from django.contrib import auth, messages
from django.http import HttpResponseRedirect
from django.shortcuts import redirect, render
from django.views.generic import CreateView, FormView, RedirectView

from accounts.forms import *
from accounts.models import User


class RegisterEmployeeView(CreateView):
    model = User
    form_class = EmployeeRegistrationForm
    template_name = "accounts/employee/register.html"
    success_url = "/"

    extra_context = {"title": "Register"}

    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated:
            return HttpResponseRedirect(self.success_url)
        return super().dispatch(self.request, *args, **kwargs)

    def post(self, request, *args, **kwargs):

        form = self.form_class(data=request.POST)

        if form.is_valid():
            user = form.save(commit=False)
            password = form.cleaned_data.get("password1")
            user.set_password(password)
            user.save()
            return redirect("accounts:login")
        else:
            return render(request, "accounts/employee/register.html", {"form": form})


class RegisterEmployerView(CreateView):
    model = User
    form_class = EmployerRegistrationForm
    template_name = "accounts/employer/register.html"
    success_url = "/"

    extra_context = {"title": "Register"}

    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated:
            return HttpResponseRedirect(self.success_url)
        return super().dispatch(self.request, *args, **kwargs)

    def post(self, request, *args, **kwargs):

        form = self.form_class(data=request.POST)

        if form.is_valid():
            user = form.save(commit=False)
            password = form.cleaned_data.get("password1")
            user.set_password(password)
            user.save()
            return redirect("accounts:login")
        else:
            return render(request, "accounts/employer/register.html", {"form": form})


class LoginView(FormView):
    """
    Provides the ability to login as a user with an email and password
    """

    success_url = "/"
    form_class = UserLoginForm
    template_name = "accounts/login.html"

    extra_context = {"title": "Login"}

    def dispatch(self, request, *args, **kwargs):
        if self.request.user.is_authenticated:
            return HttpResponseRedirect(self.get_success_url())
        return super().dispatch(self.request, *args, **kwargs)

    def get_success_url(self):
        if "next" in self.request.GET and self.request.GET["next"] != "":
            return self.request.GET["next"]
        else:
            return self.success_url

    def get_form_class(self):
        return self.form_class

    def form_valid(self, form):
        auth.login(self.request, form.get_user())
        return HttpResponseRedirect(self.get_success_url())

    def form_invalid(self, form):
        """If the form is invalid, render the invalid form."""
        return self.render_to_response(self.get_context_data(form=form))


class LogoutView(RedirectView):
    """
    Provides users the ability to logout
    """

    url = "/login"

    def get(self, request, *args, **kwargs):
        auth.logout(request)
        messages.success(request, "You are now logged out")
        return super(LogoutView, self).get(request, *args, **kwargs)