from flask import Blueprint, render_template, request, redirect, url_for, current_app, send_from_directory
from werkzeug.utils import secure_filename
from flask_login import login_user, logout_user, login_required
from sqlalchemy import desc, asc
import datetime
import os

from .models import db, Repostajes, Vehiculos

bp = Blueprint("paginas", __name__)

@bp.route('/')
def index():
    vehiculos = Vehiculos.query.all()
    repostajes = Repostajes.query.all()


    return render_template('index.html', vehiculos=vehiculos, repostajes=repostajes)

@bp.route('/repostajes')
def repostajes():
    repostajes = Repostajes.query.all()
    return render_template('repostajes.html', repostajes=repostajes)

@bp.route('/vehiculos')
def vehiculos():
    vehiculos = Vehiculos.query.all()
    #return render_template('vehiculos.html', vehiculos=vehiculos)
    return render_template('vehiculoscard.html', vehiculos=vehiculos)

@bp.route('/404')
def cuatrocerocuatro():
    return render_template('404.html')

@bp.route('/help')
def help():
    return render_template('help.html')

@bp.route('/account')
@login_required
def account():
    return render_template('account.html')

"""
@bp.route('/repostaje/<int:repostaje_id>')
def repostaje(repostaje_id):
    repostaje = Repostajes.query.get_or_404(repostaje_id)
    vehiculo = Vehiculos.query.get_or_404(repostaje.vehiculo_id)

    return render_template('repostaje.html', repostaje=repostaje, vehiculo=vehiculo)
"""

@bp.route('/add_repostaje', methods=['GET', 'POST'])
@login_required
def add_repostaje():
    if request.method == 'POST':
        fecha = datetime.date.fromisoformat(request.form['fecha'])
        vehiculo_id = request.form['vehiculo_id']
        kms = request.form['kms']
        litros = request.form['litros']
        importe = request.form['importe']
        dtoing = request.form.get('dtoing')

        if dtoing:
            descuento = int(importe) * 0.03 # Aplico el descuento de ING
        else :
            descuento = 0 # no se marcó la casilla de descuento ING

        totalcondto = float(importe) - descuento
        precioxlitro = totalcondto / float(litros)

        # lee todos los repostajes del vehículo
        #repostajes = Repostajes.query.filter_by(vehiculo_id=vehiculo_id).all()
        repostajes = Repostajes.query.filter_by(vehiculo_id=vehiculo_id).order_by(Repostajes.fecha.desc()).first()

        #for i in repostajes:
        #    print("add_repostaje: ", i.fecha, i.kms)
        kmsrecorridos = int(kms)-int(repostajes.kms)

        if kmsrecorridos > 0:
            consumo = float(litros)*100/kmsrecorridos

            print("add_repostaje kms recorridos: ", kmsrecorridos, " consumo: ", consumo)


        new_repostaje = Repostajes(fecha=fecha, vehiculo_id=vehiculo_id, kms=kms, litros=litros, importe=totalcondto, descuento=descuento, precioxlitro=precioxlitro, kmsrecorridos=kmsrecorridos, consumo=consumo)
        db.session.add(new_repostaje)
        db.session.commit()
        
        return redirect(url_for('paginas.vehiculo', vehiculo_id=vehiculo_id))
    
    vehiculos = Vehiculos.query.all()


    return render_template('add_repostaje.html', vehiculos=vehiculos)

@bp.route('/edit_repostaje/<int:repostaje_id>', methods=['GET', 'POST'])
@login_required
def edit_repostaje(repostaje_id):
    repostaje = Repostajes.query.get_or_404(repostaje_id)
    vehiculos = Vehiculos.query.all()
    if request.method == 'POST':
        repostaje.fecha = request.form['fecha']
        repostaje.vehiculo_id = request.form['vehiculo_id']

        repostaje.kms = request.form['kms']
        repostaje.litros = request.form['litros']
        repostaje.importe = request.form['importe']
        
        db.session.commit()
        return redirect(url_for('paginas.repostaje', repostaje_id=repostaje.id))
    
    vehiculos = Vehiculos.query.all()

    return render_template('edit_repostaje.html', repostaje=repostaje, vehiculos=vehiculos)

@bp.route('/add_vehiculo', methods=['GET', 'POST'])
@login_required
def add_vehiculo():
    if request.method == 'POST':

        marca = request.form['marca']
        modelo = request.form['modelo']
        matricula = request.form['matricula']
        
        # Verificar que el campo 'cover_image' está en request.files
        if 'foto' not in request.files:
            return "No file part in the request", 400
        
        foto = request.files['foto']

        # Verificar que se ha seleccionado un archivo

        if foto.filename == '':
            return "No selected file", 400
        
        if foto:
            image_filename = secure_filename(foto.filename)
            foto.save(os.path.join(current_app.config['UPLOAD_FOLDER'], image_filename))
        else:
            image_filename = None

        new_vehiculo = Vehiculos(marca=marca, modelo=modelo, matricula=matricula, foto=image_filename)
        db.session.add(new_vehiculo)
        db.session.commit()
        
        return redirect(url_for('paginas.index'))
    
    return render_template('add_vehiculo.html')

@bp.route('/edit_vehiculo/<int:vehiculo_id>', methods=['GET', 'POST'])
@login_required
def edit_vehiculo(vehiculo_id):
    vehiculo = Vehiculos.query.get_or_404(vehiculo_id)
    if request.method == 'POST':
        vehiculo.marca = request.form['marca']
        vehiculo.modelo = request.form['modelo']
        vehiculo.matricula = request.form['matricula']
        
        if 'foto' in request.files:
            foto = request.files['foto']
            if foto.filename != '':
                image_filename = secure_filename(foto.filename)
                foto.save(os.path.join(current_app.config['UPLOAD_FOLDER'], image_filename))
                vehiculo.foto = image_filename
        
        db.session.commit()
        return redirect(url_for('paginas.vehiculo', vehiculo_id=vehiculo.id))
    
    return render_template('edit_vehiculo.html', vehiculo=vehiculo)

@bp.route('/vehiculo/<int:vehiculo_id>')
def vehiculo(vehiculo_id):
    vehiculo = Vehiculos.query.get_or_404(vehiculo_id)
    repostajes = Repostajes.query.filter_by(vehiculo_id=vehiculo_id).all()
    return render_template('vehiculo.html', vehiculo=vehiculo, repostajes=repostajes)

@bp.route('/uploads/<filename>')
def uploaded_file(filename):
    return send_from_directory(current_app.config['UPLOAD_FOLDER'], filename)

@bp.route('/searchvehiculo')
def searchvehiculo():
    query = request.args.get('query', '')
    if query:
        vehiculos = Vehiculos.query.filter(vehiculo.name.contains(query)).all()
    else:
        vehiculos = []
    return render_template('searchvehiculo.html', query=query, vehiculos=vehiculos)

@bp.route('/consumo')
@login_required
def consumo():
    vehiculos = Vehiculos.query.all()

    for vehiculo in vehiculos:
        kmsanterior = 0
        print("Consumo. Tratando vehículo '", vehiculo.matricula,"'")
        repostajes = Repostajes.query.filter_by(vehiculo_id=vehiculo.id).order_by(Repostajes.fecha.asc()).all()

        for repostaje in repostajes:
            kmsrecorridos = repostaje.kms - kmsanterior
            if kmsrecorridos > 0:
                consumo = repostaje.litros*100/kmsrecorridos

            print("Consumo: kms anteriores -> ", kmsanterior, " kms actuales ->", repostaje.kms, " recorridos ->", kmsrecorridos, " consumo ->", consumo)
            kmsanterior = repostaje.kms

            repostaje.kmsrecorridos = kmsrecorridos
            repostaje.consumo = consumo
            
            db.session.commit()


    return render_template('consumo.html', repostajes=repostajes)