{-# Language TemplateHaskell, OverloadedLists #-}
{-|
Module      : Client.Image.Palette
Description : Palette of colors used to render the UI
Copyright   : (c) Eric Mertens, 2016
License     : ISC
Maintainer  : emertens@gmail.com

This module provides names for all of the colors used in the UI.
-}
module Client.Image.Palette
  (
  -- * Palette type
    Palette(..)
  , palNicks
  , palSelf
  , palSelfHighlight
  , palTime
  , palMeta
  , palSigil
  , palLabel
  , palLatency
  , palWindowName
  , palError
  , palTextBox
  , palActivity
  , palMention

  -- * Defaults
  , defaultPalette
  ) where

import           Control.Lens
import           Data.Vector (Vector)
import           Graphics.Vty.Attributes

-- | Color palette used for rendering the client UI
data Palette = Palette
  { _palNicks         :: Vector Attr -- ^ colors for highlighting nicknames
  , _palSelf          :: Attr -- ^ color of our own nickname(s)
  , _palSelfHighlight :: Maybe Attr -- ^ color of our own nickname(s) in mentions
  , _palTime          :: Attr -- ^ color of message timestamps
  , _palMeta          :: Attr -- ^ color of coalesced metadata
  , _palSigil         :: Attr -- ^ color of sigils (e.g. @+)
  , _palLabel         :: Attr -- ^ color of information labels
  , _palLatency       :: Attr -- ^ color of ping latency
  , _palWindowName    :: Attr -- ^ color of window name
  , _palError         :: Attr -- ^ color of error messages
  , _palTextBox       :: Attr -- ^ color of textbox markers
  , _palActivity      :: Attr -- ^ color of window name with activity
  , _palMention       :: Attr -- ^ color of window name with mention
  }
  deriving Show

makeLenses ''Palette

-- | Default UI colors that look nice in my dark solarized color scheme
defaultPalette :: Palette
defaultPalette = Palette
  { _palNicks         = defaultNickColorPalette
  , _palSelf          = withForeColor defAttr red
  , _palSelfHighlight = Nothing
  , _palTime          = withForeColor defAttr brightBlack
  , _palMeta          = withForeColor defAttr brightBlack
  , _palSigil         = withForeColor defAttr cyan
  , _palLabel         = withForeColor defAttr green
  , _palLatency       = withForeColor defAttr yellow
  , _palWindowName    = withForeColor defAttr cyan
  , _palError         = withForeColor defAttr red
  , _palTextBox       = withForeColor defAttr brightBlack
  , _palActivity      = withForeColor defAttr green
  , _palMention       = withForeColor defAttr red
  }

-- | Default nick highlighting colors that look nice in my dark solarized
-- color scheme.
defaultNickColorPalette :: Vector Attr
defaultNickColorPalette =
  withForeColor defAttr <$>
    [cyan, magenta, green, yellow, blue,
     brightCyan, brightMagenta, brightGreen, brightBlue]