from collections import defaultdict
from datetime import date, datetime
from decimal import Decimal

from flask import current_app, jsonify, request, url_for
from flask_login import current_user, login_required, login_user
from sqlalchemy import extract
from sqlalchemy.exc import IntegrityError

from . import api
from .common import accessible_vehicles, boolv, fail, payload, response, role_required, station_dict, user_dict, vehicle_dict
from .. import THEMES
from ..api_tokens import create_access_token
from ..extensions import db
from ..models import AppSetting, CompanySettings, FuelCard, FuelCardPolicy, FuelCardStationRule, FuelEntry, FuelStationCompany, FuelStationPoint, OrlenPrice, User, Vehicle
from ..services import POLISH_REGIONS, aggregate_ure_companies, calculate_costs, fetch_orlen_price, fetch_orlen_range, fetch_ure_stations, invoice_period
from ..station_catalog import sync_station_catalog

FUEL_TYPES = ("PB95", "PB98", "DIESEL", "LPG")

@api.post('/auth/login')
def login():
    d=payload(); user=User.query.filter_by(email=(d.get('email') or '').strip().lower()).first()
    if not user or not user.check_password(d.get('password') or '') or not user.active: return fail('Nieprawidłowy e-mail lub hasło',401)
    login_user(user); return response({'user':user_dict(user),'redirect':url_for('main.dashboard')},'Zalogowano')

@api.post('/auth/token')
def token_login():
    d = payload()
    email = (d.get('email') or d.get('username') or '').strip().lower()
    user = User.query.filter_by(email=email).first()
    if not user or not user.check_password(d.get('password') or '') or not user.active:
        return jsonify({'error':'invalid_grant','error_description':'Nieprawidłowy e-mail lub hasło'}), 401
    expires_in = int(current_app.config['API_TOKEN_MAX_AGE_SECONDS'])
    return jsonify({
        'access_token': create_access_token(user),
        'token_type': 'Bearer',
        'expires_in': expires_in,
        'user': user_dict(user),
    })

@api.get('/me')
@login_required
def me(): return response(user_dict(current_user))