Add a periodic DB vacuuming task

libraries/workmanager/api/src/main/kotlin/io/element/android/libraries/workmanager/api/WorkManagerScheduler.kt

@@ -12,16 +12,19 @@ import io.element.android.libraries.matrix.api.core.SessionId
 
 interface WorkManagerScheduler {
     fun submit(workManagerRequest: WorkManagerRequest)
+    fun hasPendingWork(sessionId: SessionId, requestType: WorkManagerRequestType): Boolean
     fun cancel(sessionId: SessionId)
 }
 
 fun workManagerTag(sessionId: SessionId, requestType: WorkManagerRequestType): String {
     val prefix = when (requestType) {
         WorkManagerRequestType.NOTIFICATION_SYNC -> "notifications"
+        WorkManagerRequestType.DB_VACUUM -> "db_vacuum"
     }
     return "$prefix-$sessionId"
 }
 
 enum class WorkManagerRequestType {
     NOTIFICATION_SYNC,
+    DB_VACUUM,
 }

libraries/workmanager/impl/src/main/kotlin/io/element/android/libraries/workmanager/impl/DefaultWorkManagerScheduler.kt

@@ -11,6 +11,7 @@ package io.element.android.libraries.workmanager.impl
 import androidx.work.WorkManager
 import dev.zacsweers.metro.AppScope
 import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.core.bool.orFalse
 import dev.zacsweers.metro.SingleIn
 import io.element.android.libraries.matrix.api.core.SessionId
 import io.element.android.libraries.sessionstorage.api.observer.SessionListener
@@ -51,6 +52,10 @@ class DefaultWorkManagerScheduler(
         )
     }
 
+    override fun hasPendingWork(sessionId: SessionId, requestType: WorkManagerRequestType): Boolean {
+        return workManager.getWorkInfosByTag(workManagerTag(sessionId, requestType)).get()?.isNotEmpty().orFalse()
+    }
+
     override fun cancel(sessionId: SessionId) {
         Timber.d("Cancelling work for sessionId: $sessionId")
         for (requestType in WorkManagerRequestType.entries) {

libraries/workmanager/test/src/main/kotlin/io/element/android/libraries/workmanager/test/FakeWorkManagerScheduler.kt

@@ -10,17 +10,23 @@ package io.element.android.libraries.workmanager.test
 
 import io.element.android.libraries.matrix.api.core.SessionId
 import io.element.android.libraries.workmanager.api.WorkManagerRequest
+import io.element.android.libraries.workmanager.api.WorkManagerRequestType
 import io.element.android.libraries.workmanager.api.WorkManagerScheduler
 import io.element.android.tests.testutils.lambda.lambdaError
 
 class FakeWorkManagerScheduler(
     private val submitLambda: (WorkManagerRequest) -> Unit = { lambdaError() },
+    private val hasPendingWorkLambda: (SessionId, WorkManagerRequestType) -> Boolean = { _, _ -> false },
     private val cancelLambda: (SessionId) -> Unit = { lambdaError() },
 ) : WorkManagerScheduler {
     override fun submit(workManagerRequest: WorkManagerRequest) {
         submitLambda(workManagerRequest)
     }
 
+    override fun hasPendingWork(sessionId: SessionId, requestType: WorkManagerRequestType): Boolean {
+        return hasPendingWorkLambda(sessionId, requestType)
+    }
+
     override fun cancel(sessionId: SessionId) {
         cancelLambda(sessionId)
     }