app.py

import os
import requests
import gradio as gr
import uuid
import datetime
from supabase import create_client, Client
from supabase.lib.client_options import ClientOptions
import dotenv
from google.cloud import storage
import json
from pathlib import Path
import mimetypes
from workflow_handler import WanVideoWorkflow
from video_config import MODEL_FRAME_RATES, calculate_frames
import asyncio

dotenv.load_dotenv()

SCRIPT_DIR = Path(__file__).parent
CONFIG_PATH = SCRIPT_DIR / "config.json"
WORKFLOW_PATH = SCRIPT_DIR / "wani2v.json"

loras = [
  {
      #I suggest it to be a gif instead of an mp4!
      "image": "https://huggingface.co/Remade-AI/Squish/resolve/main/example_gifs/person_squish.gif",
      #This is an id you can send to your backend, obviously you can change it
      "id": "06ce6840-f976-4963-9644-b6cf7f323f90",
      #This is the title that is shown on the front end
      "title": "Squish",

      "example_prompt": "In the video, a miniature rodent is presented. The rodent is held in a person's hands. The person then presses on the rodent, causing a sq41sh squish effect. The person keeps pressing down on the rodent, further showing the sq41sh squish effect.",
  },  
  {
      "image": "https://huggingface.co/Remade-AI/Rotate/resolve/main/example_videos/chair-rotate.gif",
      "id": "4ac08cfa-841e-4aa9-9022-c3fc80fb6ef4",
      "title": "Rotate",
      "example_prompt": "The video shows an elderly Asian man's head and shoulders with blurred background, performing a r0t4tion 360 degrees rotation.",
    },
    {
      "image": "https://huggingface.co/Remade-AI/Cakeify/resolve/main/example_gifs/timberland_cakeify.gif",
      "id": "b05c1dc7-a71c-4d24-b512-4877a12dea7e",
      "title": "Cakeify",
      "example_prompt": "The video opens on a woman. A knife, held by a hand, is coming into frame and hovering over the woman. The knife then begins cutting into the woman to c4k3 cakeify it. As the knife slices the woman open, the inside of the woman is revealed to be cake with chocolate layers. The knife cuts through and the contents of the woman are revealed."
    },
      {
      "image": "https://huggingface.co/Remade-AI/Muscle/resolve/main/example_videos/man2_muscle.gif",
      "id": "3c6fd399-e558-43fa-8cd3-828300aac6f8",
      "title": "Muscle",
      "example_prompt": "A man t2k1s takes off clothes revealing a lean muscular body and shows off muscles, looking towards the camera."
    },
    {
      "image": "https://storage.googleapis.com/remade-v2/huggingface_assets/crush_example.gif",
      "id": "d8a2912b-94e4-4227-9c45-356679af34fd",
      "title": "Crush",
      "example_prompt": "The video begins with a cube saying closed source. A hydraulic press positioned above slowly descends towards the cube. Upon contact, the hydraulic press c5us4 crushes it, deforming and flattening the cube, causing the cube to collapse inward until the cube is no longer recognizable."
    },
    {
      "image": "https://storage.googleapis.com/remade-v2/huggingface_assets/decay_example.gif",
      "id": "6b6f64dc-ac14-44b2-b91c-a510cb7f7f32",
      "title": "Decay",
      "example_prompt": "The video shows a man. The d3c4y decay time-lapse begins, causing the man to change. The man is initially whole, but soon he appears to be rotting. The man slowly becomes increasingly shriveled and discolored, and eventually, the man decomposes and falls apart. The man is rotting in the center and appears to be covered in mold, completing the d3c4y decay time-lapse."
    },
    {
      "image": "https://storage.googleapis.com/remade-v2/huggingface_assets/jesus_example.gif",
      "id": "615fe106-fec4-44bb-b28b-2864cb322027",
      "title": "Jesus",
      "example_prompt": "The video begins with a smiling woman with a pink shirt looking at the camera. Then jesus appears behind her as h54g hugs jesus. Jesus embraces the woman, and they both smile in front of a park."
    },
     {
      "image": "https://storage.googleapis.com/remade-v2/huggingface_assets/inflate_example.gif",
      "id": "da2b1c34-7be8-4161-a733-e8b19a98901c",
      "title": "Inflate",
      "example_prompt": "The large, bald man rides a gray donkey, then infl4t3 inflates it, both the man and the donkey expanding into giant, inflated figures against the desert landscape."
    },
  
    
    
    
    
    
    
    
]

# Initialize Supabase client with async support
supabase: Client = create_client(
    os.getenv('SUPABASE_URL'),
    os.getenv('SUPABASE_KEY'),
   
)

def initialize_gcs():
    """Initialize Google Cloud Storage client with credentials from environment"""
    try:
        # Parse service account JSON from environment variable
        service_account_json = os.getenv('SERVICE_ACCOUNT_JSON')
        if not service_account_json:
            raise ValueError("SERVICE_ACCOUNT_JSON environment variable not found")
        
        credentials_info = json.loads(service_account_json)
        
        # Initialize storage client
        storage_client = storage.Client.from_service_account_info(credentials_info)
        print("Successfully initialized Google Cloud Storage client")
        return storage_client
    except Exception as e:
        print(f"Error initializing Google Cloud Storage: {e}")
        raise

def upload_to_gcs(file_path, content_type=None, folder='user_uploads'):
    """
    Uploads a file to Google Cloud Storage
    Args:
        file_path: Path to the file to upload
        content_type: MIME type of the file (optional)
        folder: Folder path in bucket (default: 'user_uploads')
    Returns:
        str: Public URL of the uploaded file
    """
    try:
        bucket_name = 'remade-v2'
        storage_client = initialize_gcs()
        bucket = storage_client.bucket(bucket_name)

        # Get file extension and generate unique filename
        file_extension = Path(file_path).suffix
        if not content_type:
            content_type = mimetypes.guess_type(file_path)[0] or 'application/octet-stream'
        
        # Validate file type
        valid_types = ['image/jpeg', 'image/png', 'image/gif']
        if content_type not in valid_types:
            raise ValueError("Invalid file type. Please upload a JPG, PNG or GIF image.")

        # Generate unique filename with proper path structure
        filename = f"{str(uuid.uuid4())}{file_extension}"
        file_path_in_gcs = f"{folder}/{filename}"
        
        # Create blob and set metadata
        blob = bucket.blob(file_path_in_gcs)
        blob.content_type = content_type
        blob.cache_control = 'public, max-age=31536000'
        
        print(f'Uploading file to GCS: {file_path_in_gcs}')
        
        # Upload the file
        blob.upload_from_filename(
            file_path,
            timeout=120  # 2 minute timeout
        )
        
        # Generate public URL with correct path format
        image_url = f"https://storage.googleapis.com/{bucket_name}/{file_path_in_gcs}"
        print(f"Successfully uploaded to GCS: {image_url}")
        return image_url

    except Exception as e:
        print(f"Error uploading to GCS: {e}")
        raise ValueError(f"Failed to upload image to storage: {str(e)}")

def build_lora_prompt(subject, lora_id):
    """
    Builds a standardized prompt based on the selected LoRA and subject
    """
    # Get LoRA config
    lora_config = next((lora for lora in loras if lora["id"] == lora_id), None)
    if not lora_config:
        raise ValueError(f"Invalid LoRA ID: {lora_id}")
    
    if lora_id == "06ce6840-f976-4963-9644-b6cf7f323f90":  # Squish
        return (
            f"In the video, a miniature {subject} is presented. "
            f"The {subject} is held in a person's hands. "
            f"The person then presses on the {subject}, causing a sq41sh squish effect. "
            f"The person keeps pressing down on the {subject}, further showing the sq41sh squish effect."
        )
    
    elif lora_id == "4ac08cfa-841e-4aa9-9022-c3fc80fb6ef4":  # Rotate
        return (
            f"The video shows a {subject} performing a r0t4tion 360 degrees rotation."
        )
    
    elif lora_id == "b05c1dc7-a71c-4d24-b512-4877a12dea7e":  # Cakeify
        return (
            f"The video opens on a {subject}. A knife, held by a hand, is coming into frame "
            f"and hovering over the {subject}. The knife then begins cutting into the {subject} "
            f"to c4k3 cakeify it. As the knife slices the {subject} open, the inside of the "
            f"{subject} is revealed to be cake with chocolate layers. The knife cuts through "
            f"and the contents of the {subject} are revealed."
        )
    
    elif lora_id == "3c6fd399-e558-43fa-8cd3-828300aac6f8":  # Muscle
        return (
            f"A {subject} t2k1s takes off clothes revealing a lean muscular body and shows off muscles, "
            f"looking towards the camera."
        )
    
    elif lora_id == "d8a2912b-94e4-4227-9c45-356679af34fd":  # Crush
        return (
            f"The video begins with a {subject}. A hydraulic press positioned above slowly descends "
            f"towards the {subject}. Upon contact, the hydraulic press c5us4 crushes it, deforming and "
            f"flattening the {subject}, causing the {subject} to collapse inward until the {subject} is "
            f"no longer recognizable."
        )
    
    elif lora_id == "3c6fd399-e558-43fa-8cd3-828300aac6f8":  # Decay
        return (
            f"The video shows a {subject}. The d3c4y decay time-lapse begins, causing the {subject} to change. "
            f"The {subject} is initially whole, but soon it appears to be rotting. The {subject} slowly becomes "
            f"increasingly shriveled and discolored, and eventually, the {subject} decomposes and falls apart. "
            f"The {subject} is rotting in the center and appears to be covered in mold, completing the d3c4y decay time-lapse."
        )
    
    elif lora_id == "615fe106-fec4-44bb-b28b-2864cb322027":  # Jesus
        return (
            f"The video begins with a {subject} looking at the camera. Then jesus appears behind the {subject} "
            f"as h54g hugs jesus. Jesus embraces the {subject}, and they both smile."
        )
    
    elif lora_id == "da2b1c34-7be8-4161-a733-e8b19a98901c":  # Inflate
        return (
            f"The {subject} infl4t3 inflates, expanding into a giant, inflated figure."
        )
    
    else:
        # Fallback to using the example prompt from the LoRA config
        if "example_prompt" in lora_config:
            # Replace any specific subject in the example with the user's subject
            return lora_config["example_prompt"].replace("rodent", subject).replace("woman", subject).replace("man", subject)
        else:
            raise ValueError(f"Unknown LoRA ID: {lora_id} and no example prompt available")

def poll_generation_status(generation_id):
    """Poll generation status from database"""
    try:
        # Query the database for the current status
        response = supabase.table('generations') \
            .select('*') \
            .eq('generation_id', generation_id) \
            .execute()
        
        if not response.data:
            return None
        
        return response.data[0]
    except Exception as e:
        print(f"Error polling generation status: {e}")
        raise e

async def generate_video(input_image, subject, duration, selected_index, progress=gr.Progress()):
    try:
        # Initialize workflow handler with explicit paths
        workflow_handler = WanVideoWorkflow(
            supabase,
            config_path=str(CONFIG_PATH),
            workflow_path=str(WORKFLOW_PATH)
        )
        
        # Check if the input is a URL (example image) or a file path (user upload)
        if input_image.startswith('http'):
            # It's already a URL, use it directly
            image_url = input_image
        else:
            # It's a file path, upload to GCS
            image_url = upload_to_gcs(input_image)
        
        # Map duration selection to actual seconds
        duration_mapping = {
            "Short (3s)": 3,
            "Long (5s)": 5
        }
        video_duration = duration_mapping[duration]
        
        # Get LoRA config
        lora_config = next((lora for lora in loras if lora["id"] == selected_index), None)
        if not lora_config:
            raise ValueError(f"Invalid LoRA ID: {selected_index}")

        # Generate unique ID
        generation_id = str(uuid.uuid4())

        # Update workflow
        prompt = build_lora_prompt(subject, selected_index)
        workflow_handler.update_prompt(prompt)
        workflow_handler.update_input_image(image_url)
        await workflow_handler.update_lora(lora_config)
        workflow_handler.update_length(video_duration)
        workflow_handler.update_output_name(generation_id)

        # Get final workflow
        workflow = workflow_handler.get_workflow()

        # Store generation data in Supabase
        generation_data = {
            "generation_id": generation_id,
            "user_id": "anonymous",
            "status": "queued",
            "progress": 0,
            "worker_id": None,
            "created_at": datetime.datetime.utcnow().isoformat(),
            "message": {
                "generationId": generation_id,
                "workflow": {
                    "prompt": workflow
                }
            },
            "metadata": {
                "prompt": {
                    "original": subject,
                    "enhanced": subject
                },
                "lora": {
                    "id": selected_index,
                    "strength": 1.0,
                    "name": lora_config["title"]
                },
                "workflow": "img2vid",
                "dimensions": None,
                "input_image_url": image_url,
                "video_length": {"duration": video_duration},
            },
            "error": None,
            "output_url": None,
            "batch_id": None,
            "platform": "huggingface"
        }
        
        # Remove await - the execute() method returns the response directly
        response = supabase.table('generations').insert(generation_data).execute()
        print(f"Stored generation data with ID: {generation_id}")
        
        # Return generation ID for tracking
        return generation_id
        
    except Exception as e:
        print(f"Error in generate_video: {e}")
        raise e

def update_selection(evt: gr.SelectData):
  selected_lora = loras[evt.index]
  sentence = f"Selected LoRA: {selected_lora['title']}"
  return selected_lora['id'], sentence

async def handle_generation(image_input, subject, duration, selected_index, progress=gr.Progress(track_tqdm=True)):
    try:
        if selected_index is None:
            raise gr.Error("You must select a LoRA before proceeding.")
            
        # Generate the video and get generation ID
        generation_id = await generate_video(image_input, subject, duration, selected_index)
        
        # Poll for status updates
        while True:
            generation = poll_generation_status(generation_id)
            
            if not generation:
                raise ValueError(f"Generation {generation_id} not found")
                
            # Update progress
            if 'progress' in generation:
                progress_value = generation['progress']
                progress_bar = f'<div class="progress-container"><div class="progress-bar" style="--current: {progress_value}; --total: 100;"><span class="progress-text">Processing: {progress_value}%</span></div></div><div class="refresh-warning">Please do not refresh this page while processing</div>'
                
                # Check status
                if generation['status'] == 'completed':
                    # Final yield with completed video
                    yield generation['output_url'], generation_id, gr.update(visible=False)
                    break  # Exit the loop
                elif generation['status'] == 'error':
                    raise ValueError(f"Generation failed: {generation.get('error')}")
                else:
                    # Yield progress update
                    yield None, generation_id, gr.update(value=progress_bar, visible=True)
            
            # Wait before next poll
            await asyncio.sleep(2)
            
    except Exception as e:
        print(f"Error in handle_generation: {e}")
        raise e

css = '''
#gen_btn{height: 100%}
#gen_column{align-self: stretch}
#title{text-align: center}
#title h1{font-size: 3em; display:inline-flex; align-items:center}
#title img{width: 100px; margin-right: 0.5em}
#gallery .grid-wrap{height: auto; min-height: 350px}
#gallery .gallery-item {height: 100%; width: 100%; object-fit: cover}
#lora_list{background: var(--block-background-fill);padding: 0 1em .3em; font-size: 90%}
.card_internal{display: flex;height: 100px;margin-top: .5em}
.card_internal img{margin-right: 1em}
.styler{--form-gap-width: 0px !important}
#progress{height:30px}
#progress .generating{display:none}
.progress-container {width: 100%;height: 30px;background-color: #2a2a2a;border-radius: 15px;overflow: hidden;margin-bottom: 20px;position: relative;}
.progress-bar {height: 100%;background-color: #7289DA;width: calc(var(--current) / var(--total) * 100%);transition: width 0.5s ease-in-out}
.progress-text {position: absolute;width: 100%;text-align: center;top: 50%;left: 0;transform: translateY(-50%);color: #ffffff;font-weight: bold;}
.refresh-warning {color: #ff7675;font-weight: bold;text-align: center;margin-top: 5px;}

/* Dark mode Discord styling */
.discord-banner {
    background: linear-gradient(135deg, #7289DA 0%, #5865F2 100%);
    color: #ffffff;
    padding: 20px;
    border-radius: 12px;
    margin: 15px 0;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}
.discord-banner h3 {
    margin-top: 0;
    font-size: 1.5em;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    color: #ffffff;
}
.discord-banner p {
    color: #ffffff;
    margin-bottom: 15px;
}
.discord-banner a {
    display: inline-block;
    background-color: #ffffff;
    color: #5865F2;
    text-decoration: none;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 24px;
    margin-top: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    border: none;
}
.discord-banner a:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
    background-color: #f2f2f2;
}
.discord-feature {
    background-color: #2a2a2a;
    border-left: 4px solid #7289DA;
    padding: 12px 15px;
    margin: 10px 0;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    color: #e0e0e0;
}
.discord-feature-title {
    font-weight: bold;
    color: #7289DA;
}
.discord-locked {
    opacity: 0.7;
    position: relative;
    pointer-events: none;
}
.discord-locked::after {
    content: "🔒 Discord members only";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(114,137,218,0.9);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    white-space: nowrap;
    font-size: 0.9em;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.discord-benefits-list {
    text-align: left;
    display: inline-block;
    margin: 10px 0;
    color: #ffffff;
}
.discord-benefits-list li {
    margin: 10px 0;
    position: relative;
    padding-left: 28px;
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.discord-benefits-list li::before {
    content: "✨";
    position: absolute;
    left: 0;
    color: #FFD700;
}
.locked-option {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Warning message styling */
.warning-message {
    background-color: #2a2a2a;
    border-left: 4px solid #ff7675;
    padding: 12px 15px;
    margin: 10px 0;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    color: #e0e0e0;
    font-weight: bold;
}

/* Example images and upload section styling */
.upload-section {
  display: flex;
  gap: 20px;
  margin: 20px 0;
}

.example-images-container {
  flex: 1;
}

.upload-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section-title {
  font-weight: bold;
  margin-bottom: 10px;
  color: #7289DA;
}

.example-images-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.example-image-item {
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.example-image-item:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.example-image-item.selected {
  border-color: #7289DA;
}

.upload-button {
  margin-top: 15px;
}
'''

with gr.Blocks(css=css, theme=gr.themes.Soft(primary_hue="indigo", neutral_hue="slate", text_size="lg")) as demo:
    selected_index = gr.State(None)
    current_generation_id = gr.State(None)
    
    gr.Markdown("# Remade AI - Wan 2.1 I2V effects LoRAs ")
    
    # Discord banner at the top with improved contrast
    discord_banner = gr.HTML(
        """<div class="discord-banner">
            <h3>✨ Unlock Premium Features! ✨</h3>
            <p>Join our Discord community to access longer videos, 100+ LoRAs, audio features, and faster generation times!</p>
            <a href="https://discord.gg/remade-1" target="_blank">Join Discord Now</a>
        </div>"""
    )
    
    selected_info = gr.HTML("")
    
    with gr.Row():
        with gr.Column(scale=1):
            gallery = gr.Gallery(
                [(item["image"], item["title"]) for item in loras],
                label="Select LoRA",
                allow_preview=False,
                columns=4,
                elem_id="gallery",
                show_share_button=False,
                height="350px",
                object_fit="contain"
            )
            
            # Discord feature callout for LoRAs with better contrast
            gr.HTML(
                """<div class="discord-feature">
                    <span class="discord-feature-title">✨ Discord Members:</span> Access 100+ additional LoRAs beyond these 8 samples!
                </div>"""
            )

            gr.HTML('<div class="section-description">Click an example image or upload your own</div>')
            
            # Reorganized image input section - example images and upload side by side
            with gr.Row():
                with gr.Column(scale=1):
                   
                    example_gallery = gr.Gallery(
                        [
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_1c2c6e4c-8938-4464-9355-84508bcca24e.jpg", "Old man"),
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_1f2c6ec9-823f-46d2-982f-73c494e51877.jpg", "Young woman"),
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_24d949f0-8699-4714-9c82-854e1b963063.jpg", "Puppy"),
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_af26651e-be1a-40c0-be18-c42b3bf6d211.png", "Mini toy dancers"),
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_d22a894e-a074-4742-9e23-787f001a3184.jpg", "Chair"),
                            ("https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_e6472106-4e9d-4620-b41b-a9bbe4893415.png", "Cartoon boy on bike")
                        ],
                        columns=3,
                        height="300px",
                        object_fit="cover"
                    )
                   
                
                with gr.Column(scale=1):
                    # Single image input component that will be used for both uploaded and example images
                    image_input = gr.Image(type="filepath", label="")
            
            subject = gr.Textbox(label="Describe your subject", placeholder="Cat toy")
            
            # Modified duration options - only one active option
            duration = gr.Radio(
                ["Short (3s)"],
                label="Duration",
                value="Short (3s)"
            )
            
            # Add disabled duration option with Discord callout
            gr.HTML(
                """<div class="discord-feature">
                    <span class="discord-feature-title">⏱️ Discord Members:</span> Access longer video durations (up to 10 seconds)!
                </div>"""
            )
            
            # Add disabled audio button with Discord callout
            with gr.Row():
                button = gr.Button("Generate", variant="primary", elem_id="gen_btn")
                audio_button = gr.Button("Add Audio 🔒", interactive=False)
            
        with gr.Column(scale=1):
            # Warning message about not refreshing
            warning_message = gr.HTML(
                """<div class="warning-message">
                    ⚠️ Please DO NOT refresh the page during generation. GPUs may need to warm up and there is a queue. Please be patient. Thank you!
                </div>""",
                visible=True
            )
            
            # Discord feature callout for generation speed - moved above progress bar
            gr.HTML(
                """<div class="discord-feature">
                    <span class="discord-feature-title">⚡ Discord Members:</span> Enjoy priority queue with faster generation times!
                </div>"""
            )
            
            progress_bar = gr.Markdown(elem_id="progress", visible=False)
            output = gr.Video(interactive=False, label="Output video")
    
    gallery.select(
        update_selection,
        outputs=[selected_index, selected_info]
    )
    
    # Modified function to handle example image selection
    def select_example_image(evt: gr.SelectData):
        """Handle example image selection and return image URL, description, and update image source"""
        example_images = [
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_1c2c6e4c-8938-4464-9355-84508bcca24e.jpg",
                "description": "Old man"
            },
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_1f2c6ec9-823f-46d2-982f-73c494e51877.jpg",
                "description": "Young woman"
            },
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_24d949f0-8699-4714-9c82-854e1b963063.jpg",
                "description": "Puppy"
            },
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_af26651e-be1a-40c0-be18-c42b3bf6d211.png",
                "description": "Mini toy dancers"
            },
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_d22a894e-a074-4742-9e23-787f001a3184.jpg",
                "description": "Chair"
            },
            {
                "url": "https://storage.googleapis.com/remade-v2/huggingface_assets/uploads_e6472106-4e9d-4620-b41b-a9bbe4893415.png",
                "description": "Cartoon boy on bike"
            }
        ]
        
        selected = example_images[evt.index]
        
        # Return the URL, description, and update image source to "example"
        return selected["url"], selected["description"], "example"
    
    # Connect example gallery selection to image_input and subject
    example_gallery.select(
        fn=select_example_image,
        outputs=[image_input, subject]
    )
    
    # Add a custom handler to check if inputs are valid
    def check_inputs(subject, image_input, selected_index):
        if not selected_index:
            return gr.Error("You must select a LoRA before proceeding.")
        if not subject.strip():
            return gr.Error("Please describe your subject.")
        if image_input is None:
            return gr.Error("Please upload an image or select an example image.")
        return None
    
    # Use gr.on for the button click with validation
    button.click(
        fn=check_inputs,
        inputs=[subject, image_input, selected_index],
        outputs=None,
        concurrency_limit=None
    ).success(
        fn=handle_generation,
        inputs=[image_input, subject, duration, selected_index],
        outputs=[output, current_generation_id, progress_bar]
    )
    
    # Add a click handler for the disabled audio button
    audio_button.click(
        fn=lambda: gr.Info("Join our Discord to unlock audio generation features!"),
        inputs=None,
        outputs=None
    )

if __name__ == "__main__":
    demo.queue(default_concurrency_limit=None)
    demo.launch()