app.py

import json
import os
import time
import uuid
import tempfile
from PIL import Image
import gradio as gr
import base64
import mimetypes

from google import genai
from google.genai import types

def save_binary_file(file_name, data):
    with open(file_name, "wb") as f:
        f.write(data)

def generate(text, file_name, api_key, model="gemini-2.0-flash-exp"):
    # Initialize client using provided api_key (or fallback to env variable)
    client = genai.Client(api_key=(api_key.strip() if api_key and api_key.strip() != ""
                                     else os.environ.get("GEMINI_API_KEY")))
    
    files = [
        client.files.upload(file=file_name),
    ]

    contents = [
        types.Content(
            role="user",
            parts=[
                types.Part.from_uri(
                    file_uri=files[0].uri,
                    mime_type=files[0].mime_type,
                ),
                types.Part.from_text(text=text),
            ],
        ),
    ]
    generate_content_config = types.GenerateContentConfig(
        temperature=1,
        top_p=0.95,
        top_k=40,
        max_output_tokens=8192,
        response_modalities=[
            "image",
            "text",
        ],
        response_mime_type="text/plain",
    )

    with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as tmp:
        temp_path = tmp.name
        for chunk in client.models.generate_content_stream(
            model=model,
            contents=contents,
            config=generate_content_config,
        ):
            if not chunk.candidates or not chunk.candidates[0].content or not chunk.candidates[0].content.parts:
                continue
            inline_data = chunk.candidates[0].content.parts[0].inline_data
            if inline_data:
                save_binary_file(temp_path, inline_data.data)
                print(
                    "File of mime type "
                    f"{inline_data.mime_type} saved to: {temp_path} and prompt input :{text}"
                )
            else:
                print(chunk.text)

    del files
    return temp_path


def process_image_and_prompt(composite_pil, prompt, gemini_api_key):
    try:
        # Save the composite image to a temporary file.
        with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as tmp:
            composite_path = tmp.name
            composite_pil.save(composite_path)

        file_name = composite_path  
        input_text = prompt 
        model = "gemini-2.0-flash-exp" 

        gemma_edited_image_path = generate(text=input_text, file_name=file_name, api_key=gemini_api_key, model=model)
        print("image_path ", gemma_edited_image_path)
        result_img = Image.open(gemma_edited_image_path)
        if result_img.mode == "RGBA":
            result_img = result_img.convert("RGB")
        return [result_img]
    except Exception as e:
        raise gr.Error(f"Error Getting {e}", duration=5)

# Build a Blocks-based interface to include the custom HTML header.
with gr.Blocks() as demo:
    # HTML Header for the application.
    gr.HTML(
    """
    <div style='display: flex; align-items: center; justify-content: center; gap: 20px'>
    <div style="background-color: var(--block-background-fill); border-radius: 8px">
        <img src="https://www.gstatic.com/lamda/images/gemini_favicon_f069958c85030456e93de685481c559f160ea06b.png" style="width: 100px; height: 100px;">
    </div>
    <div>
        <h1>Gen AI Image Editing</h1>
        <p>Gemini using for Image Editing</p>
        <p>Powered by <a href="https://gradio.app/">Gradio</a> ⚡️</p>
        <p>Get an API Key <a href="https://aistudio.google.com/apikey">here</a></p>
        <p>Follow me on Twitter: <a href="https://x.com/Ameerazam18">Ameerazam18</a></p>
    </div>
    </div>
    """
    )

    # Title and description.

    # Define examples to be shown within the Gradio interface
    examples = [
        # Each example is a list corresponding to the inputs:
        # [Input Image, Prompt, Guidance Scale, Number of Steps, LoRA Name]
        ["data/1.webp", 'change text to "AMEER"'],
        ["data/2.webp", "remove the spoon from  hand only"],
        ["data/3.webp", 'change text to "Make it "'],
        ["data/1.jpg", "add  joker style only on face"],
         ["data/1777043.jpg", "add  joker style only on face"],
         ["data/2807615.jpg","add lipstick on lip only "],
         
         ["data/76860.jpg", "add lipstick on lip only "],
         ["data/2807615.jpg", "make it happy looking face only"],
        
    
    ]

    gr.Markdown("Upload an image and enter a prompt to generate outputs in the gallery. Do not Use NFSW Images")

    with gr.Row():
        with gr.Column():
            image_input = gr.Image(
                type="pil",
                label="Upload Image",
                image_mode="RGBA"
            )
            gemini_api_key = gr.Textbox(
                lines=1,
                placeholder="Enter Gemini API Key (optional)",
                label="Gemini API Key (optional) Generate and fill here"
            )
            prompt_input = gr.Textbox(
                lines=2,
                placeholder="Enter prompt here...",
                label="Prompt"
            )
            submit_btn = gr.Button("Generate")
        with gr.Column():
            output_gallery = gr.Gallery(label="Generated Outputs")

    # Set up the interaction.
    submit_btn.click(
        fn=process_image_and_prompt,
        inputs=[image_input, prompt_input, gemini_api_key],
        outputs=output_gallery,
 
    )
    gr.Examples(
        examples=examples,
        inputs=[image_input, prompt_input, gemini_api_key],
        label="Try these examples"
    )

demo.queue(max_size=500).launch()