import time
from machine import I2C, Pin, SPI
from mfrc522 import MFRC522 
from keypad import Keypad
from pico_i2c_lcd import I2cLcd
from lcd_api import LcdApi
from dht import DHT22

i2c = I2C( 0 , sda = Pin(0) , scl = Pin(1) , freq = 400000)
adress = i2c.scan()[0]
lcd = I2cLcd(i2c , adress , 4 , 20 )

dht = DHT22(Pin(19))
a12 =Pin(18, Pin.OUT)

buzzer= Pin(2, Pin.OUT) #set buzzer to GP16
buzzer.value(0)
true = Pin(8, Pin.OUT)  #set Green LED to GP15
false = Pin(9, Pin.OUT) #set Red LED to GP14
sck = Pin(6, Pin.OUT)    #set RFID sck to GP6
mosi = Pin(7, Pin.OUT)   #set RFID mosi to GP7
miso = Pin(4, Pin.OUT)   #set RFID miso to GP4 
sda = Pin(5, Pin.OUT)    #set RFID sda to GP5 
rst = Pin(3, Pin.OUT)   #set RFID rst to GP18
spi = SPI(0, baudrate=100000, polarity=0, phase=0, sck=sck, mosi=mosi, miso=miso) #initial SPI 
card1 = "0xb329f769" #change this value to match your testing RFID card 1
card2 = "0xb3fa5c30" #change this value to match your testing RFID card 2

lcd.move_to(0 , 0)
lcd.putstr("Andy GT *****")
time.sleep(2)
lcd.move_to(0 , 1)
lcd.putstr("25.12.2024")
time.sleep(2)
lcd.clear()
#lcd.backlight_off()
lcd.move_to(0 , 1)
lcd.putstr("Raspberry Pi Pico ")
time.sleep(2)
lcd.clear()

# Konfiguration des Passwortes 
secretCode = '1234'
geschlossen = True  # Status gesperrt setzen
inbuffer = "----"  # Reihenfolge der Tastenschläge speichern



def keyPressed(keyValue):
    global geschlossen, inbuffer  # Verwendung globaler Variablen

    if geschlossen:
        if keyValue == '#':  # Eingabe nach PW um zu entsperren
            if inbuffer == secretCode:  # Wenn Code richtig ist
                geschlossen = False
                lcd.clear()
                lcd.move_to(0 , 0)
                lcd.putstr("Richtig, Auf")
                print(" - Richtig, öffnen")
                buzzer.value(1)
                a12.on()
                #servo.max()
                time.sleep(2)
                #isLocked = True
                buzzer.value(0)
                a12.off()
                lcd.clear()
                #servo.mid()
                
                dht.measure()
                temp = dht.temperature()
                hum = dht.humidity()
                print("Temperature: {}°C   Humidity: {:.0f}% ".format(temp, hum))

                lcd.clear()
                lcd.putstr('Temperatur: ' + str(temp) + " C")
                lcd.move_to(0,1)
                lcd.putstr('Feuchte: ' + str(hum) + "%    ")
                
                

            else:
                lcd.clear()
                lcd.move_to(0 , 0)
                lcd.putstr("Falsche Eingabe")
                print(" - Falsche Eingabe")
                time.sleep(2)
                lcd.move_to(0 , 1)
                lcd.putstr("Code eingeben")
                
            inbuffer = "----"  # Puffer zurücksentzen
        else:  # Bei Falscheingabe, neuer Versuch
            inbuffer = inbuffer[1:] + keyValue  # Verschiebung Puffer für neue Eingabe
            print(keyValue, end="")  # Betätigte Tasten anzeigen
    elif keyValue == '*':  # Wenn entsperrt ist, "*" drücken um erneut zu sperren
        geschlossen = True
        lcd.clear()
        lcd.move_to(0 , 0)
        lcd.putstr("Warte auf ")
        lcd.move_to(0 , 1)
        lcd.putstr("Eingabe")
        print("Warte auf Eingabe")
        #servo.mid()

# Konfigurieren der Tastatur mit den richtigen Pins und der Rückruffunktion
kp = Keypad(rows=(Pin(10), Pin(11), Pin(12), Pin(13)),
            columns=(Pin(14), Pin(15), Pin(16), Pin(17)),
            callback=keyPressed)

#Erststatusanzeige
lcd.move_to(0 , 0)
lcd.putstr("Code eingeben   ")
print("Code eingeben")

while True:
    
                
    dht.measure()
    temp = dht.temperature()
    hum = dht.humidity()
    print("Temperature: {}°C   Humidity: {:.0f}% ".format(temp, hum))

    
    lcd.putstr('Temperatur: ' + str(temp) + " C")
    lcd.move_to(0,1)
    lcd.putstr('Feuchte: ' + str(hum) + "%    ")
            
    
    
    rdr = MFRC522(spi, sda, rst) #Initialiesiere Kartenleser
    (stat, tag_type) = rdr.request(rdr.REQIDL) #Lese die Kartenidentnummer
    if stat == rdr.OK:
        (stat, raw_uid) = rdr.anticoll()
        if stat == rdr.OK:
            uid = ("0x%02x%02x%02x%02x" % (raw_uid[0], raw_uid[1], raw_uid[2], raw_uid[3]))
            print(uid)
            if uid == card1: #if ID matches card 1, buzzer beep once, turn on Green LED
                lcd.clear()
                lcd.move_to(0 , 0)
                lcd.putstr("Chip 1 erkannt")
                print("card 1 detected!")
                buzzer.value(1)
                time.sleep(0.3)
                buzzer.value(0)
                true.value(1)
                a12.on()
                time.sleep(1)
                true.value(0)
                a12.off()
                time.sleep(1)
                lcd.clear()
                
                dht.measure()
                temp = dht.temperature()
                hum = dht.humidity()
                print("Temperature: {}°C   Humidity: {:.0f}% ".format(temp, hum))

                lcd.clear()
                lcd.putstr('Temperatur: ' + str(temp) + " C")
                lcd.move_to(0,1)
                lcd.putstr('Feuchte: ' + str(hum) + "%")
            
            elif uid == card2:
                lcd.clear()
                lcd.move_to(0 , 0)
                lcd.putstr("Chip 2 erkannt")
                print("card 2 detected!")  #if ID matches card 2, buzzer beep twice, turn on Green LED
                buzzer.value(1)
                time.sleep(0.3)
                buzzer.value(0)
                time.sleep(0.3)
                buzzer.value(1)
                time.sleep(0.3)
                buzzer.value(0)
                a12.on()
                true.value(1)
                time.sleep(2)
                a12.off()
                true.value(0)
                time.sleep(1)
                
                lcd.clear()
                
                dht.measure()
                temp = dht.temperature()
                hum = dht.humidity()
                print("Temperature: {}°C   Humidity: {:.0f}% ".format(temp, hum))

                lcd.clear()
                lcd.putstr('Temperatur: ' + str(temp) + " C")
                lcd.move_to(0,1)
                lcd.putstr('Feuchte: ' + str(hum) + "%")
            
                
                
            else:  #if ID doesn't match any card, long beep, turn on Red LED
                print("invalid card!")
                buzzer.value(1)
                time.sleep(1)
                buzzer.value(0)
                false.value(1)
                time.sleep(0.1)
                false.value(0)
                time.sleep(0.1)
                false.value(1)
                time.sleep(0.1)
                false.value(0)
                time.sleep(0.1)
                false.value(1)
                time.sleep(0.1)
                false.value(0)
                time.sleep(1)