AgentCoreService/api_server.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
import logging
from calendar import prmonth

import werkzeug.exceptions
from flask import Flask, request, jsonify
from datetime import datetime, timedelta
from argparse import ArgumentParser

from openai import OpenAI

import chat_service
import configs
import json
import logging_service
import prompt_templates
from dialogue_manager import DialogueManager
from history_dialogue_service import HistoryDialogueService
from user_manager import MySQLUserManager, MySQLUserRelationManager
from user_profile_extractor import UserProfileExtractor

app = Flask('agent_api_server')
logger = logging_service.logger

def wrap_response(code, msg=None, data=None):
    resp = {
        'code': code,
        'msg': msg
    }
    if code == 200 and not msg:
        resp['msg'] = 'success'
    if data:
        resp['data'] = data
    return jsonify(resp)

@app.route('/api/listStaffs', methods=['GET'])
def list_staffs():
    staff_data = app.user_relation_manager.list_staffs()
    return wrap_response(200, data=staff_data)

@app.route('/api/getStaffProfile', methods=['GET'])
def get_staff_profile():
    staff_id = request.args['staff_id']
    profile = app.user_manager.get_staff_profile(staff_id)
    if not profile:
        return wrap_response(404, msg='staff not found')
    else:
        return wrap_response(200, data=profile)

@app.route('/api/getUserProfile', methods=['GET'])
def get_user_profile():
    user_id = request.args['user_id']
    profile = app.user_manager.get_user_profile(user_id)
    if not profile:
        resp = {
            'code': 404,
            'msg': 'user not found'
        }
    else:
        resp = {
            'code': 200,
            'msg': 'success',
            'data': profile
        }
    return jsonify(resp)

@app.route('/api/listUsers', methods=['GET'])
def list_users():
    user_name = request.args.get('user_name', None)
    user_union_id = request.args.get('user_union_id', None)
    if not user_name and not user_union_id:
        resp = {
            'code': 400,
            'msg': 'user_name or user_union_id is required'
        }
        return jsonify(resp)
    data = app.user_manager.list_users(user_name=user_name, user_union_id=user_union_id)
    return jsonify({'code': 200, 'data': data})

@app.route('/api/getDialogueHistory', methods=['GET'])
def get_dialogue_history():
    staff_id = request.args['staff_id']
    user_id = request.args['user_id']
    recent_minutes = int(request.args.get('recent_minutes', 1440))
    dialogue_history = app.history_dialogue_service.get_dialogue_history(staff_id, user_id, recent_minutes)
    return jsonify({'code': 200, 'data': dialogue_history})

@app.route('/api/listModels', methods=['GET'])
def list_models():
    models = [
        {
            'model_type': 'openai_compatible',
            'model_name': chat_service.VOLCENGINE_MODEL_DEEPSEEK_V3,
            'display_name': 'DeepSeek V3 on 火山'
        },
        {
            'model_type': 'openai_compatible',
            'model_name': chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_32K,
            'display_name': '豆包Pro 32K'
        },
        {
            'model_type': 'openai_compatible',
            'model_name': chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_1_5,
            'display_name': '豆包Pro 1.5'
        },
    ]
    return wrap_response(200, data=models)

@app.route('/api/listScenes', methods=['GET'])
def list_scenes():
    scenes = [
        {'scene': 'greeting', 'display_name': '问候'},
        {'scene': 'chitchat', 'display_name': '闲聊'},
        {'scene': 'profile_extractor', 'display_name': '画像提取'}
    ]
    return wrap_response(200, data=scenes)

@app.route('/api/getBasePrompt', methods=['GET'])
def get_base_prompt():
    scene = request.args['scene']
    prompt_map = {
        'greeting': prompt_templates.GENERAL_GREETING_PROMPT,
        'chitchat': prompt_templates.CHITCHAT_PROMPT_COZE,
        'profile_extractor': prompt_templates.USER_PROFILE_EXTRACT_PROMPT
    }
    model_map = {
        'greeting': chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_32K,
        'chitchat': chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_32K,
        'profile_extractor': chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_1_5
    }
    if scene not in prompt_map:
        return wrap_response(404, msg='scene not found')
    data = {
        'model_name': model_map[scene],
        'content': prompt_map[scene]
    }
    return wrap_response(200, data=data)

def run_openai_chat(messages, model_name, **kwargs):
    volcengine_models = [
        chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_32K,
        chat_service.VOLCENGINE_MODEL_DOUBAO_PRO_1_5,
        chat_service.VOLCENGINE_MODEL_DEEPSEEK_V3
    ]
    deepseek_models = [
        chat_service.DEEPSEEK_CHAT_MODEL,
    ]
    if model_name in volcengine_models:
        llm_client = OpenAI(api_key=chat_service.VOLCENGINE_API_TOKEN, base_url=chat_service.VOLCENGINE_BASE_URL)
        response = llm_client.chat.completions.create(
            messages=messages, model=model_name, **kwargs)
        return response
    elif model_name in deepseek_models:
        llm_client = OpenAI(api_key=chat_service.DEEPSEEK_API_TOKEN, base_url=chat_service.DEEPSEEK_BASE_URL)
        response = llm_client.chat.completions.create(
            messages=messages, model=model_name, temperature=1, top_p=0.7, max_tokens=1024)
        return response
    else:
        raise Exception('model not supported')

def run_extractor_prompt(req_data):
    prompt = req_data['prompt']
    user_profile = req_data['user_profile']
    staff_profile = req_data['staff_profile']
    dialogue_history = req_data['dialogue_history']
    model_name = req_data['model_name']
    prompt_context = {**staff_profile,
                      **user_profile,
                      'dialogue_history': UserProfileExtractor.compose_dialogue(dialogue_history)}
    prompt = prompt.format(**prompt_context)
    messages = [
        {"role": "system", "content": '你是一个专业的用户画像分析助手。'},
        {"role": "user", "content": prompt}
    ]
    tools = [UserProfileExtractor.get_extraction_function()]
    response = run_openai_chat(messages, model_name, tools=tools, temperature=0)
    tool_calls = response.choices[0].message.tool_calls
    if tool_calls:
        function_call = tool_calls[0]
        if function_call.function.name == 'update_user_profile':
            profile_info = json.loads(function_call.function.arguments)
            return {k: v for k, v in profile_info.items() if v}
        else:
            logger.error("llm does not return update_user_profile")
            return {}
    else:
        return {}

def run_chat_prompt(req_data):
    prompt = req_data['prompt']
    staff_profile = req_data['staff_profile']
    user_profile = req_data['user_profile']
    dialogue_history = req_data['dialogue_history']
    model_name = req_data['model_name']
    current_timestamp = req_data['current_timestamp'] / 1000
    prompt_context = {**staff_profile, **user_profile}
    current_hour = datetime.fromtimestamp(current_timestamp).hour
    prompt_context['last_interaction_interval'] = 0
    prompt_context['current_time_period'] = DialogueManager.get_time_context(current_hour)
    prompt_context['current_hour'] = current_hour
    prompt_context['if_first_interaction'] = False if dialogue_history else True
    last_message = dialogue_history[-1] if dialogue_history else {'role': 'assistant'}
    prompt_context['if_active_greeting'] = False if last_message['role'] == 'user' else True

    current_time_str = datetime.fromtimestamp(current_timestamp).strftime('%Y-%m-%d %H:%M:%S')
    system_prompt = {
        'role': 'system',
        'content': prompt.format(**prompt_context)
    }
    messages = [system_prompt]
    messages.extend(DialogueManager.compose_chat_messages_openai_compatible(dialogue_history, current_time_str))
    return run_openai_chat(messages, model_name, temperature=1, top_p=0.7, max_tokens=1024)

@app.route('/api/runPrompt', methods=['POST'])
def run_prompt():
    try:
        req_data = request.json
        logger.debug(req_data)
        scene = req_data['scene']
        if scene == 'profile_extractor':
            response = run_extractor_prompt(req_data)
            return wrap_response(200, data=response)
        else:
            response = run_chat_prompt(req_data)
            return wrap_response(200, data=response.choices[0].message.content)
    except Exception as e:
        logger.error(e)
        return wrap_response(500, msg='Error: {}'.format(e))

@app.errorhandler(werkzeug.exceptions.BadRequest)
def handle_bad_request(e):
    logger.error(e)
    return wrap_response(400, msg='Bad Request: {}'.format(e.description))


if __name__ == '__main__':
    parser = ArgumentParser()
    parser.add_argument('--prod', action='store_true')
    parser.add_argument('--host', default='127.0.0.1')
    parser.add_argument('--port', type=int, default=8083)
    parser.add_argument('--log-level', default='INFO')
    args = parser.parse_args()

    config = configs.get()
    logging_level = logging.getLevelName(args.log_level)
    logging_service.setup_root_logger(level=logging_level, logfile_name='agent_api_server.log')

    user_db_config = config['storage']['user']
    staff_db_config = config['storage']['staff']
    user_manager = MySQLUserManager(user_db_config['mysql'], user_db_config['table'], staff_db_config['table'])
    app.user_manager = user_manager

    wecom_db_config = config['storage']['user_relation']
    user_relation_manager = MySQLUserRelationManager(
        user_db_config['mysql'], wecom_db_config['mysql'],
        config['storage']['staff']['table'],
        user_db_config['table'],
        wecom_db_config['table']['staff'],
        wecom_db_config['table']['relation'],
        wecom_db_config['table']['user']
    )
    app.user_relation_manager = user_relation_manager
    app.history_dialogue_service = HistoryDialogueService(
        config['storage']['history_dialogue']['api_base_url']
    )

    app.run(debug=not args.prod, host=args.host, port=args.port)