{-# LANGUAGE OverloadedStrings #-}
module IrcBot.MessageParser where

import Data.List
import Data.Maybe
import IrcBot.RandomFileFinder
import IrcBot.RemoteUploader

getNthElementFromString :: String -> Int -> Char
getNthElementFromString stringData step = stringData !! step


                                                   

slice :: Int -> Int  -> String -> String
slice start end = take (end-start-1) . drop (start+1)


parseMessageMeta :: String -> String
parseMessageMeta messageMeta = do
                        let startEndIndexes = elemIndices ':' messageMeta
                        if length startEndIndexes >= 2 then do
                            let  startIndex = startEndIndexes !! 0
                            let  endIndex = startEndIndexes !! 1
                            slice (startIndex) (endIndex) messageMeta
                        else ""    


parseMessageTargetFromMeta :: [String] -> String
parseMessageTargetFromMeta messageMetaArray = do

                            if (length messageMetaArray) >= 3 
                                then
                                    messageMetaArray !! 2
                                else 
                                    ""

-- :YOUR_NICK!~YOUR_NICK@YOUR_IP PRIVMSG #91623_my_test_channel :TEXT MESSAGE


parseMessageType :: [String] -> String
parseMessageType messageMetaArray = do
                if(length messageMetaArray) >= 3
                        then 
                            messageMetaArray !! 1
                        else
                            ""    


targetDeterminer :: String -> String -> String
targetDeterminer nickName channelName = do
                    if (length channelName) > 1 then channelName else nickName 

parseNick :: String -> String

parseNick dataString = 
        do
        let  startIndex = elemIndex ':' dataString
        let  endIndex = elemIndex '!' dataString
        if startIndex /= Nothing && endIndex /= Nothing 
            then
                slice (fromJust startIndex) (fromJust endIndex) dataString
            else ""    
        

parseChannelName :: String -> String

parseChannelName dataString = 
        do
        let  startIndex = elemIndex '#' dataString
        let dropppedString = drop (fromJust startIndex) dataString
        let endIndex = elemIndex ' ' dropppedString
        if startIndex /= Nothing && endIndex /= Nothing 
            then 
                take (fromJust endIndex) dropppedString
            else ""


parseMessageText :: String -> String
parseMessageText dataString =
            do
            (drop 1 (unwords (drop 3 (words dataString))))




basicRandomImplementation :: String -> IO String

basicRandomImplementation basicInput = do 

    let parameters = (words basicInput)
    print ".random parameters: "
    print parameters
    if length parameters > 1 then 
        do
            let directoryName = parameters !! 1
            getRandomFile  directoryName >>= \randomFileName -> uploadLocalFile randomFileName
        else    
            getRandomFile  "maidos" >>= \randomFileName -> uploadLocalFile randomFileName