import spaces
import gradio as gr
import torch
from PIL import Image
from diffusers import DiffusionPipeline
import random
from transformers import pipeline

torch.backends.cudnn.deterministic = True
torch.backends.cudnn.benchmark = False
torch.backends.cuda.matmul.allow_tf32 = True

# 번역 모델 초기화
translator = pipeline("translation", model="Helsinki-NLP/opus-mt-ko-en")

base_model = "black-forest-labs/FLUX.1-dev"
pipe = DiffusionPipeline.from_pretrained(base_model, torch_dtype=torch.bfloat16)

lora_repo = "strangerzonehf/Flux-Xmas-Realpix-LoRA"
trigger_word = ""
pipe.load_lora_weights(lora_repo)

pipe.to("cuda")

MAX_SEED = 2**32-1

@spaces.GPU()
def translate_and_generate(prompt, cfg_scale, steps, randomize_seed, seed, width, height, lora_scale, progress=gr.Progress(track_tqdm=True)):
    # 한글 감지 및 번역
    def contains_korean(text):
        return any(ord('가') <= ord(char) <= ord('힣') for char in text)
    
    if contains_korean(prompt):
        # 한글을 영어로 번역
        translated = translator(prompt)[0]['translation_text']
        actual_prompt = translated
    else:
        actual_prompt = prompt

    if randomize_seed:
        seed = random.randint(0, MAX_SEED)
    generator = torch.Generator(device="cuda").manual_seed(seed)

    progress(0, "Starting image generation...")

    for i in range(1, steps + 1):
        if i % (steps // 10) == 0:
            progress(i / steps * 100, f"Processing step {i} of {steps}...")

    image = pipe(
        prompt=f"{actual_prompt} {trigger_word}",
        num_inference_steps=steps,
        guidance_scale=cfg_scale,
        width=width,
        height=height,
        generator=generator,
        joint_attention_kwargs={"scale": lora_scale},
    ).images[0]

    progress(100, "Completed!")
    return image, seed

example_image_path = "example0.webp"
example_prompt = """Cozy winter scene with a Christmas atmosphere: a snow-covered cabin in the forest, warm light glowing from the windows, surrounded by sparkling Christmas decorations and a beautifully adorned Christmas tree. The sky is filled with stars, and soft snowflakes are gently falling, creating a serene and warm ambiance"""
example_cfg_scale = 3.2
example_steps = 32
example_width = 1152
example_height = 896
example_seed = 3981632454
example_lora_scale = 0.85

def load_example():
    example_image = Image.open(example_image_path)
    return example_prompt, example_cfg_scale, example_steps, True, example_seed, example_width, example_height, example_lora_scale, example_image


css = """
.container {max-width: 1400px; margin: auto; padding: 20px;}
.header {text-align: center; margin-bottom: 30px;}
.generate-btn {background-color: #2ecc71 !important; color: white !important; margin: 20px auto !important; display: block !important; width: 200px !important;}
.generate-btn:hover {background-color: #27ae60 !important;}
.parameter-box {background-color: #f5f6fa; padding: 20px; border-radius: 10px; margin: 10px 0;}
.result-box {background-color: #f5f6fa; padding: 20px; border-radius: 10px; margin: 0 auto 20px auto; text-align: center;}
.image-output {margin: 0 auto; display: block; max-width: 800px !important;}
.accordion {margin-top: 20px;}
"""

with gr.Blocks(css=css) as app:
    with gr.Column(elem_classes="container"):
        gr.Markdown("# 🎨 X-MAS LoRA", elem_classes="header")
        
        # 이미지 출력 영역을 먼저 배치
        with gr.Group(elem_classes="result-box"):
            gr.Markdown("### 🖼️ Generated Image")
            result = gr.Image(label="Result", elem_classes="image-output")
            
        # 생성 버튼
        generate_button = gr.Button(
            "🚀 Generate Image",
            elem_classes="generate-btn"
        )
        
        # 옵션들을 아코디언으로 구성
        with gr.Accordion("🎨 Generation Options", open=False, elem_classes="accordion"):
            with gr.Group(elem_classes="parameter-box"):
                prompt = gr.TextArea(
                    label="✍️ Your Prompt (한글 또는 영어)",
                    placeholder="이미지를 설명하세요... (한글 입력시 자동으로 영어로 번역됩니다)",
                    lines=5
                )
                
            with gr.Group(elem_classes="parameter-box"):
                gr.Markdown("### 🎛️ Generation Parameters")
                with gr.Row():
                    with gr.Column():
                        cfg_scale = gr.Slider(
                            label="CFG Scale",
                            minimum=1,
                            maximum=20,
                            step=0.5,
                            value=example_cfg_scale
                        )
                        steps = gr.Slider(
                            label="Steps",
                            minimum=1,
                            maximum=100,
                            step=1,
                            value=example_steps
                        )
                        lora_scale = gr.Slider(
                            label="LoRA Scale",
                            minimum=0,
                            maximum=1,
                            step=0.01,
                            value=example_lora_scale
                        )
            
            with gr.Group(elem_classes="parameter-box"):
                gr.Markdown("### 📐 Image Dimensions")
                with gr.Row():
                    width = gr.Slider(
                        label="Width",
                        minimum=256,
                        maximum=1536,
                        step=64,
                        value=example_width
                    )
                    height = gr.Slider(
                        label="Height",
                        minimum=256,
                        maximum=1536,
                        step=64,
                        value=example_height
                    )
            
            with gr.Group(elem_classes="parameter-box"):
                gr.Markdown("### 🎲 Seed Settings")
                with gr.Row():
                    randomize_seed = gr.Checkbox(
                        True,
                        label="Randomize seed"
                    )
                    seed = gr.Slider(
                        label="Seed",
                        minimum=0,
                        maximum=MAX_SEED,
                        step=1,
                        value=example_seed
                    )

    app.load(
        load_example,
        inputs=[],
        outputs=[prompt, cfg_scale, steps, randomize_seed, seed, width, height, lora_scale, result]
    )
    
    generate_button.click(
        translate_and_generate,
        inputs=[prompt, cfg_scale, steps, randomize_seed, seed, width, height, lora_scale],
        outputs=[result, seed]
    )

app.queue()
app.launch()