#!/usr/bin/env python
import sys
if sys.version_info[0] >= 3:
    import PySimpleGUI as sg
else:
    import PySimpleGUI27 as sg
import random
import time
from sys import exit as exit


"""
    Pong code supplied by Daniel Young (Neonzz)
    Modified.  Original code: https://www.pygame.org/project/3649/5739
"""

class Ball:
    def __init__(self, canvas, bat, bat2, color):
        self.canvas = canvas
        self.bat = bat
        self.bat2 = bat2
        self.playerScore = 0
        self.player1Score = 0
        self.drawP1 = None
        self.drawP = None
        self.id = self.canvas.create_oval(10, 10, 35, 35, fill=color)
        self.canvas.move(self.id, 327, 220)
        self.canvas_height = self.canvas.winfo_height()
        self.canvas_width = self.canvas.winfo_width()
        self.x = random.choice([-2.5, 2.5])
        self.y = -2.5

    def checkwin(self):
        winner = None
        if self.playerScore >= 10:
            winner = 'Player left wins'
        if self.player1Score >= 10:
            winner = 'Player Right'
        return winner


    def updatep(self, val):
        self.canvas.delete(self.drawP)
        self.drawP = self.canvas.create_text(170, 50, font=('freesansbold.ttf', 40), text=str(val), fill='white')

    def updatep1(self, val):
        self.canvas.delete(self.drawP1)
        self.drawP1 = self.canvas.create_text(550, 50, font=('freesansbold.ttf', 40), text=str(val), fill='white')

    def hit_bat(self, pos):
        bat_pos = self.canvas.coords(self.bat.id)
        if pos[2] >= bat_pos[0] and pos[0] <= bat_pos[2]:
            if pos[3] >= bat_pos[1] and pos[3] <= bat_pos[3]:
                return True
            return False

    def hit_bat2(self, pos):
        bat_pos = self.canvas.coords(self.bat2.id)
        if pos[2] >= bat_pos[0] and pos[0] <= bat_pos[2]:
            if pos[3] >= bat_pos[1] and pos[3] <= bat_pos[3]:
                return True
            return False

    def draw(self):
        self.canvas.move(self.id, self.x, self.y)
        pos = self.canvas.coords(self.id)
        if pos[1] <= 0:
            self.y = 4
        if pos[3] >= self.canvas_height:
            self.y = -4
        if pos[0] <= 0:
            self.player1Score += 1
            self.canvas.move(self.id, 327, 220)
            self.x = 4
            self.updatep1(self.player1Score)
        if pos[2] >= self.canvas_width:
            self.playerScore += 1
            self.canvas.move(self.id, -327, -220)
            self.x = -4
            self.updatep(self.playerScore)
        if self.hit_bat(pos):
            self.x = 4
        if self.hit_bat2(pos):
            self.x = -4


class pongbat():
    def __init__(self, canvas, color):
        self.canvas = canvas
        self.id = self.canvas.create_rectangle(40, 200, 25, 310, fill=color)
        self.canvas_height = self.canvas.winfo_height()
        self.canvas_width = self.canvas.winfo_width()
        self.y = 0

    def up(self, evt):
        self.y = -5

    def down(self, evt):
        self.y = 5

    def draw(self):
        self.canvas.move(self.id, 0, self.y)
        pos = self.canvas.coords(self.id)
        if pos[1] <= 0:
            self.y = 0
        if pos[3] >= 400:
            self.y = 0


class pongbat2():
    def __init__(self, canvas, color):
        self.canvas = canvas
        self.id = self.canvas.create_rectangle(680, 200, 660, 310, fill=color)
        self.canvas_height = self.canvas.winfo_height()
        self.canvas_width = self.canvas.winfo_width()
        self.y = 0

    def up(self, evt):
        self.y = -5

    def down(self, evt):
        self.y = 5

    def draw(self):
        self.canvas.move(self.id, 0, self.y)
        pos = self.canvas.coords(self.id)
        if pos[1] <= 0:
            self.y = 0
        if pos[3] >= 400:
            self.y = 0


def pong():
    # ------------- Define GUI layout -------------
    layout = [[sg.Canvas(size=(700, 400), background_color='black', key='canvas')],
              [sg.T(''), sg.ReadButton('Quit')]]
    # ------------- Create window -------------
    window = sg.Window('The Classic Game of Pong', return_keyboard_events=True).Layout(layout).Finalize()
    # window.Finalize()                  # TODO Replace with call to window.Finalize once code released

    # ------------- Get the tkinter Canvas we're drawing on -------------
    canvas = window.FindElement('canvas').TKCanvas

    # ------------- Create line down center, the bats and ball -------------
    canvas.create_line(350, 0, 350, 400, fill='white')
    bat1 = pongbat(canvas, 'white')
    bat2 = pongbat2(canvas, 'white')
    ball1 = Ball(canvas, bat1, bat2, 'green')

    # ------------- Event Loop -------------
    while True:
        # ------------- Draw ball and bats -------------
        ball1.draw()
        bat1.draw()
        bat2.draw()

        # ------------- Read the form, get keypresses -------------
        event, values = window.ReadNonBlocking()
        # ------------- If quit  -------------
        if event is None and values is None or event == 'Quit':
            exit(69)
        # ------------- Keypresses -------------
        if event is not None:
            if event.startswith('Up'):
                bat2.up(2)
            elif event.startswith('Down'):
                bat2.down(2)
            elif event == 'w':
                bat1.up(1)
            elif event == 's':
                bat1.down(1)

        if ball1.checkwin():
            sg.Popup('Game Over', ball1.checkwin() + ' won!!')
            break


        # ------------- Bottom of loop, delay between animations -------------
        # time.sleep(.01)
        canvas.after(10)

if __name__ == '__main__':
    pong()