import gradio as gr
import tensorflow as tf
import numpy as np
from huggingface_hub import hf_hub_download

# Function to load model from H5 file
def load_model_from_hub(repo_id, filename):
    model_path = hf_hub_download(repo_id=repo_id, filename=filename)
    return tf.keras.models.load_model(model_path)

# Load models from Hugging Face Hub
model1 = load_model_from_hub("arsath-sm/real-fake-face-detection-model1", "face_detection_model1.h5")
model2 = load_model_from_hub("arsath-sm/real-fake-face-detection-model2", "face_detection_model2.h5")

def preprocess_image(image):
    img = tf.convert_to_tensor(image)
    img = tf.image.resize(img, (150, 150))
    img = img / 255.0
    return tf.expand_dims(img, 0)

def predict_image(image):
    preprocessed_image = preprocess_image(image)
    
    # Make predictions using both models
    pred1 = model1.predict(preprocessed_image)[0][0]
    pred2 = model2.predict(preprocessed_image)[0][0]
    
    # Average the predictions
    avg_pred = (pred1 + pred2) / 2
    result = "Real" if avg_pred > 0.5 else "Fake"
    confidence = avg_pred if avg_pred > 0.5 else 1 - avg_pred
    
    return f"{result} (Confidence: {confidence:.2f})"

iface = gr.Interface(
    fn=predict_image,
    inputs=gr.Image(),
    outputs="text",
    title="Real vs Fake Face Detection",
    description="Upload an image to determine if it's a real or fake face."
)

iface.launch()