S2S: Implement projectOfferDepF and repoOfferDepF

src/Vervis/Federation.hs

@@ -297,7 +297,7 @@ handleProjectInbox
     -> ActivityAuthentication
     -> ActivityBody
     -> ExceptT Text Handler (Text, Maybe (ExceptT Text Worker Text))
-handleProjectInbox shrRecip prjRecip now auth body = (,Nothing) <$> do
+handleProjectInbox shrRecip prjRecip now auth body = do
     remoteAuthor <-
         case auth of
             ActivityAuthLocal local -> throwE $ errorLocalForwarded local
@@ -306,20 +306,22 @@ handleProjectInbox shrRecip prjRecip now auth body = (,Nothing) <$> do
         CreateActivity (Create obj mtarget) ->
             case obj of
                 CreateNote note ->
-                    projectCreateNoteF now shrRecip prjRecip remoteAuthor body note
+                    (,Nothing) <$> projectCreateNoteF now shrRecip prjRecip remoteAuthor body note
                 CreateTicket ticket ->
-                    projectCreateTicketF now shrRecip prjRecip remoteAuthor body ticket mtarget
+                    (,Nothing) <$> projectCreateTicketF now shrRecip prjRecip remoteAuthor body ticket mtarget
                 _ -> error "Unsupported create object type for projects"
         FollowActivity follow ->
-            projectFollowF shrRecip prjRecip now remoteAuthor body follow
+            (,Nothing) <$> projectFollowF shrRecip prjRecip now remoteAuthor body follow
         OfferActivity (Offer obj target) ->
             case obj of
                 OfferTicket ticket ->
-                    projectOfferTicketF now shrRecip prjRecip remoteAuthor body ticket target
+                    (,Nothing) <$> projectOfferTicketF now shrRecip prjRecip remoteAuthor body ticket target
-                _ -> return "Unsupported offer object type for projects"
+                OfferDep dep ->
+                    projectOfferDepF now shrRecip prjRecip remoteAuthor body dep target
+                _ -> return ("Unsupported offer object type for projects", Nothing)
         UndoActivity undo ->
-            projectUndoF shrRecip prjRecip now remoteAuthor body undo
+            (,Nothing) <$> projectUndoF shrRecip prjRecip now remoteAuthor body undo
-        _ -> return "Unsupported activity type for projects"
+        _ -> return ("Unsupported activity type for projects", Nothing)
     where
     errorLocalForwarded (ActivityAuthLocalPerson pid) =
         "Project inbox got local forwarded activity by pid#" <>
@@ -338,7 +340,7 @@ handleRepoInbox
     -> ActivityAuthentication
     -> ActivityBody
     -> ExceptT Text Handler (Text, Maybe (ExceptT Text Worker Text))
-handleRepoInbox shrRecip rpRecip now auth body = (,Nothing) <$> do
+handleRepoInbox shrRecip rpRecip now auth body = do
     remoteAuthor <-
         case auth of
             ActivityAuthLocal local -> throwE $ errorLocalForwarded local
@@ -347,13 +349,18 @@ handleRepoInbox shrRecip rpRecip now auth body = (,Nothing) <$> do
         CreateActivity (Create obj mtarget) ->
             case obj of
                 CreateNote note ->
-                    repoCreateNoteF now shrRecip rpRecip remoteAuthor body note
+                    (,Nothing) <$> repoCreateNoteF now shrRecip rpRecip remoteAuthor body note
                 _ -> error "Unsupported create object type for repos"
         FollowActivity follow ->
-            repoFollowF shrRecip rpRecip now remoteAuthor body follow
+            (,Nothing) <$> repoFollowF shrRecip rpRecip now remoteAuthor body follow
+        OfferActivity (Offer obj target) ->
+            case obj of
+                OfferDep dep ->
+                    repoOfferDepF now shrRecip rpRecip remoteAuthor body dep target
+                _ -> return ("Unsupported offer object type for repos", Nothing)
         UndoActivity undo->
-            repoUndoF shrRecip rpRecip now remoteAuthor body undo
+            (,Nothing) <$> repoUndoF shrRecip rpRecip now remoteAuthor body undo
-        _ -> return "Unsupported activity type for repos"
+        _ -> return ("Unsupported activity type for repos", Nothing)
     where
     errorLocalForwarded (ActivityAuthLocalPerson pid) =
         "Repo inbox got local forwarded activity by pid#" <>

src/Vervis/Federation/Ticket.hs

@@ -21,6 +21,8 @@ module Vervis.Federation.Ticket
     , projectCreateTicketF
 
     , sharerOfferDepF
+    , projectOfferDepF
+    , repoOfferDepF
     )
 where
 
@@ -30,6 +32,7 @@ import Control.Monad.Logger.CallStack
 import Control.Monad.Trans.Class
 import Control.Monad.Trans.Except
 import Control.Monad.Trans.Maybe
+import Control.Monad.Trans.Reader
 import Data.Aeson
 import Data.Bifunctor
 import Data.Bitraversable
@@ -43,6 +46,7 @@ import Data.Time.Calendar
 import Data.Time.Clock
 import Data.Traversable
 import Database.Persist
+import Database.Persist.Sql
 import Text.Blaze.Html (preEscapedToHtml)
 import Text.Blaze.Html.Renderer.Text
 import Yesod.Core hiding (logError, logWarn, logInfo, logDebug)
@@ -815,35 +819,8 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
                         throwE "Project 'id' differs from the URI we fetched"
                     return
                         (uTracker, objUriAuthority uProject, objFollowers obj, objTeam obj)
-                (childId, childCtx, childAuthor) <-
+                childDetail <- getWorkItemDetail "Child" child
-                    case child of
+                return (talid, patch, parentLtid, parentCtx', childDetail)
-                        Left wi -> runSiteDBExcept $ do
-                            (ltid, ctx, author) <- getWorkItem "Child" wi
-                            return (Left (wi, ltid), second mkuri ctx, second mkuri author)
-                        Right u -> do
-                            Doc hAuthor t <- withExceptT T.pack $ AP.fetchAP manager $ Left u
-                            (hTicket, tl) <- fromMaybeE (AP.ticketLocal t) "Child ticket no 'id'"
-                            unless (ObjURI hAuthor (AP.ticketId tl) == u) $
-                                throwE "Ticket 'id' differs from the URI we fetched"
-                            uCtx <- fromMaybeE (AP.ticketContext t) "Ticket without 'context'"
-                            ctx <- parseTicketContext uCtx
-                            author <- parseTicketAuthor $ ObjURI hTicket (AP.ticketAttributedTo t)
-                            return (Right (u, AP.ticketParticipants tl), ctx, author)
-                childCtx' <- bifor childCtx pure $ \ u -> do
-                    obj <- withExceptT T.pack $ AP.fetchAP manager $ Left u
-                    unless (objId obj == u) $
-                        throwE "Project 'id' differs from the URI we fetched"
-                    u' <-
-                        case (objContext obj, objInbox obj) of
-                            (Just c, Nothing) -> do
-                                hl <- hostIsLocal $ objUriAuthority c
-                                when hl $ throwE "Child remote context has a local context"
-                                pure c
-                            (Nothing, Just _) -> pure u
-                            _ -> throwE "Umm context-inbox thing"
-                    return
-                        (u', objUriAuthority u, objFollowers obj, objTeam obj)
-                return (talid, patch, parentLtid, parentCtx', childId, childCtx', childAuthor)
         mhttp <- runSiteDBExcept $ do
             mractid <- lift $ insertToInbox' now author body (personInbox personRecip) luOffer True
             for mractid $ \ (ractid, ibiid) -> do
@@ -861,9 +838,9 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
                                 localRecipSieve'
                                     sieve False False localRecips
                     (sig,) <$> deliverRemoteDB_S (actbBL body) ractid (personIdent personRecip) sig remoteRecips
-                mremotesHttpAccept <- lift $ for relevantParent $ \ ticketData@(_, _, parentLtid, _, childId, _, _) -> do
+                mremotesHttpAccept <- lift $ for relevantParent $ \ ticketData@(_, _, parentLtid, _, childDetail) -> do
                     obiidAccept <- insertEmptyOutboxItem (personOutbox personRecip) now
-                    tdid <- insertDep ractid parentLtid childId obiidAccept
+                    tdid <- insertDep now author ractid parentLtid (widIdent childDetail) obiidAccept
                     (docAccept, localRecipsAccept, remoteRecipsAccept, fwdHostsAccept) <-
                         insertAccept luOffer obiidAccept tdid ticketData
                     knownRemoteRecipsAccept <-
@@ -894,19 +871,153 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
     ticketRelevance shr (Left (WorkItemSharerTicket shr' talid patch))
         | shr == shr' = Just (talid, patch)
     ticketRelevance _ _ = Nothing
-    {-
+    insertDepOffer _          (Left _)  _     = return ()
-    getWorkItem
+    insertDepOffer ibiidOffer (Right _) child =
+        for_ (ticketRelevance shrRecip child) $ \ (talid, patch) -> do
+            ltid <-
+                if patch
+                    then do
+                        (_, Entity ltid _, _, _, _) <- do
+                            mticket <- lift $ getSharerPatch shrRecip talid
+                            fromMaybeE mticket $ "Child" <> ": No such sharer-patch"
+                        return ltid
+                    else do
+                        (_, Entity ltid _, _, _) <- do
+                            mticket <- lift $ getSharerTicket shrRecip talid
+                            fromMaybeE mticket $ "Child" <> ": No such sharer-ticket"
+                        return ltid
+            lift $ insert_ TicketDependencyOffer
+                { ticketDependencyOfferOffer = ibiidOffer
+                , ticketDependencyOfferChild = ltid
+                }
+    askRelevantFollowers = do
+        hashTALID <- getEncodeKeyHashid
+        return $ \ shr wi -> followers hashTALID <$> ticketRelevance shr wi
+        where
+        followers hashTALID (talid, patch) =
+            let coll =
+                    if patch
+                        then LocalPersonCollectionSharerPatchFollowers
+                        else LocalPersonCollectionSharerTicketFollowers
+            in  coll shrRecip (hashTALID talid)
+    insertAccept luOffer obiidAccept tdid (talid, patch, _, parentCtx, WorkItemDetail childId childCtx childAuthor) = do
+        encodeRouteLocal <- getEncodeRouteLocal
+        encodeRouteHome <- getEncodeRouteHome
+        followers <- askFollowers
+        workItemFollowers <- askWorkItemFollowers
+        hLocal <- asksSite siteInstanceHost
+        obikhidAccept <- encodeKeyHashid obiidAccept
+        tdkhid <- encodeKeyHashid tdid
+        ra <- getJust $ remoteAuthorId author
+        let ObjURI hAuthor luAuthor = remoteAuthorURI author
+
+            audAuthor =
+                AudRemote hAuthor [luAuthor] (maybeToList $ remoteActorFollowers ra)
+            audParentContext = contextAudience parentCtx
+            audChildContext = contextAudience childCtx
+            audParent = AudLocal [LocalActorSharer shrRecip] [followers talid patch]
+            audChildAuthor =
+                case childAuthor of
+                    Left shr -> AudLocal [LocalActorSharer shr] []
+                    Right (ObjURI h lu) -> AudRemote h [lu] []
+            audChildFollowers =
+                case childId of
+                    Left (wi, _ltid) -> AudLocal [] [workItemFollowers wi]
+                    Right (ObjURI h _, luFollowers) -> AudRemote h [] [luFollowers]
+
+            (recipientSet, remoteActors, fwdHosts, audLocal, audRemote) =
+                collectAudience $
+                    audAuthor :
+                    audParent :
+                    audChildAuthor :
+                    audChildFollowers :
+                    audParentContext ++ audChildContext
+
+            recips = map encodeRouteHome audLocal ++ audRemote
+            doc = Doc hLocal Activity
+                { activityId       =
+                    Just $ encodeRouteLocal $
+                        SharerOutboxItemR shrRecip obikhidAccept
+                , activityActor    = encodeRouteLocal $ SharerR shrRecip
+                , activitySummary  = Nothing
+                , activityAudience = Audience recips [] [] [] [] []
+                , activitySpecific = AcceptActivity Accept
+                    { acceptObject = ObjURI hAuthor luOffer
+                    , acceptResult =
+                        Just $ encodeRouteLocal $ TicketDepR tdkhid
+                    }
+                }
+        update obiidAccept [OutboxItemActivity =. persistJSONObjectFromDoc doc]
+        return (doc, recipientSet, remoteActors, fwdHosts)
+        where
+        askFollowers = do
+            hashTALID <- getEncodeKeyHashid
+            return $ \ talid patch ->
+                let coll =
+                        if patch
+                            then LocalPersonCollectionSharerPatchFollowers
+                            else LocalPersonCollectionSharerTicketFollowers
+                in  coll shrRecip (hashTALID talid)
+
+data WorkItemDetail = WorkItemDetail
+    { widIdent   :: Either (WorkItem, LocalTicketId) (FedURI, LocalURI)
+    , widContext :: Either (Either (ShrIdent, PrjIdent) (ShrIdent, RpIdent)) (FedURI, Host, Maybe LocalURI, Maybe LocalURI)
+    , widAuthor  :: Either ShrIdent FedURI
+    }
+
+getAuthor
     :: MonadIO m
-        => Text
+    => Either
-        -> WorkItem
+        (Entity TicketAuthorLocal, Entity TicketUnderProject)
-        -> ExceptT Text (ReaderT SqlBaclend m)
+        (Entity TicketAuthorRemote)
-            ( LocalTicketId
+    -> ReaderT SqlBackend m (Either ShrIdent (Instance, RemoteObject))
-            , Either
+getAuthor =
-                (Either (ShrIdent, PrjIdent) (ShrIdent, RpIdent))
+    bitraverse
-                (Instance, RemoteObject)
+        (\ (Entity _ tal, _) -> do
-            , Either ShrIdent (Instance, RemoteObject)
+            p <- getJust $ ticketAuthorLocalAuthor tal
+            sharerIdent <$> getJust (personIdent p)
         )
-    -}
+        (\ (Entity _ tar) -> do
+            ra <- getJust $ ticketAuthorRemoteAuthor tar
+            ro <- getJust $ remoteActorIdent ra
+            i <- getJust $ remoteObjectInstance ro
+            return (i, ro)
+        )
+
+getWorkItemDetail
+    :: Text -> Either WorkItem FedURI -> ExceptT Text Worker WorkItemDetail
+getWorkItemDetail name v = do
+    manager <- asksSite appHttpManager
+    (childId, childCtx, childAuthor) <-
+        case v of
+            Left wi -> runSiteDBExcept $ do
+                (ltid, ctx, author) <- getWorkItem name wi
+                return (Left (wi, ltid), second mkuri ctx, second mkuri author)
+            Right u -> do
+                Doc hAuthor t <- withExceptT T.pack $ AP.fetchAP manager $ Left u
+                (hTicket, tl) <- fromMaybeE (AP.ticketLocal t) $ name <> ": no 'id'"
+                unless (ObjURI hAuthor (AP.ticketId tl) == u) $
+                    throwE "Ticket 'id' differs from the URI we fetched"
+                uCtx <- fromMaybeE (AP.ticketContext t) "Ticket without 'context'"
+                ctx <- parseTicketContext uCtx
+                author <- parseTicketAuthor $ ObjURI hTicket (AP.ticketAttributedTo t)
+                return (Right (u, AP.ticketParticipants tl), ctx, author)
+    childCtx' <- bifor childCtx pure $ \ u -> do
+        obj <- withExceptT T.pack $ AP.fetchAP manager $ Left u
+        unless (objId obj == u) $
+            throwE "Project 'id' differs from the URI we fetched"
+        u' <-
+            case (objContext obj, objInbox obj) of
+                (Just c, Nothing) -> do
+                    hl <- hostIsLocal $ objUriAuthority c
+                    when hl $ throwE $ name <> ": remote context has a local context"
+                    pure c
+                (Nothing, Just _) -> pure u
+                _ -> throwE "Umm context-inbox thing"
+        return
+            (u', objUriAuthority u, objFollowers obj, objTeam obj)
+    return $ WorkItemDetail childId childCtx' childAuthor
+    where
     getWorkItem name (WorkItemSharerTicket shr talid False) = do
         (_, Entity ltid _, _, context) <- do
             mticket <- lift $ getSharerTicket shr talid
@@ -961,41 +1072,14 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
         mticket <- lift $ getProjectTicket shr prj ltid
         (Entity _ s, Entity _ j, _, _, _, _, author) <-
             fromMaybeE mticket $ name <> ": No such project-ticket"
-        author' <-
+        author' <- lift $ getAuthor author
-            lift $
-            bitraverse
-                (\ (Entity _ tal, _) -> do
-                    p <- getJust $ ticketAuthorLocalAuthor tal
-                    sharerIdent <$> getJust (personIdent p)
-                )
-                (\ (Entity _ tar) -> do
-                    ra <- getJust $ ticketAuthorRemoteAuthor tar
-                    ro <- getJust $ remoteActorIdent ra
-                    i <- getJust $ remoteObjectInstance ro
-                    return (i, ro)
-                )
-                author
         return (ltid, Left $ Left (sharerIdent s, projectIdent j), author')
     getWorkItem name (WorkItemRepoPatch shr rp ltid) = do
         mticket <- lift $ getRepoPatch shr rp ltid
         (Entity _ s, Entity _ r, _, _, _, _, author, _) <-
             fromMaybeE mticket $ name <> ": No such repo-patch"
-        author' <-
+        author' <- lift $ getAuthor author
-            lift $
-            bitraverse
-                (\ (Entity _ tal, _) -> do
-                    p <- getJust $ ticketAuthorLocalAuthor tal
-                    sharerIdent <$> getJust (personIdent p)
-                )
-                (\ (Entity _ tar) -> do
-                    ra <- getJust $ ticketAuthorRemoteAuthor tar
-                    ro <- getJust $ remoteActorIdent ra
-                    i <- getJust $ remoteObjectInstance ro
-                    return (i, ro)
-                )
-                author
         return (ltid, Left $ Right (sharerIdent s, repoIdent r), author')
-    mkuri (i, ro) = ObjURI (instanceHost i) (remoteObjectIdent ro)
     parseTicketContext u@(ObjURI h lu) = do
         hl <- hostIsLocal h
         if hl
@@ -1015,36 +1099,19 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
                         SharerR shr -> return shr
                         _ -> throwE "Not a ticket author route"
             else return $ Right u
-    insertDepOffer _          (Left _)  _     = return ()
+
-    insertDepOffer ibiidOffer (Right _) child =
+mkuri (i, ro) = ObjURI (instanceHost i) (remoteObjectIdent ro)
-        for_ (ticketRelevance shrRecip child) $ \ (talid, patch) -> do
+
-            ltid <-
+insertDep
-                if patch
+    :: MonadIO m
-                    then do
+    => UTCTime
-                        (_, Entity ltid _, _, _, _) <- do
+    -> RemoteAuthor
-                            mticket <- lift $ getSharerPatch shrRecip talid
+    -> RemoteActivityId
-                            fromMaybeE mticket $ "Child" <> ": No such sharer-patch"
+    -> LocalTicketId
-                        return ltid
+    -> Either (WorkItem, LocalTicketId) (FedURI, LocalURI)
-                    else do
+    -> OutboxItemId
-                        (_, Entity ltid _, _, _) <- do
+    -> ReaderT SqlBackend m LocalTicketDependencyId
-                            mticket <- lift $ getSharerTicket shrRecip talid
+insertDep now author ractidOffer ltidParent child obiidAccept = do
-                            fromMaybeE mticket $ "Child" <> ": No such sharer-ticket"
-                        return ltid
-            lift $ insert_ TicketDependencyOffer
-                { ticketDependencyOfferOffer = ibiidOffer
-                , ticketDependencyOfferChild = ltid
-                }
-    askRelevantFollowers = do
-        hashTALID <- getEncodeKeyHashid
-        return $ \ shr wi -> followers hashTALID <$> ticketRelevance shr wi
-        where
-        followers hashTALID (talid, patch) =
-            let coll =
-                    if patch
-                        then LocalPersonCollectionSharerPatchFollowers
-                        else LocalPersonCollectionSharerTicketFollowers
-            in  coll shrRecip (hashTALID talid)
-    insertDep ractidOffer ltidParent child obiidAccept = do
     tdid <- insert LocalTicketDependency
         { localTicketDependencyParent  = ltidParent
         , localTicketDependencyCreated = now
@@ -1068,57 +1135,25 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
         , ticketDependencyAuthorRemoteOpen   = ractidOffer
         }
     return tdid
-    insertAccept luOffer obiidAccept tdid (talid, patch, _, parentCtx, childId, childCtx, childAuthor) = do
-        encodeRouteLocal <- getEncodeRouteLocal
-        encodeRouteHome <- getEncodeRouteHome
-        followers <- askFollowers
-        workItemFollowers <- askWorkItemFollowers
-        hLocal <- asksSite siteInstanceHost
-        obikhidAccept <- encodeKeyHashid obiidAccept
-        tdkhid <- encodeKeyHashid tdid
-        ra <- getJust $ remoteAuthorId author
-        let ObjURI hAuthor luAuthor = remoteAuthorURI author
 
-            audAuthor =
+askWorkItemFollowers
-                AudRemote hAuthor [luAuthor] (maybeToList $ remoteActorFollowers ra)
+    :: (MonadSite m, YesodHashids (SiteEnv m))
-            audParentContext = contextAudience parentCtx
+    => m (WorkItem -> LocalPersonCollection)
-            audChildContext = contextAudience childCtx
+askWorkItemFollowers = do
-            audParent = AudLocal [LocalActorSharer shrRecip] [followers talid patch]
+    hashTALID <- getEncodeKeyHashid
-            audChildAuthor =
+    hashLTID <- getEncodeKeyHashid
-                case childAuthor of
+    let workItemFollowers (WorkItemSharerTicket shr talid False) = LocalPersonCollectionSharerTicketFollowers shr $ hashTALID talid
-                    Left shr -> AudLocal [LocalActorSharer shr] []
+        workItemFollowers (WorkItemSharerTicket shr talid True)  = LocalPersonCollectionSharerPatchFollowers shr $ hashTALID talid
-                    Right (ObjURI h lu) -> AudRemote h [lu] []
+        workItemFollowers (WorkItemProjectTicket shr prj ltid)   = LocalPersonCollectionProjectTicketFollowers shr prj $ hashLTID ltid
-            audChildFollowers =
+        workItemFollowers (WorkItemRepoPatch shr rp ltid)        = LocalPersonCollectionRepoPatchFollowers shr rp $ hashLTID ltid
-                case childId of
+    return workItemFollowers
-                    Left (wi, _ltid) -> AudLocal [] [workItemFollowers wi]
-                    Right (ObjURI h _, luFollowers) -> AudRemote h [] [luFollowers]
 
-            (recipientSet, remoteActors, fwdHosts, audLocal, audRemote) =
+contextAudience
-                collectAudience $
+    :: Either
-                    audAuthor :
+        (Either (ShrIdent, PrjIdent) (ShrIdent, RpIdent))
-                    audParent :
+        (FedURI, Host, Maybe LocalURI, Maybe LocalURI)
-                    audChildAuthor :
+    -> [Aud URIMode]
-                    audChildFollowers :
+contextAudience ctx =
-                    audParentContext ++ audChildContext
-
-            recips = map encodeRouteHome audLocal ++ audRemote
-            doc = Doc hLocal Activity
-                { activityId       =
-                    Just $ encodeRouteLocal $
-                        SharerOutboxItemR shrRecip obikhidAccept
-                , activityActor    = encodeRouteLocal $ SharerR shrRecip
-                , activitySummary  = Nothing
-                , activityAudience = Audience recips [] [] [] [] []
-                , activitySpecific = AcceptActivity Accept
-                    { acceptObject = ObjURI hAuthor luOffer
-                    , acceptResult =
-                        Just $ encodeRouteLocal $ TicketDepR tdkhid
-                    }
-                }
-        update obiidAccept [OutboxItemActivity =. persistJSONObjectFromDoc doc]
-        return (doc, recipientSet, remoteActors, fwdHosts)
-        where
-        contextAudience ctx =
     case ctx of
         Left (Left (shr, prj)) ->
             pure $ AudLocal
@@ -1136,19 +1171,331 @@ sharerOfferDepF now shrRecip author body dep uTarget = do
             [ AudRemote hTracker [luTracker] []
             , AudRemote hProject [] (catMaybes [luFollowers, luTeam])
             ]
-        askFollowers = do
+
-            hashTALID <- getEncodeKeyHashid
+projectOfferDepF
-            return $ \ talid patch ->
+    :: UTCTime
-                let coll =
+    -> ShrIdent
-                        if patch
+    -> PrjIdent
-                            then LocalPersonCollectionSharerPatchFollowers
+    -> RemoteAuthor
-                            else LocalPersonCollectionSharerTicketFollowers
+    -> ActivityBody
-                in  coll shrRecip (hashTALID talid)
+    -> AP.TicketDependency URIMode
-        askWorkItemFollowers = do
+    -> FedURI
-            hashTALID <- getEncodeKeyHashid
+    -> ExceptT Text Handler (Text, Maybe (ExceptT Text Worker Text))
+projectOfferDepF now shrRecip prjRecip author body dep uTarget = do
+    luOffer <- fromMaybeE (activityId $ actbActivity body) "Offer without 'id'"
+    (parent, child) <- checkDepAndTarget dep uTarget
+    (localRecips, _) <- do
+        mrecips <- parseAudience $ activityAudience $ actbActivity body
+        fromMaybeE mrecips "Offer Dep with no recipients"
+    msig <- checkForward $ LocalActorProject shrRecip prjRecip
+    Entity jidRecip projectRecip <- lift $ runDB $ do
+        sid <- getKeyBy404 $ UniqueSharer shrRecip
+        getBy404 $ UniqueProject prjRecip sid
+    return $ (,) "Ran initial checks, doing the rest asynchronously" $ Just $ do
+        relevantParent <-
+            for (ticketRelevance shrRecip prjRecip parent) $ \ parentLtid -> do
+                parentAuthor <- runSiteDBExcept $ do
+                    (_, _, _, _, _, _, author) <- do
+                        mticket <- lift $ getProjectTicket shrRecip prjRecip parentLtid
+                        fromMaybeE mticket $ "Parent" <> ": No such project-ticket"
+                    lift $ getAuthor author
+                childDetail <- getWorkItemDetail "Child" child
+                return (parentLtid, parentAuthor, childDetail)
+        mhttp <- runSiteDBExcept $ do
+            mractid <- lift $ insertToInbox' now author body (projectInbox projectRecip) luOffer False
+            for mractid $ \ (ractid, ibiid) -> do
+                insertDepOffer ibiid parent child
+                mremotesHttpFwd <- lift $ for msig $ \ sig -> do
+                    relevantFollowers <- askRelevantFollowers
+                    let rf = relevantFollowers shrRecip prjRecip
+                        sieve =
+                            makeRecipientSet [] $ catMaybes
+                                [ rf parent
+                                , rf child
+                                ]
+                    remoteRecips <-
+                        insertRemoteActivityToLocalInboxes
+                            False ractid $
+                                localRecipSieve'
+                                    sieve False False localRecips
+                    (sig,) <$> deliverRemoteDB_J (actbBL body) ractid jidRecip sig remoteRecips
+                mremotesHttpAccept <- lift $ for relevantParent $ \ (parentLtid, parentAuthor, childDetail) -> do
+                    obiidAccept <- insertEmptyOutboxItem (projectOutbox projectRecip) now
+                    tdid <- insertDep now author ractid parentLtid (widIdent childDetail) obiidAccept
+                    (docAccept, localRecipsAccept, remoteRecipsAccept, fwdHostsAccept) <-
+                        insertAccept luOffer obiidAccept tdid parentLtid parentAuthor childDetail
+                    knownRemoteRecipsAccept <-
+                        deliverLocal'
+                            False
+                            (LocalActorProject shrRecip prjRecip)
+                            (projectInbox projectRecip)
+                            obiidAccept
+                            localRecipsAccept
+                    (obiidAccept,docAccept,fwdHostsAccept,) <$> deliverRemoteDB'' fwdHostsAccept obiidAccept remoteRecipsAccept knownRemoteRecipsAccept
+                return (mremotesHttpFwd, mremotesHttpAccept)
+        case mhttp of
+            Nothing -> return "I already have this activity in my inbox, doing nothing"
+            Just (mremotesHttpFwd, mremotesHttpAccept) -> do
+                for_ mremotesHttpFwd $ \ (sig, remotes) ->
+                    forkWorker "projectOfferDepF inbox-forwarding" $
+                        deliverRemoteHTTP_J now shrRecip prjRecip (actbBL body) sig remotes
+                for_ mremotesHttpAccept $ \ (obiid, doc, fwdHosts, remotes) ->
+                    forkWorker "projectOfferDepF Accept HTTP delivery" $
+                        deliverRemoteHttp' fwdHosts obiid doc remotes
+                return $
+                    case (mremotesHttpAccept, mremotesHttpFwd) of
+                        (Nothing, Nothing) -> "Parent not mine, just stored in inbox and no inbox-forwarding to do"
+                        (Nothing, Just _) -> "Parent not mine, just stored in inbox and ran inbox-forwarding"
+                        (Just _, Nothing) -> "Accepted new ticket dep, no inbox-forwarding to do"
+                        (Just _, Just _) -> "Accepted new ticket dep and ran inbox-forwarding of the Offer"
+    where
+    ticketRelevance shr prj (Left (WorkItemProjectTicket shr' prj' ltid))
+        | shr == shr' && prj == prj' = Just ltid
+    ticketRelevance _ _ _ = Nothing
+    insertDepOffer _          (Left _)  _     = return ()
+    insertDepOffer ibiidOffer (Right _) child =
+        for_ (ticketRelevance shrRecip prjRecip child) $ \ ltid -> do
+            _ <- do
+                mticket <- lift $ getProjectTicket shrRecip prjRecip ltid
+                fromMaybeE mticket $ "Child" <> ": No such project-ticket"
+            lift $ insert_ TicketDependencyOffer
+                { ticketDependencyOfferOffer = ibiidOffer
+                , ticketDependencyOfferChild = ltid
+                }
+    askRelevantFollowers = do
         hashLTID <- getEncodeKeyHashid
-            let workItemFollowers (WorkItemSharerTicket shr talid False) = LocalPersonCollectionSharerTicketFollowers shr $ hashTALID talid
+        return $
-                workItemFollowers (WorkItemSharerTicket shr talid True)  = LocalPersonCollectionSharerPatchFollowers shr $ hashTALID talid
+            \ shr prj wi -> followers hashLTID <$> ticketRelevance shr prj wi
-                workItemFollowers (WorkItemProjectTicket shr prj ltid)   = LocalPersonCollectionProjectTicketFollowers shr prj $ hashLTID ltid
+        where
-                workItemFollowers (WorkItemRepoPatch shr rp ltid)        = LocalPersonCollectionRepoPatchFollowers shr rp $ hashLTID ltid
+        followers hashLTID ltid =
-            return workItemFollowers
+            LocalPersonCollectionProjectTicketFollowers
+                shrRecip prjRecip (hashLTID ltid)
+    insertAccept luOffer obiidAccept tdid ltid parentAuthor (WorkItemDetail childId childCtx childAuthor) = do
+        encodeRouteLocal <- getEncodeRouteLocal
+        encodeRouteHome <- getEncodeRouteHome
+        followers <- askFollowers
+        workItemFollowers <- askWorkItemFollowers
+        hLocal <- asksSite siteInstanceHost
+        obikhidAccept <- encodeKeyHashid obiidAccept
+        tdkhid <- encodeKeyHashid tdid
+        ra <- getJust $ remoteAuthorId author
+        let ObjURI hAuthor luAuthor = remoteAuthorURI author
+
+            audAuthor =
+                AudRemote hAuthor [luAuthor] (maybeToList $ remoteActorFollowers ra)
+            audParentContext =
+                AudLocal
+                    []
+                    [ LocalPersonCollectionProjectTeam shrRecip prjRecip
+                    , LocalPersonCollectionProjectFollowers shrRecip prjRecip
+                    ]
+            audChildContext = contextAudience childCtx
+            audParentFollowers = AudLocal [] [followers ltid]
+            audParentAuthor =
+                case parentAuthor of
+                    Left shr -> AudLocal [LocalActorSharer shr] []
+                    Right (i, ro) ->
+                        AudRemote (instanceHost i) [remoteObjectIdent ro] []
+            audChildAuthor =
+                case childAuthor of
+                    Left shr -> AudLocal [LocalActorSharer shr] []
+                    Right (ObjURI h lu) -> AudRemote h [lu] []
+            audChildFollowers =
+                case childId of
+                    Left (wi, _ltid) -> AudLocal [] [workItemFollowers wi]
+                    Right (ObjURI h _, luFollowers) -> AudRemote h [] [luFollowers]
+
+            (recipientSet, remoteActors, fwdHosts, audLocal, audRemote) =
+                collectAudience $
+                    audAuthor :
+                    audParentAuthor : audParentFollowers :
+                    audChildAuthor : audChildFollowers :
+                    audParentContext : audChildContext
+
+            recips = map encodeRouteHome audLocal ++ audRemote
+            doc = Doc hLocal Activity
+                { activityId       =
+                    Just $ encodeRouteLocal $
+                        SharerOutboxItemR shrRecip obikhidAccept
+                , activityActor    = encodeRouteLocal $ ProjectR shrRecip prjRecip
+                , activitySummary  = Nothing
+                , activityAudience = Audience recips [] [] [] [] []
+                , activitySpecific = AcceptActivity Accept
+                    { acceptObject = ObjURI hAuthor luOffer
+                    , acceptResult =
+                        Just $ encodeRouteLocal $ TicketDepR tdkhid
+                    }
+                }
+        update obiidAccept [OutboxItemActivity =. persistJSONObjectFromDoc doc]
+        return (doc, recipientSet, remoteActors, fwdHosts)
+        where
+        askFollowers = do
+            hashLTID <- getEncodeKeyHashid
+            return $
+                \ ltid ->
+                    LocalPersonCollectionProjectTicketFollowers
+                        shrRecip prjRecip (hashLTID ltid)
+
+repoOfferDepF
+    :: UTCTime
+    -> ShrIdent
+    -> RpIdent
+    -> RemoteAuthor
+    -> ActivityBody
+    -> AP.TicketDependency URIMode
+    -> FedURI
+    -> ExceptT Text Handler (Text, Maybe (ExceptT Text Worker Text))
+repoOfferDepF now shrRecip rpRecip author body dep uTarget = do
+    luOffer <- fromMaybeE (activityId $ actbActivity body) "Offer without 'id'"
+    (parent, child) <- checkDepAndTarget dep uTarget
+    (localRecips, _) <- do
+        mrecips <- parseAudience $ activityAudience $ actbActivity body
+        fromMaybeE mrecips "Offer Dep with no recipients"
+    msig <- checkForward $ LocalActorRepo shrRecip rpRecip
+    Entity ridRecip repoRecip <- lift $ runDB $ do
+        sid <- getKeyBy404 $ UniqueSharer shrRecip
+        getBy404 $ UniqueRepo rpRecip sid
+    return $ (,) "Ran initial checks, doing the rest asynchronously" $ Just $ do
+        relevantParent <-
+            for (ticketRelevance shrRecip rpRecip parent) $ \ parentLtid -> do
+                parentAuthor <- runSiteDBExcept $ do
+                    (_, _, _, _, _, _, author, _) <- do
+                        mticket <- lift $ getRepoPatch shrRecip rpRecip parentLtid
+                        fromMaybeE mticket $ "Parent" <> ": No such repo-patch"
+                    lift $ getAuthor author
+                childDetail <- getWorkItemDetail "Child" child
+                return (parentLtid, parentAuthor, childDetail)
+        mhttp <- runSiteDBExcept $ do
+            mractid <- lift $ insertToInbox' now author body (repoInbox repoRecip) luOffer False
+            for mractid $ \ (ractid, ibiid) -> do
+                insertDepOffer ibiid parent child
+                mremotesHttpFwd <- lift $ for msig $ \ sig -> do
+                    relevantFollowers <- askRelevantFollowers
+                    let rf = relevantFollowers shrRecip rpRecip
+                        sieve =
+                            makeRecipientSet [] $ catMaybes
+                                [ rf parent
+                                , rf child
+                                ]
+                    remoteRecips <-
+                        insertRemoteActivityToLocalInboxes
+                            False ractid $
+                                localRecipSieve'
+                                    sieve False False localRecips
+                    (sig,) <$> deliverRemoteDB_R (actbBL body) ractid ridRecip sig remoteRecips
+                mremotesHttpAccept <- lift $ for relevantParent $ \ (parentLtid, parentAuthor, childDetail) -> do
+                    obiidAccept <- insertEmptyOutboxItem (repoOutbox repoRecip) now
+                    tdid <- insertDep now author ractid parentLtid (widIdent childDetail) obiidAccept
+                    (docAccept, localRecipsAccept, remoteRecipsAccept, fwdHostsAccept) <-
+                        insertAccept luOffer obiidAccept tdid parentLtid parentAuthor childDetail
+                    knownRemoteRecipsAccept <-
+                        deliverLocal'
+                            False
+                            (LocalActorRepo shrRecip rpRecip)
+                            (repoInbox repoRecip)
+                            obiidAccept
+                            localRecipsAccept
+                    (obiidAccept,docAccept,fwdHostsAccept,) <$> deliverRemoteDB'' fwdHostsAccept obiidAccept remoteRecipsAccept knownRemoteRecipsAccept
+                return (mremotesHttpFwd, mremotesHttpAccept)
+        case mhttp of
+            Nothing -> return "I already have this activity in my inbox, doing nothing"
+            Just (mremotesHttpFwd, mremotesHttpAccept) -> do
+                for_ mremotesHttpFwd $ \ (sig, remotes) ->
+                    forkWorker "repoOfferDepF inbox-forwarding" $
+                        deliverRemoteHTTP_R now shrRecip rpRecip (actbBL body) sig remotes
+                for_ mremotesHttpAccept $ \ (obiid, doc, fwdHosts, remotes) ->
+                    forkWorker "repoOfferDepF Accept HTTP delivery" $
+                        deliverRemoteHttp' fwdHosts obiid doc remotes
+                return $
+                    case (mremotesHttpAccept, mremotesHttpFwd) of
+                        (Nothing, Nothing) -> "Parent not mine, just stored in inbox and no inbox-forwarding to do"
+                        (Nothing, Just _) -> "Parent not mine, just stored in inbox and ran inbox-forwarding"
+                        (Just _, Nothing) -> "Accepted new ticket dep, no inbox-forwarding to do"
+                        (Just _, Just _) -> "Accepted new ticket dep and ran inbox-forwarding of the Offer"
+    where
+    ticketRelevance shr rp (Left (WorkItemRepoPatch shr' rp' ltid))
+        | shr == shr' && rp == rp' = Just ltid
+    ticketRelevance _ _ _ = Nothing
+    insertDepOffer _          (Left _)  _     = return ()
+    insertDepOffer ibiidOffer (Right _) child =
+        for_ (ticketRelevance shrRecip rpRecip child) $ \ ltid -> do
+            _ <- do
+                mticket <- lift $ getRepoPatch shrRecip rpRecip ltid
+                fromMaybeE mticket $ "Child" <> ": No such repo-patch"
+            lift $ insert_ TicketDependencyOffer
+                { ticketDependencyOfferOffer = ibiidOffer
+                , ticketDependencyOfferChild = ltid
+                }
+    askRelevantFollowers = do
+        hashLTID <- getEncodeKeyHashid
+        return $
+            \ shr rp wi -> followers hashLTID <$> ticketRelevance shr rp wi
+        where
+        followers hashLTID ltid =
+            LocalPersonCollectionRepoPatchFollowers
+                shrRecip rpRecip (hashLTID ltid)
+    insertAccept luOffer obiidAccept tdid ltid parentAuthor (WorkItemDetail childId childCtx childAuthor) = do
+        encodeRouteLocal <- getEncodeRouteLocal
+        encodeRouteHome <- getEncodeRouteHome
+        followers <- askFollowers
+        workItemFollowers <- askWorkItemFollowers
+        hLocal <- asksSite siteInstanceHost
+        obikhidAccept <- encodeKeyHashid obiidAccept
+        tdkhid <- encodeKeyHashid tdid
+        ra <- getJust $ remoteAuthorId author
+        let ObjURI hAuthor luAuthor = remoteAuthorURI author
+
+            audAuthor =
+                AudRemote hAuthor [luAuthor] (maybeToList $ remoteActorFollowers ra)
+            audParentContext =
+                AudLocal
+                    []
+                    [ LocalPersonCollectionRepoTeam shrRecip rpRecip
+                    , LocalPersonCollectionRepoFollowers shrRecip rpRecip
+                    ]
+            audChildContext = contextAudience childCtx
+            audParentFollowers = AudLocal [] [followers ltid]
+            audParentAuthor =
+                case parentAuthor of
+                    Left shr -> AudLocal [LocalActorSharer shr] []
+                    Right (i, ro) ->
+                        AudRemote (instanceHost i) [remoteObjectIdent ro] []
+            audChildAuthor =
+                case childAuthor of
+                    Left shr -> AudLocal [LocalActorSharer shr] []
+                    Right (ObjURI h lu) -> AudRemote h [lu] []
+            audChildFollowers =
+                case childId of
+                    Left (wi, _ltid) -> AudLocal [] [workItemFollowers wi]
+                    Right (ObjURI h _, luFollowers) -> AudRemote h [] [luFollowers]
+
+            (recipientSet, remoteActors, fwdHosts, audLocal, audRemote) =
+                collectAudience $
+                    audAuthor :
+                    audParentAuthor : audParentFollowers :
+                    audChildAuthor : audChildFollowers :
+                    audParentContext : audChildContext
+
+            recips = map encodeRouteHome audLocal ++ audRemote
+            doc = Doc hLocal Activity
+                { activityId       =
+                    Just $ encodeRouteLocal $
+                        SharerOutboxItemR shrRecip obikhidAccept
+                , activityActor    = encodeRouteLocal $ RepoR shrRecip rpRecip
+                , activitySummary  = Nothing
+                , activityAudience = Audience recips [] [] [] [] []
+                , activitySpecific = AcceptActivity Accept
+                    { acceptObject = ObjURI hAuthor luOffer
+                    , acceptResult =
+                        Just $ encodeRouteLocal $ TicketDepR tdkhid
+                    }
+                }
+        update obiidAccept [OutboxItemActivity =. persistJSONObjectFromDoc doc]
+        return (doc, recipientSet, remoteActors, fwdHosts)
+        where
+        askFollowers = do
+            hashLTID <- getEncodeKeyHashid
+            return $
+                \ ltid ->
+                    LocalPersonCollectionRepoPatchFollowers
+                        shrRecip rpRecip (hashLTID ltid)