import cv2
import numpy as np
from time import sleep
from os import path
from subprocess import Popen, PIPE
iHeight, iWidth = 720, 1280
image = np.zeros((iHeight, iWidth, 3), np.uint8)

#home_dir = "/home/user/SmartBed/src"
home_dir = path.dirname(path.abspath(__file__))  


def make_MR_graph(image, devid, dlt):  # микрорадар 60GHz
    datadir = "log"
    lcnt = 1
    log = "%s/%s/pox_dat.R60_8266_%s" % (home_dir, datadir, devid)
    if not path.isfile(log):
        return(image)
    databuf = Popen(["tail", "-n%i" % lcnt, log], stdout=PIPE, encoding='utf-8').communicate()[0]
    line = databuf.split("\t")
    tdat = line[1].split(", ")
    ttime = line[0].split(".")[0]
    imH, imW, colors = np.shape(image) # [1080, 1920]
    c0 = (255, 0, 0)
    c1 = (0, 255, 0)
    c2 = (0, 0, 255)
    c3 = (0, 255, 255)
    cv2.putText(image, "%s:heart[%s], breath[%s], dist[%s], move[%s] [%s]" % (devid, tdat[1], tdat[3], tdat[5], tdat[7], ttime), (20, int(imH/2-50+dlt)), cv2.FONT_HERSHEY_SIMPLEX, 1, c2, 2)
    return(image)

while True:
    image = image * 0
    image = make_MR_graph(image, "01", 0)
    image = make_MR_graph(image, "02", 40)
    cv2.imshow('SmartBed', image)
    if cv2.waitKey(1) == 27:
        break
    cv2.imwrite('img.png', image)
    sleep(1)
#cam.release()
cv2.destroyAllWindows()