from django.shortcuts import render, redirect
from django.contrib import messages
import os
import subprocess  # To run external scripts

def login_view(request):
    if request.method == 'POST':
        username = request.POST.get('username')
        password = request.POST.get('password')
        
        if username == 'bob' and password == 'guest':
            # Set session variables
            request.session['logged_in'] = True
            request.session['username'] = username  # Optional: Store username
            messages.success(request, 'Login successful!')
            return redirect('success')  # Redirect to a success page
        else:
            messages.error(request, 'Invalid credentials!')
    
    return render(request, 'authapp/login.html')

def success_view(request):
    # Check if user is logged in via session
    if not request.session.get('logged_in'):
        messages.error(request, 'You must log in first!')
        return redirect('login')  # Redirect to login page if not authenticated
        
    # Define paths to your images (adjust as needed)
    image1 = os.path.join('..', 'a.jpg')  # Full path to a.jpg
    image2 = os.path.join('..', 'b.jpg')  # Full path to b.jpg

    try:
        result = subprocess.run(
            ["python", "../dedup.py", image1, image2, "-noansi", "-scores"],
            capture_output=True,
            text=True
        )
        script_output = result.stdout
    except Exception as e:
        script_output = f"Error: {e}"

    # Pass results to the template
    return render(request, "authapp/success.html", {
        "script_output": script_output,
    })

def home_view(request):
    return render(request, 'authapp/home.html')  # Create home.html in templates

def logout_view(request):
    # Clear session data
    request.session.flush()  # Or use del request.session['logged_in']
    messages.success(request, 'You have been logged out.')
    return redirect('login')