Refactor user tasks to support collective and user scopes

Before, there were periodic tasks run per collective and not user by
making sure that submitter + group are the same value. This is now
encoded in `UserTaskScope` so it is now obvious and errors can be
reduced when using this.

modules/backend/src/main/scala/docspell/backend/ops/OCollective.scala

@@ -18,8 +18,7 @@ import docspell.store.UpdateResult
 import docspell.store.queries.QCollective
 import docspell.store.queue.JobQueue
 import docspell.store.records._
-import docspell.store.usertask.UserTask
+import docspell.store.usertask.{UserTask, UserTaskScope, UserTaskStore}
-import docspell.store.usertask.UserTaskStore
 import docspell.store.{AddResult, Store}
 
 import com.github.eikek.calev._
@@ -169,7 +168,7 @@ object OCollective {
             None,
             LearnClassifierArgs(coll)
           )
-          _ <- uts.updateOneTask(AccountId(coll, LearnClassifierArgs.taskName), ut)
+          _ <- uts.updateOneTask(UserTaskScope(coll), ut)
           _ <- joex.notifyAllNodes
         } yield ()
 
@@ -185,7 +184,7 @@ object OCollective {
             None,
             EmptyTrashArgs(coll)
           )
-          _ <- uts.updateOneTask(AccountId(coll, coll), ut)
+          _ <- uts.updateOneTask(UserTaskScope(coll), ut)
           _ <- joex.notifyAllNodes
         } yield ()
 
@@ -199,7 +198,7 @@ object OCollective {
             CalEvent(WeekdayComponent.All, DateEvent.All, TimeEvent.All),
             None,
             LearnClassifierArgs(collective)
-          ).encode.toPeriodicTask(AccountId(collective, LearnClassifierArgs.taskName))
+          ).encode.toPeriodicTask(UserTaskScope(collective))
           job <- ut.toJob
           _   <- queue.insert(job)
           _   <- joex.notifyAllNodes
@@ -215,7 +214,7 @@ object OCollective {
             CalEvent(WeekdayComponent.All, DateEvent.All, TimeEvent.All),
             None,
             EmptyTrashArgs(collective)
-          ).encode.toPeriodicTask(AccountId(collective, collective))
+          ).encode.toPeriodicTask(UserTaskScope(collective))
           job <- ut.toJob
           _   <- queue.insert(job)
           _   <- joex.notifyAllNodes

modules/backend/src/main/scala/docspell/backend/ops/OUserTask.scala

@@ -21,47 +21,47 @@ trait OUserTask[F[_]] {
 
   /** Return the settings for all scan-mailbox tasks of the current user.
     */
-  def getScanMailbox(account: AccountId): Stream[F, UserTask[ScanMailboxArgs]]
+  def getScanMailbox(scope: UserTaskScope): Stream[F, UserTask[ScanMailboxArgs]]
 
   /** Find a scan-mailbox task by the given id. */
   def findScanMailbox(
       id: Ident,
-      account: AccountId
+      scope: UserTaskScope
   ): OptionT[F, UserTask[ScanMailboxArgs]]
 
   /** Updates the scan-mailbox tasks and notifies the joex nodes.
     */
   def submitScanMailbox(
-      account: AccountId,
+      scope: UserTaskScope,
       task: UserTask[ScanMailboxArgs]
   ): F[Unit]
 
   /** Return the settings for all the notify-due-items task of the
     * current user.
     */
-  def getNotifyDueItems(account: AccountId): Stream[F, UserTask[NotifyDueItemsArgs]]
+  def getNotifyDueItems(scope: UserTaskScope): Stream[F, UserTask[NotifyDueItemsArgs]]
 
   /** Find a notify-due-items task by the given id. */
   def findNotifyDueItems(
       id: Ident,
-      account: AccountId
+      scope: UserTaskScope
   ): OptionT[F, UserTask[NotifyDueItemsArgs]]
 
   /** Updates the notify-due-items tasks and notifies the joex nodes.
     */
   def submitNotifyDueItems(
-      account: AccountId,
+      scope: UserTaskScope,
       task: UserTask[NotifyDueItemsArgs]
   ): F[Unit]
 
   /** Removes a user task with the given id. */
-  def deleteTask(account: AccountId, id: Ident): F[Unit]
+  def deleteTask(scope: UserTaskScope, id: Ident): F[Unit]
 
   /** Discards the schedule and immediately submits the task to the job
     * executor's queue. It will not update the corresponding periodic
     * task.
     */
-  def executeNow[A](account: AccountId, task: UserTask[A])(implicit
+  def executeNow[A](scope: UserTaskScope, task: UserTask[A])(implicit
       E: Encoder[A]
   ): F[Unit]
 }
@@ -75,57 +75,59 @@ object OUserTask {
   ): Resource[F, OUserTask[F]] =
     Resource.pure[F, OUserTask[F]](new OUserTask[F] {
 
-      def executeNow[A](account: AccountId, task: UserTask[A])(implicit
+      def executeNow[A](scope: UserTaskScope, task: UserTask[A])(implicit
           E: Encoder[A]
       ): F[Unit] =
         for {
-          ptask <- task.encode.toPeriodicTask(account)
+          ptask <- task.encode.toPeriodicTask(scope)
           job   <- ptask.toJob
           _     <- queue.insert(job)
           _     <- joex.notifyAllNodes
         } yield ()
 
-      def getScanMailbox(account: AccountId): Stream[F, UserTask[ScanMailboxArgs]] =
+      def getScanMailbox(scope: UserTaskScope): Stream[F, UserTask[ScanMailboxArgs]] =
         store
-          .getByName[ScanMailboxArgs](account, ScanMailboxArgs.taskName)
+          .getByName[ScanMailboxArgs](scope, ScanMailboxArgs.taskName)
 
       def findScanMailbox(
           id: Ident,
-          account: AccountId
+          scope: UserTaskScope
       ): OptionT[F, UserTask[ScanMailboxArgs]] =
-        OptionT(getScanMailbox(account).find(_.id == id).compile.last)
+        OptionT(getScanMailbox(scope).find(_.id == id).compile.last)
 
-      def deleteTask(account: AccountId, id: Ident): F[Unit] =
+      def deleteTask(scope: UserTaskScope, id: Ident): F[Unit] =
         (for {
-          _ <- store.getByIdRaw(account, id)
+          _ <- store.getByIdRaw(scope, id)
-          _ <- OptionT.liftF(store.deleteTask(account, id))
+          _ <- OptionT.liftF(store.deleteTask(scope, id))
         } yield ()).getOrElse(())
 
       def submitScanMailbox(
-          account: AccountId,
+          scope: UserTaskScope,
           task: UserTask[ScanMailboxArgs]
       ): F[Unit] =
         for {
-          _ <- store.updateTask[ScanMailboxArgs](account, task)
+          _ <- store.updateTask[ScanMailboxArgs](scope, task)
           _ <- joex.notifyAllNodes
         } yield ()
 
-      def getNotifyDueItems(account: AccountId): Stream[F, UserTask[NotifyDueItemsArgs]] =
+      def getNotifyDueItems(
+          scope: UserTaskScope
+      ): Stream[F, UserTask[NotifyDueItemsArgs]] =
         store
-          .getByName[NotifyDueItemsArgs](account, NotifyDueItemsArgs.taskName)
+          .getByName[NotifyDueItemsArgs](scope, NotifyDueItemsArgs.taskName)
 
       def findNotifyDueItems(
           id: Ident,
-          account: AccountId
+          scope: UserTaskScope
       ): OptionT[F, UserTask[NotifyDueItemsArgs]] =
-        OptionT(getNotifyDueItems(account).find(_.id == id).compile.last)
+        OptionT(getNotifyDueItems(scope).find(_.id == id).compile.last)
 
       def submitNotifyDueItems(
-          account: AccountId,
+          scope: UserTaskScope,
           task: UserTask[NotifyDueItemsArgs]
       ): F[Unit] =
         for {
-          _ <- store.updateTask[NotifyDueItemsArgs](account, task)
+          _ <- store.updateTask[NotifyDueItemsArgs](scope, task)
           _ <- joex.notifyAllNodes
         } yield ()
     })

modules/common/src/main/scala/docspell/common/EmptyTrashArgs.scala

@@ -6,8 +6,9 @@
 
 package docspell.common
 
-import com.github.eikek.calev.CalEvent
 import docspell.common.syntax.all._
+
+import com.github.eikek.calev.CalEvent
 import io.circe._
 import io.circe.generic.semiauto._
 

modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala

@@ -7,9 +7,11 @@
 package docspell.joex
 
 import scala.concurrent.ExecutionContext
+
 import cats.effect._
 import cats.implicits._
 import fs2.concurrent.SignallingRef
+
 import docspell.analysis.TextAnalyser
 import docspell.backend.ops._
 import docspell.common._
@@ -33,6 +35,7 @@ import docspell.joexapi.client.JoexClient
 import docspell.store.Store
 import docspell.store.queue._
 import docspell.store.records.{REmptyTrashSetting, RJobLog}
+
 import emil.javamail._
 import org.http4s.blaze.client.BlazeClientBuilder
 import org.http4s.client.Client

modules/joex/src/main/scala/docspell/joex/emptytrash/EmptyTrashTask.scala

@@ -8,13 +8,15 @@ package docspell.joex.emptytrash
 
 import cats.effect._
 import cats.implicits._
-import com.github.eikek.calev.CalEvent
 import fs2.Stream
+
 import docspell.backend.ops.{OItem, OItemSearch}
 import docspell.common._
 import docspell.joex.scheduler._
 import docspell.store.records.{RItem, RPeriodicTask}
-import docspell.store.usertask.UserTask
+import docspell.store.usertask.{UserTask, UserTaskScope}
+
+import com.github.eikek.calev.CalEvent
 
 object EmptyTrashTask {
   type Args = EmptyTrashArgs
@@ -24,8 +26,10 @@ object EmptyTrashTask {
 
   private val pageSize = 20
 
-  def periodicTask[F[_]: Sync](collective: Ident, ce: CalEvent): F[RPeriodicTask] = {
+  def periodicTask[F[_]: Sync](collective: Ident, ce: CalEvent): F[RPeriodicTask] =
-    Ident.randomId[F].flatMap( id =>
+    Ident
+      .randomId[F]
+      .flatMap(id =>
         UserTask(
           id,
           EmptyTrashArgs.taskName,
@@ -33,9 +37,8 @@ object EmptyTrashTask {
           ce,
           None,
           EmptyTrashArgs(collective)
-    ).encode.toPeriodicTask(AccountId(collective, collective)))
+        ).encode.toPeriodicTask(UserTaskScope(collective))
-  }
+      )
-
 
   def apply[F[_]: Async](
       itemOps: OItem[F],

modules/joex/src/main/scala/docspell/joex/hk/HouseKeepingTask.scala

@@ -13,6 +13,7 @@ import docspell.common._
 import docspell.joex.Config
 import docspell.joex.scheduler.Task
 import docspell.store.records._
+import docspell.store.usertask.UserTaskScope
 
 import com.github.eikek.calev._
 
@@ -36,11 +37,10 @@ object HouseKeepingTask {
     RPeriodicTask
       .createJson(
         true,
+        UserTaskScope(DocspellSystem.taskGroup),
         taskName,
-        DocspellSystem.taskGroup,
         (),
         "Docspell house-keeping",
-        DocspellSystem.taskGroup,
         Priority.Low,
         ce,
         None

modules/restserver/src/main/scala/docspell/restserver/routes/CollectiveRoutes.scala

@@ -8,6 +8,7 @@ package docspell.restserver.routes
 
 import cats.effect._
 import cats.implicits._
+
 import docspell.backend.BackendApp
 import docspell.backend.auth.AuthToken
 import docspell.backend.ops.OCollective
@@ -15,6 +16,7 @@ import docspell.common.{EmptyTrashArgs, ListType}
 import docspell.restapi.model._
 import docspell.restserver.conv.Conversions
 import docspell.restserver.http4s._
+
 import com.github.eikek.calev.CalEvent
 import org.http4s.HttpRoutes
 import org.http4s.circe.CirceEntityDecoder._

modules/restserver/src/main/scala/docspell/restserver/routes/NotifyDueItemsRoutes.scala

@@ -38,7 +38,7 @@ object NotifyDueItemsRoutes {
     HttpRoutes.of {
       case GET -> Root / Ident(id) =>
         (for {
-          task <- ut.findNotifyDueItems(id, user.account)
+          task <- ut.findNotifyDueItems(id, UserTaskScope(user.account))
           res  <- OptionT.liftF(taskToSettings(user.account, backend, task))
           resp <- OptionT.liftF(Ok(res))
         } yield resp).getOrElseF(NotFound())
@@ -49,7 +49,7 @@ object NotifyDueItemsRoutes {
           newId <- Ident.randomId[F]
           task  <- makeTask(newId, getBaseUrl(cfg, req), user.account, data)
           res <-
-            ut.executeNow(user.account, task)
+            ut.executeNow(UserTaskScope(user.account), task)
               .attempt
               .map(Conversions.basicResult(_, "Submitted successfully."))
           resp <- Ok(res)
@@ -58,7 +58,7 @@ object NotifyDueItemsRoutes {
       case DELETE -> Root / Ident(id) =>
         for {
           res <-
-            ut.deleteTask(user.account, id)
+            ut.deleteTask(UserTaskScope(user.account), id)
               .attempt
               .map(Conversions.basicResult(_, "Deleted successfully"))
           resp <- Ok(res)
@@ -69,7 +69,7 @@ object NotifyDueItemsRoutes {
           for {
             task <- makeTask(data.id, getBaseUrl(cfg, req), user.account, data)
             res <-
-              ut.submitNotifyDueItems(user.account, task)
+              ut.submitNotifyDueItems(UserTaskScope(user.account), task)
                 .attempt
                 .map(Conversions.basicResult(_, "Saved successfully"))
             resp <- Ok(res)
@@ -87,14 +87,14 @@ object NotifyDueItemsRoutes {
           newId <- Ident.randomId[F]
           task  <- makeTask(newId, getBaseUrl(cfg, req), user.account, data)
           res <-
-            ut.submitNotifyDueItems(user.account, task)
+            ut.submitNotifyDueItems(UserTaskScope(user.account), task)
               .attempt
               .map(Conversions.basicResult(_, "Saved successfully."))
           resp <- Ok(res)
         } yield resp
 
       case GET -> Root =>
-        ut.getNotifyDueItems(user.account)
+        ut.getNotifyDueItems(UserTaskScope(user.account))
           .evalMap(task => taskToSettings(user.account, backend, task))
           .compile
           .toVector

modules/restserver/src/main/scala/docspell/restserver/routes/ScanMailboxRoutes.scala

@@ -35,7 +35,7 @@ object ScanMailboxRoutes {
     HttpRoutes.of {
       case GET -> Root / Ident(id) =>
         (for {
-          task <- ut.findScanMailbox(id, user.account)
+          task <- ut.findScanMailbox(id, UserTaskScope(user.account))
           res  <- OptionT.liftF(taskToSettings(user.account, backend, task))
           resp <- OptionT.liftF(Ok(res))
         } yield resp).getOrElseF(NotFound())
@@ -46,7 +46,7 @@ object ScanMailboxRoutes {
           newId <- Ident.randomId[F]
           task  <- makeTask(newId, user.account, data)
           res <-
-            ut.executeNow(user.account, task)
+            ut.executeNow(UserTaskScope(user.account), task)
               .attempt
               .map(Conversions.basicResult(_, "Submitted successfully."))
           resp <- Ok(res)
@@ -55,7 +55,7 @@ object ScanMailboxRoutes {
       case DELETE -> Root / Ident(id) =>
         for {
           res <-
-            ut.deleteTask(user.account, id)
+            ut.deleteTask(UserTaskScope(user.account), id)
               .attempt
               .map(Conversions.basicResult(_, "Deleted successfully."))
           resp <- Ok(res)
@@ -66,7 +66,7 @@ object ScanMailboxRoutes {
           for {
             task <- makeTask(data.id, user.account, data)
             res <-
-              ut.submitScanMailbox(user.account, task)
+              ut.submitScanMailbox(UserTaskScope(user.account), task)
                 .attempt
                 .map(Conversions.basicResult(_, "Saved successfully."))
             resp <- Ok(res)
@@ -84,14 +84,14 @@ object ScanMailboxRoutes {
           newId <- Ident.randomId[F]
           task  <- makeTask(newId, user.account, data)
           res <-
-            ut.submitScanMailbox(user.account, task)
+            ut.submitScanMailbox(UserTaskScope(user.account), task)
               .attempt
               .map(Conversions.basicResult(_, "Saved successfully."))
           resp <- Ok(res)
         } yield resp
 
       case GET -> Root =>
-        ut.getScanMailbox(user.account)
+        ut.getScanMailbox(UserTaskScope(user.account))
           .evalMap(task => taskToSettings(user.account, backend, task))
           .compile
           .toVector

modules/store/src/main/scala/docspell/store/queries/QUserTask.scala

@@ -12,7 +12,7 @@ import docspell.common._
 import docspell.store.qb.DSL._
 import docspell.store.qb._
 import docspell.store.records._
-import docspell.store.usertask.UserTask
+import docspell.store.usertask.{UserTask, UserTaskScope}
 
 import doobie._
 
@@ -54,15 +54,15 @@ object QUserTask {
       )
     ).query[RPeriodicTask].option.map(_.map(makeUserTask))
 
-  def insert(account: AccountId, task: UserTask[String]): ConnectionIO[Int] =
+  def insert(scope: UserTaskScope, task: UserTask[String]): ConnectionIO[Int] =
     for {
-      r <- task.toPeriodicTask[ConnectionIO](account)
+      r <- task.toPeriodicTask[ConnectionIO](scope)
       n <- RPeriodicTask.insert(r)
     } yield n
 
-  def update(account: AccountId, task: UserTask[String]): ConnectionIO[Int] =
+  def update(scope: UserTaskScope, task: UserTask[String]): ConnectionIO[Int] =
     for {
-      r <- task.toPeriodicTask[ConnectionIO](account)
+      r <- task.toPeriodicTask[ConnectionIO](scope)
       n <- RPeriodicTask.update(r)
     } yield n
 

modules/store/src/main/scala/docspell/store/records/RPeriodicTask.scala

@@ -13,6 +13,7 @@ import cats.implicits._
 import docspell.common._
 import docspell.store.qb.DSL._
 import docspell.store.qb._
+import docspell.store.usertask.UserTaskScope
 
 import com.github.eikek.calev.CalEvent
 import doobie._
@@ -67,11 +68,10 @@ object RPeriodicTask {
 
   def create[F[_]: Sync](
       enabled: Boolean,
+      scope: UserTaskScope,
       task: Ident,
-      group: Ident,
       args: String,
       subject: String,
-      submitter: Ident,
       priority: Priority,
       timer: CalEvent,
       summary: Option[String]
@@ -86,10 +86,10 @@ object RPeriodicTask {
               id,
               enabled,
               task,
-              group,
+              scope.collective,
               args,
               subject,
-              submitter,
+              scope.fold(_.user, identity),
               priority,
               None,
               None,
@@ -107,22 +107,20 @@ object RPeriodicTask {
 
   def createJson[F[_]: Sync, A](
       enabled: Boolean,
+      scope: UserTaskScope,
       task: Ident,
-      group: Ident,
       args: A,
       subject: String,
-      submitter: Ident,
       priority: Priority,
       timer: CalEvent,
       summary: Option[String]
   )(implicit E: Encoder[A]): F[RPeriodicTask] =
     create[F](
       enabled,
+      scope,
       task,
-      group,
       E(args).noSpaces,
       subject,
-      submitter,
       priority,
       timer,
       summary

modules/store/src/main/scala/docspell/store/usertask/UserTask.scala

@@ -43,16 +43,15 @@ object UserTask {
         .map(a => ut.copy(args = a))
 
     def toPeriodicTask[F[_]: Sync](
-        account: AccountId
+        scope: UserTaskScope
     ): F[RPeriodicTask] =
       RPeriodicTask
         .create[F](
           ut.enabled,
+          scope,
           ut.name,
-          account.collective,
           ut.args,
-          s"${account.user.id}: ${ut.name.id}",
+          s"${scope.fold(_.user.id, _.id)}: ${ut.name.id}",
-          account.user,
           Priority.Low,
           ut.timer,
           ut.summary

modules/store/src/main/scala/docspell/store/usertask/UserTaskScope.scala

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2020 Docspell Contributors
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package docspell.store.usertask
+
+import docspell.common._
+
+sealed trait UserTaskScope { self: Product =>
+
+  def name: String =
+    productPrefix.toLowerCase
+
+  def collective: Ident
+
+  def fold[A](fa: AccountId => A, fb: Ident => A): A
+
+  /** Maps to the account or uses the collective for both parts if the
+    * scope is collective wide.
+    */
+  private[usertask] def toAccountId: AccountId =
+    AccountId(collective, fold(_.user, identity))
+}
+
+object UserTaskScope {
+
+  final case class Account(account: AccountId) extends UserTaskScope {
+    val collective = account.collective
+
+    def fold[A](fa: AccountId => A, fb: Ident => A): A =
+      fa(account)
+  }
+
+  final case class Collective(collective: Ident) extends UserTaskScope {
+    def fold[A](fa: AccountId => A, fb: Ident => A): A =
+      fb(collective)
+  }
+
+  def collective(id: Ident): UserTaskScope =
+    Collective(id)
+
+  def account(accountId: AccountId): UserTaskScope =
+    Account(accountId)
+
+  def apply(accountId: AccountId): UserTaskScope =
+    UserTaskScope.account(accountId)
+
+  def apply(collective: Ident): UserTaskScope =
+    UserTaskScope.collective(collective)
+}

modules/store/src/main/scala/docspell/store/usertask/UserTaskStore.scala

@@ -22,13 +22,15 @@ import io.circe._
   * once.
   *
   * This class defines methods at a higher level, dealing with
-  * `UserTask` and `AccountId` instead of directly using
+  * `UserTask` and `UserTaskScope` instead of directly using
   * `RPeriodicTask`. A user task is associated to a specific user (not
-  * just the collective).
+  * just the collective). But it can be associated to the whole
+  * collective by using the collective as submitter, too. This is
+  * abstracted in `UserTaskScope`.
   *
   * implNote: The mapping is as follows: The collective is the task
   * group. The submitter property contains the username. Once a task
-  * is saved to the database, it can only be refernced uniquely by its
+  * is saved to the database, it can only be referenced uniquely by its
   * id. A user may submit multiple same tasks (with different
   * properties).
   */
@@ -36,22 +38,22 @@ trait UserTaskStore[F[_]] {
 
   /** Return all tasks of the given user.
     */
-  def getAll(account: AccountId): Stream[F, UserTask[String]]
+  def getAll(scope: UserTaskScope): Stream[F, UserTask[String]]
 
   /** Return all tasks of the given name and user. The task's arguments
     * are returned as stored in the database.
     */
-  def getByNameRaw(account: AccountId, name: Ident): Stream[F, UserTask[String]]
+  def getByNameRaw(scope: UserTaskScope, name: Ident): Stream[F, UserTask[String]]
 
   /** Return all tasks of the given name and user. The task's arguments
     * are decoded using the given json decoder.
     */
-  def getByName[A](account: AccountId, name: Ident)(implicit
+  def getByName[A](scope: UserTaskScope, name: Ident)(implicit
       D: Decoder[A]
   ): Stream[F, UserTask[A]]
 
   /** Return a user-task with the given id. */
-  def getByIdRaw(account: AccountId, id: Ident): OptionT[F, UserTask[String]]
+  def getByIdRaw(scope: UserTaskScope, id: Ident): OptionT[F, UserTask[String]]
 
   /** Updates or inserts the given task.
     *
@@ -59,23 +61,23 @@ trait UserTaskStore[F[_]] {
     * exists, a new one is created. Otherwise the existing task is
     * updated.
     */
-  def updateTask[A](account: AccountId, ut: UserTask[A])(implicit E: Encoder[A]): F[Int]
+  def updateTask[A](scope: UserTaskScope, ut: UserTask[A])(implicit E: Encoder[A]): F[Int]
 
   /** Delete the task with the given id of the given user.
     */
-  def deleteTask(account: AccountId, id: Ident): F[Int]
+  def deleteTask(scope: UserTaskScope, id: Ident): F[Int]
 
   /** Return the task of the given user and name. If multiple exists, an
     * error is returned. The task's arguments are returned as stored
     * in the database.
     */
-  def getOneByNameRaw(account: AccountId, name: Ident): OptionT[F, UserTask[String]]
+  def getOneByNameRaw(scope: UserTaskScope, name: Ident): OptionT[F, UserTask[String]]
 
   /** Return the task of the given user and name. If multiple exists, an
     * error is returned. The task's arguments are decoded using the
     * given json decoder.
     */
-  def getOneByName[A](account: AccountId, name: Ident)(implicit
+  def getOneByName[A](scope: UserTaskScope, name: Ident)(implicit
       D: Decoder[A]
   ): OptionT[F, UserTask[A]]
 
@@ -90,13 +92,13 @@ trait UserTaskStore[F[_]] {
     * the user `account`, they will all be removed and the given task
     * inserted!
     */
-  def updateOneTask[A](account: AccountId, ut: UserTask[A])(implicit
+  def updateOneTask[A](scope: UserTaskScope, ut: UserTask[A])(implicit
       E: Encoder[A]
   ): F[UserTask[String]]
 
   /** Delete all tasks of the given user that have name `name'.
     */
-  def deleteAll(account: AccountId, name: Ident): F[Int]
+  def deleteAll(scope: UserTaskScope, name: Ident): F[Int]
 }
 
 object UserTaskStore {
@@ -104,47 +106,47 @@ object UserTaskStore {
   def apply[F[_]: Async](store: Store[F]): Resource[F, UserTaskStore[F]] =
     Resource.pure[F, UserTaskStore[F]](new UserTaskStore[F] {
 
-      def getAll(account: AccountId): Stream[F, UserTask[String]] =
+      def getAll(scope: UserTaskScope): Stream[F, UserTask[String]] =
-        store.transact(QUserTask.findAll(account))
+        store.transact(QUserTask.findAll(scope.toAccountId))
 
-      def getByNameRaw(account: AccountId, name: Ident): Stream[F, UserTask[String]] =
+      def getByNameRaw(scope: UserTaskScope, name: Ident): Stream[F, UserTask[String]] =
-        store.transact(QUserTask.findByName(account, name))
+        store.transact(QUserTask.findByName(scope.toAccountId, name))
 
-      def getByIdRaw(account: AccountId, id: Ident): OptionT[F, UserTask[String]] =
+      def getByIdRaw(scope: UserTaskScope, id: Ident): OptionT[F, UserTask[String]] =
-        OptionT(store.transact(QUserTask.findById(account, id)))
+        OptionT(store.transact(QUserTask.findById(scope.toAccountId, id)))
 
-      def getByName[A](account: AccountId, name: Ident)(implicit
+      def getByName[A](scope: UserTaskScope, name: Ident)(implicit
           D: Decoder[A]
       ): Stream[F, UserTask[A]] =
-        getByNameRaw(account, name).flatMap(_.decode match {
+        getByNameRaw(scope, name).flatMap(_.decode match {
           case Right(ua) => Stream.emit(ua)
           case Left(err) => Stream.raiseError[F](new Exception(err))
         })
 
-      def updateTask[A](account: AccountId, ut: UserTask[A])(implicit
+      def updateTask[A](scope: UserTaskScope, ut: UserTask[A])(implicit
           E: Encoder[A]
       ): F[Int] = {
         val exists = QUserTask.exists(ut.id)
-        val insert = QUserTask.insert(account, ut.encode)
+        val insert = QUserTask.insert(scope, ut.encode)
         store.add(insert, exists).flatMap {
           case AddResult.Success =>
             1.pure[F]
           case AddResult.EntityExists(_) =>
-            store.transact(QUserTask.update(account, ut.encode))
+            store.transact(QUserTask.update(scope, ut.encode))
           case AddResult.Failure(ex) =>
             Async[F].raiseError(ex)
         }
       }
 
-      def deleteTask(account: AccountId, id: Ident): F[Int] =
+      def deleteTask(scope: UserTaskScope, id: Ident): F[Int] =
-        store.transact(QUserTask.delete(account, id))
+        store.transact(QUserTask.delete(scope.toAccountId, id))
 
       def getOneByNameRaw(
-          account: AccountId,
+          scope: UserTaskScope,
           name: Ident
       ): OptionT[F, UserTask[String]] =
         OptionT(
-          getByNameRaw(account, name)
+          getByNameRaw(scope, name)
             .take(2)
             .compile
             .toList
@@ -155,32 +157,34 @@ object UserTaskStore {
             }
         )
 
-      def getOneByName[A](account: AccountId, name: Ident)(implicit
+      def getOneByName[A](scope: UserTaskScope, name: Ident)(implicit
           D: Decoder[A]
       ): OptionT[F, UserTask[A]] =
-        getOneByNameRaw(account, name)
+        getOneByNameRaw(scope, name)
           .semiflatMap(_.decode match {
             case Right(ua) => ua.pure[F]
             case Left(err) => Async[F].raiseError(new Exception(err))
           })
 
-      def updateOneTask[A](account: AccountId, ut: UserTask[A])(implicit
+      def updateOneTask[A](scope: UserTaskScope, ut: UserTask[A])(implicit
           E: Encoder[A]
       ): F[UserTask[String]] =
-        getByNameRaw(account, ut.name).compile.toList.flatMap {
+        getByNameRaw(scope, ut.name).compile.toList.flatMap {
           case a :: rest =>
             val task = ut.copy(id = a.id).encode
             for {
-              _ <- store.transact(QUserTask.update(account, task))
+              _ <- store.transact(QUserTask.update(scope, task))
-              _ <- store.transact(rest.traverse(t => QUserTask.delete(account, t.id)))
+              _ <- store.transact(
+                rest.traverse(t => QUserTask.delete(scope.toAccountId, t.id))
+              )
             } yield task
           case Nil =>
             val task = ut.encode
-            store.transact(QUserTask.insert(account, task)).map(_ => task)
+            store.transact(QUserTask.insert(scope, task)).map(_ => task)
         }
 
-      def deleteAll(account: AccountId, name: Ident): F[Int] =
+      def deleteAll(scope: UserTaskScope, name: Ident): F[Int] =
-        store.transact(QUserTask.deleteAll(account, name))
+        store.transact(QUserTask.deleteAll(scope.toAccountId, name))
     })
 
 }