import os
from datetime import datetime
from config import db
from models.meters import Meter1, Meter2, Meter3

def get_timestamp():
    return datetime.now().strftime(("%Y-%m-%d %H:%M:%S"))

# The initialisation data for the database
READINGS1 =[ {"time":datetime.now(), "reading": 0} ]
READINGS2 =[ {"time":datetime.now(), "reading": 0} ]
READINGS3 =[ {"time":datetime.now(), "reading": 0} ]

# Deletes the database if it already exists
if os.path.exists("readings.db"):
    os.remove("readings.db")
    
# Creates the database
db.create_all()
    
# Iterates over the READINGS1 structure and populates the database
for info in READINGS1:
    r = Meter1(time=info.get("time"), reading=info.get("reading"))
    db.session.add(r)
    
# Iterates over the READINGS2 structure and populates the datebase
for info in READINGS2:
    r = Meter2(time=info.get("time"), reading=info.get("reading"))
    db.session.add(r)

# Iterates over the READINGS3 structure and populates the datebase
for info in READINGS3:
    r = Meter3(time=info.get("time"), reading=info.get("reading"))
    db.session.add(r)
    
db.session.commit()