import csv
import datetime
import random
import time

pocet_iteraci = 30
senzory = ["DHT11 vlhkost", "DHT11 teplota","HC-SR04 vzdálenost"]
with open("data.csv","a",newline="") as csvfile:
    writer = csv.writer(csvfile)
    if csvfile.tell() == 0:
        writer.writerow(["Datum a čas"] + [senzor for senzor in senzory])
    
    for i in range(pocet_iteraci):
        now = datetime.datetime.now()
        hodnoty = [
            random.randint(30,80), #vlhkost
            random.randint(20,28), #teplota
            random.randint(20,200) #vzdalenost
        ]
        writer.writerow([now.strftime("%Y-%m-%d %H:%M:%S")] + hodnoty)
        print(f"{i+1}/{pocet_iteraci}")
        time.sleep(1)