Poll for new notifications

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationCustomDeserializers.kt

@@ -114,6 +114,12 @@ class NotConditionDeserializer : JsonDeserializer<NotificationExpression.NotCond
     }
 }
 
+// Create a custom deserializer if needed
+class NotificationTypeDeserializer : JsonDeserializer<NotificationScheduleType>() {
+    override fun deserialize(p: JsonParser, ctxt: DeserializationContext): NotificationScheduleType =
+        NotificationScheduleType.fromString(p.valueAsString)
+}
+
 private fun JsonNode.toNotificationExpressions(p: JsonParser): List<NotificationExpression> = this.map { element ->
     val parser = element.traverse(p.codec)
     parser.nextToken()

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationFormatUtils.kt

@@ -27,15 +27,32 @@ data class NotificationData(
 )
 
 data class NotificationSchedule(
-    val type: String,
-)
+    @JsonDeserialize(using = NotificationTypeDeserializer::class)
+    val type: NotificationScheduleType,
+) {
+    constructor(type: String) : this(NotificationScheduleType.fromString(type))
+}
 
 enum class NotificationSeverity {
     INFO,
     WARNING,
     CRITICAL,
 }
 
+enum class NotificationScheduleType {
+    STARTUP,
+    EMERGENCY,
+    ;
+
+    companion object {
+        fun fromString(value: String): NotificationScheduleType =
+            when (value.lowercase()) {
+                "startup" -> STARTUP
+                else -> EMERGENCY
+            }
+    }
+}
+
 data class NotificationContentDescriptionLocale(
     @JsonProperty("en-US")
     val locale: NotificationContentDescription,

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationPanel.kt

@@ -15,13 +15,14 @@ class NotificationPanel : BorderLayoutPanel() {
     init {
         isOpaque = false
         addToCenter(wrapper)
-        ProcessNotificationsBase.showBannerNotification.forEach {
-            updateNotificationPanel(it.value)
+        BannerNotificationService.getInstance().getNotifications().forEach { (_, content) ->
+            updateNotificationPanel(content)
         }
     }
 
     private fun removeNotificationPanel(notificationId: String) = runInEdt {
-        ProcessNotificationsBase.showBannerNotification.remove(notificationId) // TODO: add id to dismissed notification list
+        BannerNotificationService.getInstance().removeNotification(notificationId)
+        NotificationDismissalState.getInstance().dismissNotification(notificationId)
         wrapper.removeAll()
     }
 

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationPollingService.kt

@@ -0,0 +1,162 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.core.notifications
+
+import com.fasterxml.jackson.module.kotlin.readValue
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.components.Service
+import com.intellij.util.Alarm
+import com.intellij.util.AlarmFactory
+import com.intellij.util.io.HttpRequests
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.annotations.VisibleForTesting
+import software.aws.toolkits.core.utils.RemoteResolveParser
+import software.aws.toolkits.core.utils.RemoteResource
+import software.aws.toolkits.core.utils.error
+import software.aws.toolkits.core.utils.getLogger
+import software.aws.toolkits.core.utils.warn
+import software.aws.toolkits.jetbrains.core.DefaultRemoteResourceResolverProvider
+import software.aws.toolkits.jetbrains.core.RemoteResourceResolverProvider
+import software.aws.toolkits.telemetry.Component
+import software.aws.toolkits.telemetry.ToolkitTelemetry
+import java.io.InputStream
+import java.time.Duration
+import java.util.concurrent.atomic.AtomicBoolean
+
+private const val MAX_RETRIES = 3
+private const val RETRY_DELAY_MS = 1000L
+
+object NotificationFileValidator : RemoteResolveParser {
+    override fun canBeParsed(data: InputStream): Boolean =
+        try {
+            NotificationMapperUtil.mapper.readValue<NotificationsList>(data)
+            true
+        } catch (e: Exception) {
+            false
+        }
+}
+
+object NotificationEndpoint {
+    private var overriddenEndpoint: String? = null
+
+    fun getEndpoint(): String = overriddenEndpoint ?: DEFAULT_ENDPOINT
+
+    @VisibleForTesting
+    fun setTestEndpoint(endpoint: String) {
+        overriddenEndpoint = endpoint
+    }
+
+    @VisibleForTesting
+    fun resetEndpoint() {
+        overriddenEndpoint = null
+    }
+
+    private const val DEFAULT_ENDPOINT = "" // TODO: Replace with actual endpoint
+}
+
+@Service(Service.Level.APP)
+internal final class NotificationPollingService : Disposable {
+    private val isFirstPoll = AtomicBoolean(true)
+    private val observers = mutableListOf<() -> Unit>()
+    private val alarm = AlarmFactory.getInstance().create(Alarm.ThreadToUse.POOLED_THREAD, this)
+    private val pollingIntervalMs = Duration.ofMinutes(10).toMillis()
+    private val resourceResolver: RemoteResourceResolverProvider = DefaultRemoteResourceResolverProvider()
+    private val notificationsResource = object : RemoteResource {
+        override val name: String = "notifications.json"
+        override val urls: List<String> = listOf(NotificationEndpoint.getEndpoint())
+        override val remoteResolveParser: RemoteResolveParser = NotificationFileValidator
+    }
+
+    fun startPolling() {
+        val newNotifications = runBlocking { pollForNotifications() }
+        if (newNotifications) {
+            notifyObservers()
+        }
+        alarm.addRequest(
+            { startPolling() },
+            pollingIntervalMs
+        )
+    }
+
+    /**
+     * Main polling function that checks for updates and downloads if necessary
+     * Returns the parsed notifications if successful, null otherwise
+     */
+    private suspend fun pollForNotifications(): Boolean {
+        var retryCount = 0
+        var lastException: Exception? = null
+
+        while (retryCount < MAX_RETRIES) {
+            try {
+                val newETag = getNotificationETag()
+                if (newETag == NotificationEtagState.getInstance().etag) {
+                    // for when we need to notify on first poll even when there's no new ETag
+                    if (isFirstPoll.compareAndSet(true, false)) {
+                        notifyObservers()
+                    }
+                    return false
+                }
+                resourceResolver.get()
+                    .resolve(notificationsResource)
+                    .toCompletableFuture()
+                    .get()
+                NotificationEtagState.getInstance().etag = newETag
+                return true
+            } catch (e: Exception) {
+                lastException = e
+                LOG.error(e) { "Failed to poll for notifications (attempt ${retryCount + 1}/$MAX_RETRIES)" }
+                retryCount++
+                if (retryCount < MAX_RETRIES) {
+                    val backoffDelay = RETRY_DELAY_MS * (1L shl (retryCount - 1))
+                    delay(backoffDelay)
+                }
+            }
+        }
+        emitFailureMetric(lastException)
+        return false
+    }
+
+    private fun getNotificationETag(): String =
+        try {
+            HttpRequests.request(NotificationEndpoint.getEndpoint())
+                .userAgent("AWS Toolkit for JetBrains")
+                .connect { request ->
+                    request.connection.headerFields["ETag"]?.firstOrNull().orEmpty()
+                }
+        } catch (e: Exception) {
+            LOG.warn { "Failed to fetch notification ETag: $e.message" }
+            throw e
+        }
+
+    private fun emitFailureMetric(e: Exception?) {
+        ToolkitTelemetry.showNotification(
+            project = null,
+            component = Component.Filesystem,
+            id = "",
+            reason = "Failed to poll for notifications",
+            success = false,
+            reasonDesc = "${e?.javaClass?.simpleName ?: "Unknown"}: ${e?.message ?: "No message"}",
+        )
+    }
+
+    fun addObserver(observer: () -> Unit) = observers.add(observer)
+
+    private fun notifyObservers() {
+        observers.forEach { observer ->
+            observer()
+        }
+    }
+
+    override fun dispose() {
+        alarm.dispose()
+    }
+
+    companion object {
+        private val LOG = getLogger<NotificationPollingService>()
+        fun getInstance(): NotificationPollingService =
+            ApplicationManager.getApplication().getService(NotificationPollingService::class.java)
+    }
+}

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationServiceInitializer.kt

@@ -0,0 +1,20 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.core.notifications
+
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.startup.ProjectActivity
+import java.util.concurrent.atomic.AtomicBoolean
+
+internal class NotificationServiceInitializer : ProjectActivity {
+
+    private val initialized = AtomicBoolean(false)
+
+    override suspend fun execute(project: Project) {
+        if (initialized.compareAndSet(false, true)) {
+            val service = NotificationPollingService.getInstance()
+            service.startPolling()
+        }
+    }
+}

plugins/core/jetbrains-community/src/software/aws/toolkits/jetbrains/core/notifications/NotificationStateUtils.kt

@@ -0,0 +1,87 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.core.notifications
+
+import com.intellij.openapi.components.PersistentStateComponent
+import com.intellij.openapi.components.RoamingType
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.components.State
+import com.intellij.openapi.components.Storage
+import com.intellij.openapi.components.service
+
+@Service
+@State(name = "notificationDismissals", storages = [Storage("aws.xml", roamingType = RoamingType.DISABLED)])
+class NotificationDismissalState : PersistentStateComponent<NotificationDismissalConfiguration> {
+    private val state = NotificationDismissalConfiguration()
+
+    override fun getState(): NotificationDismissalConfiguration = state
+
+    override fun loadState(state: NotificationDismissalConfiguration) {
+        this.state.dismissedNotificationIds.clear()
+        this.state.dismissedNotificationIds.addAll(state.dismissedNotificationIds)
+    }
+
+    fun isDismissed(notificationId: String): Boolean =
+        state.dismissedNotificationIds.contains(notificationId)
+
+    fun dismissNotification(notificationId: String) {
+        state.dismissedNotificationIds.add(notificationId)
+    }
+
+    companion object {
+        fun getInstance(): NotificationDismissalState =
+            service()
+    }
+}
+
+data class NotificationDismissalConfiguration(
+    var dismissedNotificationIds: MutableSet<String> = mutableSetOf(),
+)
+
+@Service
+@State(name = "notificationEtag", storages = [Storage("aws.xml", roamingType = RoamingType.DISABLED)])
+class NotificationEtagState : PersistentStateComponent<NotificationEtagConfiguration> {
+    private val state = NotificationEtagConfiguration()
+
+    override fun getState(): NotificationEtagConfiguration = state
+
+    override fun loadState(state: NotificationEtagConfiguration) {
+        this.state.etag = state.etag
+    }
+
+    var etag: String?
+        get() = state.etag
+        set(value) {
+            state.etag = value
+        }
+
+    companion object {
+        fun getInstance(): NotificationEtagState =
+            service()
+    }
+}
+
+data class NotificationEtagConfiguration(
+    var etag: String? = null,
+)
+
+@Service
+class BannerNotificationService {
+    private val notifications = mutableMapOf<String, BannerContent>()
+
+    fun addNotification(id: String, content: BannerContent) {
+        notifications[id] = content
+    }
+
+    fun getNotifications(): Map<String, BannerContent> = notifications
+
+    fun removeNotification(id: String) {
+        notifications.remove(id)
+    }
+
+    companion object {
+        fun getInstance(): BannerNotificationService =
+            service()
+    }
+}