module TD.Data.MaskPosition
  ( MaskPosition(..)    
  , defaultMaskPosition 
  ) where

import qualified Data.Aeson as A
import qualified Data.Aeson.Types as AT
import qualified TD.Lib.Internal as I
import qualified TD.Data.MaskPoint as MaskPoint

data MaskPosition
  = MaskPosition -- ^ Position on a photo where a mask is placed
    { MaskPosition -> Maybe MaskPoint
point   :: Maybe MaskPoint.MaskPoint -- ^ Part of the face, relative to which the mask is placed
    , MaskPosition -> Maybe Double
x_shift :: Maybe Double              -- ^ Shift by X-axis measured in widths of the mask scaled to the face size, from left to right. (For example, -1.0 will place the mask just to the left of the default mask position)
    , MaskPosition -> Maybe Double
y_shift :: Maybe Double              -- ^ Shift by Y-axis measured in heights of the mask scaled to the face size, from top to bottom. (For example, 1.0 will place the mask just below the default mask position)
    , MaskPosition -> Maybe Double
scale   :: Maybe Double              -- ^ Mask scaling coefficient. (For example, 2.0 means a doubled size)
    }
  deriving (MaskPosition -> MaskPosition -> Bool
(MaskPosition -> MaskPosition -> Bool)
-> (MaskPosition -> MaskPosition -> Bool) -> Eq MaskPosition
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: MaskPosition -> MaskPosition -> Bool
== :: MaskPosition -> MaskPosition -> Bool
$c/= :: MaskPosition -> MaskPosition -> Bool
/= :: MaskPosition -> MaskPosition -> Bool
Eq, Int -> MaskPosition -> ShowS
[MaskPosition] -> ShowS
MaskPosition -> String
(Int -> MaskPosition -> ShowS)
-> (MaskPosition -> String)
-> ([MaskPosition] -> ShowS)
-> Show MaskPosition
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> MaskPosition -> ShowS
showsPrec :: Int -> MaskPosition -> ShowS
$cshow :: MaskPosition -> String
show :: MaskPosition -> String
$cshowList :: [MaskPosition] -> ShowS
showList :: [MaskPosition] -> ShowS
Show)

instance I.ShortShow MaskPosition where
  shortShow :: MaskPosition -> String
shortShow MaskPosition
    { point :: MaskPosition -> Maybe MaskPoint
point   = Maybe MaskPoint
point_
    , x_shift :: MaskPosition -> Maybe Double
x_shift = Maybe Double
x_shift_
    , y_shift :: MaskPosition -> Maybe Double
y_shift = Maybe Double
y_shift_
    , scale :: MaskPosition -> Maybe Double
scale   = Maybe Double
scale_
    }
      = String
"MaskPosition"
        String -> ShowS
forall a. [a] -> [a] -> [a]
++ [String] -> String
I.cc
        [ String
"point"   String -> Maybe MaskPoint -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe MaskPoint
point_
        , String
"x_shift" String -> Maybe Double -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Double
x_shift_
        , String
"y_shift" String -> Maybe Double -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Double
y_shift_
        , String
"scale"   String -> Maybe Double -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Double
scale_
        ]

instance AT.FromJSON MaskPosition where
  parseJSON :: Value -> Parser MaskPosition
parseJSON v :: Value
v@(AT.Object Object
obj) = do
    String
t <- Object
obj Object -> Key -> Parser String
forall a. FromJSON a => Object -> Key -> Parser a
A..: Key
"@type" :: AT.Parser String

    case String
t of
      String
"maskPosition" -> Value -> Parser MaskPosition
parseMaskPosition Value
v
      String
_              -> Parser MaskPosition
forall a. Monoid a => a
mempty
    
    where
      parseMaskPosition :: A.Value -> AT.Parser MaskPosition
      parseMaskPosition :: Value -> Parser MaskPosition
parseMaskPosition = String
-> (Object -> Parser MaskPosition) -> Value -> Parser MaskPosition
forall a. String -> (Object -> Parser a) -> Value -> Parser a
A.withObject String
"MaskPosition" ((Object -> Parser MaskPosition) -> Value -> Parser MaskPosition)
-> (Object -> Parser MaskPosition) -> Value -> Parser MaskPosition
forall a b. (a -> b) -> a -> b
$ \Object
o -> do
        Maybe MaskPoint
point_   <- Object
o Object -> Key -> Parser (Maybe MaskPoint)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"point"
        Maybe Double
x_shift_ <- Object
o Object -> Key -> Parser (Maybe Double)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"x_shift"
        Maybe Double
y_shift_ <- Object
o Object -> Key -> Parser (Maybe Double)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"y_shift"
        Maybe Double
scale_   <- Object
o Object -> Key -> Parser (Maybe Double)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"scale"
        MaskPosition -> Parser MaskPosition
forall a. a -> Parser a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (MaskPosition -> Parser MaskPosition)
-> MaskPosition -> Parser MaskPosition
forall a b. (a -> b) -> a -> b
$ MaskPosition
          { point :: Maybe MaskPoint
point   = Maybe MaskPoint
point_
          , x_shift :: Maybe Double
x_shift = Maybe Double
x_shift_
          , y_shift :: Maybe Double
y_shift = Maybe Double
y_shift_
          , scale :: Maybe Double
scale   = Maybe Double
scale_
          }
  parseJSON Value
_ = Parser MaskPosition
forall a. Monoid a => a
mempty

instance AT.ToJSON MaskPosition where
  toJSON :: MaskPosition -> Value
toJSON MaskPosition
    { point :: MaskPosition -> Maybe MaskPoint
point   = Maybe MaskPoint
point_
    , x_shift :: MaskPosition -> Maybe Double
x_shift = Maybe Double
x_shift_
    , y_shift :: MaskPosition -> Maybe Double
y_shift = Maybe Double
y_shift_
    , scale :: MaskPosition -> Maybe Double
scale   = Maybe Double
scale_
    }
      = [Pair] -> Value
A.object
        [ Key
"@type"   Key -> Value -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Text -> Value
AT.String Text
"maskPosition"
        , Key
"point"   Key -> Maybe MaskPoint -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe MaskPoint
point_
        , Key
"x_shift" Key -> Maybe Double -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Double
x_shift_
        , Key
"y_shift" Key -> Maybe Double -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Double
y_shift_
        , Key
"scale"   Key -> Maybe Double -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Double
scale_
        ]

defaultMaskPosition :: MaskPosition
defaultMaskPosition :: MaskPosition
defaultMaskPosition =
  MaskPosition
    { point :: Maybe MaskPoint
point   = Maybe MaskPoint
forall a. Maybe a
Nothing
    , x_shift :: Maybe Double
x_shift = Maybe Double
forall a. Maybe a
Nothing
    , y_shift :: Maybe Double
y_shift = Maybe Double
forall a. Maybe a
Nothing
    , scale :: Maybe Double
scale   = Maybe Double
forall a. Maybe a
Nothing
    }