{-# LANGUAGE CPP #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
#if !MIN_VERSION_persistent(2,14,0)
{-# OPTIONS_GHC -Wno-redundant-constraints #-}
#endif

module Data.Mergeless.Persistent
  ( -- * Client side
    clientMakeSyncRequestQuery,
    clientMergeSyncResponseQuery,

    -- ** Raw processors
    clientSyncProcessor,

    -- * Server side
    serverProcessSyncQuery,
    serverProcessSyncWithCustomIdQuery,

    -- ** Sync processors
    serverSyncProcessor,
    serverSyncProcessorWithCustomId,

    -- * Utils

    -- ** Client side
    setupUnsyncedClientQuery,
    setupClientQuery,
    clientGetStoreQuery,

    -- ** Server side side
    serverGetStoreQuery,
    setupServerQuery,
  )
where

import Control.Monad
import Control.Monad.IO.Class
import qualified Data.Map as M
import Data.Maybe
import Data.Mergeless
import qualified Data.Set as S
import Database.Persist
import Database.Persist.Sql
import Lens.Micro

-- | Make a sync request on the client side
clientMakeSyncRequestQuery ::
  ( Ord sid,
    PersistEntity clientRecord,
    PersistField sid,
    PersistEntityBackend clientRecord ~ SqlBackend,
    MonadIO m
  ) =>
  -- | How to read a record
  (clientRecord -> a) ->
  -- | The server id field
  EntityField clientRecord (Maybe sid) ->
  -- | The deleted field
  EntityField clientRecord Bool ->
  SqlPersistT m (SyncRequest (Key clientRecord) sid a)
clientMakeSyncRequestQuery :: forall sid clientRecord (m :: * -> *) a.
(Ord sid, PersistEntity clientRecord, PersistField sid,
 PersistEntityBackend clientRecord ~ SqlBackend, MonadIO m) =>
(clientRecord -> a)
-> EntityField clientRecord (Maybe sid)
-> EntityField clientRecord Bool
-> SqlPersistT m (SyncRequest (Key clientRecord) sid a)
clientMakeSyncRequestQuery clientRecord -> a
func EntityField clientRecord (Maybe sid)
serverIdField EntityField clientRecord Bool
deletedField = do
  Map (Key clientRecord) a
syncRequestAdded <-
    forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (\(Entity Key clientRecord
cid clientRecord
ct) -> (Key clientRecord
cid, clientRecord -> a
func clientRecord
ct))
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
False
        ]
        []
  Set sid
syncRequestSynced <-
    forall a. Ord a => [a] -> Set a
S.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> Maybe b) -> [a] -> [b]
mapMaybe (\Entity clientRecord
e -> Entity clientRecord
e forall s a. s -> Getting a s a -> a
^. forall record field.
PersistEntity record =>
EntityField record field
-> forall (f :: * -> *).
   Functor f =>
   (field -> f field) -> Entity record -> f (Entity record)
fieldLens EntityField clientRecord (Maybe sid)
serverIdField)
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
!=. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
False
        ]
        []
  Set sid
syncRequestDeleted <-
    forall a. Ord a => [a] -> Set a
S.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> Maybe b) -> [a] -> [b]
mapMaybe (\Entity clientRecord
e -> Entity clientRecord
e forall s a. s -> Getting a s a -> a
^. forall record field.
PersistEntity record =>
EntityField record field
-> forall (f :: * -> *).
   Functor f =>
   (field -> f field) -> Entity record -> f (Entity record)
fieldLens EntityField clientRecord (Maybe sid)
serverIdField)
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
!=. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
True
        ]
        []
  forall (f :: * -> *) a. Applicative f => a -> f a
pure SyncRequest {Map (Key clientRecord) a
Set sid
syncRequestAdded :: Map (Key clientRecord) a
syncRequestSynced :: Set sid
syncRequestDeleted :: Set sid
syncRequestDeleted :: Set sid
syncRequestSynced :: Set sid
syncRequestAdded :: Map (Key clientRecord) a
..}

-- | Merge a sync response on the client side
clientMergeSyncResponseQuery ::
  ( PersistEntity clientRecord,
    PersistField sid,
    PersistEntityBackend clientRecord ~ SqlBackend,
    SafeToInsert clientRecord,
    MonadIO m
  ) =>
  -- | Create an un-deleted synced record on the client side
  (sid -> a -> clientRecord) ->
  -- | The server id field
  EntityField clientRecord (Maybe sid) ->
  -- | The deleted field
  EntityField clientRecord Bool ->
  SyncResponse (Key clientRecord) sid a ->
  SqlPersistT m ()
clientMergeSyncResponseQuery :: forall clientRecord sid (m :: * -> *) a.
(PersistEntity clientRecord, PersistField sid,
 PersistEntityBackend clientRecord ~ SqlBackend,
 SafeToInsert clientRecord, MonadIO m) =>
(sid -> a -> clientRecord)
-> EntityField clientRecord (Maybe sid)
-> EntityField clientRecord Bool
-> SyncResponse (Key clientRecord) sid a
-> SqlPersistT m ()
clientMergeSyncResponseQuery sid -> a -> clientRecord
func EntityField clientRecord (Maybe sid)
serverIdField EntityField clientRecord Bool
deletedField = forall (m :: * -> *) ci si a.
Monad m =>
ClientSyncProcessor ci si a m -> SyncResponse ci si a -> m ()
mergeSyncResponseCustom forall a b. (a -> b) -> a -> b
$ forall clientRecord sid (m :: * -> *) a.
(PersistEntity clientRecord, PersistField sid,
 PersistEntityBackend clientRecord ~ SqlBackend,
 SafeToInsert clientRecord, MonadIO m) =>
(sid -> a -> clientRecord)
-> EntityField clientRecord (Maybe sid)
-> EntityField clientRecord Bool
-> ClientSyncProcessor (Key clientRecord) sid a (SqlPersistT m)
clientSyncProcessor sid -> a -> clientRecord
func EntityField clientRecord (Maybe sid)
serverIdField EntityField clientRecord Bool
deletedField

clientSyncProcessor ::
  ( PersistEntity clientRecord,
    PersistField sid,
    PersistEntityBackend clientRecord ~ SqlBackend,
    SafeToInsert clientRecord,
    MonadIO m
  ) =>
  -- | Create an un-deleted synced record on the client side
  (sid -> a -> clientRecord) ->
  -- | The server id field
  EntityField clientRecord (Maybe sid) ->
  -- | The deleted field
  EntityField clientRecord Bool ->
  ClientSyncProcessor (Key clientRecord) sid a (SqlPersistT m)
clientSyncProcessor :: forall clientRecord sid (m :: * -> *) a.
(PersistEntity clientRecord, PersistField sid,
 PersistEntityBackend clientRecord ~ SqlBackend,
 SafeToInsert clientRecord, MonadIO m) =>
(sid -> a -> clientRecord)
-> EntityField clientRecord (Maybe sid)
-> EntityField clientRecord Bool
-> ClientSyncProcessor (Key clientRecord) sid a (SqlPersistT m)
clientSyncProcessor sid -> a -> clientRecord
func EntityField clientRecord (Maybe sid)
serverIdField EntityField clientRecord Bool
deletedField = ClientSyncProcessor {Map sid a -> ReaderT SqlBackend m ()
Map (Key clientRecord) sid -> ReaderT SqlBackend m ()
Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerAdded :: Map sid a -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientAdded :: Map (Key clientRecord) sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientAdded :: Map (Key clientRecord) sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerAdded :: Map sid a -> ReaderT SqlBackend m ()
..}
  where
    clientSyncProcessorSyncServerAdded :: Map sid a -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerAdded Map sid a
m = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall k a. Map k a -> [(k, a)]
M.toList Map sid a
m) forall a b. (a -> b) -> a -> b
$ \(sid
si, a
st) ->
      forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m ()
insert_ forall a b. (a -> b) -> a -> b
$ sid -> a -> clientRecord
func sid
si a
st
    clientSyncProcessorSyncClientAdded :: Map (Key clientRecord) sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientAdded Map (Key clientRecord) sid
m = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall k a. Map k a -> [(k, a)]
M.toList Map (Key clientRecord) sid
m) forall a b. (a -> b) -> a -> b
$ \(Key clientRecord
cid, sid
sid) ->
      forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
Key record -> [Update record] -> ReaderT backend m ()
update Key clientRecord
cid [EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Update v
=. forall a. a -> Maybe a
Just sid
sid]
    clientSyncProcessorSyncServerDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncServerDeleted Set sid
s = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a. Set a -> [a]
S.toList Set sid
s) forall a b. (a -> b) -> a -> b
$ \sid
sid ->
      forall backend (m :: * -> *) record.
(PersistQueryWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
[Filter record] -> ReaderT backend m ()
deleteWhere [EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. forall a. a -> Maybe a
Just sid
sid]
    clientSyncProcessorSyncClientDeleted :: Set sid -> ReaderT SqlBackend m ()
clientSyncProcessorSyncClientDeleted Set sid
s = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a. Set a -> [a]
S.toList Set sid
s) forall a b. (a -> b) -> a -> b
$ \sid
sid ->
      forall backend (m :: * -> *) record.
(PersistQueryWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
[Filter record] -> ReaderT backend m ()
deleteWhere [EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. forall a. a -> Maybe a
Just sid
sid, EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
True]

-- | Process a sync query on the server side.
serverProcessSyncQuery ::
  ( PersistEntity record,
    PersistEntityBackend record ~ SqlBackend,
    SafeToInsert record,
    MonadIO m
  ) =>
  -- | Filters to select the relevant items
  --
  -- Use these if you have multiple users and you want to sync per-user
  [Filter record] ->
  -- | How to read a record
  (record -> a) ->
  -- | How to insert a _new_ record
  (a -> record) ->
  SyncRequest ci (Key record) a ->
  SqlPersistT m (SyncResponse ci (Key record) a)
serverProcessSyncQuery :: forall record (m :: * -> *) a ci.
(PersistEntity record, PersistEntityBackend record ~ SqlBackend,
 SafeToInsert record, MonadIO m) =>
[Filter record]
-> (record -> a)
-> (a -> record)
-> SyncRequest ci (Key record) a
-> SqlPersistT m (SyncResponse ci (Key record) a)
serverProcessSyncQuery [Filter record]
filters record -> a
funcTo a -> record
funcFrom = forall ci si a (m :: * -> *).
(Ord si, Monad m) =>
ServerSyncProcessor ci si a m
-> SyncRequest ci si a -> m (SyncResponse ci si a)
processServerSyncCustom forall a b. (a -> b) -> a -> b
$ forall record (m :: * -> *) a ci.
(PersistEntity record, PersistEntityBackend record ~ SqlBackend,
 SafeToInsert record, MonadIO m) =>
[Filter record]
-> (record -> a)
-> (a -> record)
-> ServerSyncProcessor ci (Key record) a (SqlPersistT m)
serverSyncProcessor [Filter record]
filters record -> a
funcTo a -> record
funcFrom

-- | A server sync processor that uses the sqlkey of the record as the name
serverSyncProcessor ::
  ( PersistEntity record,
    PersistEntityBackend record ~ SqlBackend,
    SafeToInsert record,
    MonadIO m
  ) =>
  -- | Filters to select the relevant items
  --
  -- Use these if you have multiple users and you want to sync per-user
  [Filter record] ->
  -- | How to read a record
  (record -> a) ->
  -- | How to insert a _new_ record
  (a -> record) ->
  ServerSyncProcessor ci (Key record) a (SqlPersistT m)
serverSyncProcessor :: forall record (m :: * -> *) a ci.
(PersistEntity record, PersistEntityBackend record ~ SqlBackend,
 SafeToInsert record, MonadIO m) =>
[Filter record]
-> (record -> a)
-> (a -> record)
-> ServerSyncProcessor ci (Key record) a (SqlPersistT m)
serverSyncProcessor [Filter record]
filters record -> a
funcTo a -> record
funcFrom =
  ServerSyncProcessor {ReaderT SqlBackend m (Map (Key record) a)
Map ci a -> ReaderT SqlBackend m (Map ci (Key record))
forall {record} {backend} {m :: * -> *} {t :: * -> *}.
(PersistEntityBackend record ~ BaseBackend backend, MonadIO m,
 PersistStoreWrite backend, Foldable t, PersistEntity record) =>
t (Key record) -> ReaderT backend m (t (Key record))
serverSyncProcessorRead :: ReaderT SqlBackend m (Map (Key record) a)
serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci (Key record))
serverSyncProcessorDeleteItems :: Set (Key record) -> ReaderT SqlBackend m (Set (Key record))
serverSyncProcessorDeleteItems :: forall {record} {backend} {m :: * -> *} {t :: * -> *}.
(PersistEntityBackend record ~ BaseBackend backend, MonadIO m,
 PersistStoreWrite backend, Foldable t, PersistEntity record) =>
t (Key record) -> ReaderT backend m (t (Key record))
serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci (Key record))
serverSyncProcessorRead :: ReaderT SqlBackend m (Map (Key record) a)
..}
  where
    serverSyncProcessorRead :: ReaderT SqlBackend m (Map (Key record) a)
serverSyncProcessorRead = forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (\(Entity Key record
i record
record) -> (Key record
i, record -> a
funcTo record
record)) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList [Filter record]
filters []
    serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci (Key record))
serverSyncProcessorAddItems = forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM forall a b. (a -> b) -> a -> b
$ forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m (Key record)
insert forall b c a. (b -> c) -> (a -> b) -> a -> c
. a -> record
funcFrom
    serverSyncProcessorDeleteItems :: t (Key record) -> ReaderT backend m (t (Key record))
serverSyncProcessorDeleteItems t (Key record)
s = do
      forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
Key record -> ReaderT backend m ()
delete t (Key record)
s
      forall (f :: * -> *) a. Applicative f => a -> f a
pure t (Key record)
s

-- | Process a sync query on the server side with a custom id.
serverProcessSyncWithCustomIdQuery ::
  ( Ord sid,
    PersistEntity record,
    PersistField sid,
    PersistEntityBackend record ~ SqlBackend,
    SafeToInsert record,
    MonadIO m
  ) =>
  -- | The action to generate new identifiers
  SqlPersistT m sid ->
  -- | The id field
  EntityField record sid ->
  -- | Filters to select the relevant items
  --
  -- Use these if you have multiple users and you want to sync per-user
  [Filter record] ->
  -- | How to read a record
  (record -> (sid, a)) ->
  -- | How to insert a _new_ record
  (sid -> a -> record) ->
  SyncRequest ci sid a ->
  SqlPersistT m (SyncResponse ci sid a)
serverProcessSyncWithCustomIdQuery :: forall sid record (m :: * -> *) a ci.
(Ord sid, PersistEntity record, PersistField sid,
 PersistEntityBackend record ~ SqlBackend, SafeToInsert record,
 MonadIO m) =>
SqlPersistT m sid
-> EntityField record sid
-> [Filter record]
-> (record -> (sid, a))
-> (sid -> a -> record)
-> SyncRequest ci sid a
-> SqlPersistT m (SyncResponse ci sid a)
serverProcessSyncWithCustomIdQuery SqlPersistT m sid
genId EntityField record sid
idField [Filter record]
filters record -> (sid, a)
funcTo sid -> a -> record
funcFrom = forall ci si a (m :: * -> *).
(Ord si, Monad m) =>
ServerSyncProcessor ci si a m
-> SyncRequest ci si a -> m (SyncResponse ci si a)
processServerSyncCustom forall a b. (a -> b) -> a -> b
$ forall sid record (m :: * -> *) a ci.
(Ord sid, PersistEntity record, PersistField sid,
 PersistEntityBackend record ~ SqlBackend, SafeToInsert record,
 MonadIO m) =>
SqlPersistT m sid
-> EntityField record sid
-> [Filter record]
-> (record -> (sid, a))
-> (sid -> a -> record)
-> ServerSyncProcessor ci sid a (SqlPersistT m)
serverSyncProcessorWithCustomId SqlPersistT m sid
genId EntityField record sid
idField [Filter record]
filters record -> (sid, a)
funcTo sid -> a -> record
funcFrom

-- | A server sync processor that uses a custom key as the name
serverSyncProcessorWithCustomId ::
  ( Ord sid,
    PersistEntity record,
    PersistField sid,
    PersistEntityBackend record ~ SqlBackend,
    SafeToInsert record,
    MonadIO m
  ) =>
  -- | The action to generate new identifiers
  SqlPersistT m sid ->
  -- | The id field
  EntityField record sid ->
  -- | Filters to select the relevant items
  --
  -- Use these if you have multiple users and you want to sync per-user
  [Filter record] ->
  -- | How to read a record
  (record -> (sid, a)) ->
  -- | How to insert a _new_ record
  (sid -> a -> record) ->
  ServerSyncProcessor ci sid a (SqlPersistT m)
serverSyncProcessorWithCustomId :: forall sid record (m :: * -> *) a ci.
(Ord sid, PersistEntity record, PersistField sid,
 PersistEntityBackend record ~ SqlBackend, SafeToInsert record,
 MonadIO m) =>
SqlPersistT m sid
-> EntityField record sid
-> [Filter record]
-> (record -> (sid, a))
-> (sid -> a -> record)
-> ServerSyncProcessor ci sid a (SqlPersistT m)
serverSyncProcessorWithCustomId SqlPersistT m sid
genId EntityField record sid
idField [Filter record]
filters record -> (sid, a)
funcTo sid -> a -> record
funcFrom =
  ServerSyncProcessor {ReaderT SqlBackend m (Map sid a)
Map ci a -> ReaderT SqlBackend m (Map ci sid)
Set sid -> ReaderT SqlBackend m (Set sid)
serverSyncProcessorDeleteItems :: Set sid -> ReaderT SqlBackend m (Set sid)
serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci sid)
serverSyncProcessorRead :: ReaderT SqlBackend m (Map sid a)
serverSyncProcessorRead :: ReaderT SqlBackend m (Map sid a)
serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci sid)
serverSyncProcessorDeleteItems :: Set sid -> ReaderT SqlBackend m (Set sid)
..}
  where
    serverSyncProcessorRead :: ReaderT SqlBackend m (Map sid a)
serverSyncProcessorRead = forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (record -> (sid, a)
funcTo forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall record. Entity record -> record
entityVal) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList [Filter record]
filters []
    serverSyncProcessorAddItems :: Map ci a -> ReaderT SqlBackend m (Map ci sid)
serverSyncProcessorAddItems = forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM forall a b. (a -> b) -> a -> b
$ \a
a -> do
      sid
sid <- SqlPersistT m sid
genId
      let record :: record
record = sid -> a -> record
funcFrom sid
sid a
a
      forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m ()
insert_ record
record
      forall (f :: * -> *) a. Applicative f => a -> f a
pure sid
sid
    serverSyncProcessorDeleteItems :: Set sid -> ReaderT SqlBackend m (Set sid)
serverSyncProcessorDeleteItems Set sid
s = do
      forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ Set sid
s forall a b. (a -> b) -> a -> b
$ \sid
sid -> forall backend (m :: * -> *) record.
(PersistQueryWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
[Filter record] -> ReaderT backend m ()
deleteWhere [EntityField record sid
idField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. sid
sid]
      forall (f :: * -> *) a. Applicative f => a -> f a
pure Set sid
s

-- | Setup an unsynced client store
--
-- You shouldn't need this.
setupUnsyncedClientQuery ::
  ( PersistEntity clientRecord,
    PersistEntityBackend clientRecord ~ SqlBackend,
    SafeToInsert clientRecord,
    MonadIO m
  ) =>
  -- | How to insert a _new_ record
  (a -> clientRecord) ->
  [a] ->
  SqlPersistT m ()
setupUnsyncedClientQuery :: forall clientRecord (m :: * -> *) a.
(PersistEntity clientRecord,
 PersistEntityBackend clientRecord ~ SqlBackend,
 SafeToInsert clientRecord, MonadIO m) =>
(a -> clientRecord) -> [a] -> SqlPersistT m ()
setupUnsyncedClientQuery a -> clientRecord
func = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m (Key record)
insert forall b c a. (b -> c) -> (a -> b) -> a -> c
. a -> clientRecord
func)

-- | Setup a client store
--
-- You shouldn't need this.
setupClientQuery ::
  ( PersistEntity clientRecord,
    PersistEntityBackend clientRecord ~ SqlBackend,
    SafeToInsert clientRecord,
    MonadIO m
  ) =>
  -- | Create an un-deleted unsynced record on the client side
  (a -> clientRecord) ->
  -- | Create an un-deleted synced record on the client side
  (sid -> a -> clientRecord) ->
  -- | Create an deleted synced record on the client side
  (sid -> clientRecord) ->
  ClientStore (Key clientRecord) sid a ->
  SqlPersistT m ()
setupClientQuery :: forall clientRecord (m :: * -> *) a sid.
(PersistEntity clientRecord,
 PersistEntityBackend clientRecord ~ SqlBackend,
 SafeToInsert clientRecord, MonadIO m) =>
(a -> clientRecord)
-> (sid -> a -> clientRecord)
-> (sid -> clientRecord)
-> ClientStore (Key clientRecord) sid a
-> SqlPersistT m ()
setupClientQuery a -> clientRecord
funcU sid -> a -> clientRecord
funcS sid -> clientRecord
funcD ClientStore {Map sid a
Map (Key clientRecord) a
Set sid
clientStoreAdded :: forall ci si a. ClientStore ci si a -> Map ci a
clientStoreSynced :: forall ci si a. ClientStore ci si a -> Map si a
clientStoreDeleted :: forall ci si a. ClientStore ci si a -> Set si
clientStoreDeleted :: Set sid
clientStoreSynced :: Map sid a
clientStoreAdded :: Map (Key clientRecord) a
..} = do
  forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall k a. Map k a -> [(k, a)]
M.toList Map (Key clientRecord) a
clientStoreAdded) forall a b. (a -> b) -> a -> b
$ \(Key clientRecord
cid, a
st) ->
    forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
Key record -> record -> ReaderT backend m ()
insertKey
      Key clientRecord
cid
      (a -> clientRecord
funcU a
st)
  forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall k a. Map k a -> [(k, a)]
M.toList Map sid a
clientStoreSynced) forall a b. (a -> b) -> a -> b
$ \(sid
sid, a
st) ->
    forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m ()
insert_ (sid -> a -> clientRecord
funcS sid
sid a
st)
  forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall a. Set a -> [a]
S.toList Set sid
clientStoreDeleted) forall a b. (a -> b) -> a -> b
$ \sid
sid ->
    forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend, SafeToInsert record) =>
record -> ReaderT backend m ()
insert_ (sid -> clientRecord
funcD sid
sid)

-- | Get a client store
--
-- You shouldn't need this.
clientGetStoreQuery ::
  ( Ord sid,
    PersistEntity clientRecord,
    PersistField sid,
    PersistEntityBackend clientRecord ~ SqlBackend,
    MonadIO m
  ) =>
  -- | How to red a record
  (clientRecord -> a) ->
  -- | The server id field
  EntityField clientRecord (Maybe sid) ->
  -- | The deleted field
  EntityField clientRecord Bool ->
  SqlPersistT m (ClientStore (Key clientRecord) sid a)
clientGetStoreQuery :: forall sid clientRecord (m :: * -> *) a.
(Ord sid, PersistEntity clientRecord, PersistField sid,
 PersistEntityBackend clientRecord ~ SqlBackend, MonadIO m) =>
(clientRecord -> a)
-> EntityField clientRecord (Maybe sid)
-> EntityField clientRecord Bool
-> SqlPersistT m (ClientStore (Key clientRecord) sid a)
clientGetStoreQuery clientRecord -> a
func EntityField clientRecord (Maybe sid)
serverIdField EntityField clientRecord Bool
deletedField = do
  Map (Key clientRecord) a
clientStoreAdded <-
    forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (\(Entity Key clientRecord
cid clientRecord
ct) -> (Key clientRecord
cid, clientRecord -> a
func clientRecord
ct))
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
False
        ]
        []
  Map sid a
clientStoreSynced <-
    forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> Maybe b) -> [a] -> [b]
mapMaybe (\e :: Entity clientRecord
e@(Entity Key clientRecord
_ clientRecord
ct) -> (,) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (Entity clientRecord
e forall s a. s -> Getting a s a -> a
^. forall record field.
PersistEntity record =>
EntityField record field
-> forall (f :: * -> *).
   Functor f =>
   (field -> f field) -> Entity record -> f (Entity record)
fieldLens EntityField clientRecord (Maybe sid)
serverIdField) forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> forall (f :: * -> *) a. Applicative f => a -> f a
pure (clientRecord -> a
func clientRecord
ct))
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
!=. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
False
        ]
        []
  Set sid
clientStoreDeleted <-
    forall a. Ord a => [a] -> Set a
S.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> Maybe b) -> [a] -> [b]
mapMaybe (\Entity clientRecord
e -> Entity clientRecord
e forall s a. s -> Getting a s a -> a
^. forall record field.
PersistEntity record =>
EntityField record field
-> forall (f :: * -> *).
   Functor f =>
   (field -> f field) -> Entity record -> f (Entity record)
fieldLens EntityField clientRecord (Maybe sid)
serverIdField)
      forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList
        [ EntityField clientRecord (Maybe sid)
serverIdField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
!=. forall a. Maybe a
Nothing,
          EntityField clientRecord Bool
deletedField forall v typ.
PersistField typ =>
EntityField v typ -> typ -> Filter v
==. Bool
True
        ]
        []
  forall (f :: * -> *) a. Applicative f => a -> f a
pure ClientStore {Map sid a
Map (Key clientRecord) a
Set sid
clientStoreDeleted :: Set sid
clientStoreSynced :: Map sid a
clientStoreAdded :: Map (Key clientRecord) a
clientStoreAdded :: Map (Key clientRecord) a
clientStoreSynced :: Map sid a
clientStoreDeleted :: Set sid
..}

-- | Get the server store from the database
--
-- You shouldn't need this.
serverGetStoreQuery ::
  ( PersistEntity record,
    PersistEntityBackend record ~ SqlBackend,
    MonadIO m
  ) =>
  -- | How to read a record
  (record -> a) ->
  SqlPersistT m (ServerStore (Key record) a)
serverGetStoreQuery :: forall record (m :: * -> *) a.
(PersistEntity record, PersistEntityBackend record ~ SqlBackend,
 MonadIO m) =>
(record -> a) -> SqlPersistT m (ServerStore (Key record) a)
serverGetStoreQuery record -> a
func = forall si a. Map si a -> ServerStore si a
ServerStore forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall k a. Ord k => [(k, a)] -> Map k a
M.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (\(Entity Key record
stid record
st) -> (Key record
stid, record -> a
func record
st)) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall record backend (m :: * -> *).
(MonadIO m, PersistQueryRead backend,
 PersistRecordBackend record backend) =>
[Filter record]
-> [SelectOpt record] -> ReaderT backend m [Entity record]
selectList [] []

-- | Set up a server store in the database.
--
-- You shouldn't need this.
-- This uses 'insertKey' function and is therefore unsafe.
setupServerQuery ::
  ( PersistEntity record,
    PersistEntityBackend record ~ SqlBackend,
    MonadIO m
  ) =>
  -- | How to write a record
  (a -> record) ->
  ServerStore (Key record) a ->
  SqlPersistT m ()
setupServerQuery :: forall record (m :: * -> *) a.
(PersistEntity record, PersistEntityBackend record ~ SqlBackend,
 MonadIO m) =>
(a -> record) -> ServerStore (Key record) a -> SqlPersistT m ()
setupServerQuery a -> record
func ServerStore {Map (Key record) a
serverStoreItems :: forall si a. ServerStore si a -> Map si a
serverStoreItems :: Map (Key record) a
..} = forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
t a -> (a -> m b) -> m ()
forM_ (forall k a. Map k a -> [(k, a)]
M.toList Map (Key record) a
serverStoreItems) forall a b. (a -> b) -> a -> b
$ \(Key record
i, a
e) -> forall (f :: * -> *) a. Functor f => f a -> f ()
void forall a b. (a -> b) -> a -> b
$ forall backend record (m :: * -> *).
(PersistStoreWrite backend, MonadIO m,
 PersistRecordBackend record backend) =>
Key record -> record -> ReaderT backend m ()
insertKey Key record
i forall a b. (a -> b) -> a -> b
$ a -> record
func a
e

#if !MIN_VERSION_persistent(2,14,0)
type SafeToInsert a = a ~ a
#endif