lollms-webui/app.py

######
# Project       : GPT4ALL-UI
# Author        : ParisNeo with the help of the community
# Supported by Nomic-AI
# license       : Apache 2.0
# Description   : 
# A front end Flask application for llamacpp models.
# The official GPT4All Web ui
# Made by the community for the community
######

__author__ = "parisneo"
__github__ = "https://github.com/nomic-ai/gpt4all-ui"
__copyright__ = "Copyright 2023, "
__license__ = "Apache 2.0"

import os
import logging
import argparse
import json
import re
import traceback
import sys
from tqdm import tqdm
import subprocess
import signal
from pyaipersonality import AIPersonality
from api.db import DiscussionsDB, Discussion
from flask import (
    Flask,
    Response,
    jsonify,
    render_template,
    request,
    stream_with_context,
    send_from_directory
)
from flask_socketio import SocketIO, emit
from pathlib import Path
import gc
import yaml
from geventwebsocket.handler import WebSocketHandler
from gevent.pywsgi import WSGIServer
import requests
from concurrent.futures import ThreadPoolExecutor, as_completed
import logging
log = logging.getLogger('werkzeug')
log.setLevel(logging.ERROR)

app = Flask("GPT4All-WebUI", static_url_path="/static", static_folder="static")
socketio = SocketIO(app,  cors_allowed_origins="*", async_mode='gevent', ping_timeout=200, ping_interval=15)

app.config['SECRET_KEY'] = 'secret!'
# Set the logging level to WARNING or higher
logging.getLogger('socketio').setLevel(logging.WARNING)
logging.getLogger('engineio').setLevel(logging.WARNING)
logging.getLogger('werkzeug').setLevel(logging.ERROR)
logging.basicConfig(level=logging.WARNING)

import time
from api.config import load_config, save_config
from api import GPT4AllAPI
import shutil
import markdown


class Gpt4AllWebUI(GPT4AllAPI):
    def __init__(self, _app, _socketio, config:dict, config_file_path) -> None:
        super().__init__(config, _socketio, config_file_path)

        self.app = _app
        self.cancel_gen = False
        

        if "use_new_ui" in self.config:
            if self.config["use_new_ui"]:
                app.template_folder = "web/dist"


        # =========================================================================================
        # Endpoints
        # =========================================================================================


        self.add_endpoint(
            "/list_bindings", "list_bindings", self.list_bindings, methods=["GET"]
        )
        self.add_endpoint(
            "/list_models", "list_models", self.list_models, methods=["GET"]
        )
        self.add_endpoint(
            "/list_personalities_languages", "list_personalities_languages", self.list_personalities_languages, methods=["GET"]
        )        
        self.add_endpoint(
            "/list_personalities_categories", "list_personalities_categories", self.list_personalities_categories, methods=["GET"]
        )
        self.add_endpoint(
            "/list_personalities", "list_personalities", self.list_personalities, methods=["GET"]
        )

        self.add_endpoint(
            "/list_languages", "list_languages", self.list_languages, methods=["GET"]
        )
        
        self.add_endpoint(
            "/list_discussions", "list_discussions", self.list_discussions, methods=["GET"]
        )
        
        self.add_endpoint("/set_personality", "set_personality", self.set_personality, methods=["GET"])
        self.add_endpoint("/delete_personality", "delete_personality", self.delete_personality, methods=["GET"])
        
        
        self.add_endpoint("/", "", self.index, methods=["GET"])
        self.add_endpoint("/<path:filename>", "serve_static", self.serve_static, methods=["GET"])
        self.add_endpoint("/personalities/<path:filename>", "serve_personalities", self.serve_personalities, methods=["GET"])
        self.add_endpoint("/outputs/<path:filename>", "serve_outputs", self.serve_outputs, methods=["GET"])

        
        self.add_endpoint("/export_discussion", "export_discussion", self.export_discussion, methods=["GET"])
        self.add_endpoint("/export", "export", self.export, methods=["GET"])
        self.add_endpoint(
            "/new_discussion", "new_discussion", self.new_discussion, methods=["GET"]
        )
        self.add_endpoint("/stop_gen", "stop_gen", self.stop_gen, methods=["GET"])

        self.add_endpoint("/rename", "rename", self.rename, methods=["POST"])
        self.add_endpoint("/edit_title", "edit_title", self.edit_title, methods=["POST"])
        self.add_endpoint(
            "/load_discussion", "load_discussion", self.load_discussion, methods=["POST"]
        )
        self.add_endpoint(
            "/delete_discussion",
            "delete_discussion",
            self.delete_discussion,
            methods=["POST"],
        )

        self.add_endpoint(
            "/update_message", "update_message", self.update_message, methods=["GET"]
        )
        self.add_endpoint(
            "/message_rank_up", "message_rank_up", self.message_rank_up, methods=["GET"]
        )
        self.add_endpoint(
            "/message_rank_down", "message_rank_down", self.message_rank_down, methods=["GET"]
        )
        self.add_endpoint(
            "/delete_message", "delete_message", self.delete_message, methods=["GET"]
        )
        
        self.add_endpoint(
            "/set_binding", "set_binding", self.set_binding, methods=["POST"]
        )
        
        self.add_endpoint(
            "/set_model", "set_model", self.set_model, methods=["POST"]
        )
        
        self.add_endpoint(
            "/update_model_params", "update_model_params", self.update_model_params, methods=["POST"]
        )

        self.add_endpoint(
            "/get_config", "get_config", self.get_config, methods=["GET"]
        )
        
        self.add_endpoint(
            "/get_available_models", "get_available_models", self.get_available_models, methods=["GET"]
        )


        self.add_endpoint(
            "/extensions", "extensions", self.extensions, methods=["GET"]
        )

        self.add_endpoint(
            "/training", "training", self.training, methods=["GET"]
        )
        self.add_endpoint(
            "/main", "main", self.main, methods=["GET"]
        )
        
        self.add_endpoint(
            "/settings", "settings", self.settings, methods=["GET"]
        )

        self.add_endpoint(
            "/help", "help", self.help, methods=["GET"]
        )
        
        self.add_endpoint(
            "/get_generation_status", "get_generation_status", self.get_generation_status, methods=["GET"]
        )
        
        self.add_endpoint(
            "/update_setting", "update_setting", self.update_setting, methods=["POST"]
        )
        self.add_endpoint(
            "/apply_settings", "apply_settings", self.apply_settings, methods=["POST"]
        )
        

        self.add_endpoint(
            "/save_settings", "save_settings", self.save_settings, methods=["POST"]
        )

        self.add_endpoint(
            "/get_current_personality", "get_current_personality", self.get_current_personality, methods=["GET"]
        )
        

        self.add_endpoint(
            "/get_all_personalities", "get_all_personalities", self.get_all_personalities, methods=["GET"]
        )

        self.add_endpoint(
            "/get_personality", "get_personality", self.get_personality, methods=["GET"]
        )
        
        
        self.add_endpoint(
            "/reset", "reset", self.reset, methods=["GET"]
        )
        
        self.add_endpoint(
            "/export_multiple_discussions", "export_multiple_discussions", self.export_multiple_discussions, methods=["POST"]
        )      
        
    def export_multiple_discussions(self):
        data = request.get_json()
        discussion_ids = data["discussion_ids"]
        discussions = self.db.export_discussions_to_json(discussion_ids)
        return jsonify(discussions)
          
        
    def reset(self):
        os.kill(os.getpid(), signal.SIGINT)  # Send the interrupt signal to the current process
        subprocess.Popen(['python', 'app.py'])  # Restart the app using subprocess

        return 'App is resetting...'

    def save_settings(self):
        save_config(self.config, self.config_file_path)
        if self.config["debug"]:
            print("Configuration saved")
        # Tell that the setting was changed
        self.socketio.emit('save_settings', {"status":True})
        return jsonify({"status":True})
    

    def get_current_personality(self):
        return jsonify({"personality":self.personality.as_dict()})
    
    def get_all_personalities(self):
        personalities_folder = Path("./personalities")
        personalities = {}
        for language_folder in personalities_folder.iterdir():
            if language_folder.is_dir():
                personalities[language_folder.name] = {}
                for category_folder in  language_folder.iterdir():
                    if category_folder.is_dir():
                        personalities[language_folder.name][category_folder.name] = []
                        for personality_folder in category_folder.iterdir():
                            if personality_folder.is_dir():
                                try:
                                    personality_info = {}
                                    config_path = personality_folder / 'config.yaml'
                                    with open(config_path) as config_file:
                                        config_data = yaml.load(config_file, Loader=yaml.FullLoader)
                                        personality_info['name'] = config_data.get('name',"No Name")
                                        personality_info['description'] = config_data.get('personality_description',"")
                                        personality_info['author'] = config_data.get('creator', 'ParisNeo')
                                        personality_info['version'] = config_data.get('version', '1.0.0')
                                    scripts_path = personality_folder / 'scripts'
                                    personality_info['has_scripts'] = scripts_path.is_dir()
                                    assets_path = personality_folder / 'assets'
                                    gif_logo_path = assets_path / 'logo.gif'
                                    webp_logo_path = assets_path / 'logo.webp'
                                    png_logo_path = assets_path / 'logo.png'
                                    jpg_logo_path = assets_path / 'logo.jpg'
                                    jpeg_logo_path = assets_path / 'logo.jpeg'
                                    bmp_logo_path = assets_path / 'logo.bmp'
                                    
                                    personality_info['has_logo'] = png_logo_path.is_file() or gif_logo_path.is_file()
                                    
                                    if gif_logo_path.exists():
                                        personality_info['avatar'] = str(gif_logo_path).replace("\\","/")
                                    elif webp_logo_path.exists():
                                        personality_info['avatar'] = str(webp_logo_path).replace("\\","/")
                                    elif png_logo_path.exists():
                                        personality_info['avatar'] = str(png_logo_path).replace("\\","/")
                                    elif jpg_logo_path.exists():
                                        personality_info['avatar'] = str(jpg_logo_path).replace("\\","/")
                                    elif jpeg_logo_path.exists():
                                        personality_info['avatar'] = str(jpeg_logo_path).replace("\\","/")
                                    elif bmp_logo_path.exists():
                                        personality_info['avatar'] = str(bmp_logo_path).replace("\\","/")
                                    else:
                                        personality_info['avatar'] = ""
                                    personalities[language_folder.name][category_folder.name].append(personality_info)
                                except:
                                    print(f"Couldn't load personality from {personality_folder}")
        return json.dumps(personalities)
    
    def get_personality():
        lang = request.args.get('language')
        category = request.args.get('category')
        name = request.args.get('name')
        personality_folder = Path("personalities")/f"{lang}"/f"{category}"/f"{name}"
        personality_path = personality_folder/f"config.yaml"
        personality_info = {}
        with open(personality_path) as config_file:
            config_data = yaml.load(config_file, Loader=yaml.FullLoader)
            personality_info['name'] = config_data.get('name',"unnamed")
            personality_info['description'] = config_data.get('personality_description',"")
            personality_info['author'] = config_data.get('creator', 'ParisNeo')
            personality_info['version'] = config_data.get('version', '1.0.0')
        scripts_path = personality_folder / 'scripts'
        personality_info['has_scripts'] = scripts_path.is_dir()
        assets_path = personality_folder / 'assets'
        gif_logo_path = assets_path / 'logo.gif'
        webp_logo_path = assets_path / 'logo.webp'
        png_logo_path = assets_path / 'logo.png'
        jpg_logo_path = assets_path / 'logo.jpg'
        jpeg_logo_path = assets_path / 'logo.jpeg'
        bmp_logo_path = assets_path / 'logo.bmp'
        
        personality_info['has_logo'] = png_logo_path.is_file() or gif_logo_path.is_file()
        
        if gif_logo_path.exists():
            personality_info['avatar'] = str(gif_logo_path).replace("\\","/")
        elif webp_logo_path.exists():
            personality_info['avatar'] = str(webp_logo_path).replace("\\","/")
        elif png_logo_path.exists():
            personality_info['avatar'] = str(png_logo_path).replace("\\","/")
        elif jpg_logo_path.exists():
            personality_info['avatar'] = str(jpg_logo_path).replace("\\","/")
        elif jpeg_logo_path.exists():
            personality_info['avatar'] = str(jpeg_logo_path).replace("\\","/")
        elif bmp_logo_path.exists():
            personality_info['avatar'] = str(bmp_logo_path).replace("\\","/")
        else:
            personality_info['avatar'] = ""
        return json.dumps(personality_info)
        
    # Settings (data: {"setting_name":<the setting name>,"setting_value":<the setting value>})
    def update_setting(self):
        data = request.get_json()
        setting_name = data['setting_name']
        if setting_name== "temperature":
            self.config["temperature"]=float(data['setting_value'])
        elif setting_name== "n_predict":
            self.config["n_predict"]=int(data['setting_value'])
        elif setting_name== "top_k":
            self.config["top_k"]=int(data['setting_value'])
        elif setting_name== "top_p":
            self.config["top_p"]=float(data['setting_value'])
            
        elif setting_name== "repeat_penalty":
            self.config["repeat_penalty"]=float(data['setting_value'])
        elif setting_name== "repeat_last_n":
            self.config["repeat_last_n"]=int(data['setting_value'])

        elif setting_name== "n_threads":
            self.config["n_threads"]=int(data['setting_value'])
        elif setting_name== "ctx_size":
            self.config["ctx_size"]=int(data['setting_value'])


        elif setting_name== "language":
            self.config["language"]=data['setting_value']

        elif setting_name== "personality_language":
            back_language = self.config["personality_language"]
            if self.config["personality_language"]!=data['setting_value']:
                self.config["personality_language"]=data['setting_value']
                personalities_categories_dir = Path(f'./personalities/{self.config["personality_language"]}')  # replace with the actual path to the models folder
                cats = [f.stem for f in personalities_categories_dir.iterdir() if f.is_dir()]

                if len(cats)>0:
                    back_category = self.config["personality_category"]
                    self.config["personality_category"]=cats[0]
                    try:
                        personalities_dir = Path(f'./personalities/{self.config["personality_language"]}/{self.config["personality_category"]}')  # replace with the actual path to the models folder
                        pers = [f.stem for f in personalities_dir.iterdir() if f.is_dir()]
                    except Exception as ex:
                        pers=[]
                        if self.config["debug"]:
                            print(f"No personalities found. Using default one {ex}")
                    if len(pers)>0:
                        self.config["personality"]=pers[0]
                        personality_fn = f"personalities/{self.config['personality_language']}/{self.config['personality_category']}/{self.config['personality']}"
                        self.personality.load_personality(personality_fn)
                    else:
                        self.config["personality_language"]=back_language
                        self.config["personality_category"]=back_category
                        return jsonify({'setting_name': data['setting_name'], "status":False})
                else:
                    self.config["personality_language"]=back_language
                    return jsonify({'setting_name': data['setting_name'], "status":False})
                
        elif setting_name== "personality_category":
            back_category = self.config["personality_category"]
            if self.config["personality_category"]!=data['setting_value']:
                self.config["personality_category"]=data['setting_value']
                pers = json.loads(self.list_personalities().data.decode("utf8"))
                if len(pers)>0:
                    self.config["personality"]=pers[0]
                    personality_fn = f"personalities/{self.config['personality_language']}/{self.config['personality_category']}/{self.config['personality']}"
                    try:
                        self.personality.load_personality(personality_fn)
                        if self.config["debug"]:
                            print(self.personality)
                    except:
                        print(f"couldn't load personality from {personality_fn}")
                        return jsonify({'setting_name': data['setting_name'], "status":False})
                else:
                    self.config["personality_category"]=back_category
                    return jsonify({'setting_name': data['setting_name'], "status":False})

        elif setting_name== "personality":
            self.config["personality"]=data['setting_value']
            personality_fn = f"personalities/{self.config['personality_language']}/{self.config['personality_category']}/{self.config['personality']}"
            self.personality.load_personality(personality_fn)
        elif setting_name== "override_personality_model_parameters":
            self.config["override_personality_model_parameters"]=bool(data['setting_value'])
            
            


        elif setting_name== "model":
            self.config["model"]=data['setting_value']
            print("update_settings : New model selected")            

        elif setting_name== "binding":
            if self.config['binding']!= data['setting_value']:
                print(f"New binding selected : {data['setting_value']}")
                self.config["binding"]=data['setting_value']
                try:
                    self.binding = self.process.load_binding(self.config["binding"], install=True)

                except Exception as ex:
                    print("Couldn't build binding")
                    return jsonify({'setting_name': data['setting_name'], "status":False, 'error':str(ex)})
            else:
                if self.config["debug"]:
                    print(f"Configuration {data['setting_name']} set to {data['setting_value']}")
                return jsonify({'setting_name': data['setting_name'], "status":True})

        else:
            if self.config["debug"]:
                print(f"Configuration {data['setting_name']} couldn't be set to {data['setting_value']}")
            return jsonify({'setting_name': data['setting_name'], "status":False})

        if self.config["debug"]:
            print(f"Configuration {data['setting_name']} set to {data['setting_value']}")
            
        print(f"Configuration {data['setting_name']} updated")
        # Tell that the setting was changed
        return jsonify({'setting_name': data['setting_name'], "status":True})


    def apply_settings(self):
        result = self.process.set_config(self.config)
        print("Set config results:")
        print(result)
        return jsonify(result)

    def list_bindings(self):
        bindings_dir = Path('./bindings')  # replace with the actual path to the models folder
        bindings = [f.stem for f in bindings_dir.iterdir() if f.is_dir() and f.stem!="__pycache__"]
        return jsonify(bindings)


    def list_models(self):
        if self.binding is not None:
            models = self.binding.list_models(self.config)
            return jsonify(models)
        else:
            return jsonify([])
    

    def list_personalities_languages(self):
        personalities_languages_dir = Path(f'./personalities')  # replace with the actual path to the models folder
        personalities_languages = [f.stem for f in personalities_languages_dir.iterdir() if f.is_dir()]
        return jsonify(personalities_languages)

    def list_personalities_categories(self):
        personalities_categories_dir = Path(f'./personalities/{self.config["personality_language"]}')  # replace with the actual path to the models folder
        personalities_categories = [f.stem for f in personalities_categories_dir.iterdir() if f.is_dir()]
        return jsonify(personalities_categories)
    
    def list_personalities(self):
        try:
            personalities_dir = Path(f'./personalities/{self.config["personality_language"]}/{self.config["personality_category"]}')  # replace with the actual path to the models folder
            personalities = [f.stem for f in personalities_dir.iterdir() if f.is_dir()]
        except Exception as ex:
            personalities=[]
            if self.config["debug"]:
                print(f"No personalities found. Using default one {ex}")
        return jsonify(personalities)

    def list_languages(self):
        lanuguages= [
        { "value": "en-US", "label": "English" },
        { "value": "fr-FR", "label": "Français" },
        { "value": "ar-AR", "label": "العربية" },
        { "value": "it-IT", "label": "Italiano" },
        { "value": "de-DE", "label": "Deutsch" },
        { "value": "nl-XX", "label": "Dutch" },
        { "value": "zh-CN", "label": "中國人" }
        ]
        return jsonify(lanuguages)


    def list_discussions(self):
        discussions = self.db.get_discussions()
        return jsonify(discussions)


    def set_personality(self):
        lang = request.args.get('language')
        category = request.args.get('category')
        name = request.args.get('name')
        self.config['personality_language'] = lang
        self.config['personality_category'] = category
        self.config['personality'] = name
        result = self.process.set_config(self.config)
        return jsonify(result)

    def delete_personality(self):
        lang = request.args.get('language')
        category = request.args.get('category')
        name = request.args.get('name')
        path = Path("personalities")/lang/category/name
        try:
            shutil.rmtree(path)
            return jsonify({'status':'success'})
        except Exception as ex:
            return jsonify({'status':'failure','error':str(ex)})

    def add_endpoint(
        self,
        endpoint=None,
        endpoint_name=None,
        handler=None,
        methods=["GET"],
        *args,
        **kwargs,
    ):
        self.app.add_url_rule(
            endpoint, endpoint_name, handler, methods=methods, *args, **kwargs
        )

    def index(self):
        return render_template("index.html")
    
    def serve_static(self, filename):
        root_dir = os.getcwd()
        if "use_new_ui" in self.config:
            if self.config["use_new_ui"]:
                path = os.path.join(root_dir, 'web/dist/')+"/".join(filename.split("/")[:-1])
            else:
                path = os.path.join(root_dir, 'static/')+"/".join(filename.split("/")[:-1])
        else:
            path = os.path.join(root_dir, 'static/')+"/".join(filename.split("/")[:-1])
                            
        fn = filename.split("/")[-1]
        return send_from_directory(path, fn)

    def serve_personalities(self, filename):
        root_dir = os.getcwd()
        path = os.path.join(root_dir, 'personalities/')+"/".join(filename.split("/")[:-1])
                            
        fn = filename.split("/")[-1]
        return send_from_directory(path, fn)

    def serve_outputs(self, filename):
        root_dir = os.getcwd()
        path = os.path.join(root_dir, 'outputs/')+"/".join(filename.split("/")[:-1])
                            
        fn = filename.split("/")[-1]
        return send_from_directory(path, fn)

    def export(self):
        return jsonify(self.db.export_to_json())

    def export_discussion(self):
        return jsonify({"discussion_text":self.get_discussion_to()})
    

            
    def get_generation_status(self):
        return jsonify({"status":self.process.is_generating.value==1}) 
    
    def stop_gen(self):
        self.cancel_gen = True
        self.process.cancel_generation()
        print("Stop generation received")
        return jsonify({"status": "ok"})         

           
    def rename(self):
        data = request.get_json()
        title = data["title"]
        self.current_discussion.rename(title)
        return "renamed successfully"
    
    def edit_title(self):
        data = request.get_json()
        title = data["title"]
        discussion_id = data["id"]
        self.current_discussion = Discussion(discussion_id, self.db)
        self.current_discussion.rename(title)
        return "title renamed successfully"
    
    def load_discussion(self):
        print("- Loading discussion")
        data = request.get_json()
        print("    Recovered json data")
        if "id" in data:
            discussion_id = data["id"]
            self.current_discussion = Discussion(discussion_id, self.db)
        else:
            if self.current_discussion is not None:
                discussion_id = self.current_discussion.discussion_id
                self.current_discussion = Discussion(discussion_id, self.db)
            else:
                self.current_discussion = self.db.create_discussion()
        print(f"    Discussion id :{discussion_id}")
        messages = self.current_discussion.get_messages()

        
        return jsonify(messages), {'Content-Type': 'application/json; charset=utf-8'}

    def delete_discussion(self):
        data = request.get_json()
        discussion_id = data["id"]
        self.current_discussion = Discussion(discussion_id, self.db)
        self.current_discussion.delete_discussion()
        self.current_discussion = None
        return jsonify({})

    def update_message(self):
        discussion_id = request.args.get("id")
        new_message = request.args.get("message")
        try:
            self.current_discussion.update_message(discussion_id, new_message)
            return jsonify({"status": "ok"})
        except Exception as ex:
            return jsonify({"status": "nok", "error":str(ex)})


    def message_rank_up(self):
        discussion_id = request.args.get("id")
        try:
            new_rank = self.current_discussion.message_rank_up(discussion_id)
            return jsonify({"status": "ok", "new_rank": new_rank})
        except Exception as ex:
            return jsonify({"status": "nok", "error":str(ex)})

    def message_rank_down(self):
        discussion_id = request.args.get("id")
        try:
            new_rank = self.current_discussion.message_rank_down(discussion_id)
            return jsonify({"status": "ok", "new_rank": new_rank})
        except Exception as ex:
            return jsonify({"status": "nok", "error":str(ex)})

    def delete_message(self):
        discussion_id = request.args.get("id")
        if self.current_discussion is None:
            return jsonify({"status": False,"message":"No discussion is selected"})
        else:
            new_rank = self.current_discussion.delete_message(discussion_id)
            return jsonify({"status":True,"new_rank": new_rank})


    def new_discussion(self):
        title = request.args.get("title")
        timestamp = self.create_new_discussion(title)
        
        # Return a success response
        return json.dumps({"id": self.current_discussion.discussion_id, "time": timestamp, "welcome_message":self.personality.welcome_message, "sender":self.personality.name})

    def set_binding(self):
        data = request.get_json()
        binding =  str(data["binding"])
        if self.config['binding']!= binding:
            print("New binding selected")
            
            self.config['binding'] = binding
            try:
                binding_ =self.process.load_binding(config["binding"],True)
                models = binding_.list_models(self.config)
                if len(models)>0:      
                    self.binding = binding_
                    self.config['model'] = models[0]
                    # Build chatbot
                    return jsonify(self.process.set_config(self.config))
                else:
                    return jsonify({"status": "no_models_found"})
            except :
                return jsonify({"status": "failed"})
                
        return jsonify({"status": "error"})

    def set_model(self):
        data = request.get_json()
        model =  str(data["model"])
        if self.config['model']!= model:
            print("set_model: New model selected")            
            self.config['model'] = model
            # Build chatbot            
            return jsonify(self.process.set_config(self.config))

        return jsonify({"status": "succeeded"})    
    
    def update_model_params(self):
        data = request.get_json()
        binding =  str(data["binding"])
        model =  str(data["model"])
        personality_language =  str(data["personality_language"])
        personality_category =  str(data["personality_category"])
        personality =  str(data["personality"])
        
        if self.config['binding']!=binding or  self.config['model'] != model:
            print("update_model_params: New model selected")
            
            self.config['binding'] = binding
            self.config['model'] = model

        self.config['personality_language'] = personality_language
        self.config['personality_category'] = personality_category
        self.config['personality'] = personality

        personality_fn = f"personalities/{self.config['personality_language']}/{self.config['personality_category']}/{self.config['personality']}"
        print(f"Loading personality : {personality_fn}")

        self.config['n_predict'] = int(data["nPredict"])
        self.config['seed'] = int(data["seed"])
        self.config['model'] = str(data["model"])
        self.config['voice'] = str(data["voice"])
        self.config['language'] = str(data["language"])
        
        self.config['temperature'] = float(data["temperature"])
        self.config['top_k'] = int(data["topK"])
        self.config['top_p'] = float(data["topP"])
        self.config['repeat_penalty'] = float(data["repeatPenalty"])
        self.config['repeat_last_n'] = int(data["repeatLastN"])

        save_config(self.config, self.config_file_path)
        
        
        # Fixed missing argument
        self.binding = self.process.rebuild_binding(self.config)

        print("==============================================")
        print("Parameters changed to:")
        print(f"\tBinding:{self.config['binding']}")
        print(f"\tModel:{self.config['model']}")
        print(f"\tPersonality language:{self.config['personality_language']}")
        print(f"\tPersonality category:{self.config['personality_category']}")
        print(f"\tPersonality:{self.config['personality']}")
        print(f"\tLanguage:{self.config['language']}")
        print(f"\tVoice:{self.config['voice']}")
        print(f"\tTemperature:{self.config['temperature']}")
        print(f"\tNPredict:{self.config['n_predict']}")
        print(f"\tSeed:{self.config['seed']}")
        print(f"\top_k:{self.config['top_k']}")
        print(f"\top_p:{self.config['top_p']}")
        print(f"\trepeat_penalty:{self.config['repeat_penalty']}")
        print(f"\trepeat_last_n:{self.config['repeat_last_n']}")
        print("==============================================")

        return jsonify(self.process.set_config(self.config))
    
    
    def get_available_models(self):
        """Get the available models

        Returns:
            _type_: _description_
        """
        if self.binding is None:
            return jsonify([])
        model_list = self.binding.get_available_models()

        models = []
        for model in model_list:
            try:
                filename = model.get('filename',"")
                server = model.get('server',"")
                image_url = model.get("icon", '/images/default_model.png')
                license = model.get("license", 'unknown')
                owner = model.get("owner", 'unknown')
                owner_link = model.get("owner_link", 'https://github.com/ParisNeo')
                filesize = int(model.get('filesize',0))
                description = model.get('description',"")
                if server.endswith("/"):
                    path = f'{server}{filename}'
                else:
                    path = f'{server}/{filename}'
                local_path = Path(f'./models/{self.config["binding"]}/{filename}')
                is_installed = local_path.exists()
                models.append({
                    'title': filename,
                    'icon': image_url,  # Replace with the path to the model icon
                    'license': license,
                    'owner': owner,
                    'owner_link': owner_link,
                    'description': description,
                    'isInstalled': is_installed,
                    'path': path,
                    'filesize': filesize,
                })
            except Exception as ex:
                print("#################################")
                print(ex)
                print("#################################")
                print(f"Problem with model : {model}")
        return jsonify(models)

    
    def get_config(self):
        return jsonify(self.config)

    def main(self):
        return render_template("main.html")
    
    def settings(self):
        return render_template("settings.html")

    def help(self):
        return render_template("help.html")
    
    def training(self):
        return render_template("training.html")

    def extensions(self):
        return render_template("extensions.html")

    

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Start the chatbot Flask app.")
    parser.add_argument(
        "-c", "--config", type=str, default="default", help="Sets the configuration file to be used."
    )

    parser.add_argument(
        "-p", "--personality", type=str, default=None, help="Selects the personality to be using."
    )

    parser.add_argument(
        "-s", "--seed", type=int, default=None, help="Force using a specific seed value."
    )

    parser.add_argument(
        "-m", "--model", type=str, default=None, help="Force using a specific model."
    )
    parser.add_argument(
        "--temp", type=float, default=None, help="Temperature parameter for the model."
    )
    parser.add_argument(
        "--n_predict",
        type=int,
        default=None,
        help="Number of tokens to predict at each step.",
    )
    parser.add_argument(
        "--n_threads",
        type=int,
        default=None,
        help="Number of threads to use.",
    )
    parser.add_argument(
        "--top_k", type=int, default=None, help="Value for the top-k sampling."
    )
    parser.add_argument(
        "--top_p", type=float, default=None, help="Value for the top-p sampling."
    )
    parser.add_argument(
        "--repeat_penalty", type=float, default=None, help="Penalty for repeated tokens."
    )
    parser.add_argument(
        "--repeat_last_n",
        type=int,
        default=None,
        help="Number of previous tokens to consider for the repeat penalty.",
    )
    parser.add_argument(
        "--ctx_size",
        type=int,
        default=None,#2048,
        help="Size of the context window for the model.",
    )
    parser.add_argument(
        "--debug",
        dest="debug",
        action="store_true",
        default=None,
        help="launch Flask server in debug mode",
    )
    parser.add_argument(
        "--host", type=str, default=None, help="the hostname to listen on"
    )
    parser.add_argument("--port", type=int, default=None, help="the port to listen on")
    parser.add_argument(
        "--db_path", type=str, default=None, help="Database path"
    )
    args = parser.parse_args()

    # The default configuration must be kept unchanged as it is committed to the repository, 
    # so we have to make a copy that is not comitted
    default_config = load_config(f"configs/default.yaml")

    if args.config=="default":
        args.config = "local_default"
        if not Path(f"configs/local_default.yaml").exists():
            print("No local configuration file found. Building from scratch")
            shutil.copy(f"configs/default.yaml", f"configs/local_default.yaml")

    config_file_path = f"configs/{args.config}.yaml"
    config = load_config(config_file_path)

    if "version" not in config or int(config["version"])<int(default_config["version"]):
        #Upgrade old configuration files to new format
        print("Configuration file is very old. Replacing with default configuration")
        for key, value in default_config.items():
            if key not in config:
                config[key] = value
        config["version"]=int(default_config["version"])
        save_config(config, config_file_path)

    # Override values in config with command-line arguments
    for arg_name, arg_value in vars(args).items():
        if arg_value is not None:
            config[arg_name] = arg_value

    # executor = ThreadPoolExecutor(max_workers=1)
    # app.config['executor'] = executor
    bot = Gpt4AllWebUI(app, socketio, config, config_file_path)

    # chong Define custom WebSocketHandler with error handling 
    class CustomWebSocketHandler(WebSocketHandler):
        def handle_error(self, environ, start_response, e):
            # Handle the error here
            print("WebSocket error:", e)
            super().handle_error(environ, start_response, e)
    
    url = f'http://{config["host"]}:{config["port"]}'
    
    print(f"Please open your browser and go to {url} to view the ui")

    # chong -add socket server    
    app.config['debug'] = config["debug"]

    if config["debug"]:
        print("debug mode:true")    
    else:
        print("debug mode:false")
        
    http_server = WSGIServer((config["host"], config["port"]), app, handler_class=WebSocketHandler)
    http_server.serve_forever()