{-
  Gifcurry
  (C) 2016 David Lettier
  lettier.com
-}

{-# LANGUAGE
    DeriveDataTypeable
  , NamedFieldPuns
#-}
{-# OPTIONS_GHC -fno-cse #-}

import Control.Monad
import System.Console.CmdArgs

import qualified Gifcurry

data CliArgs =
  CliArgs
    { input_file :: String
    , output_file :: String
    , save_as_video :: Bool
    , start_time :: Float
    , duration_time :: Float
    , width_size :: Int
    , quality_percent :: Float
    , font_choice :: String
    , top_text :: String
    , bottom_text :: String
    , left_crop :: Float
    , right_crop :: Float
    , top_crop :: Float
    , bottom_crop :: Float
    }
  deriving (Data, Typeable, Show, Eq)

programName :: String
programName = "gifcurry_cli"

info :: String
info =
  unlines
    [ logo
    , "Gifcurry" ++ " " ++ Gifcurry.versionNumber
    , "(C) 2016 David Lettier"
    ,"lettier.com"
    ]

cliArgs :: CliArgs
cliArgs =
  CliArgs
    { input_file
        = ""
        &= groupname "FILE IO"
        &= typFile
        &= help "The input video file path and name."
    , output_file
        = ""
        &= groupname "FILE IO"
        &= typFile
        &= help "The output GIF file path and name."
    , save_as_video
        = False
        &= groupname "FILE IO"
        &= name "m"
        &= help "If present, saves the GIF as a video."
    , start_time
        = 0.0
        &= groupname "TIME"
        &= name "s"
        &= help "The start time (in seconds) for the first frame."
    , duration_time
        = 1.0
        &= groupname "TIME"
        &= help "How long the GIF lasts (in seconds) from the start time."
    , width_size
        = 500
        &= groupname "OUTPUT FILE SIZE"
        &= help "How wide the GIF needs to be. Height will scale to match."
    , quality_percent
        = 100.0
        &= groupname "OUTPUT FILE SIZE"
        &= help
          (  "From 1 (very low quality) to 100 (the best quality). "
          ++ "Controls how many colors are used and how many frames per second there are."
          )
    , font_choice
        = Gifcurry.defaultFontChoice
        &= groupname "TEXT"
        &= typ "TEXT"
        &= help "Choose your desired font for the top and bottom text."
    , top_text
        = ""
        &= groupname "TEXT"
        &= typ "TEXT"
        &= name "t"
        &= help "The text you wish to add to the top of the GIF."
    , bottom_text
        = ""
        &= groupname "TEXT"
        &= typ "TEXT"
        &= name "b"
        &= help "The text you wish to add to the bottom of the GIF."
    , left_crop
        = 0.0
        &= groupname "CROP"
        &= name "L"
        &= help "The amount you wish to crop from the left."
    , right_crop
        = 0.0
        &= groupname "CROP"
        &= name "R"
        &= help "The amount you wish to crop from the right."
    , top_crop
        = 0.0
        &= groupname "CROP"
        &= name "T"
        &= help "The amount you wish to crop from the top."
    , bottom_crop
        = 0.0
        &= groupname "CROP"
        &= name "B"
        &= help "The amount you wish to crop from the bottom."
    }
    &= summary info
    &= program programName
    &= details ["Visit https://github.com/lettier/gifcurry for more information.", ""]

main :: IO ()
main = do
  cliArgs' <- cmdArgs cliArgs
  let params = makeGifParams cliArgs'
  putStrLn info
  paramsValid <- Gifcurry.gifParamsValid params
  if paramsValid
    then void $ Gifcurry.gif params
    else
      putStrLn $
        "[INFO] Type \"" ++ programName ++ " -?\" for help."
  return ()

makeGifParams :: CliArgs -> Gifcurry.GifParams
makeGifParams
  CliArgs
    { input_file
    , output_file
    , save_as_video
    , start_time
    , duration_time
    , width_size
    , quality_percent
    , font_choice
    , top_text
    , bottom_text
    , left_crop
    , right_crop
    , top_crop
    , bottom_crop
    }
  =
  Gifcurry.GifParams
    { Gifcurry.inputFile      = input_file
    , Gifcurry.outputFile     = output_file
    , Gifcurry.saveAsVideo    = save_as_video
    , Gifcurry.startTime      = start_time
    , Gifcurry.durationTime   = duration_time
    , Gifcurry.widthSize      = width_size
    , Gifcurry.qualityPercent = quality_percent
    , Gifcurry.fontChoice     = font_choice
    , Gifcurry.topText        = top_text
    , Gifcurry.bottomText     = bottom_text
    , Gifcurry.leftCrop       = left_crop
    , Gifcurry.rightCrop      = right_crop
    , Gifcurry.topCrop        = top_crop
    , Gifcurry.bottomCrop     = bottom_crop
    }

logo :: String
logo =
  unlines
    [ ""
    , "       ╓╦NÑ╫╫╫╫╫ÑNw,                                                           "
    , "    , `Ñ╫╫╫╫Ñ `'╩╫╫╫Ñw      ,╓ææµ  ║▓▓⌐ ,▄▄▓▄                                  "
    , "   ]╫Ñ  Ñ╫╫╫ ,╫N ╙╫╫╫╫Ñ   ╓▓▓▀╙╙▀╨ .╓, ,▓▓▌,  ,╓╥╓, ,,  ,,, ,, ,╓ ,, ,╓ ,,  ., "
    , "  ]╫╫╫Ñ '╫╫⌐ Ñ╫⌐  Ñ╫╫╫╫Ñ -▓▓M ╥╥╥╥ ▐▓▓ ▀▓▓▀▀ ▄▓▀╙▀▀ ▓▓Γ ╫▓▌ ╫▓▓▌▀ ▓▓▓▀▀╙▓▓  ▓▓▀"
    , "  ╩╫╫╫╫H ╠Ñ 1╫H ╫ '╫╫╫╫╣  ▓▓H ╙▐▓▓ ▐▓▓  ▓▓Γ ▐▓▓⌐    ▓▓Γ ╫▓▌ ╫▓▌   ▓▓▌   ║▓▌╢▓▌ "
    , "  ]╫╫╫╫╫ ' j╫Å j╫H ╠╫╫╫╫  ╙▓▓▄▄▄▓▓ ▐▓▓  ▓▓Γ  ▀▓▌▄▄▄ ▓▓▌▄▓▓▌ ╫▓▌   ▓▓▌    ▓▓▓▓  "
    , "   Ñ╫╫╫╫N jÑ╬ .╫╫╫⌐ Ñ╫╬┘    └╙╙╙└  `└└  └└`    ╙╙╙`  ╙╙└`└` `└└   └└`    ,▓▓▀  "
    , "    ╨╫╫╫╫N '┘ ╬╫╫╫╫  ╩`                                                 ▀▀▀└   "
    , "     `╙Ñ╫╫╫N╦╦╫╫╫╫╫╩                                                           "
    , "         `'╙╙╙╙'``                                                             "
    , ""
    ]