79 lines
1.8 KiB
Haskell
79 lines
1.8 KiB
Haskell
module Page.EditValue
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( Model,
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initialModel,
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Action,
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updateModel,
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viewModel,
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)
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where
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import Api
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import Data.Aeson qualified as A
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import Data.Aeson.KeyMap qualified as AM
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import Data.ByteString.Lazy.UTF8 as LB
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import Data.Maybe
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import Form qualified as F
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import Miso
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import Miso.String (toMisoString)
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import Schema
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data Model = Model
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{ collection :: String,
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fileName :: String,
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input :: Maybe A.Value,
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schema :: Schema
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}
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deriving (Show, Eq)
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initialModel :: String -> String -> JSM (Either String Model)
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initialModel collection fileName = do
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schema' <- fetchSchema
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input' <- fetchPost fileName
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pure do
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schema <- schema'
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input <- input'
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pure $ Model {..}
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data Action
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= NoOp
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| FormChanged A.Value
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| FormSubmitted A.Value
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| EntityWritten (Either String ())
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deriving (Eq, Show)
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updateModel :: Action -> Model -> Effect Action Model
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updateModel NoOp m = noEff m
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updateModel (FormChanged (Just -> input)) m = noEff m {input}
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updateModel (FormSubmitted output) m =
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m <# do EntityWritten <$> updatePost m.fileName output
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updateModel (EntityWritten _) m = noEff m
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viewModel :: Model -> View Action
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viewModel m = do
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let input = (fromMaybe (A.Object AM.empty) m.input)
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div_ [] $
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[ viewForm input m.schema,
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viewInput input,
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viewOutput input m.schema
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]
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viewForm :: A.Value -> Schema -> View Action
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viewForm input =
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fmap (either FormChanged FormSubmitted)
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. flip F.runForm input
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. schemaForm
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viewInput :: A.Value -> View Action
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viewInput input =
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pre_ [] [text (toMisoString (A.encode input))]
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viewOutput :: A.Value -> Schema -> View Action
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viewOutput input schema =
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pre_ [] $
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[ text $
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toMisoString
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( either ("Left " <>) (("Right " <>) . LB.toString) $
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(A.encode <$> ((schemaForm schema).fill input))
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)
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]
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