from django.shortcuts import render, redirect
from django.http import HttpResponse, Http404
from django.contrib import messages
from django.contrib.auth import login, authenticate, logout
from .forms import LoginForm, RegisterForm
import logging

def index(request):
    # from django.shortcuts import render
    # context = { "latest_plant_list": latest_plant_list }
    # return render(request, "planterteque/index.html", context)
    #template = loader.get_template("planner/index.html")
    #context = { }
    #return HttpResponse( template.render( context, request ) )
    return render(request, 'planner/index.html')

## Form action to log in
def sign_in(request):
    if request.user.is_authenticated and request.method == 'GET':
        return redirect('planner:index')      
    elif request.method == 'GET':
        form = LoginForm()
        return render(request, 'planner/login.html', {'form': form})
    elif request.method == 'POST':
        form = LoginForm(request.POST)

        if form.is_valid():
            username = form.cleaned_data['username']
            password = form.cleaned_data['password']
            user = authenticate(request,username=username,password=password)
            if user:
                logging.warning('User %s is valid', username.title())
                login(request, user)
                messages.success(request,f'Hi {username.title()}, welcome back!')
                return redirect('planner:index')
                #return index(request)
            else:
                logging.warning('User login failed')
        else:
            logging.warning('User form invalid')

        # form is not valid or user is not authenticated
        messages.error(request,f'Invalid username or password')
        return render(request,'planner/login.html',{'form': form})
    return redirect('planner:index')      

## Form action to log out
def sign_out(request):
    if (request.user.is_authenticated):
        logout(request)
        messages.success(request,f'You have been logged out.')
        return render(request, 'planner/index.html', {})
    return redirect('planner:index')      

def sign_up(request):
    if request.method == 'GET':
        form = RegisterForm()
        return render(request, 'planner/register.html', { 'form': form})
    if request.method == 'POST':
        form = RegisterForm(request.POST) 
        if form.is_valid():
            user = form.save(commit=False)
            user.username = user.username.lower()
            user.save()
            messages.success(request, 'You have signed up successfully.')
            login(request, user)
            return redirect('planner:index')
        else:
            return render(request, 'planner/register.html', {'form': form})