import json

from . import 4InARowDraw
from funcs import logThis

# Starts the game
def fourInARowStart(channel, user, opponent):
    with open("resources/games/games.json", "r") as f:
        data = json.load(f)
    
    if user.lower() != opponent.lower():
        if channel not in data["4 in a row games"]:

            board = [ [ 0 for i in range(7) ] for j in range(6) ]

            data["4 in a row games"][channel] = {"board": board,"winner":0,"win direction":"",
                "win coordinates":[0,0],"players":[user,opponent],"turn":0}

            with open("resources/games/games.json", "w") as f:
                json.dump(data,f,indent=4)
            
            4InARowDraw.drawImage(channel)

            return "Started game. It's "+user+"'s turn", True, False, False
        else:
            return "There's already a 4 in a row game going on in this channel", False, False, False
    else:
        return "You can't play against yourself", False, False, False

# Places a piece at the lowest available point in a specific column
def placePiece(channel : str,player : int,column : int):
    with open("resources/games/games.json", "r") as f:
        data = json.load(f)
    
    if channel in data["4 in a row games"]:
        board = data["4 in a row games"][channel]["board"]

        placementx, placementy = -1, column

        for x in range(len(board)):
            if board[x][column] == 0:
                placementx = x
        
        
        if placementx != -1:
            board[placementx][placementy] = player
            data["4 in a row games"][channel]["board"] = board
            turn = (data["4 in a row games"][channel]["turn"]+1)%2
            data["4 in a row games"][channel]["turn"] = turn

            with open("resources/games/games.json", "w") as f:
                json.dump(data,f,indent=4)

            won, winDirection, winCoordinates = isWon(channel)

            if won != 0:
                gameWon = True
                data["4 in a row games"][channel]["winner"] = won
                data["4 in a row games"][channel]["win direction"] = winDirection
                data["4 in a row games"][channel]["win coordinates"] = winCoordinates

                message = data["4 in a row games"][channel]["players"][won-1]+" won. Adding 20 GwendoBucks to their account."
            else:
                gameWon = False
                message = data["4 in a row games"][channel]["players"][player-1]+" placed a piece in column "+str(column)+". It's now "+data["4 in a row games"][channel]["players"][turn]+"'s turn."

            with open("resources/games/games.json", "w") as f:
                json.dump(data,f,indent=4)
            
            4InARowDraw.drawImage(channel)
            return message, True, True, gameWon
        else:
            return "There isn't any room in that column", True, True, False
    else:
        return "There's no game in this channel", False, False, False
    

# Parses command
def parseFourInARow(command, channel, user):

    print(command)
    if command == "" or command == " ":
        return "I didn't get that. \"Use !fourinarow start\" to start a game.", False, False, False
    

    elif command.startswith(" start "):
        command = command.replace(" start ","")
        return fourInARowStart(channel,user,command)

    elif command.startswith(" stop"):
        with open("resources/games/games.json", "r") as f:
            data = json.load(f)

        if user in data["4 in a row games"][channel]["players"]:
            return "Ending game.", False, False, True
        else:
            return "You can't end a game where you're not a player.", False, False, False
    elif command.startswith(" place"):
        commands = command.split(" ")
        #try:
        return placePiece(channel,int(commands[2]),int(commands[3])-1)
        #except:
        #    return "I didn't quite get that", False, False, False
    else:
        return "I didn't get that", False, False, False

def isWon(channel):
    logThis("Checking for win",channel)
    won = 0
    winDirection = ""
    winCoordinates = [0,0]

    with open("resources/games/games.json", "r") as f:
        data = json.load(f)

    game = data["4 in a row games"][channel]["board"]

    for line in range(len(game)):
        for place in range(len(game[line])):
            if won == 0:
                piecePlayer = game[line][place]
                if piecePlayer != 0:
                    # Checks horizontal
                    try:
                        pieces = [game[line][place+1],game[line][place+2],game[line][place+3]]
                    except:
                        pieces = [0]

                    if all(x == piecePlayer for x in pieces):
                        won = piecePlayer
                        winDirection = "h"
                        winCoordinates = [line,place]

                    # Checks vertical
                    try:
                        pieces = [game[line+1][place],game[line+2][place],game[line+3][place]]
                    except:
                        pieces = [0]

                    if all(x == piecePlayer for x in pieces):
                        won = piecePlayer
                        winDirection = "v"
                        winCoordinates = [line,place]

                    # Checks right diagonal
                    try:
                        pieces = [game[line+1][place+1],game[line+2][place+2],game[line+3][place+3]]
                    except:
                        pieces = [0]

                    if all(x == piecePlayer for x in pieces):
                        won = piecePlayer
                        winDirection = "r"
                        winCoordinates = [line,place]

                    # Checks left diagonal
                    try:
                        pieces = [game[line+1][place-1],game[line+2][place-2],game[line+3][place-3]]
                    except:
                        pieces = [0]

                    if all(x == piecePlayer for x in pieces):
                        won = piecePlayer
                        winDirection = "l"
                        winCoordinates = [line,place]


    return won, winDirection, winCoordinates