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module State (
loadLocalStateHead,
createLocalStateHead,
updateSharedIdentity,
interactiveIdentityUpdate,
) where
import Control.Monad
import Control.Monad.Except
import Control.Monad.IO.Class
import Data.Foldable
import Data.Proxy
import Data.Text (Text)
import Data.Text qualified as T
import Erebos.Error
import Erebos.Identity
import Erebos.PubKey
import Erebos.State
import Erebos.Storable
import Erebos.Storage
import Terminal
loadLocalStateHead
:: (MonadStorage m, MonadError e m, FromErebosError e, MonadIO m)
=> Terminal -> m (Head LocalState)
loadLocalStateHead term = getStorage >>= loadHeads >>= \case
(h : _) -> return h
[] -> do
name <- liftIO $ do
setPrompt term "Name: "
getInputLine term $ KeepPrompt . maybe T.empty T.pack
devName <- liftIO $ do
setPrompt term "Device: "
getInputLine term $ KeepPrompt . maybe T.empty T.pack
( owner, shared ) <- if
| T.null name -> do
return ( Nothing, [] )
| otherwise -> do
owner <- createIdentity (Just name) Nothing
shared <- mstore SharedState
{ ssPrev = []
, ssType = Just $ sharedTypeID @(Maybe ComposedIdentity) Proxy
, ssValue = [ storedRef $ idExtData owner ]
}
return ( Just owner, [ shared ] )
identity <- createIdentity (if T.null devName then Nothing else Just devName) owner
st <- getStorage
storeHead st $ LocalState
{ lsPrev = Nothing
, lsIdentity = idExtData identity
, lsShared = shared
, lsOther = []
}
createLocalStateHead
:: (MonadStorage m, MonadError e m, FromErebosError e, MonadIO m)
=> [ Maybe Text ] -> m (Head LocalState)
createLocalStateHead [] = throwOtherError "createLocalStateHead: empty name list"
createLocalStateHead ( ownerName : names ) = do
owner <- createIdentity ownerName Nothing
identity <- foldM createSingleIdentity owner names
shared <- case names of
[] -> return []
_ : _ -> do
fmap (: []) $ mstore SharedState
{ ssPrev = []
, ssType = Just $ sharedTypeID @(Maybe ComposedIdentity) Proxy
, ssValue = [ storedRef $ idExtData owner ]
}
st <- getStorage
storeHead st $ LocalState
{ lsPrev = Nothing
, lsIdentity = idExtData identity
, lsShared = shared
, lsOther = []
}
where
createSingleIdentity owner name = createIdentity name (Just owner)
updateSharedIdentity :: (MonadHead LocalState m, MonadError e m, FromErebosError e) => Terminal -> m ()
updateSharedIdentity term = updateLocalState_ $ updateSharedState_ $ \case
Just identity -> do
Just . toComposedIdentity <$> interactiveIdentityUpdate term identity
Nothing -> throwOtherError "no existing shared identity"
interactiveIdentityUpdate :: (Foldable f, MonadStorage m, MonadIO m, MonadError e m, FromErebosError e) => Terminal -> Identity f -> m UnifiedIdentity
interactiveIdentityUpdate term fidentity = do
identity <- mergeIdentity fidentity
name <- liftIO $ do
setPrompt term $ T.unpack $ T.concat $ concat
[ [ T.pack "Name" ]
, case idName identity of
Just name -> [T.pack " [", name, T.pack "]"]
Nothing -> []
, [ T.pack ": " ]
]
getInputLine term $ KeepPrompt . maybe T.empty T.pack
if | T.null name -> return identity
| otherwise -> do
secret <- loadKey $ idKeyIdentity identity
maybe (throwOtherError "created invalid identity") return . validateExtendedIdentity =<<
mstore =<< sign secret =<< mstore . ExtendedIdentityData =<< return (emptyIdentityExtension $ idData identity)
{ idePrev = toList $ idExtDataF identity
, ideName = Just name
}
|