app.py

import torch
import gradio as gr
from diffusers import StableDiffusionPipeline

# Chemin vers ton modèle .safetensors
model_path = "/Users/arthurdufour/Documents/ComfyUI/models/checkpoints/v1-5-pruned-emaonly.safetensors"

# Charger le modèle directement (évite load_state_dict)
pipeline = StableDiffusionPipeline.from_single_file(model_path, torch_dtype=torch.float32)

# Vérification du backend MPS pour MacBook M3
device = "mps" if torch.backends.mps.is_available() else "cpu"
pipeline.to(device)

def generate_image(positive_prompt, negative_prompt, steps, seed):
    torch.mps.empty_cache()  # Nettoyage mémoire
    generator = torch.manual_seed(int(seed))

    try:
        image = pipeline(
            prompt=positive_prompt,
            negative_prompt=negative_prompt if "negative_prompt" in pipeline.__call__.__code__.co_varnames else None,
            num_inference_steps=int(steps),
            width=512,
            height=512,
            generator=generator
        ).images[0]
    except Exception as e:
        return f"Erreur : {str(e)}"

    return image

# Interface Gradio
with gr.Blocks() as demo:
    gr.Markdown("## Génération d'images Stable Diffusion (MPS)")

    with gr.Row():
        prompt_input = gr.Textbox(label="Prompt Positif", value="a horse")
        negative_input = gr.Textbox(label="Prompt Négatif", value="text, watermark")

    with gr.Row():
        steps_slider = gr.Slider(1, 50, 20, step=1, label="Nombre de Steps")
        seed_input = gr.Number(value=580029479038533, label="Seed")

    output_image = gr.Image(label="Image Générée")

    generate_button = gr.Button("Générer")
    generate_button.click(generate_image, inputs=[prompt_input, negative_input, steps_slider, seed_input], outputs=output_image)

# Lancer l'interface
demo.launch()