from datetime import datetime
import frappe
import requests
from requests.auth import HTTPBasicAuth

def traccar_auth(ts):
    """authenticates on traccar server and returns cookies"""
    response = requests.post(
        f"http://{ts.traccar_server}:{ts.traccar_port}/api/session",
        data = {
            'email': ts.traccar_username,
            'password': frappe.utils.password.get_decrypted_password(
                'TraccarServer',
                ts.name,
                'traccar_password'
            )
        }
    )    
    if response.status_code == 200:
        return response.cookies
    else:
        frappe.throw(f"Authentication failed: {response.status_code}: {response.reason}<br />Dict ts: {ts.as_dict()}")

@frappe.whitelist()
def get_devices(doc=None):
    """fetches all devices the user has access to and stores them in Tracker Doctype
    should also be able to be called frequently to update the status"""

    # get informations for authentication on traccar server
    ts = frappe.get_last_doc('TraccarServer')

    # get all devices from traccar server
    try:
        devices = requests.get(
            f"http://{ts.traccar_server}:{ts.traccar_port}/api/devices",
            cookies = traccar_auth(ts)
        )
    except:
        frappe.throw("Could not fetch devices from traccar server")

    # Insert devices into Tracker Doctype
    for dev in devices.json():
        if not frappe.db.exists('Tracker', int(dev['id'])):
            frappe.get_doc({
                'doctype': 'Tracker',
                'portal_id': dev['id'],
                'portal_name': dev['name'],
                'unique_id': dev['uniqueId'],
                'status': dev['status'],
                'last_update': datetime.fromisoformat(dev['lastUpdate']).strftime('%Y-%m-%d %H:%M:%S'),
                'position_id': dev['positionId'],
                'group_id': dev['groupId'],
                'phone': dev['phone'],
                'model': dev['model'],
                'contact': dev['contact'],
                'categorie': dev['category'],
                'disabled': dev['disabled'],
            }).insert()

    # update db frappe
    frappe.db.commit()



def get_trips_for_device(device, start = None, end = None):
    """getches all trip for a device, stores them Trip Doctype and links them to the vehicle which is assigned to the device"""
    pass