from django.shortcuts import render
from django.contrib.auth import authenticate, login, logout
from django.contrib.auth.decorators import login_required
from .admin import PyrosUserCreationForm

LOGGED_PAGE = "dashboard/home.html"

def home(request):
    '''
        Initial login view when coming on the website
    '''
    if request.user.is_authenticated():
        return(render(request, LOGGED_PAGE, {'message' : "You are already connected", 'success' : True}))
    return(render(request, "user_manager/home_login.html"))

def create_user(request):
    '''
        View called to open the user creation form
    '''
    if request.user.is_authenticated():
        return(render(request, LOGGED_PAGE, {'message' : "You are already connected", 'success' : True}))
    form = PyrosUserCreationForm()
    return (render(request, "user_manager/home_user_creation.html", locals()))

def user_signup_validation(request):
    '''
        View called to validate the user creation (form submitted)
    '''
    if request.user.is_authenticated():
        return(render(request, LOGGED_PAGE, {'message' : "You are already connected", 'success' : True}))
    form = PyrosUserCreationForm(request.POST)
    if request.POST:
        if form.is_valid():
            form.save()
            message = "Account creation successful ! Login to continue"
            success = True
            return(render(request, "user_manager/home_login.html", locals()))
        else:
            message = "One or more fields contain errors. Please try again"

    else:
        message = "The system encountered an error. Please try again"

    error = True
    return (render(request, "user_manager/home_user_creation.html", locals()))

def login_validation(request):
    '''
        View called when the user log in (form submitted)
    '''
    if request.user.is_authenticated():
        return(render(request, LOGGED_PAGE, {'message' : "You are already connected", 'success' : True}))
    username = password = ''
    if request.POST:
        email = request.POST.get('email')
        password = request.POST.get('password')
        user = authenticate(username=email, password=password)
        if user is not None:
            if user.is_active:
                login(request, user)
                request.session['user'] = email
                message = "You have successfully logged in, Welcome !"
                success = True
                return(render(request, LOGGED_PAGE, locals()))
            else:
                message = "Your account is not active, please contact the site administrator."
        else:
            message = "Your email and/or password were incorrect."
    else:
        message = "An unexpected error has occurred"
    error = True
    return(render(request, "user_manager/home_login.html", locals()))

@login_required
def profile(request):
    '''
        View called to see the current user profile
    '''
    return(render(request, "user_manager/profile.html", locals()))

@login_required
def user_logout(request):
    '''
        View called to log out. Redirects on login page.
    '''

    logout(request)
    message = "Logout successful !"
    success = True
    return(render(request, "user_manager/home_login.html", locals()))