import gradio as gr
import threading
from util import process_image_edit, check_nsfw, get_country_info_safe

IP_Dict = {}

def edit_image_interface(input_image, prompt, request: gr.Request, progress=gr.Progress()):
    """
    Interface function for processing image editing
    """
    # 提取用户IP
    client_ip = request.client.host
    x_forwarded_for = dict(request.headers).get('x-forwarded-for')
    if x_forwarded_for:
        client_ip = x_forwarded_for   
    if client_ip not in IP_Dict:
        IP_Dict[client_ip] = 0
    IP_Dict[client_ip] += 1
    
    # 获取IP属地信息
    country_info = get_country_info_safe(client_ip)
    
    if input_image is None:
        return None, "Please upload an image first"
    
    if not prompt or prompt.strip() == "":
        return None, "Please enter editing prompt"
    
    # 检查prompt长度是否大于3个字符
    if len(prompt.strip()) <= 3:
        return None, "❌ Editing prompt must be more than 3 characters"
    
    # 检查是否包含NSFW内容
    if check_nsfw(prompt.strip()) == 1:
        print(f"❌ NSFW content detected - IP: {client_ip}({country_info}), prompt: {prompt.strip()}")
        return None, "❌ Content not allowed. Please modify your prompt"
    
    result_url = None
    status_message = ""
    
    def progress_callback(message):
        nonlocal status_message
        status_message = message
        progress(0.5, desc=message)
    
    try:
        # 打印成功访问的信息
        print(f"✅ Processing started - IP: {client_ip}({country_info}), count: {IP_Dict[client_ip]}, prompt: {prompt.strip()}")
        
        # Call image editing processing function
        result_url, message = process_image_edit(input_image, prompt.strip(), progress_callback)
        
        if result_url:
            print(f"✅ Processing completed successfully - IP: {client_ip}({country_info}), result_url: {result_url}")
            progress(1.0, desc="Processing completed")
            return result_url, "✅ " + message
        else:
            print(f"❌ Processing failed - IP: {client_ip}({country_info}), error: {message}")
            return None, "❌ " + message
            
    except Exception as e:
        return None, f"❌ Error occurred during processing: {str(e)}"

# Create Gradio interface
def create_app():
    with gr.Blocks(
        title="AI Image Editor",
        theme=gr.themes.Soft(),
        css="""
        .main-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .upload-area {
            border: 2px dashed #ccc;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
        }
        .result-area {
            margin-top: 20px;
            padding: 20px;
            border-radius: 10px;
            background-color: #f8f9fa;
        }
        """
    ) as app:
        
        gr.Markdown(
            """
            # 🎨 AI Image Editor
            """,
            elem_classes=["main-container"]
        )
        
        with gr.Row():
            with gr.Column(scale=1):
                gr.Markdown("### 📸 Upload Image")
                input_image = gr.Image(
                    label="Select image to edit",
                    type="filepath",
                    height=400,
                    elem_classes=["upload-area"]
                )
                
                gr.Markdown("### ✍️ Editing Instructions")
                prompt_input = gr.Textbox(
                    label="Enter editing prompt",
                    placeholder="For example: change background to beach, add rainbow, remove background, etc...",
                    lines=3,
                    max_lines=5
                )
                
                edit_button = gr.Button(
                    "🚀 Start Editing",
                    variant="primary",
                    size="lg"
                )
            
            with gr.Column(scale=1):
                gr.Markdown("### 🎯 Editing Result")
                output_image = gr.Image(
                    label="Edited image",
                    height=400,
                    elem_classes=["result-area"]
                )
                
                status_output = gr.Textbox(
                    label="Processing status",
                    lines=2,
                    max_lines=3,
                    interactive=False
                )
        
        # Example area
        gr.Markdown("### 💡 Prompt Examples")
        with gr.Row():
            example_prompts = [
                "Change the character's background to a sunny seaside with blue waves.",
                "Change the character's background to New York at night with neon lights.",
                "Change the character's background to a fairytale castle with bright colors.",
                "Change background to forest",
                "Change background to snow mountain"
            ]
            
            for prompt in example_prompts:
                gr.Button(
                    prompt,
                    size="sm"
                ).click(
                    lambda p=prompt: p,
                    outputs=prompt_input
                )
        
        # Bind button click event
        edit_button.click(
            fn=edit_image_interface,
            inputs=[input_image, prompt_input],
            outputs=[output_image, status_output],
            show_progress=True
        )
    
    return app

if __name__ == "__main__":
    app = create_app()
    app.queue()  # Enable queue to handle concurrent requests
    app.launch()