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import streamlit as st
import torch
import numpy as np
from diffusers import DiffusionPipeline
from transformers import pipeline

# Load text generation pipeline
text_pipe = pipeline('text-generation', model='daspartho/prompt-extend')

def extend_prompt(prompt):
    return text_pipe(prompt + ',', num_return_sequences=1, max_new_tokens=50)[0]["generated_text"]

@st.cache_resource
def load_pipeline(use_cuda):
    device = "cuda" if use_cuda and torch.cuda.is_available() else "cpu"
    pipe = DiffusionPipeline.from_pretrained(
        "stabilityai/sdxl-turbo",
        torch_dtype=torch.float16 if device == "cuda" else torch.float32,
        variant="fp16" if device == "cuda" else None,
        use_safetensors=True
    )
    if device == "cuda":
        pipe.enable_xformers_memory_efficient_attention()
    pipe.to(device)
    return pipe

def generate_image(prompt, use_details, use_cuda):
    pipe = load_pipeline(use_cuda)
    generator = torch.manual_seed(np.random.randint(0, 2**32))
    extended_prompt = extend_prompt(prompt) if use_details else prompt
    image = pipe(prompt=extended_prompt, generator=generator, num_inference_steps=25, guidance_scale=7.5).images[0]
    return image, extended_prompt

# Add the custom CSS file
st.markdown('<link rel="stylesheet" href="styles.css">', unsafe_allow_html=True)

st.markdown("<div class='header'>✨ Generate Your Custom GitHub Profile Picture! ✨</div>", unsafe_allow_html=True)
st.markdown("<div class='subheader'>Create an anime-style GitHub profile picture that reflects your personality and passion for coding. πŸš€πŸ‘¨β€πŸ’»</div>", unsafe_allow_html=True)

# Input widgets
input_text = st.text_area("Describe your GitHub profile picture:", "Create an anime-style GitHub profile picture for a boy")

details_checkbox = st.checkbox("Generate Details?", value=True)
cuda_checkbox = st.checkbox("Use CUDA?", value=False)

if st.button("Generate Image"):
    with st.spinner('Generating image...'):
        image, extended_prompt = generate_image(input_text, details_checkbox, cuda_checkbox)
        st.image(image, caption="Generated Image")
        st.text(f"Extended Prompt: {extended_prompt}")
    st.balloons()