{-# LANGUAGE FlexibleContexts          #-}
{-# LANGUAGE OverloadedStrings         #-}

module Lucid.Svg.Path where

import           Data.Text             (Text)
import qualified Data.Text             as T

--   moveto (absolute)
mA :: Text -> Text -> Text
mA x y = T.concat ["M " ,x, ",", y, " "]

-- | moveto (relative)
mR :: Text -> Text -> Text
mR dx dy = T.concat ["m ", dx, ",", dy, " "]

-- | lineto (absolute)
lA :: Text -> Text -> Text
lA x y = T.concat ["L ", x, ",", y, " "]

-- | lineto (relative)
lR :: Text -> Text -> Text
lR dx dy = T.concat ["l ", dx, ",", dy, " "]

-- | horizontal lineto (absolute)
hA :: Text -> Text
hA x = T.concat ["H ", x, " "]

-- | horizontal lineto (relative)
hR :: Text -> Text
hR dx = T.concat ["h ", dx, " "]

-- | vertical lineto (absolute)
vA :: Text -> Text
vA y = T.concat ["V ", y, " "]

-- | vertical lineto (relative)
vR :: Text -> Text
vR dy = T.concat ["v ", dy, " "]

-- | Cubic Bezier curve (absolute)
cA :: Text -> Text -> Text -> Text -> Text -> Text -> Text
cA c1x c1y c2x c2y x y = T.concat ["C ", c1x, ",", c1y, " ", c2x, ",", c2y, " ", x, " ", y]

-- | Cubic Bezier curve (relative)
cR :: Text -> Text -> Text -> Text -> Text -> Text -> Text
cR dc1x dc1y dc2x dc2y dx dy = T.concat ["c ", dc1x, ",", dc1y, " ", dc2x, ",", dc2y, " ", dx, " ", dy]

-- | Smooth Cubic Bezier curve (absolute)
sA :: Text -> Text -> Text -> Text -> Text
sA c2x c2y x y = T.concat ["S ", c2x, ",", c2y, " ", x, ",", y, " "]

-- | Smooth Cubic Bezier curve (relative)
sR :: Text -> Text -> Text -> Text -> Text
sR dc2x dc2y dx dy = T.concat ["s ", dc2x, ",", dc2y, " ", dx, ",", dy, " "]

-- | Quadratic Bezier curve (absolute)
qA :: Text -> Text -> Text -> Text -> Text
qA cx cy x y = T.concat ["Q ", cx, ",", cy, " ", x, ",", y, " "]

-- | Quadratic Bezier curve (relative)
qR :: Text -> Text -> Text -> Text -> Text
qR dcx dcy dx dy = T.concat ["q ", dcx, ",", dcy, " ", dx, ",", dy, " " ]

-- | Smooth Quadratic Bezier curve (absolute)
tA  :: Text -> Text -> Text
tA x y = T.concat ["T ", " ", x, ",", y, " "]

-- | Smooth Quadratic Bezier curve (relative)
tR :: Text -> Text -> Text
tR x y = T.concat [ "t ", x, ",", y, " "]

-- | Arc (absolute)
aA :: Text -> Text -> Text -> Text -> Text -> Text -> Text -> Text
aA rx ry xrot largeFlag sweepFlag x y =
  T.concat ["A ", rx, ",", ry, " ", xrot, " ", largeFlag, " ", sweepFlag, " ", x, " ", y, " "]

-- | Arc (relative)
aR :: Text -> Text -> Text -> Text -> Text -> Text -> Text -> Text
aR rx ry xrot largeFlag sweepFlag x y =
  T.concat ["a ", rx, ",", ry, " ", xrot, " ", largeFlag, " ", sweepFlag, " ", x, " ", y, " "]

-- | closepath
z :: Text
z = "Z"

-- | SVG Transform components
-- | Specifies a translation by @x@ and @y@
translate :: Text -> Text -> Text
translate x y = T.concat ["translate(", x, " ", y, ")"]

-- | Specifies a scale operation by @x@ and @y@
scale :: Text -> Text -> Text
scale x y = T.concat ["scale(", x, " ", y, ")"]

-- | Specifies a rotation by @rotate-angle@ degrees
rotate :: Text -> Text
rotate angle = T.concat ["rotate(", angle, ")"]

-- | Specifies a rotation by @rotate-angle@ degrees about the given time @rx,ry@
rotateAround :: Text -> Text -> Text -> Text
rotateAround angle rx ry = T.concat ["rotate(", angle, ",", rx, ",", ry, ")"]

-- | Skew tansformation along x-axis
skewX :: Text -> Text
skewX angle = T.concat ["skewX(", angle, ")"]

-- | Skew tansformation along y-axis
skewY :: Text -> Text
skewY angle = T.concat ["skewY(", angle, ")"]

-- | Specifies a transform in the form of a transformation matrix
matrix :: Text -> Text -> Text -> Text -> Text -> Text -> Text
matrix a b c_ d e f =  T.concat ["matrix(",  a, ",",  b, ",",  c_, ",",  d, ",", e, ",",  f, ")"]