from datetime import datetime
import frappe
import requests


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(
                'Traccar Settings',
                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_doc('Traccar Settings')

    # 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()


@frappe.whitelist()
def get_trips_for_device(device_id, start=None, end=None):
    """
    Fetches all trips for a device, stores them in Trip Doctype, and links them to the vehicle assigned to the device.
    """
    # get information for authentication on traccar server
    ts = frappe.get_doc('Traccar Settings')

    # Define default start and end datetime if not provided
    if not start:
        start = datetime.now().strftime('%Y-%m-%dT%H:%M:%SZ')  # Adjust format as required by your Traccar API
    if not end:
        end = datetime.now().strftime('%Y-%m-%dT%H:%M:%SZ')  # Adjust format as required by your Traccar API

    # get all trips from traccar server
    try:
        trips_response = requests.get(
            f"http://{ts.traccar_server}:{ts.traccar_port}/api/reports/trips",
            cookies=traccar_auth(ts),
            params={
                'deviceId': device_id,
                'from': start,
                'to': end
            }
        )
        trips_response.raise_for_status()  # This will raise an error for HTTP error codes
    except requests.HTTPError as e:
        frappe.throw(f"HTTP error occurred: {e}")
    except Exception as e:
        frappe.throw(f"Error fetching trips: {e}")

    # Insert trips into Trip Doctype
    for trip in trips_response.json():
        # Assuming 'id' is unique identifier for the trip from Traccar API response
        if not frappe.db.exists('Trip', {'portal_id': trip['id']}):
            trip_doc = frappe.get_doc({
                'doctype': 'Trip',
                'portal_id': trip['id'],
                'device_id': trip['deviceId'],
                'start': datetime.fromisoformat(trip['startTime']).strftime('%Y-%m-%d %H:%M:%S'),
                'end': datetime.fromisoformat(trip['endTime']).strftime('%Y-%m-%d %H:%M:%S'),
                'distance': trip['distance'],
                'average_speed': trip['averageSpeed'],
                'max_speed': trip['maxSpeed'],
                'spent_fuel': trip['spentFuel'],
                'start_address': trip['startAddress'],
                'end_address': trip['endAddress'],
                'duration': trip['duration'],
                'driver_unique_id': trip['driverUniqueId'],
                'vehicle': frappe.get_value('Tracker', trip['deviceId'], 'vehicle')
            })
            trip_doc.insert(ignore_permissions=True)  # Use ignore_permissions if needed

    # commit the transaction
    frappe.db.commit()