from datetime import datetime

from flask import (
    Blueprint, flash, g, redirect, render_template, request, url_for
)
from werkzeug.exceptions import abort

from app.db import get_db
from app.forms import TurnForm
from app.email import send_email
from app import app

bp = Blueprint('index', __name__)

@bp.route('/', methods=('GET', 'POST'))
def index():
    form = TurnForm()
    if form.validate_on_submit():
        station_id = request.form['station']

        db = get_db()
        db.execute(
            'UPDATE station SET last_turn = last_turn + 1 WHERE s_id=?',
            (station_id,)
        )
        turn = db.execute(
            'SELECT last_turn FROM station WHERE s_id=?',
            (station_id,)
        ).fetchone()[0]
        db.execute(
            'INSERT INTO turno (cName, cEmail, turn, timeArrival, station)'
            ' VALUES (?, ?, ?, ?, ?)',
            (form.cName.data, form.cEmail.data, turn, '{0:%H:%M}'.format(datetime.now()), station_id)
        )
        station_info = db.execute(
            'SELECT nombre_empleado, oficina FROM station WHERE s_id=?',
            (station_id,)
        ).fetchone()
        db.commit()

        flash('Your turn for {} ({}) is number {}'.format(station_info['nombre_empleado'], station_info['oficina'], turn))

        send_email('Your UPR turn',
            sender=app.config['MAIL_USERNAME'],
            recipients=[form.cEmail.data],
            text_body='Your turn for {} ({}) is number {}'.format(station_info['nombre_empleado'],
                station_info['oficina'],
                turn),
            html_body='<h3>Your turn for {} ({}) is number {}</h3>'.format(station_info['nombre_empleado'],
                station_info['oficina'],
                turn))

        return redirect(url_for('index'))

    db = get_db()
    stations = db.execute(
        'SELECT s_id, nombre_empleado, oficina FROM station'
        ' ORDER BY oficina ASC'
    ).fetchall()
    return render_template('index.html', stations=stations, form=form)