module Dodge.Terminal (
    doTerminalCommandEffect,
    guardDisconnected,
    makeTermLine,
    commandFutureLines,
    quitCommand,
    helpCommand,
    commandsCommand,
    connectionBlurbLines,
    disconnectTerminal,
    basicTerminal,
    simpleTermMessage,
    damageCodeCommand,
    sensorCommand,
    makeColorTermLine,
    makeTermPara,
    toggleCommand,
) where

import Color
import Data.Char
import Data.Foldable
import qualified Data.Map.Strict as M
import Data.Maybe
--import qualified Data.Text as T
import Dodge.Data.World
import Dodge.Default
import Dodge.SoundLogic
import Justify
import LensHelp
import ListHelp (safeHead, safeUncons)
import Sound.Data

basicTerminal :: Terminal
basicTerminal =
    defaultTerminal
        { _tmDisplayedLines = []
        , _tmFutureLines = []
        , _tmMaxLines = 14
        , _tmTitle = "TERMINAL"
        , _tmInput = defaultTerminalInput
        , _tmScrollCommands = [quitCommand]
        , _tmWriteCommands = [helpCommand, commandsCommand]
        , _tmBootProgram = TerminalBootLines connectionBlurb
        , _tmDeathEffect = TmWdWdDoDeathTriggers
        }

connectionBlurbLines :: [TerminalLine] -> [TerminalLine]
connectionBlurbLines tls =
    [ termSoundLine computerBeepingS
    , TerminalLineDisplay 0 (TerminalLineConst "CONNECTING" termTextColor)
    , TerminalLineDisplay 10 (TerminalLineConst "..." termTextColor)
    , TerminalLineDisplay 10 (TerminalLineConst "CONNECTED" termTextColor)
    ]
        ++ tls
        ++ [TerminalLineTerminalEffect 0 (TmTmSetStatus TerminalReady)]

quitCommand :: TerminalCommand
quitCommand =
    TerminalCommand
        { _tcString = "QUIT"
        , _tcAlias = ["Q", "EXIT", "X", "SHUTDOWN", ""]
        , _tcHelp = "DISCONNECTS THE TERMINAL."
        , _tcEffect = TerminalCommandArguments $ NoArguments [TerminalLineEffect 0 TmWdWdDisconnectTerminal]
        }

helpCommand :: TerminalCommand
helpCommand =
    TerminalCommand
        { _tcString = "HELP"
        , _tcAlias = ["H", "MAN"]
        , _tcHelp = "DISPLAYS HELP FOR A SPECIFIC COMMAND."
        , _tcEffect = TerminalCommandEffectHelp -- \tm -> OneArgument "AN AVAILABLE COMMAND" . getCommandsHelp tm
        }

getCommandsHelp :: Terminal -> World -> M.Map String [TerminalLine]
getCommandsHelp tm w = foldr f mempty $ getCommands tm
  where
    f tc =
        M.insert
            (_tcString tc)
            ( [ makeTermLine "COMMAND:"
              , makeColorTermLine commandColor (_tcString tc)
              , makeTermLine "ALIASES:"
              , makeColorTermLine commandColor (unwords (_tcAlias tc))
              ]
                ++ case argumentHelp tc tm w of
                    (arghelp, Nothing) -> makeTermPara $ _tcHelp tc ++ " " ++ arghelp
                    (arghelp, Just args) ->
                        makeTermPara (_tcHelp tc ++ " " ++ arghelp)
                            ++ [makeColorTermLine commandColor $ unwords args]
            )

commandsCommand :: TerminalCommand
commandsCommand =
    TerminalCommand
        { _tcString = "COMMANDS"
        , _tcAlias = ["COMMAND", "COM"]
        , _tcHelp = "DISPLAYS AVAILABLE COMMANDS."
        , _tcEffect = TerminalCommandEffectCommands
        }

connectionBlurb :: [TerminalLine]
connectionBlurb =
    [ termSoundLine computerBeepingS
    , TerminalLineDisplay 0 (TerminalLineConst "CONNECTING" termTextColor)
    , TerminalLineDisplay 10 (TerminalLineConst "..." termTextColor)
    , TerminalLineDisplay 10 (TerminalLineConst "CONNECTED" termTextColor)
    , TerminalLineTerminalEffect 0 (TmTmSetStatus TerminalReady)
    ]

termSoundLine :: SoundID -> TerminalLine
termSoundLine sid = TerminalLineEffect 0 (TmWdWdTermSound sid)

--  where
--    termsound tm w = soundStart TerminalSound tpos sid Nothing w
--      where
--        tpos = fromMaybe 0 $ w ^? buttons . ix (_tmButtonID tm) . btPos

termTextColor :: Color
termTextColor = greyN 0.9

getCommands :: Terminal -> [TerminalCommand]
getCommands tm = _tmScrollCommands tm ++ _tmWriteCommands tm

makeTermLine :: String -> TerminalLine
makeTermLine = makeColorTermLine termTextColor

makeTermPara :: String -> [TerminalLine]
makeTermPara = map makeTermLine . makeParagraph 60

makeColorTermPara :: Color -> String -> [TerminalLine]
makeColorTermPara col = map (makeColorTermLine col) . makeParagraph 60

makeColorTermLine :: Color -> String -> TerminalLine
makeColorTermLine col str = TerminalLineDisplay 0 $ TerminalLineConst str col

commandColor :: Color
commandColor = yellow

doTerminalCommandEffect :: TerminalCommandEffect -> Terminal -> World -> EffectArguments
doTerminalCommandEffect tce = case tce of
    TerminalCommandArguments eas -> \_ _ -> eas
    TerminalCommandEffectDamageCoding -> \_ -> OneArgument "A DAMAGE TYPE" . getDamageCoding
    TerminalCommandEffectSensorParameter -> \tm -> OneArgument "A SENSOR PARAMETER" . sensorInfoMap tm
    TerminalCommandEffectLinkedObject -> \tm _ -> OneArgument "A LINKED OBJECT" (togglesToEffects tm)
    TerminalCommandEffectHelp -> \tm -> OneArgument "AN AVAILABLE COMMAND" . getCommandsHelp tm
    TerminalCommandEffectNoArgumentsStr str -> \_ _ -> NoArguments (makeTermPara str)
    TerminalCommandEffectCommands -> \tm _ ->
        NoArguments
            ( makeTermLine "AVAILABLE COMMANDS:" :
              makeColorTermPara commandColor (unwords (map _tcString $ getCommands tm))
            )
    TerminalCommandEffectSingleCommand eff followingLines -> \_ _ -> NoArguments $ TerminalLineEffect 0 (TmWdWdfromWdWd eff) : map makeTermLine followingLines
    TerminalCommandEffectNone -> \_ _ -> NoArguments []

argumentHelp :: TerminalCommand -> Terminal -> World -> (String, Maybe [String])
argumentHelp tc tm w = case doTerminalCommandEffect (_tcEffect tc) tm w of
    NoArguments{} -> ("ANY ARGUMENTS PROVIDED TO THIS COMMAND ARE IGNORED.", Nothing)
    OneArgument argtype argm ->
        ( "EXPECTS " ++ argtype ++ " AS ARGUMENT. AVAILABLE ARGUMENTS: "
        , Just (M.keys argm)
        )

--infoCommand :: String -> TerminalCommand
--infoCommand str =
--    TerminalCommand
--        { _tcString = "INFORMATION"
--        , _tcAlias = ["INFO", "I"]
--        , _tcHelp = "DISPLAYS INFORMATION CONCERNING THE TERMINAL."
--        , _tcEffect = TerminalCommandEffectNoArgumentsStr str -- \_ _ -> NoArguments (makeTermPara str)
--        }

--singleCommand :: [String] -> String -> [String] -> String -> WdWd -> TerminalCommand
--singleCommand followingLines command aliases htext eff =
--    TerminalCommand
--        { _tcString = command
--        , _tcAlias = aliases
--        , _tcHelp = htext
--        , _tcEffect = TerminalCommandEffectSingleCommand eff followingLines
--        }

guardDisconnected :: Terminal -> World -> World -> World
guardDisconnected tm w w' = case _tmStatus tm of
    TerminalOff -> w
    TerminalBusy -> w
    TerminalReady -> w'

getDamageCoding :: World -> M.Map String [TerminalLine]
getDamageCoding = decodedtmap . _sensorCoding . _cwgParams . _cwGen . _cWorld

sensorInfoMap :: Terminal -> World -> M.Map String [TerminalLine]
sensorInfoMap tm w =
    M.fromList
        [ ("REQUIREMENT", getSensor _proxRequirement tm w)
        , ("DISTANCE", getSensor _proxDist tm w)
        , ("CURRENTSTATUS", getSensor _proxStatus tm w)
        , ("PASTSTATUS", getSensor _sensToggle tm w)
        ]

getSensor :: Show a => (Sensor -> a) -> Terminal -> World -> [TerminalLine]
getSensor f tm w =
    maybe
        []
        (makeTermPara . map toUpper . show . f)
        (w ^? cWorld . lWorld . machines . ix (_tmMachineID tm) . mcType . _McSensor)

toggleCommand :: TerminalCommand
toggleCommand =
    TerminalCommand
        { _tcString = "TOGGLE"
        , _tcAlias = ["TOG"]
        , _tcHelp = "PERFORMS A REVERSABLE EFFECT."
        , _tcEffect = TerminalCommandEffectLinkedObject -- \tm _ -> OneArgument "A LINKED OBJECT" (togglesToEffects tm)
        }

decodedtmap :: M.Map DamageType (PaletteColor, DecorationShape) -> M.Map String [TerminalLine]
decodedtmap = M.mapKeys show . M.map ((: []) . makeTermLine . show)

sensorCommand :: TerminalCommand
sensorCommand =
    TerminalCommand
        { _tcString = "SENSOR"
        , _tcAlias = ["SEN"]
        , _tcHelp = "ACCESS INFORMATION CONCERNING THE CONNECTED SENSOR."
        , _tcEffect = TerminalCommandEffectSensorParameter -- \tm -> OneArgument "A SENSOR PARAMETER" . sensorInfoMap tm
        }

disconnectTerminal :: Terminal -> World -> World
disconnectTerminal tm w =
    w
        & cWorld . lWorld . terminals . ix (_tmID tm) . tmStatus .~ TerminalOff
        & exitTerminalSubInv
        & cWorld . lWorld . terminals . ix (_tmID tm) . tmFutureLines
            .~ [TerminalLineTerminalEffect 0 TmTmClearDisplayedLines]

exitTerminalSubInv :: World -> World
exitTerminalSubInv w = case w ^? hud . hudElement . subInventory . termID of
    Just _ -> w & hud . hudElement . subInventory .~ NoSubInventory
    _ -> w

damageCodeCommand :: TerminalCommand
damageCodeCommand =
    TerminalCommand
        { _tcString = "DAMAGECODE"
        , _tcAlias = ["DCODE", "DC"]
        , _tcHelp = "DISPLAYS THE SHAPE AND COLOR ASSOCIATED WITH A GIVEN DAMAGE TYPE."
        , _tcEffect = TerminalCommandEffectDamageCoding -- \_ -> OneArgument "A DAMAGE TYPE" . getDamageCoding
        }

--infoClearInput :: Terminal -> [TerminalLine] -> World -> World
--infoClearInput tm tls =
--    cWorld . lWorld . terminals . ix (_tmID tm)
--        %~ ( (tmInput .~ TerminalInput T.empty True (0, 0))
--                . (tmFutureLines ++.~ tls)
--           )

togglesToEffects :: Terminal -> M.Map String [TerminalLine]
togglesToEffects = fmap f . _tmToggles
  where
    f tt = [TerminalLineEffect 0 $ TmWdWdfromWdWd $ WdWdNegateTrig (_ttTriggerID tt)]

-- \_ -> triggers . ix (_ttTriggerID tt) %~ not]
simpleTermMessage :: [String] -> Terminal
simpleTermMessage strs = defaultTerminal & tmFutureLines .~ map makeTermLine strs

commandFutureLines :: String -> Terminal -> World -> [TerminalLine]
commandFutureLines s tm w = fromMaybe [errline "^ INVALID COMMAND"] $ do
    (str, args) <- safeUncons $ words s
    command <- find (\tc -> _tcString tc == str || str `elem` _tcAlias tc) (getCommands tm)
    case doTerminalCommandEffect (_tcEffect command) tm w of
        NoArguments tls -> Just tls
        OneArgument argtype m ->
            Just $
                fromMaybe [errline $ "^ INVALID ARGUMENT: EXPECTS " ++ argtype] $
                    safeHead args >>= (m M.!?)
  where
    errline = makeColorTermLine red