import gradio as gr
import requests
import json
import os
import markdown

API_URL = "https://host.palple.polrambora.com/pmsq"

sessions = {}
PRIMARY_SYSTEM_INSTRUCTIONS = "You are P-MSQ (Messaging Service Query), a friendly AI Chatbot that can help in any situations"
ASSISTANT_PIC_PATH = "https://huggingface.co/spaces/PLRMB/P-MSQ-API-PREVIEW/resolve/main/API.png"  
USER_PIC_PATH = "https://huggingface.co/spaces/PLRMB/P-MSQ-API-PREVIEW/resolve/main/usr.png"
def render_avatars(userid):
    try:
        response = requests.post(
            'https://host.palple.polrambora.com/userexistence',
            json={
                'userid': userid
            }
        )

        if response.status_code == 200:
            response_json = response.json()
            return response_json["avatar"]["link"]
    except Exception as e:
        return None


def authorize(user, api_key, system_message):
    test_data = {
        "user": user,
        "key": api_key
    }

    try:
        response = requests.post(
            "https://host.palple.polrambora.com/check_key_impv",
            json=test_data,
        )

        if response.status_code == 200:
            response_json = response.json()
            avatar = render_avatars(user) or USER_PIC_PATH
            
            if api_key not in sessions:
                sessions[api_key] = {
                    "history": [], 
                    "headers": {   
                        "authorization": api_key,
                        "Content-Type": 'application/json'
                    },
                    "avatar": avatar,
                    "system_message": system_message 
                }
            return True
        else:
            return False
    except Exception as e:
        return False

def respond(message, api_key, max_tokens, top_p, temperature):
    session = sessions.get(api_key, {})
    history = session.get("history", [])
    headers = session.get("headers", {})
    system_message = session.get("system_message", PRIMARY_SYSTEM_INSTRUCTIONS)
    messages = []
    for user_message, assistant_message, user_profile, assistant_profile, user_pic, assistant_pic in history:
        if user_message:
            messages.append({
                "role": "user",
                "content": user_message,
                "profile": user_profile,
                "picture": user_pic
            })
        if assistant_message:
            messages.append({
                "role": "assistant",
                "content": assistant_message,
                "profile": assistant_profile,
                "picture": assistant_pic
            })

    data = {
        "preferences": {
            "max_char": max_tokens,
            "temperature": temperature,
            "top_p": top_p,
            "system_message": system_message
        },
        "conversation_history": messages,
        "input": message
    }
    
    response = requests.post(API_URL, headers=headers, data=json.dumps(data))
    
    if response.status_code == 200:
        response_json = response.json()
        assistant_reply = response_json["msq"]["message"][0]
        history.append((message, assistant_reply, "You", "P-ALPLE", USER_PIC_PATH, ASSISTANT_PIC_PATH))
        sessions[api_key]["history"] = history  
        return history, assistant_reply  
    else:
        return history, "Error: " + response.json().get("error", "Unknown error occurred.")


def render_message(history):
    messages_html = """
    <div id="chatbox-container" class="chatbox" style="height: 400px; overflow: auto; border: 1px solid #262626; padding: 10px; background-color: #171717; display: flex; flex-direction: column-reverse;">
        <div id="messages" style="display: block; margin-bottom: 10px;">"""

    for user_message, assistant_message, user_profile, assistant_profile, user_pic, assistant_pic in history:
        if user_message:
            user_message_html = markdown.markdown(user_message)
            messages_html += f"""
            <div style='display: flex; align-items: center; margin-bottom: 10px;'>
                <img src='{user_pic}' style='width: 40px; height: 40px; border-radius: 50%; margin-right: 10px;'>
                <span id="message-content" style='color: white;'>{user_message_html}</span>
            </div><br>"""

        if assistant_message:
            assistant_message_html = markdown.markdown(assistant_message)
            messages_html += f"""
            <div style='display: flex; align-items: center; margin-bottom: 10px;'>
                <img src='{assistant_pic}' style='width: 40px; height: 40px; border-radius: 50%; margin-right: 10px;'>
                <span id="message-content" style='color: white;'>{assistant_message_html}</span>
            </div><br>"""

    messages_html += """
        </div></div>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/2.3.3/purify.min.js"></script>
        <script>
            function escapeHtml(unsafe) {
            return unsafe
                .replace(/&/g, "&amp;")
                .replace(/</g, "&lt;")
                .replace(/>/g, "&gt;")
                .replace(/"/g, "&quot;")
                .replace(/'/g, "&#039;");
            }
            let message = document.getElementById('message-content').innerHTML
            document.getElementById('message-content').innerHTML = escapeHtml(message);
        </script>
        """ 
    return messages_html


js = """
function HTMLClean() {
    alert("This page is in-dev stage, expect lots of restarts, the interface is open-sourced (not the backend that is responsible for API Keys)")
 }
"""

with gr.Blocks(css=".chatbox {height: 400px; overflow: auto; border: 1px solid #262626; padding: 10px; background-color: #171717; display: flex;  flex-direction: column-reverse;}", js=js) as demo:

    with gr.Column(visible=True) as auth_view:
        gr.Markdown("## P-MSQ Authorization")
        gr.Markdown("P-MSQ is in closed alpha test! The model, api and more are subject to change.")
        api_user_input = gr.Textbox(placeholder="snowflake", label="UserID", type='email')
        api_key_input = gr.Textbox(placeholder="Enter your API key", label="Token", type='password')
        auth_button = gr.Button("Authorize")
        auth_status = gr.Textbox(label="Authorization Status", interactive=False)

    with gr.Column(visible=False) as chat_view:
        gr.Markdown("## P-MSQ Chat Interface")

        chatbot_output = gr.HTML(elem_id="chatbox-container")

        msg_input = gr.Textbox(
            show_label=False, 
            placeholder="Type your message and press Shift+Enter...", 
            lines=2,
            elem_id="input-text"
        )

        send_btn = gr.Button("Send")
        regen_btn = gr.Button("Clear")

        system_instructions_input = gr.Textbox(placeholder="Enter custom instructions (optional)", 
                                               label="Custom System Instructions", 
                                               lines=2)
        save_instructions_btn = gr.Button("Save Instructions")        
        gr.Markdown("### Settings")
        
        max_tokens = gr.Slider(minimum=1, maximum=2048, value=1024, step=1, label="Max new tokens")
        top_p = gr.Slider(minimum=0, maximum=2, value=0.8, step=0.1, label="Top P")
        temperature = gr.Slider(minimum=0.1, maximum=1, value=0.7, step=0.1, label="Temperature")

        history_state = gr.State([])  
        last_message_state = gr.State("")  

        def user_interaction(message, history, api_key, max_tokens, top_p, temperature):
            loading_message = history + [(message, "Loading...", "You", "P-ALPLE", sessions[api_key]["avatar"], ASSISTANT_PIC_PATH)]
            yield render_message(loading_message), loading_message, ""

            history, assistant_reply = respond(message, api_key, max_tokens, top_p, temperature)
            yield render_message(history), history, ""

        def regenerate_response(history, last_message, max_tokens, top_p, temperature):
            return "", []

        def clear_history(api_key):
            if api_key in sessions:
                sessions[api_key]["history"] = []  
            return "", []

        def load_conversation(api_key):
            session = sessions.get(api_key, {})
            history = session.get("history", [])
            return render_message(history), history

        msg_input.submit(
            user_interaction, 
            inputs=[msg_input, history_state, api_key_input, max_tokens, top_p, temperature], 
            outputs=[chatbot_output, history_state, msg_input],
        )

        send_btn.click(
            user_interaction, 
            inputs=[msg_input, history_state, api_key_input, max_tokens, top_p, temperature], 
            outputs=[chatbot_output, history_state, msg_input],
        )

        regen_btn.click(clear_history, 
                        inputs=[api_key_input], 
                        outputs=[chatbot_output, history_state])

    def authorize_and_proceed(user, api_key):
        if authorize(user, api_key, PRIMARY_SYSTEM_INSTRUCTIONS):
            gr.Info("Loading, please wait.")
            messages_html, history = load_conversation(api_key)

            return (
            gr.update(visible=False), 
            gr.update(visible=True),  
            messages_html,
            history
            )
        else:
            gr.Warning("Incorrect userid/token")
            return (
                gr.update(visible=True),  
                gr.update(visible=False), 
                auth_status.update(value="Invalid userid/token")
            )

    def save_custom_instructions(api_key, custom_instructions):
        if api_key in sessions:
            gr.Info("Instructions updated, we recommend to start the new conversation to make it more efficient.")
            sessions[api_key]["system_message"] = custom_instructions  
            return "Instructions updated!", gr.update(value="")
        else:
            gr.Warning("Your session has been expired, please refresh the page and login again.")
            return "Session not found.", gr.update(value="")

    auth_button.click(authorize_and_proceed, inputs=[api_user_input, api_key_input], outputs=[auth_view, chat_view, chatbot_output, history_state])
    save_instructions_btn.click(save_custom_instructions, inputs=[api_key_input, system_instructions_input], outputs=auth_status)
    demo.launch(show_api=False)
if __name__ == "__main__":
    demo.queue = False