from django.contrib.auth import authenticate, login, logout
from django.contrib.auth.decorators import login_required
from django.shortcuts import render, redirect
from .models import *
# Create your views here.
def index(request):
    return render(request,'app/index.html')

def teachers(request):
    teachers = Teacher.objects.all()
    return render(request,'app/teachers.html', {'teachers': teachers})

def students(request):
    students = Student.objects.all()
    return render(request,'app/students.html', {'students': students})

def departments(request):
    departments = Departments.objects.all()
    return render(request,'app/departments.html', {'departments': departments})

def attendance(request):
    attendance = Attendance.objects.all()
    return render(request,'app/attendance.html', {'attendance': attendance})

def login_form(request):
    return render(request,'app/login_form.html')

def login_action(request):
    # authenticte the user
    username = request.POST.get('username')
    password = request.POST.get('password')

    user = authenticate(request, username=username, password=password)

    if user is not None:
        login(request,user)
        if user.appuser.user_type == 'TEACHER':
            return redirect('/teacher_dashboard/')
        else:
            return redirect('/student_dashboard/')
    else:
        return redirect('/login_form/')


def logout_action(request):
#logout here
    logout(request)

    return redirect('/')


def student_register_form(request):
    return render(request,'app/student_register_form.html')


def student_register_action(request):
    # authenticte the user
    username = request.POST.get('username')
    password = request.POST.get('password')
    first_name = request.POST.get('first_name')
    last_name = request.POST.get('last_name')
    email = request.POST.get('email')
    sem = request.POST.get('sem')
    dept = request.POST.get('dept')


    user = User.objects.create_user(
            username=username,
            first_name=first_name,
            last_name=last_name,
            password=password,
            email=email)

    app_user = AppUser.objects.create(
            user_type='STUDENT',
            user=user)

    student = Student.objects.create(
            app_user=app_user,
            sem=sem,
            department=dept)


    return redirect('/students/')


def teacher_register_form(request):
    return render(request,'app/teacher_register_form.html')


def teacher_register_action(request):
    # authenticte the user
    username = request.POST.get('username')
    password = request.POST.get('password')
    first_name = request.POST.get('first_name')
    last_name = request.POST.get('last_name')
    email = request.POST.get('email')
    specialization = request.POST.get('specialization')
    dept = request.POST.get('dept')

    user = User.objects.create_user(
            username=username,
            first_name=first_name,
            last_name=last_name,
            password=password,
            email=email)

    app_user = AppUser.objects.create(
            user_type='TEACHER',
            user=user)

    teacher = Teacher.objects.create(
            app_user=app_user,
            specialization=specialization,
            department=dept)

    return redirect('/teachers/')

@login_required(login_url='/login_form/')
def teacher_dashboard(request):
    if request.user.appuser.user_type != 'TEACHER':
        return redirect('/')
    return render(request,'app/teacher_dashboard.html')

@login_required(login_url='/login_form/')
def student_dashboard(request):
    if request.user.appuser.user_type != 'STUDENT':
        return redirect('/')
    return render(request,'app/student_dashboard.html')



def student_info(request):
    return render(request,'app/student_info.html')

def student_info_action(request):
    return redirect('/student_info/')


def std_attendance(request):
    return render(request,'app/std_attendance.html')

def std_attendance_action(request):
    return redirect('/std_attendance/')