#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
import _thread
import socket
import pygame
import math
import random
import numpy as np
from pygame.locals import *
import time

WIDTH=160
HEIGHT=24*6
PIXELSIZE=4 #For Simulator Display
UDPPORT=2323
DEBUG=True
BITSPERPIXEL=2




class FlipdotSim():
    def __init__(self,
                 imageSize = (160,48), #80,16
                 pixelSize = 10,
                 udpPort = 2323,
                 bitsperpixel=1):
        self.imageSize=imageSize
        self.udpPort = udpPort
        self.bitsperpixel=bitsperpixel
        self.flipdotMatrixSimulatorWidget = FlipdotMatrixSimulatorWidget(imageSize, pixelSize, bitsperpixel) #comment out if no simulator needed
        self.udpHostSocket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
        self.udpHostSocket.bind(("", self.udpPort))

        self.time_receivedpacket=0

        self.bitsneeded=self.imageSize[0]*self.imageSize[1]*self.bitsperpixel


    def run(self):
        self.RunServer()


    def RunServer(self):
        try:
            while True:
                rawData = self.udpHostSocket.recv(4096*2)
                _fps=1/(time.time()-self.time_receivedpacket)
                self.time_receivedpacket=time.time()

                self.flipdotMatrixSimulatorWidget.showFromRawData(rawData) #send to simulator display

                calctime=time.time()-self.time_receivedpacket
                print(str(round(calctime,4))+"s, maxFPS="+str(round(1/calctime,2))+", actual FPS="+str(round(_fps,2))) #calculate time it took for calculation and drawing

        finally:
            self.udpHostSocket.close()

class FlipdotMatrixSimulatorWidget():
    BLACKCOLOR = 0
    WHITECOLOR = 1

    def __init__(self,
                 imageSize = (160,48),
                 pixelSize = 4,
                 bitsperpixel = 1):
        self.imageSize = imageSize
        self.pixelSize = pixelSize

        pygame.init()
        self.screen = pygame.display.set_mode((imageSize[0]*pixelSize, imageSize[1]*pixelSize))

        self.screen.fill((0,0,0))
        self.pixelsurface=None
        _thread.start_new_thread(self.watchCloseThread, ())

        self.bitsperpixel=bitsperpixel

        minimumbrightness=32
        self.colorTable=[]
        for i in range(pow(2,self.bitsperpixel)):
            brightness=i/pow(2,self.bitsperpixel)
            self.colorTable.append( ( int( (255-minimumbrightness)*brightness+minimumbrightness) , int(127*brightness+ minimumbrightness/2), int(minimumbrightness/4) ) )



    def watchCloseThread(self):
        while True:
            for event in pygame.event.get():
                if event.type in (QUIT, QUIT):
                    import os
                    os.kill(os.getpid(), 9)
            pygame.time.delay(500)

    def showFromRawData(self, rawData):
        x=0 #pixel x position
        y=0 #pixel y position
        bitshifts=[x*self.bitsperpixel for x in range(int(8/self.bitsperpixel))]
        bitmask=int('00000011', 2)

        for cbyte in rawData:
            for numbershifts in bitshifts:
                pixelbyte = ( cbyte & (bitmask<<numbershifts) ) >> numbershifts

                pygame.draw.circle(self.screen, self.colorTable[pixelbyte], (int(x*self.pixelSize+self.pixelSize/2), int(y*self.pixelSize+self.pixelSize/2)), int(self.pixelSize/2)) #Draw LED as filled circles

                x+=1 #next pixel
            y+=int(x/self.imageSize[0]) #next column if end of row
            x%=self.imageSize[0] #start at first column if end of row

        pygame.display.update()

if __name__ == '__main__':
    FlipdotSim(imageSize=(WIDTH,HEIGHT), pixelSize = PIXELSIZE, udpPort=UDPPORT, bitsperpixel=BITSPERPIXEL).run()