($survey)
+	{
+		$participants = $this->CoodleSurveyParticipantModel->getParticipants($survey->id);
+		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($survey->id, true);
+		$creatorFullName = getData($this->PersonModel->getFullName($survey->creator_uid));
+
+		foreach ($participants as $participant) {
+			sendSanchoMail(
+				'Sancho_Mail_Coodle_Updated',
+				[
+					"surveyParticipantName" => $participant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+				],
+				$participant->uid . "@" . DOMAIN,
+				'Coodle Umfrage modifiziert / Coodle survey modified'
+			);
+		}
+
+		foreach ($externalParticipants as $externalParticipant) {
+			sendSanchoMail(
+				"Sancho_Mail_Coodle_Updated_Ext",
+				[
+					"surveyParticipantName" => $externalParticipant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"org" => CAMPUS_NAME,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+				],
+				$externalParticipant->email,
+				"Coodle Umfrage modifiziert / Coodle survey modified"
+			);
+		}
+	}
+
+	private function sendSurveyReminderEmail($survey)
+	{
+		$participants = $this->CoodleSurveyParticipantModel->getParticipants($survey->id);
+		$participantsWithoutVote = array_filter(
+			$participants,
+			function ($participant) {
+				return $participant->selection === null;
+			}
+		);
+
+		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($survey->id, true);
+		$externalParticipantsWithoutVote = array_filter(
+			$externalParticipants,
+			function ($externalParticipant) {
+				return $externalParticipant->selection === null;
+			}
+		);
+
+		if (!count($participantsWithoutVote) && !count($externalParticipantsWithoutVote)) {
+			$this->terminateWithError("All participants have already voted!");
+		}
+
+		$creatorFullName = getData($this->PersonModel->getFullName($survey->creator_uid));
+
+		foreach ($participantsWithoutVote as $participant) {
+			sendSanchoMail(
+				'Sancho_Mail_Coodle_Reminder',
+				[
+					"surveyParticipantName" => $participant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+				],
+				$participant->uid . "@" . DOMAIN,
+				'Coodle Umfrage Erinnerung / Coodle survey reminder'
+			);
+		}
+
+		foreach ($externalParticipantsWithoutVote as $externalParticipant) {
+			sendSanchoMail(
+				"Sancho_Mail_Coodle_Reminder_Ext",
+				[
+					"surveyCreatorName" => $creatorFullName,
+					"surveyParticipantName" => $externalParticipant->name,
+					"org" => CAMPUS_NAME,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+				],
+				$externalParticipant->email,
+				"Coodle Umfrage Erinnerung / Coodle survey reminder"
+			);
+		}
+
+	}
+
+	private function sendSurveyCancellationEmail($survey)
+	{
+		$participants = $this->CoodleSurveyParticipantModel->getParticipants($survey->id);
+		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($survey->id, true);
+		$creatorFullName = getData($this->PersonModel->getFullName($survey->creator_uid));
+
+		foreach ($participants as $participant) {
+			sendSanchoMail(
+				'Sancho_Mail_Coodle_Canceled',
+				[
+					"surveyParticipantName" => $participant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+				],
+				$participant->uid . "@" . DOMAIN,
+				'Coodle Umfrage storniert / Coodle survey canceled'
+			);
+		}
+
+		foreach ($externalParticipants as $externalParticipant) {
+			sendSanchoMail(
+				"Sancho_Mail_Coodle_Canceled_Ext",
+				[
+					"surveyParticipantName" => $externalParticipant->name,
+					"surveyCreatorName" => $creatorFullName,
+					"org" => CAMPUS_NAME,
+					"surveyTitle" => $survey->title,
+					"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+				],
+				$externalParticipant->email,
+				'Coodle Umfrage storniert / Coodle survey canceled'
+			);
+		}
+	}
+
+	private function sendSurveyCompletionEmail($survey, $selectedRoomId)
+	{
+		$participants = $this->CoodleSurveyParticipantModel->getParticipants($survey->id);
+		$externalParticipants = $this->CoodleSurveyExternalParticipantModel->getExternalParticipants($survey->id, true);
+		$creatorFullName = getData($this->PersonModel->getFullName($survey->creator_uid));
+
+		$selectedTimeslot = null;
+		if ($survey->selected_timeslot_id) {
+			$selectedTimeslot = $this->CoodleSurveyTimeslotModel->getTimeslot($survey->selected_timeslot_id);
+		}
+
+		if ($selectedTimeslot) {
+			$localTimezone = new DateTimeZone('Europe/Vienna');
+			$timeslotStart = new DateTime($selectedTimeslot->starts_at, $localTimezone);
+			$timeslotEnd = new DateTime($selectedTimeslot->starts_at, $localTimezone);
+			$timeslotEnd = $timeslotEnd->modify("+$survey->timeslot_duration minutes");
+			$formattedTimeslot = $timeslotStart->format("d.m.Y H:i") . "-" . $timeslotEnd->format("H:i");
+
+			$utcTimezone = new DateTimeZone("UTC");
+			$timeslotStart->setTimezone($utcTimezone);
+			$timeslotEnd->setTimezone($utcTimezone);
+
+			$calendarFilePath = tempnam(sys_get_temp_dir(), "coodle_");
+			$this->writeToCoodleIcsFile(
+				$calendarFilePath,
+				$survey->id,
+				$survey->title,
+				$timeslotStart,
+				$timeslotEnd,
+				$selectedRoomId,
+				$creatorFullName,
+				getAuthUID() . "@" . DOMAIN
+			);
+
+			foreach ($participants as $participant) {
+				sendSanchoMail(
+					'Sancho_Mail_Coodle_Completed',
+					[
+						"surveyParticipantName" => $participant->name,
+						"surveyCreatorName" => $creatorFullName,
+						"surveyTitle" => $survey->title,
+						"selectedSurveyTimeslot" => $formattedTimeslot,
+						"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+					],
+					$participant->uid . "@" . DOMAIN,
+					"Coodle Umfrage vollendet / Coodle survey completed",
+					"",
+					"",
+					null,
+					null,
+					null,
+					[
+						[
+							"filePath" => $calendarFilePath,
+							"altName" => "coodle.ics",
+						]
+					]
+				);
+			}
+
+			foreach ($externalParticipants as $externalParticipant) {
+				sendSanchoMail(
+					"Sancho_Mail_Coodle_Completed_Ext",
+					[
+						"surveyCreatorName" => $creatorFullName,
+						"surveyParticipantName" => $externalParticipant->name,
+						"org" => CAMPUS_NAME,
+						"surveyTitle" => $survey->title,
+						"selectedSurveyTimeslot" => $formattedTimeslot,
+						"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+					],
+					$externalParticipant->email,
+					"Coodle Umfrage vollendet / Coodle survey completed",
+					"",
+					"",
+					null,
+					null,
+					null,
+					[
+						[
+							"filePath" => $calendarFilePath,
+							"altName" => "coodle.ics",
+						]
+					]
+				);
+			}
+
+			unlink($calendarFilePath);
+		} else {
+			foreach ($participants as $participant) {
+				sendSanchoMail(
+					'Sancho_Mail_Coodle_Completed_No',
+					[
+						"surveyParticipantName" => $participant->name,
+						"surveyCreatorName" => $creatorFullName,
+						"surveyTitle" => $survey->title,
+						"surveyHref" => $this->coodlePageUrl . "?id=" . $survey->id,
+					],
+					$participant->uid . "@" . DOMAIN,
+					'Coodle Umfrage vollendet / Coodle survey completed'
+				);
+			}
+
+			foreach ($externalParticipants as $externalParticipant) {
+				sendSanchoMail(
+					"Sancho_Mail_Coodle_Cmpltd_No_Ext",
+					[
+						"surveyCreatorName" => $creatorFullName,
+						"surveyParticipantName" => $externalParticipant->name,
+						"org" => CAMPUS_NAME,
+						"surveyTitle" => $survey->title,
+						"surveyHref" => $this->getUrlForExternalParticipant($externalParticipant),
+					],
+					$externalParticipant->email,
+					"Coodle Umfrage vollendet / Coodle survey completed"
+				);
+			}
+		}
+	}
 }

public/js/api/factory/coodle.js

@@ -25,13 +25,12 @@ export default {
 			},
 		};
 	},
-	createSurvey(surveyData, shouldInformParticipants) {
+	createSurvey(surveyData) {
 		return {
 			method: "post",
 			url: "/api/frontend/v1/coodle/CoodleSurvey/createSurvey",
 			params: {
 				surveyData,
-				shouldInformParticipants,
 			},
 		};
 	},
@@ -98,17 +97,16 @@ export default {
 			},
 		};
 	},
-	cancelSurvey(surveyId, shouldInformParticipants) {
+	cancelSurvey(surveyId) {
 		return {
 			method: "post",
 			url: "/api/frontend/v1/coodle/CoodleSurvey/cancelSurvey",
 			params: {
 				surveyId,
-				shouldInformParticipants,
 			},
 		};
 	},
-	completeSurvey(surveyId, selectedTimeslotId, selectedRoomId, shouldInformParticipants) {
+	completeSurvey(surveyId, selectedTimeslotId, selectedRoomId) {
 		return {
 			method: "post",
 			url: "/api/frontend/v1/coodle/CoodleSurvey/completeSurvey",
@@ -116,7 +114,6 @@ export default {
 				surveyId,
 				selectedTimeslotId,
 				selectedRoomId,
-				shouldInformParticipants
 			},
 		};
 	},
@@ -135,4 +132,15 @@ export default {
 			url: "/api/frontend/v1/coodle/CoodleSurvey/getCoodleIcalUrl",
 		};
 	},
+	emailParticipants(surveyId, emailType, additionalData = null) {
+		return {
+			method: "post",
+			url: "/api/frontend/v1/coodle/CoodleSurvey/emailParticipants",
+			params: {
+				surveyId,
+				emailType,
+				additionalData,
+			},
+		};
+	},
 };

public/js/components/Cis/Coodle/Components/CoodleSurvey.js

@@ -25,7 +25,13 @@ export default {
 		authExternalParticipantId: { type: Number | null },
 		isExternal: { type: Boolean, default: false },
 	},
-	emits: ["surveyCreationCanceled", "surveyCreated", "surveyUpdated"],
+	emits: [
+		"surveyCreationCanceled",
+		"surveyCreated",
+		"surveyUpdated",
+		"surveyCanceled",
+		"surveyCompleted",
+	],
 	data() {
 		return {
 			surveyFormData: null,
@@ -300,11 +306,12 @@ export default {
 			});
 
 			const surveyCreationResponse = await this.$api.call(
-				CoodleApi.createSurvey(surveyData, shouldInformParticipants),
+				CoodleApi.createSurvey(surveyData),
 			);
 			if (surveyCreationResponse.meta.status === "success") {
 				this.$emit("surveyCreated", {
 					surveyId: surveyCreationResponse.data,
+					shouldInformParticipants,
 				});
 			}
 		},
@@ -317,15 +324,12 @@ export default {
 			});
 
 			const surveyUpdateResponse = await this.$api.call(
-				CoodleApi.updateSurvey(
-					surveyData.id,
-					surveyData,
-					shouldInformParticipants,
-				),
+				CoodleApi.updateSurvey(surveyData.id, surveyData),
 			);
 			if (surveyUpdateResponse.meta.status === "success") {
 				this.$emit("surveyUpdated", {
 					surveyId: surveyData.id,
+					shouldInformParticipants,
 				});
 			}
 		},
@@ -341,7 +345,12 @@ export default {
 		<div class="card-header">
 			<coodle-survey-header
 				@editSurvey="isEditInProgress = true"
-				@surveyCanceled="$emit('surveyUpdated', {surveyId: $props.survey.id})"
+				@surveyCanceled="
+					$emit('surveyCanceled', {
+						surveyId: $props.survey.id,
+						shouldInformParticipants: $event.shouldInformParticipants
+					})
+				"
 				:survey="$props.survey"
 				:isEditInProgress="isEditInProgress"
 				:authUid="$props.authInfo?.uid"
@@ -384,7 +393,13 @@ export default {
 				<div v-if="!isEditInProgress && $props.survey" class="d-flex flex-column gap-2">
 					<coodle-survey-voting-table
 						@selectionSubmitted="$emit('surveyUpdated', {surveyId: $props.survey.id})"
-						@surveyCompleted="$emit('surveyUpdated', {surveyId: $props.survey.id})"
+						@surveyCompleted="
+							$emit('surveyCompleted',{
+								surveyId: $props.survey.id,
+								shouldInformParticipants: $event.shouldInformParticipants,
+								selectedRoomId: $event.selectedRoomId
+							})
+						"
 						:authUid="$props.authInfo?.uid"
 						:timeslots="parsedTimeslotsForVotingTable"
 						:survey="$props.survey"

public/js/components/Cis/Coodle/Components/CoodleSurvey/CoodleSurveyHeader.js

@@ -56,11 +56,10 @@ export default {
 			const cancellationResponse = await this.$api.call(
 				CoodleApi.cancelSurvey(
 					this.$props.survey.id,
-					shouldInformParticipants,
 				),
 			);
 			if ((cancellationResponse.meta.status = "success")) {
-				this.$emit("surveyCanceled");
+				this.$emit("surveyCanceled", { shouldInformParticipants });
 			}
 		},
 		async sendReminders() {
@@ -86,7 +85,7 @@ export default {
 			});
 			if (!reminderConfirmation) return;
 
-			const remindersResponse = this.$api.call(
+			const remindersResponse = await this.$api.call(
 				CoodleApi.sendReminders(this.$props.survey.id),
 			);
 			if (remindersResponse.meta.status === "success") {

public/js/components/Cis/Coodle/Components/CoodleSurvey/CoodleSurveyVotingTable.js

@@ -421,11 +421,13 @@ export default {
 					this.$props.survey.id,
 					selectedTimeslotId,
 					this.selectedRoomIdentifier,
-					shouldInformParticipants,
 				),
 			);
 			if (completionResponse.meta.status === "success") {
-				this.$emit("surveyCompleted");
+				this.$emit("surveyCompleted", {
+					shouldInformParticipants,
+					selectedRoomId: this.selectedRoomIdentifier,
+				});
 			}
 		},
 		async fetchAvailableRooms() {

public/js/components/Cis/Coodle/Coodle.js

@@ -94,6 +94,44 @@ export default {
 				voteTallies: surveyData.vote_tallies,
 			};
 		},
+		async afterSurveyCreated(surveyId, shouldInformParticipants) {
+			await this.showSurveyDetails(surveyId);
+			if (shouldInformParticipants) {
+				this.$api.call(
+					CoodleApi.emailParticipants(surveyId, "created"),
+				);
+			}
+		},
+		async afterSurveyUpdated(surveyId, shouldInformParticipants) {
+			await this.showSurveyDetails(surveyId);
+			if (shouldInformParticipants) {
+				this.$api.call(
+					CoodleApi.emailParticipants(surveyId, "updated"),
+				);
+			}
+		},
+		async afterSurveyCanceled(surveyId, shouldInformParticipants) {
+			await this.showSurveyDetails(surveyId);
+			if (shouldInformParticipants) {
+				this.$api.call(
+					CoodleApi.emailParticipants(surveyId, "canceled"),
+				);
+			}
+		},
+		async afterSurveyCompleted(
+			surveyId,
+			shouldInformParticipants,
+			selectedRoomId,
+		) {
+			await this.showSurveyDetails(surveyId);
+			if (shouldInformParticipants) {
+				this.$api.call(
+					CoodleApi.emailParticipants(surveyId, "completed", {
+						selectedRoomId,
+					}),
+				);
+			}
+		},
 	},
 	async created() {
 		await this.getAuthInfo();
@@ -172,8 +210,12 @@ export default {
 			<coodle-survey
 				v-else-if="view === 'survey'"
 				@surveyCreationCanceled="switchToTab('activeSurveysTable')"
-				@surveyCreated="showSurveyDetails($event.surveyId)"
-				@surveyUpdated="showSurveyDetails($event.surveyId)"
+				@surveyCreated="afterSurveyCreated($event.surveyId, $event.shouldInformParticipants)"
+				@surveyUpdated="afterSurveyUpdated($event.surveyId, $event.shouldInformParticipants)"
+				@surveyCanceled="afterSurveyCanceled($event.surveyId, $event.shouldInformParticipants)"
+				@surveyCompleted="
+					afterSurveyCompleted($event.surveyId, $event.shouldInformParticipants, $event.selectedRoomId)
+				"
 				:survey="survey"
 				:authInfo="authInfo"
 			/>