From a993b8a488a09cd151a00fc8ef8c1d4a55a16b19 Mon Sep 17 00:00:00 2001
From: grimsi <9295182+grimsi@users.noreply.github.com>
Date: Sat, 21 Sep 2024 19:24:43 +0200
Subject: [PATCH] Implement notification templates Refactor notification
 providers to be more expandable in the future Minor layout changes

---
 .run/Production build.run.xml                 |  24 ++++
 .../administration/NotificationManagement.tsx | 132 ++++++++++++++----
 .../administration/SsoManagement.tsx          |   2 +-
 .../administration/withConfigPage.tsx         |   9 +-
 .../components/general/CheckboxInput.tsx      |   2 +-
 .../frontend/components/general/Input.tsx     |   2 +-
 .../components/general/SelectInput.tsx        |   2 +-
 .../gameyfin/config/ConfigProperties.kt       |  38 ++++-
 .../gameyfin/config/entities/ConfigEntry.kt   |   6 +-
 .../notifications/NotificationEndpoint.kt     |  27 +---
 .../notifications/NotificationService.kt      |  22 +++
 .../notifications/dto/EmailCredentialsDto.kt  |   8 --
 .../gameyfin/notifications/events/Events.kt   |  13 ++
 .../providers/AbstractNotificationProvider.kt |  20 +++
 .../providers/EmailNotificationProvider.kt    |  41 ++++++
 15 files changed, 276 insertions(+), 72 deletions(-)
 create mode 100644 .run/Production build.run.xml
 create mode 100644 src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationService.kt
 delete mode 100644 src/main/kotlin/de/grimsi/gameyfin/notifications/dto/EmailCredentialsDto.kt
 create mode 100644 src/main/kotlin/de/grimsi/gameyfin/notifications/events/Events.kt
 create mode 100644 src/main/kotlin/de/grimsi/gameyfin/notifications/providers/AbstractNotificationProvider.kt
 create mode 100644 src/main/kotlin/de/grimsi/gameyfin/notifications/providers/EmailNotificationProvider.kt

diff --git a/.run/Production build.run.xml b/.run/Production build.run.xml
new file mode 100644
index 0000000..b8017b7
--- /dev/null
+++ b/.run/Production build.run.xml	
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Production build" type="GradleRunConfiguration" factoryName="Gradle">
+    <ExternalSystemSettings>
+      <option name="executionName" />
+      <option name="externalProjectPath" value="$PROJECT_DIR$" />
+      <option name="externalSystemIdString" value="GRADLE" />
+      <option name="scriptParameters" value="-P hilla.productionMode=true" />
+      <option name="taskDescriptions">
+        <list />
+      </option>
+      <option name="taskNames">
+        <list>
+          <option value="build" />
+        </list>
+      </option>
+      <option name="vmOptions" />
+    </ExternalSystemSettings>
+    <ExternalSystemDebugServerProcess>true</ExternalSystemDebugServerProcess>
+    <ExternalSystemReattachDebugProcess>true</ExternalSystemReattachDebugProcess>
+    <DebugAllEnabled>false</DebugAllEnabled>
+    <RunAsTest>false</RunAsTest>
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/frontend/components/administration/NotificationManagement.tsx b/src/main/frontend/components/administration/NotificationManagement.tsx
index 76e8487..3d3db43 100644
--- a/src/main/frontend/components/administration/NotificationManagement.tsx
+++ b/src/main/frontend/components/administration/NotificationManagement.tsx
@@ -1,24 +1,38 @@
-import React from "react";
+import React, {useState} from "react";
 import withConfigPage from "Frontend/components/administration/withConfigPage";
 import * as Yup from 'yup';
 import ConfigFormField from "Frontend/components/administration/ConfigFormField";
 import Section from "Frontend/components/general/Section";
-import {Button, Input, Select, SelectItem} from "@nextui-org/react";
-import {NotificationEndpoint} from "Frontend/generated/endpoints";
-import EmailCredentialsDto from "Frontend/generated/de/grimsi/gameyfin/notifications/dto/EmailCredentialsDto";
+import {
+    Button,
+    Card,
+    Modal,
+    ModalBody,
+    ModalContent,
+    ModalFooter,
+    ModalHeader,
+    Textarea,
+    useDisclosure
+} from "@nextui-org/react";
+import {ConfigEndpoint, NotificationEndpoint} from "Frontend/generated/endpoints";
 import {toast} from "sonner";
+import ConfigEntryDto from "Frontend/generated/de/grimsi/gameyfin/config/dto/ConfigEntryDto";
+import {Pencil} from "@phosphor-icons/react";
 
-function NotificationManagementLayout({getConfig, formik}: any) {
+function NotificationManagementLayout({getConfig, getConfigs, formik}: any) {
 
-    async function testMailSettings() {
-        const credentials: EmailCredentialsDto = {
-            host: formik.values.notifications.email.host,
-            port: formik.values.notifications.email.port,
-            username: formik.values.notifications.email.username,
-            password: formik.values.notifications.email.password
+    const {isOpen, onOpen, onOpenChange} = useDisclosure();
+    const [selectedTemplate, setSelectedTemplate] = useState<ConfigEntryDto | null>(null);
+
+    async function verifyCredentials(provider: string) {
+        const credentials: Record<string, any> = {
+            host: formik.values.notifications.providers.email.host,
+            port: formik.values.notifications.providers.email.port,
+            username: formik.values.notifications.providers.email.username,
+            password: formik.values.notifications.providers.email.password
         }
 
-        const areCredentialsValid = await NotificationEndpoint.verifyEmailCredentials(credentials);
+        const areCredentialsValid = await NotificationEndpoint.verifyCredentials(provider, credentials);
 
         if (areCredentialsValid) {
             toast.success("Credentials are valid")
@@ -27,6 +41,19 @@ function NotificationManagementLayout({getConfig, formik}: any) {
         }
     }
 
+    async function openModal(template: ConfigEntryDto) {
+        let templateContent = await ConfigEndpoint.get(template.key);
+        setSelectedTemplate({
+            ...template,
+            value: templateContent
+        });
+        onOpen();
+    }
+
+    async function saveTemplate(template: ConfigEntryDto) {
+        await ConfigEndpoint.set(template.key, template.value);
+    }
+
     return (
         <div className="flex flex-col">
             <div className="flex flex-row">
@@ -36,36 +63,83 @@ function NotificationManagementLayout({getConfig, formik}: any) {
                     <div className="flex flex-row gap-8">
                         <div className="flex flex-col flex-1">
                             <Section title="E-Mail"/>
-                            <ConfigFormField configElement={getConfig("notifications.email.host")}
+                            <ConfigFormField configElement={getConfig("notifications.providers.email.host")}
                                              isDisabled={!formik.values.notifications.enabled}/>
-                            <ConfigFormField configElement={getConfig("notifications.email.port")}
+                            <ConfigFormField configElement={getConfig("notifications.providers.email.port")}
                                              isDisabled={!formik.values.notifications.enabled}/>
-                            <ConfigFormField configElement={getConfig("notifications.email.username")}
+                            <ConfigFormField configElement={getConfig("notifications.providers.email.username")}
                                              isDisabled={!formik.values.notifications.enabled}/>
-                            <ConfigFormField configElement={getConfig("notifications.email.password")}
+                            <ConfigFormField configElement={getConfig("notifications.providers.email.password")}
                                              type="password"
                                              isDisabled={!formik.values.notifications.enabled}/>
-                            <Button onPress={testMailSettings}
+                            <Button onPress={() => verifyCredentials("email")}
                                     isDisabled={!(
                                         formik.values.notifications.enabled &&
-                                        formik.values.notifications.email.host &&
-                                        formik.values.notifications.email.port &&
-                                        formik.values.notifications.email.username)}>Test</Button>
+                                        formik.values.notifications.providers.email.host &&
+                                        formik.values.notifications.providers.email.port &&
+                                        formik.values.notifications.providers.email.username)}>Test</Button>
                         </div>
                         <div className="flex flex-col flex-1">
-                            <Section title="Push"/>
-                            {/* TODO: Evaluate need and options if need is given */}
-                            <Select className="mt-2 mb-10"
-                                    label="Push notification provider" defaultSelectedKeys={["pushbullet"]}
-                                    isDisabled>
-                                <SelectItem key="pushbullet">Pushbullet</SelectItem>
-                            </Select>
-                            <Input className="mt-2 mb-10" label="Access Token" type="password" isDisabled/>
-                            <Input className="mt-2 mb-10" label="Channel tag" type="text" isDisabled/>
+                            <Section title="Message Templates"/>
+                            <div className="flex flex-col gap-4">
+                                {getConfigs("notifications.templates").map((template: ConfigEntryDto) =>
+                                    <Card className="flex flex-row items-center gap-2 p-4">
+                                        <Button isIconOnly
+                                                size="sm"
+                                                onPress={() => openModal(template)}
+                                        >
+                                            <Pencil/>
+                                        </Button>
+                                        <p className="text-lg">{template.description}</p>
+                                    </Card>
+                                )}
+                            </div>
                         </div>
                     </div>
                 </div>
             </div>
+
+            <Modal isOpen={isOpen} onOpenChange={onOpenChange} size="5xl">
+                <ModalContent>
+                    {(onClose) => (
+                        <>
+                            <ModalHeader
+                                className="flex flex-col gap-1">Edit {selectedTemplate?.description.toLowerCase()}</ModalHeader>
+                            <ModalBody>
+                                <Textarea
+                                    size="lg"
+                                    autoFocus
+                                    disableAutosize
+                                    value={selectedTemplate?.value}
+                                    onChange={(e) => {
+                                        if (selectedTemplate?.key) setSelectedTemplate({
+                                            ...selectedTemplate,
+                                            value: e.target.value
+                                        })
+                                    }}
+                                    classNames={{
+                                        input: "resize-y min-h-[500px]"
+                                    }}
+                                />
+                            </ModalBody>
+                            <ModalFooter>
+                                <Button color="danger" variant="light" onPress={onClose}>
+                                    Close
+                                </Button>
+                                <Button color="primary" onPress={async () => {
+                                    if (selectedTemplate) {
+                                        await saveTemplate(selectedTemplate);
+                                        toast.success("Template saved")
+                                        onClose();
+                                    }
+                                }}>
+                                    Save
+                                </Button>
+                            </ModalFooter>
+                        </>
+                    )}
+                </ModalContent>
+            </Modal>
         </div>
     );
 }
diff --git a/src/main/frontend/components/administration/SsoManagement.tsx b/src/main/frontend/components/administration/SsoManagement.tsx
index 4df5384..6f2bed1 100644
--- a/src/main/frontend/components/administration/SsoManagement.tsx
+++ b/src/main/frontend/components/administration/SsoManagement.tsx
@@ -66,7 +66,7 @@ function SsoManagementLayout({getConfig, formik, setSaveMessage}: any) {
                         <Button
                             isDisabled={isAutoPopulateDisabled()}
                             onPress={autoPopulate}
-                            className="h-14 mt-2"><MagicWand className="min-w-5"/> Auto-populate</Button>
+                            className="h-14"><MagicWand className="min-w-5"/> Auto-populate</Button>
                     </div>
                     <ConfigFormField configElement={getConfig("sso.oidc.authorize-url")}
                                      isDisabled={!formik.values.sso.oidc.enabled}/>
diff --git a/src/main/frontend/components/administration/withConfigPage.tsx b/src/main/frontend/components/administration/withConfigPage.tsx
index a879df4..adc25b3 100644
--- a/src/main/frontend/components/administration/withConfigPage.tsx
+++ b/src/main/frontend/components/administration/withConfigPage.tsx
@@ -44,6 +44,10 @@ export default function withConfigPage(WrappedComponent: React.ComponentType<any
             return configDtos.find((configDto: ConfigEntryDto) => configDto.key === key);
         }
 
+        function getConfigs(prefix: string) {
+            return configDtos.filter((configDto: ConfigEntryDto) => configDto.key?.startsWith(prefix));
+        }
+
         function toNestedConfig(configArray: ConfigEntryDto[]): NestedConfig {
             const nestedConfig: NestedConfig = {};
 
@@ -143,7 +147,10 @@ export default function withConfigPage(WrappedComponent: React.ComponentType<any
                             </div>
                         </div>
 
-                        <WrappedComponent {...props} getConfig={getConfig} formik={formik}
+                        <WrappedComponent {...props}
+                                          getConfig={getConfig}
+                                          getConfigs={getConfigs}
+                                          formik={formik}
                                           setSaveMessage={setSaveMessage}/>
                     </Form>
                 )}
diff --git a/src/main/frontend/components/general/CheckboxInput.tsx b/src/main/frontend/components/general/CheckboxInput.tsx
index 0dce16b..d5491df 100644
--- a/src/main/frontend/components/general/CheckboxInput.tsx
+++ b/src/main/frontend/components/general/CheckboxInput.tsx
@@ -7,7 +7,7 @@ const CheckboxInput = ({label, ...props}) => {
     const [field] = useField(props);
 
     return (
-        <div className="flex flex-row flex-1 items-center gap-2 my-2">
+        <div className="flex flex-row flex-1 items-center gap-2">
             <Checkbox
                 {...field}
                 {...props}
diff --git a/src/main/frontend/components/general/Input.tsx b/src/main/frontend/components/general/Input.tsx
index ba0657f..01218c7 100644
--- a/src/main/frontend/components/general/Input.tsx
+++ b/src/main/frontend/components/general/Input.tsx
@@ -9,7 +9,7 @@ const Input = ({label, ...props}) => {
     const [field, meta] = useField(props);
 
     return (
-        <div className="flex flex-col flex-1 items-start gap-2 my-2">
+        <div className="flex flex-col flex-1 items-start gap-2">
             <NextUiInput
                 {...props}
                 {...field}
diff --git a/src/main/frontend/components/general/SelectInput.tsx b/src/main/frontend/components/general/SelectInput.tsx
index 0851e3a..3c48e43 100644
--- a/src/main/frontend/components/general/SelectInput.tsx
+++ b/src/main/frontend/components/general/SelectInput.tsx
@@ -7,7 +7,7 @@ const SelectInput = ({label, values, ...props}) => {
     const [field] = useField(props);
 
     return (
-        <div className="flex flex-row flex-1 justify-center gap-2 my-2">
+        <div className="flex flex-row flex-1 justify-center gap-2">
             <Select
                 {...field}
                 {...props}
diff --git a/src/main/kotlin/de/grimsi/gameyfin/config/ConfigProperties.kt b/src/main/kotlin/de/grimsi/gameyfin/config/ConfigProperties.kt
index 116dfa2..7976f7a 100644
--- a/src/main/kotlin/de/grimsi/gameyfin/config/ConfigProperties.kt
+++ b/src/main/kotlin/de/grimsi/gameyfin/config/ConfigProperties.kt
@@ -137,29 +137,59 @@ sealed class ConfigProperties<T : Serializable>(
 
     data object NotificationsEmailHost : ConfigProperties<String>(
         String::class,
-        "notifications.email.host",
+        "notifications.providers.email.host",
         "URL of the email server"
     )
 
     data object NotificationsEmailPort : ConfigProperties<Int>(
         Int::class,
-        "notifications.email.port",
+        "notifications.providers.email.port",
         "Port of the email server",
         587
     )
 
     data object NotificationsEmailUsername : ConfigProperties<String>(
         String::class,
-        "notifications.email.username",
+        "notifications.providers.email.username",
         "Username for the email account"
     )
 
     data object NotificationsEmailPassword : ConfigProperties<String>(
         String::class,
-        "notifications.email.password",
+        "notifications.providers.email.password",
         "Password for the email account"
     )
 
+    data object NotificationsTemplateNewUser : ConfigProperties<String>(
+        String::class,
+        "notifications.templates.new-user",
+        "Template for new user notifications"
+    )
+
+    data object NotificationsTemplateNewInvite : ConfigProperties<String>(
+        String::class,
+        "notifications.templates.new-invite",
+        "Template for new user notifications"
+    )
+
+    data object NotificationsTemplateNewPasswordRequest : ConfigProperties<String>(
+        String::class,
+        "notifications.templates.new-password-request",
+        "Template for new password request notifications"
+    )
+
+    data object NotificationsTemplateNewGame : ConfigProperties<String>(
+        String::class,
+        "notifications.templates.new-game",
+        "Template for new game notifications"
+    )
+
+    data object NotificationsTemplateNewGameRequest : ConfigProperties<String>(
+        String::class,
+        "notifications.templates.new-game-request",
+        "Template for new game request notifications"
+    )
+
     /** Logs */
     data object LogsFolder : ConfigProperties<String>(
         String::class,
diff --git a/src/main/kotlin/de/grimsi/gameyfin/config/entities/ConfigEntry.kt b/src/main/kotlin/de/grimsi/gameyfin/config/entities/ConfigEntry.kt
index bce14e8..e447717 100644
--- a/src/main/kotlin/de/grimsi/gameyfin/config/entities/ConfigEntry.kt
+++ b/src/main/kotlin/de/grimsi/gameyfin/config/entities/ConfigEntry.kt
@@ -1,9 +1,6 @@
 package de.grimsi.gameyfin.config.entities
 
-import jakarta.persistence.Column
-import jakarta.persistence.Entity
-import jakarta.persistence.Id
-import jakarta.persistence.Table
+import jakarta.persistence.*
 import jakarta.validation.constraints.NotNull
 
 @Entity
@@ -15,6 +12,7 @@ class ConfigEntry(
     val key: String,
 
     @NotNull
+    @Lob
     @Column(name = "`value`")
     var value: String
 )
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationEndpoint.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationEndpoint.kt
index d53ddae..7ac835b 100644
--- a/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationEndpoint.kt
+++ b/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationEndpoint.kt
@@ -2,32 +2,15 @@ package de.grimsi.gameyfin.notifications
 
 import com.vaadin.hilla.Endpoint
 import de.grimsi.gameyfin.core.Roles
-import de.grimsi.gameyfin.notifications.dto.EmailCredentialsDto
 import jakarta.annotation.security.RolesAllowed
-import jakarta.mail.MessagingException
-import jakarta.mail.Session
-import java.util.*
 
 @Endpoint
 @RolesAllowed(Roles.Names.SUPERADMIN, Roles.Names.ADMIN)
-class NotificationEndpoint {
+class NotificationEndpoint(
+    private val notificationService: NotificationService
+) {
 
-    fun verifyEmailCredentials(credentials: EmailCredentialsDto): Boolean {
-        val properties = Properties()
-        properties["mail.smtp.auth"] = true
-        properties["mail.smtp.starttls.enable"] = true
-        properties["mail.smtp.host"] = credentials.host
-        properties["mail.smtp.port"] = credentials.port
-
-        val session = Session.getInstance(properties)
-
-        try {
-            val transport = session.getTransport("smtp")
-            transport.connect(credentials.host, credentials.port, credentials.username, credentials.password)
-            transport.close()
-            return true
-        } catch (_: MessagingException) {
-            return false
-        }
+    fun verifyCredentials(provider: String, credentials: Map<String, Any>): Boolean {
+        return notificationService.testCredentials(provider, credentials)
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationService.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationService.kt
new file mode 100644
index 0000000..49d1611
--- /dev/null
+++ b/src/main/kotlin/de/grimsi/gameyfin/notifications/NotificationService.kt
@@ -0,0 +1,22 @@
+package de.grimsi.gameyfin.notifications
+
+import de.grimsi.gameyfin.notifications.providers.AbstractNotificationProvider
+import org.springframework.context.ApplicationContext
+import org.springframework.stereotype.Service
+import java.util.*
+
+@Service
+class NotificationService(
+    private val applicationContext: ApplicationContext
+) {
+
+    private val providers: List<AbstractNotificationProvider>
+        get() = applicationContext.getBeansOfType(AbstractNotificationProvider::class.java).values.toList()
+
+    fun testCredentials(provider: String, credentials: Map<String, Any>): Boolean {
+        val notificationProvider = providers.find { it.providerKey == provider }
+        val credentialsProperties = Properties().apply { putAll(credentials) }
+        return notificationProvider?.testCredentials(credentialsProperties)
+            ?: throw IllegalArgumentException("Provider $provider not found")
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/dto/EmailCredentialsDto.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/dto/EmailCredentialsDto.kt
deleted file mode 100644
index cf177d0..0000000
--- a/src/main/kotlin/de/grimsi/gameyfin/notifications/dto/EmailCredentialsDto.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-package de.grimsi.gameyfin.notifications.dto
-
-data class EmailCredentialsDto(
-    val host: String,
-    val port: Int,
-    val username: String,
-    val password: String?
-)
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/events/Events.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/events/Events.kt
new file mode 100644
index 0000000..4affd3a
--- /dev/null
+++ b/src/main/kotlin/de/grimsi/gameyfin/notifications/events/Events.kt
@@ -0,0 +1,13 @@
+package de.grimsi.gameyfin.notifications.events
+
+import org.springframework.context.ApplicationEvent
+
+class UserInvitationEvent(source: Any) : ApplicationEvent(source)
+
+class UserRegistrationEvent(source: Any) : ApplicationEvent(source)
+
+class PasswordResetRequestEvent(source: Any) : ApplicationEvent(source)
+
+class GameRequestEvent(source: Any) : ApplicationEvent(source)
+
+class GameRequestApprovalEvent(source: Any) : ApplicationEvent(source)
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/AbstractNotificationProvider.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/AbstractNotificationProvider.kt
new file mode 100644
index 0000000..8286ef8
--- /dev/null
+++ b/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/AbstractNotificationProvider.kt
@@ -0,0 +1,20 @@
+package de.grimsi.gameyfin.notifications.providers
+
+import de.grimsi.gameyfin.config.ConfigService
+import java.util.*
+
+abstract class AbstractNotificationProvider(
+    val providerKey: String,
+    private val config: ConfigService
+) {
+    private val configKey = String.format("notifications.providers.%s.enabled", providerKey)
+
+    fun isEnabled(): Boolean {
+        return config.get(configKey).toBoolean()
+    }
+
+    abstract fun testCredentials(credentials: Properties): Boolean
+
+    abstract fun sendNotification(recipient: String, title: String, message: String)
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/EmailNotificationProvider.kt b/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/EmailNotificationProvider.kt
new file mode 100644
index 0000000..b38ea9a
--- /dev/null
+++ b/src/main/kotlin/de/grimsi/gameyfin/notifications/providers/EmailNotificationProvider.kt
@@ -0,0 +1,41 @@
+package de.grimsi.gameyfin.notifications.providers
+
+import de.grimsi.gameyfin.config.ConfigService
+import jakarta.mail.MessagingException
+import jakarta.mail.Session
+import org.springframework.stereotype.Service
+import java.util.*
+
+@Service
+class EmailNotificationProvider(
+    configService: ConfigService
+) : AbstractNotificationProvider("email", configService) {
+
+    override fun testCredentials(credentials: Properties): Boolean {
+        try {
+            val sessionProperties = Properties()
+            sessionProperties["mail.smtp.auth"] = true
+            sessionProperties["mail.smtp.starttls.enable"] = true
+            sessionProperties["mail.smtp.host"] = credentials["host"] as String
+            sessionProperties["mail.smtp.port"] = credentials["port"] as Int
+
+            val session = Session.getInstance(sessionProperties)
+
+            val transport = session.getTransport("smtp")
+            transport.connect(
+                credentials["host"] as String,
+                credentials["port"] as Int,
+                credentials["username"] as String,
+                credentials["password"] as String
+            )
+            transport.close()
+            return true
+        } catch (_: MessagingException) {
+            return false
+        }
+    }
+
+    override fun sendNotification(recipient: String, title: String, message: String) {
+        TODO("Not yet implemented")
+    }
+}
\ No newline at end of file