from django.shortcuts import render,redirect
from django.http import HttpResponse
from .models import tb_news
from django.contrib.auth.models import User,auth
from django.contrib import messages
from django.contrib.auth.decorators import login_required,permission_required

# Create your views here.



def handler404(request, exception):
    return render(request,'Mywebsite/404error.html')

def index(request):
    content = tb_news.objects.all().order_by("-id")
    return render(request,'Mywebsite/index.html',{'news':content})

@login_required(login_url='/login')
@permission_required('is_staff',login_url='/warning')
def addnews(request):
    return render(request,'Mywebsite/addnews.html')

#news_title	news_detail	news_photo	news_date
def addnewsdata(request):
    news_title = request.POST['news_title']
    news_detail = request.POST['news_detail']
    news_photo = request.FILES['news_photo']
    content = tb_news(news_title=news_title,news_detail=news_detail,news_photo=news_photo)
    content.save()
    return redirect("/contentmanager")

@login_required(login_url='/login')
@permission_required('is_staff',login_url='/warning')
def contentmanager(request):
    mydatanews = tb_news.objects.all()
    return render(request,'Mywebsite/contentnewsmanager.html',{'news':mydatanews})

def contentedit(request):
    id = request.GET['id']
    result = tb_news.objects.filter(pk=id)
    print(result)
    return render(request,'Mywebsite/contentedit.html',{'result':result})

def contentupdate(request):
    id = request.POST['id']
    news_title = request.POST['news_title'] 
    news_detail = request.POST['news_detail']

    try:
        news_photo = request.FILES['news_photo'] 
    except KeyError:
        news_photo = None

    content = tb_news.objects.get(pk=id)
    content.news_title = news_title
    content.news_detail = news_detail
    if news_photo is not None:
        content.news_photo = news_photo
    content.save()
    return redirect("/contentmanager")   


def contentdelete(request):
    id = request.POST['id']
    content = tb_news.objects.get(pk=id)
    content.delete()
    return redirect("/contentmanager")

def contentresult(request):
    id = request.GET['id']
    content = tb_news.objects.filter(pk=id)
    return render(request,'Mywebsite/result.html',{'result':content})

def regisuser(request):
    return render(request,'Mywebsite/regisuser.html')    

def regisuserdata(request):
    fname = request.POST['fname']
    lname = request.POST['lname']    
    email = request.POST['email'] 
    username = request.POST['username'] 
    password = request.POST['password'] 
    repassword = request.POST['repassword']
   
    if password == repassword:
        if User.objects.filter(username=username).exists():
            messages.error(request,"Username ซ้ำในระบบ")
            return redirect("/regisuser")
        elif User.objects.filter(email=email).exists():
            messages.error(request,"Email ซ้ำในระบบ")
            return redirect("/regisuser")
        else:
            user = User.objects.create_user(
                first_name=fname,
                last_name=lname,
                username=username,
                password=password,
                email=email
            )
            user.save()
            return redirect("/")
    else:
        messages.error(request,"Password และ Repassword ไม่ตรงกัน")
        return redirect("/regisuser")

def login(request):
    if request.user.is_authenticated:
        return redirect("/")
    return render(request,'Mywebsite/login.html')

def logincheck(request):
    username = request.POST['username'] 
    password = request.POST['password'] 
    user = auth.authenticate(username=username,password=password)
    if user is not None:
        auth.login(request,user)
        return redirect('/')
    else:
        messages.error(request,"ไม่พบผู้ใช้งานในระบบ")
        return redirect('/login')

def logoff(request):
    auth.logout(request)
    return redirect("/login")
   
   
   
   
def warning(request):
    return render(request,'Mywebsite/warning.html')