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{-# LANGUAGE TemplateHaskell #-}
module Pager.Types where

import Data.Aeson.TH (Options(fieldLabelModifier), deriveJSON, defaultOptions)
import Data.Text (Text)


data Action
  = None
  -- | FocusWindow Int (Maybe Text)
  | FocusWorkspace Text
  -- | MoveWindowToWorkspace Int Text
  -- | CopyWindowToWorkspace Int Text
  | Batch Action Action

instance Monoid Action where
    mempty = None

instance Semigroup Action where
    x <> None = x
    None <> x = x
    Batch x1 x2 <> Batch x3 x4 = x1 <> x2 <> x3 <> x4
    Batch x1 x2 <> x3 = x1 <> x2 <> x3
    x1 <> x2 = Batch x1 x2

data Geometry = Geometry
  { geometry_x :: Int
  , geometry_y :: Int
  , geometry_width :: Int
  , geometry_height :: Int
  }

data Window = Window
  { window_id :: Int
  , window_title :: Text
  , window_geometry :: Geometry
  , window_focused :: Bool
  , window_urgent :: Bool
  }

data Workspace = Workspace
  { workspace_geometry :: Geometry
  , workspace_focused :: Bool
  , workspace_name :: Text
  , workspace_windows :: [Window] -- sorted by z-order, earlier windows overlap later ones
  }

$(deriveJSON defaultOptions { fieldLabelModifier = tail . dropWhile (/='_') } ''Geometry)
$(deriveJSON defaultOptions { fieldLabelModifier = tail . dropWhile (/='_') } ''Window)
$(deriveJSON defaultOptions { fieldLabelModifier = tail . dropWhile (/='_') } ''Workspace)