import tkinter as tk

from class_in_other_file._snakeFood import SnakeFood
from class_in_other_file._movement import Movement

import tkinter.messagebox as msgbox

"""
Main
"""


class SnakeGame:
    def __init__(self, master, canvas):
        self._master = master
        self._c = canvas
        self._title = "The Real Snake Game"

        self._headRow = 0
        self._headCol = 0

        self._newHeadRow = None
        self._newHeadCol = None
        # photo = tk.PhotoImage("/cross.gif")

        # BINDINGS
        self._master.bind('<Right>', lambda _: self.moveSnake(0, 1))
        self._master.bind('<Left>', lambda _: self.moveSnake(0, -1))
        self._master.bind('<Down>', lambda _: self.moveSnake(1, 0))
        self._master.bind('<Up>', lambda _: self.moveSnake(-1, 0))
        self._master.bind('<r>', lambda _: self.load_game())
        self._master.bind('<q>', lambda _: window.destroy())

        # LOADER GAME
        self.load_game()

    def load_game(self):
        """ Sætter spillet op """
        self._master.title(self._title)
        self.load_board()
        self.re_draw()

    def re_draw(self):
        """ Opdaterer boardet """
        self._c.delete()
        self.draw_board()

    def load_board(self):
        """ starter boardet """
        self.snakeBoard = \
            [[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 1, 2, 3, 4, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
             ]
        # SnakeFood.placeFood(self, self.snakeBoard)
        #self._headCol, self._headRow = Movement.findSnakeHead(self)
        self.findSnakeHead()


    def draw_board(self):
        """ Kalder draw_cells for hver celle """
        self.rows = len(self.snakeBoard)
        self.cols = len(self.snakeBoard[0])

        for self.row in range(self.rows):
            for self.col in range(self.cols):
                self.draw_cells(self.row, self.col, self.snakeBoard)
                # print(str(self.row) + " " + str(self.col))


    def draw_cells(self, row, col, snakeBoard):
        """ Tegner seperat cellerne ud fra snakeBoardet """
        self.margen = 5
        self.cellsize = 30
        self.x1 = self.margen + col * self.cellsize  # x1
        self.x2 = self.x1 + self.cellsize  # x2
        self.y1 = self.margen + row * self.cellsize  # y1
        self.y2 = self.y1 + self.cellsize  # y2

        self._c.create_rectangle(self.x1, self.y1, self.x2, self.y2, fill="white", outline="black")

        if snakeBoard[row][col] > 0:
            self._c.create_oval(self.x1, self.y1, self.x2, self.y2, fill="blue")
        elif snakeBoard[row][col] < 0:
            self._c.create_oval(self.x1, self.y1, self.x2, self.y2, fill="red")

        self.removeTail()

    def findSnakeHead(self):
        """ Finder hovedet af slangen via den maksimale værdi """
        self.rows = len(self.snakeBoard)
        self.cols = len(self.snakeBoard[0])

        for self.row in range(self.rows):
            for self.col in range(self.cols):
                if self.snakeBoard[self.row][self.col] > self.snakeBoard[self._headRow][self._headCol]:
                    self._headRow = self.row
                    self._headCol = self.col
        #return self._headRow, self._headCol

    def removeTail(self):
        """ Subtraherer alle tal < 0 i hele talrækken og gentegner. """
        self.rows = len(self.snakeBoard)
        self.cols = len(self.snakeBoard[0])

        for self.row in range(self.rows):
            for self.col in range(self.cols):
                if self.snakeBoard[self.row][self.col] > 0:
                    self.snakeBoard[self.row][self.col] -= 1

        self.re_draw()

    def moveSnake(self, drow, dcol):
        """ Flytter Snake i en ny retning. Tager en ny tillagt row/col værdi"""
        self._newHeadRow = self._headRow + drow
        self._newHeadCol = self._headCol + dcol

        if ((self._newHeadRow < 0) or (self._newHeadRow >= self.rows) or
                (self._newHeadCol < 0) or (self._newHeadCol >= self.cols)):
            # Løb ind i en væg
            self.gameOver()

            # Løb ind i sig selv
        elif self.snakeBoard[self._newHeadRow][self._newHeadCol] > 0:
            self.gameOver()

        else:
            print("fejl")
            self.snakeBoard[self._newHeadRow][self._newHeadCol] = self.snakeBoard[self._headRow][self._headCol] + 1

            self._headRow = self._newHeadRow
            self._headCol = self._newHeadCol

            self.removeTail()

    def gameOver(self):
        """ Slutter spillet og viser spilleren antal point opnået """
        # self._master.MessageBox.showinfo("Game Over")
        print("gameover")

        self._c.create_text(155, 155, text="Game Over!", font=("Helvetica", 32, "bold"))


if __name__ == "__main__":
    """ Kører fra starten af """
    window = tk.Tk()

    c = tk.Canvas(window, width=310, height=310)
    c.pack()
    game = SnakeGame(window, c)

    window.mainloop()