import requests
import json
import configparser
from datetime import datetime, timedelta

def get_timestamps(hours_ago=1):
    """
    Calculate debut and fin timestamps for the specified number of hours ago.
    Returns timestamps in milliseconds as strings.
    fin = current time
    debut = current time - hours_ago
    """
    end_time = datetime.now()
    start_time = end_time - timedelta(hours=hours_ago)
    
    # Convert to milliseconds timestamp strings
    debut = str(int(start_time.timestamp() * 1000))
    fin = str(int(end_time.timestamp() * 1000))
    
    return debut, fin

def read_latest_data(jsonData):
    """
    Gets the latest data points from the json
    """
    return jsonData['dataProvider'][-1]  # Get the last entry

def get_data(time_range=1):
    """
    Get the data
    time_range is used to determine the time range from which data is being requested. The time range is the current time - time_range
    """
    url = config['General']['endpoint']

    cookies = {
        "selfcare": config['Cookies']['auth']
    }

    # Get timestamps for last 24 hours
    debut, fin = get_timestamps(time_range)

    data = {
        "data": "courbeDeCharge",
        "communaute": "5213",
        "appartement": "4783",
        "debut": debut,
        "fin": fin
    }

    response = requests.post(
        url,
        cookies=cookies,
        data=data,
        verify=True  # SSL verification
    )

    # Get the latest value from the response
    response_data = response.json()

    return response_data

if __name__ == "__main__":

    # Read configuration
    config = configparser.ConfigParser()
    config.read('IneraScraper.conf')

    # Get data and latest value
    latest = read_latest_data(get_data())

    print(f"Latest reading - Time: {latest['date']}, PV: {latest['pv']}kW, Grid: {latest['grd']}kW, Total: {latest['total']}kW, Autoconso: {latest['autoconso']}%")