import streamlit as st
from huggingface_hub import InferenceClient
from gradio_client import Client
import re

# Load custom CSS
with open('style.css') as f:
    st.markdown(f'<style>{f.read()}</style>', unsafe_allow_html=True)

# Initialize the HuggingFace Inference Client
text_client = InferenceClient(model="mistralai/Mistral-7B-Instruct-v0.1")
image_client = Client("Boboiazumi/animagine-xl-3.1")

def format_prompt_for_description(name, hair_color, personality, outfit_style, hobbies, favorite_food, background_story, **kwargs):
    prompt = f"Create a waifu character named {name} with {hair_color} hair, a {personality} personality, and wearing a {outfit_style}. "
    prompt += f"Her hobbies include {hobbies}. Her favorite food is {favorite_food}. Here is her background story: {background_story}."
    for key, value in kwargs.items():
        prompt += f" Her {key} is {value}."
    return prompt

def format_prompt_for_image(name, hair_color, personality, outfit_style, **kwargs):
    prompt = f"Generate an image prompt for a waifu character named {name} with {hair_color} hair, a {personality} personality, and wearing a {outfit_style}."
    for key, value in kwargs.items():
        prompt += f" She is in a {key} setting, posing in a {value}."
    return prompt

def clean_generated_text(text):
    # Remove any unwanted trailing tags or characters like </s>
    clean_text = re.sub(r'</s>$', '', text).strip()
    return clean_text

def generate_text(prompt, temperature=0.9, max_new_tokens=512, top_p=0.95, repetition_penalty=1.0):
    temperature = max(temperature, 1e-2)
    generate_kwargs = dict(
        temperature=temperature,
        max_new_tokens=max_new_tokens,
        top_p=top_p,
        repetition_penalty=repetition_penalty,
        do_sample=True,
        seed=42,
    )
    try:
        stream = text_client.text_generation(prompt, **generate_kwargs, stream=True, details=True, return_full_text=False)
        output = ""
        for response in stream:
            output += response.token.text
        return clean_generated_text(output)
    except Exception as e:
        st.error(f"Error generating text: {e}")
        return ""

def generate_image(prompt):
    try:
        result = image_client.predict(
            prompt=prompt,
            negative_prompt="",
            seed=0,
            custom_width=1024,
            custom_height=1024,
            guidance_scale=7.0,
            num_inference_steps=28,
            sampler="Euler a",
            aspect_ratio_selector="896 x 1152",
            style_selector="(None)",
            quality_selector="Standard v3.1",
            use_upscaler=False,
            upscaler_strength=0.55,
            upscale_by=1.5,
            add_quality_tags=True,
            isImg2Img=False,
            img_path=None,
            img2img_strength=0.65,
            api_name="/run"
        )
        # Process and display the result
        if result:
            images = []
            for image_data in result[0]:
                images.append(image_data['image'])
            return images
        else:
            st.error("Unexpected result format from the Gradio API.")
            return None
    except Exception as e:
        st.error(f"Error generating image: {e}")
        st.write("Full error details:", e)
        return None

def main():
    st.title("Free Waifu Character Generator")
    st.write("""
    Welcome to the Free Waifu Character Generator! This app allows you to create a unique waifu with just one click. 
    Generate a detailed bio/background story, a prompt for an image, and the image itself. 
    It's the best free waifu generator out there, providing everything you need to bring your waifu to life.
    """)

    # Layout containers
    left_col, right_col = st.columns(2)
    
    with left_col:
        st.header("Waifu Settings")

        # Basic settings
        name = st.text_input("Name of the Waifu")
        hair_color = st.selectbox("Hair Color", ["Blonde", "Brunette", "Red", "Black", "Blue", "Pink"])
        personality = st.selectbox("Personality", ["Tsundere", "Yandere", "Kuudere", "Dandere", "Genki", "Normal"])
        outfit_style = st.selectbox("Outfit Style", ["School Uniform", "Maid Outfit", "Casual", "Kimono", "Gothic Lolita"])

        # Advanced settings
        with st.expander("More Options"):
            hobbies = st.text_input("Hobbies")
            favorite_food = st.text_input("Favorite Food")
            background_story = st.text_area("Background Story")
            eye_color = st.selectbox("Eye Color", ["Blue", "Green", "Brown", "Hazel", "Red", "Purple"], index=0)
            height = st.text_input("Height (e.g., 5'6\")", "")
            age = st.text_input("Age", "")
            favorite_quote = st.text_input("Favorite Quote", "")
            strengths = st.text_input("Strengths", "")
            weaknesses = st.text_input("Weaknesses", "")
            goals = st.text_input("Goals", "")
            background_setting = st.selectbox("Background Setting", ["School", "City", "Fantasy World", "Beach", "Park"], index=0)
            pose = st.selectbox("Pose", ["Standing", "Sitting", "Action Pose", "Lying Down"], index=0)
            system_prompt = st.text_input("Optional System Prompt", "")

        # Advanced settings sliders
        with st.expander("Advanced Settings"):
            temperature = st.slider("Temperature", 0.0, 1.0, 0.9, step=0.05)
            max_new_tokens = st.slider("Max new tokens", 0, 8192, 512, step=64)
            top_p = st.slider("Top-p (nucleus sampling)", 0.0, 1.0, 0.95, step=0.05)
            repetition_penalty = st.slider("Repetition penalty", 1.0, 2.0, 1.0, step=0.05)

        # Initialize session state for generated text and image prompt
        if "character_description" not in st.session_state:
            st.session_state.character_description = ""
        if "image_prompt" not in st.session_state:
            st.session_state.image_prompt = ""
        if "image_paths" not in st.session_state:
            st.session_state.image_paths = []

        # Generate button
        if st.button("Generate Waifu"):
            with st.spinner("Generating waifu character..."):
                description_prompt = format_prompt_for_description(
                    name, hair_color, personality, outfit_style, hobbies, favorite_food, background_story,
                    eye_color=eye_color, height=height, age=age, favorite_quote=favorite_quote, strengths=strengths,
                    weaknesses=weaknesses, goals=goals
                )
                image_prompt = format_prompt_for_image(
                    name, hair_color, personality, outfit_style,
                    background_setting=background_setting, pose=pose
                )

                # Generate character description
                st.session_state.character_description = generate_text(description_prompt, temperature, max_new_tokens, top_p, repetition_penalty)
                
                # Generate image prompt
                st.session_state.image_prompt = generate_text(image_prompt, temperature, max_new_tokens, top_p, repetition_penalty)
                
                # Generate image from image prompt
                st.session_state.image_paths = generate_image(st.session_state.image_prompt)
                
                st.success("Waifu character generated!")

    with right_col:
        st.header("Generated Waifu")
        # Display the generated character and image prompt
        if st.session_state.character_description:
            st.subheader("Generated Waifu Character")
            st.write(st.session_state.character_description)
        if st.session_state.image_prompt:
            st.subheader("Image Prompt")
            st.write(st.session_state.image_prompt)
        if st.session_state.image_paths:
            st.subheader("Generated Image")
            for image_path in st.session_state.image_paths:
                st.image(image_path, caption="Generated Waifu Image")

if __name__ == "__main__":
    main()