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{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE DerivingVia #-}
{-# LANGUAGE LambdaCase #-}
module OwnTracks.Command
-- | https://owntracks.org/booklet/tech/json/
(Command(..)) where
import Data.Aeson
import Data.Aeson.Types (Parser)
import Data.ByteString (ByteString)
import Data.ByteString.Base64
import Data.Functor ((<&>))
import Data.Text (Text)
import qualified Data.Text as T
import Data.Text.Encoding (encodeUtf8)
import Data.Time (UTCTime, defaultTimeLocale,
parseTimeM)
import Database.Persist
import GHC.Generics (Generic)
import OwnTracks.Configuration
import OwnTracks.Waypoint
data Command =
Dump
-- ^ Triggers the publish of a configuration message (iOS)
| GetStatus
-- ^ Triggers the publish of a status message to ../status (iOS)
| ReportSteps { reportStepsFrom :: Maybe Int, reportStepsTo :: Maybe Int }
-- ^ Triggers the report of a steps messages_(iOS)_
| ReportLocation
-- ^ Triggers the publish of a location messages (iOS,Android) Don‘t expect device to be online. Send with QoS>0. Device will receive and repond when activated next time
| ClearWaypoints
-- ^ deletes all waypoints/regions (iOS)
| SetWaypoints [Waypoint]
-- ^ Imports (merge) and activates new waypoints (iOS,Android)
| SetConfiguration Configuration
-- ^ Imports and activates new configuration values (iOS,Android)
| GetWaypoints
-- ^ Triggers publish of a waypoints message (iOS,Android)
deriving (Eq, Show, Generic)
instance ToJSON Command where
toJSON c = object ( "_type" .= String "cmd"
: "action" .= String action
: others )
where action = case c of
Dump -> "dump"
GetStatus -> "status"
ReportSteps _ _ -> "reportSteps"
ReportLocation -> "reportLocation"
ClearWaypoints -> "clearWaypoints"
SetWaypoints _ -> "setWaypoints"
SetConfiguration _ -> "setConfiguration"
GetWaypoints -> "waypoints"
others = case c of
ReportSteps f t -> [ "from" .= f, "to" .= t ]
SetWaypoints ws -> [ "waypoints" .= ws ]
SetConfiguration c -> [ "configuration" .= c ]
_ -> []
instance FromJSON Command where
parseJSON (Object v) = do
action :: Text <- v .: "action"
case action of
"dump" -> pure Dump
"status" -> pure GetStatus
"reportSteps" -> ReportSteps <$> v .: "from" <*> v .: "to"
"reportLocation" -> pure ReportLocation
"clearWaypoints" -> pure ClearWaypoints
"setWaypoints" -> SetWaypoints <$> v .: "waypoints"
"setConfiguration" -> SetConfiguration <$> v .: "configuration"
"waypoints" -> pure GetWaypoints
_ -> fail "unknown action in _type=command"
parseJSON _ = fail "Command should be an object"
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