import torch
import streamlit as st
from diffusers import DiffusionPipeline

# Cache resource to load the pipeline
@st.cache_resource
def load_pipeline():
    device = "cuda" if torch.cuda.is_available() else "cpu"
    pipe = DiffusionPipeline.from_pretrained("stabilityai/stable-diffusion-xl-base-1.0",
                                             torch_dtype=torch.float16 if device == "cuda" else torch.float32,
                                             use_safetensors=True,
                                             variant="fp16" if device == "cuda" else None)
    return pipe

# Image generation function
def image_generation(pipe, prompt, negative_prompt):
    try:
        image = pipe(
            prompt=prompt,
            negative_prompt="blurred, ugly, watermark, low resolution" + negative_prompt,
            num_inference_steps=20,
            guidance_scale=9.0
        ).images[0]
        return image
    except Exception as e:
        st.error(f"Error generating image: {str(e)}")
        return None

# Define the table as a list of dictionaries with more artistic styles
table = [
    {
        "name": "sai-neonpunk",
        "prompt": "neonpunk style . cyberpunk, vaporwave, neon, vibes, vibrant, stunningly beautiful, crisp, detailed, sleek, ultramodern, magenta highlights, dark purple shadows, high contrast, cinematic, ultra detailed, intricate, professional",
        "negative_prompt": "painting, drawing, illustration, glitch, deformed, mutated, cross-eyed, ugly, disfigured"
    },
    {
        "name": "futuristic-retro cyberpunk",
        "prompt": "retro cyberpunk. 80's inspired, synthwave, neon, vibrant, detailed, retro futurism",
        "negative_prompt": "modern, desaturated, black and white, realism, low contrast"
    },
    {
        "name": "Dark Fantasy",
        "prompt": "Dark Fantasy Art, dark, moody, dark fantasy style",
        "negative_prompt": "ugly, deformed, noisy, blurry, low contrast, bright, sunny"
    },
    {
        "name": "Double Exposure",
        "prompt": "Double Exposure Style, double image ghost effect, image combination, double exposure style",
        "negative_prompt": "ugly, deformed, noisy, blurry, low contrast"
    },
    {
        "name": "Vintage Retro",
        "prompt": "vintage retro style, old-school, warm colors, nostalgic, retro textures, faded colors, cozy atmosphere, worn, classic film",
        "negative_prompt": "modern, bright, high definition, sharp"
    },
    {
        "name": "Sci-Fi Futuristic",
        "prompt": "Sci-Fi futuristic, cybernetic, sleek metallic designs, neon, artificial intelligence, high-tech, future cities, robots, alien landscapes",
        "negative_prompt": "low-tech, blurry, old-fashioned, dull, dark"
    },
    {
        "name": "Surrealism",
        "prompt": "Surrealism, dreamlike, abstract, bizarre, imaginative, fantastical, magical realism, melting objects, floating landscapes",
        "negative_prompt": "realistic, plain, dull, conventional"
    },
    {
        "name": "Pop Art",
        "prompt": "Pop Art, bold colors, comic book style, strong lines, graphic, playful, contemporary, inspired by Andy Warhol and Roy Lichtenstein",
        "negative_prompt": "minimalistic, muted colors, traditional, abstract"
    },
    {
        "name": "Gothic Horror",
        "prompt": "Gothic horror, dark, eerie, vintage horror, Victorian architecture, spooky ambiance, haunted, gothic castles, fog, grim landscapes",
        "negative_prompt": "light, cheerful, happy, bright"
    },
    {
        "name": "Minimalism",
        "prompt": "Minimalism, clean lines, simple forms, neutral tones, white space, simple color palette, elegant, modern design",
        "negative_prompt": "cluttered, bright, complex, busy"
    },
    {
        "name": "Steampunk",
        "prompt": "Steampunk, Victorian industrial, brass gears, steam-powered machinery, fantasy airships, retro-futuristic, adventure, mechanical details",
        "negative_prompt": "futuristic, modern, minimalistic, digital"
    }
]

# Convert to dictionary for easy lookup
styles_dict = {entry["name"]: entry for entry in table}

# Streamlit UI
st.title("Image Generation")

# Display credit after the title in smaller font
st.markdown("<h3 style='font-size: 18px;'>Made by Taizun</h3>", unsafe_allow_html=True)

# User input for the custom prompt
prompt = st.text_input("Enter your Prompt")

# Load the pre-trained model
pipeline = load_pipeline()

# Dropdown for selecting a style
style_name = st.selectbox("Select a Style", options=list(styles_dict.keys()))

# Display the selected style's prompt and negative prompt
if style_name:
    selected_entry = styles_dict[style_name]
    selected_style_prompt = selected_entry["prompt"]
    selected_style_negative_prompt = selected_entry["negative_prompt"]

# Button to trigger image generation
if st.button("Generate Awesome Image"):
    with st.spinner("Generating your awesome image... This may take a while. Feel free to explore other spaces in the meantime"):
        image = image_generation(pipeline, prompt + selected_style_prompt, selected_style_negative_prompt)
        if image:
            st.image(image)