#!/usr/bin/python

from os import getrandom
from gpiozero import LED,Button
import time
import datetime
import redis
import os
import FTL.FTLog

FTL.FTLog.Write(" FTDInOut started")

#configurazione per lavorare su server redis locale
REDIS_PORT = 6379
REDIS_HOST = '127.0.0.1'
redSrv0 = redis.Redis(
    host=REDIS_HOST,
    port=REDIS_PORT,
    db=0)

#definisco directory /data
dataDir='/home/pi/data/'

#funzione per leggere e decodificare da redis
def getRedisVal(redisKey):
   if redSrv0.get(redisKey) is None:
      return redSrv0.get(redisKey)
   else:
      return redSrv0.get(redisKey).decode('utf-8')

#definisco gli elementi da utilizzare: bottone start, bottone stop, cancelletto e led
start = Button(6)
stop = Button(13)
cancello  = Button(19)
led = LED(26)

redSrv0.set('SETTINGS:LOG:STATUS',0)
redSrv0.set('SETTINGS:POWER:OFF',0)

while (1):
    if(getRedisVal('SETTINGS:LOG:STATUS') == "0"):
        if start.is_pressed:
            #basically, la stessa funzione start_log contenuta in FTServer
            currentFolder = getRedisVal('SETTINGS:FOLDER:CURRENT')
            workingDirectory = (dataDir+currentFolder)
            if workingDirectory != dataDir:
                redSrv0.set('SETTINGS:LOG:STATUS', 1)
                #data e time ora
                lastDate = datetime.datetime.now()
                #formato per data time nomefile: YYYYddmm_HMS
                format = "%Y%m%d_%H%M%S"
                #format date e time con strftime()
                nameDate = lastDate.strftime(format) + ".txt"
                redSrv0.set('RTDATA:SESSION:NAME', nameDate)
                led.on()
            else:
                redSrv0.set('SETTINGS:FOLDER:CURRENT', "Default")
                currentFolder = getRedisVal('SETTINGS:FOLDER:CURRENT')
                workingDirectory = (dataDir+currentFolder)
                os.mkdir(workingDirectory)
                redSrv0.set('SETTINGS:LOG:STATUS', 1)
                #data e time ora
                lastDate = datetime.datetime.now()
                #formato per data time nomefile: YYYYddmm_HMS
                format = "%Y%m%d_%H%M%S"
                #format date e time con strftime()
                nameDate = lastDate.strftime(format) + ".txt"
                redSrv0.set('RTDATA:SESSION:NAME', nameDate)
                led.on()

    if stop.is_pressed:
        #basically la stessa funzione stop_log contenuta in FTServer
        redSrv0.set('SETTINGS:LOG:STATUS', 0)
        redSrv0.set('SETTINGS:LOG:WAITER', 0)
        redSrv0.set('RTDATA:SESSION:NAME', "")

    if cancello.is_pressed:
        # CANCELLO CHIUSO
        redSrv0.set('RTDATA:GATE_OPEN', 0)
        
    else:
        # CANCELLO APERTO
        redSrv0.set('RTDATA:GATE_OPEN', 1)
        redSrv0.set('SETTINGS:LOG:STATUS', 0)
        redSrv0.set('SETTINGS:LOG:WAITER', 0)
        redSrv0.set('RTDATA:SESSION:NAME', "")
    
    if(getRedisVal('SETTINGS:LOG:STATUS') == "1"):
        led.on()
    else:
        led.off()

    if(getRedisVal('SETTINGS:POWER:OFF') == "1"):
        redSrv0.set('SETTINGS:POWER:OFF',0)
        redSrv0.set('SETTINGS:LOG:WAITER', 0)
        FTL.FTLog.Write(" FTDInOut requested shutdown")
        os.system("sudo shutdown -h now")
    
    time.sleep(.1)