# ui/ui_core.py
import gradio as gr
import json

question_examples = [
    ["Given a patient with WHIM syndrome on prophylactic antibiotics, is it advisable to co-administer Xolremdi with fluconazole?"],
    ["What treatment options exist for HER2+ breast cancer resistant to trastuzumab?"]
]

def extract_tool_name_and_clean_content(msg):
    tool_name = "Tool Result"
    content = msg.get("content") if isinstance(msg, dict) else getattr(msg, "content", "")
    try:
        parsed = json.loads(content)
        if isinstance(parsed, dict):
            tool_name = parsed.get("tool_name", tool_name)
            content = parsed.get("content", content)
    except Exception:
        pass
    if isinstance(content, (dict, list)):
        content = json.dumps(content, indent=2)
    return f"Tool: {tool_name}", content

def format_collapsible(content, title="Answer"):
    return (
        f"<details style='border: 1px solid #ccc; border-radius: 8px; padding: 10px; margin-top: 10px;'>"
        f"<summary style='font-size: 16px; font-weight: bold; color: #3B82F6;'>{title}</summary>"
        f"<div style='margin-top: 8px; font-size: 15px; line-height: 1.6; white-space: pre-wrap;'>{content}</div></details>"
    )

def create_ui(agent):
    with gr.Blocks(theme=gr.themes.Soft()) as demo:
        gr.Markdown("<h1 style='text-align: center;'>💊 TxAgent: Therapeutic Reasoning</h1>")
        chatbot = gr.Chatbot(label="TxAgent", height=600, type="messages")
        message_input = gr.Textbox(placeholder="Ask a biomedical question...", show_label=False)
        send_button = gr.Button("Send", variant="primary")
        conversation_state = gr.State([])

        def handle_chat(message, history, conversation):
            generator = agent.run_gradio_chat(
                message=message,
                history=history,
                temperature=0.3,
                max_new_tokens=1024,
                max_token=8192,
                call_agent=False,
                conversation=conversation,
                max_round=30
            )
            for update in generator:
                formatted = []
                for m in update:
                    role = m.get("role") if isinstance(m, dict) else getattr(m, "role", "assistant")
                    if role == "assistant":
                        title, clean = extract_tool_name_and_clean_content(m)
                        content = format_collapsible(clean, title)
                    else:
                        content = m.get("content") if isinstance(m, dict) else getattr(m, "content", "")
                    formatted.append({"role": role, "content": content})
                yield formatted

        send_button.click(fn=handle_chat, inputs=[message_input, chatbot, conversation_state], outputs=chatbot)
        message_input.submit(fn=handle_chat, inputs=[message_input, chatbot, conversation_state], outputs=chatbot)

        gr.Examples(examples=question_examples, inputs=message_input)
        gr.Markdown("<small style='color: gray;'>DISCLAIMER: This demo is for research purposes only and does not provide medical advice.</small>")

    return demo