#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8

import pytest
from datetime import datetime, timedelta
from typing import Dict, Optional, Tuple, Any
from unittest.mock import Mock, MagicMock
from agent_service import AgentService, MemoryQueueBackend
from message import MessageType
from user_manager import LocalUserManager
import time
import logging

class TestMessageQueues:
    """测试用消息队列实现"""
    def __init__(self, receive_queue, send_queue, human_queue):
        self.receive_queue = receive_queue
        self.send_queue = send_queue
        self.human_queue = human_queue

@pytest.fixture
def test_env():
    """测试环境初始化"""
    logging.getLogger().setLevel(logging.DEBUG)

    user_manager = LocalUserManager()

    receive_queue = MemoryQueueBackend()
    send_queue = MemoryQueueBackend()
    human_queue = MemoryQueueBackend()

    queues = TestMessageQueues(receive_queue, send_queue, human_queue)

    # 创建Agent服务实例
    service = AgentService(
        receive_backend=receive_queue,
        send_backend=send_queue,
        human_backend=human_queue,
        user_manager=user_manager
    )
    service.user_profile_extractor.extract_profile_info = Mock(return_value=None)

    # 替换LLM调用为模拟响应
    service._call_chat_api = Mock(return_value="模拟响应")

    return service, queues

def test_normal_conversation_flow(test_env):
    """测试正常对话流程"""
    service, queues = test_env
    service._get_agent_instance("user_id_0").message_aggregation_sec = 0

    # 准备测试消息
    test_msg = {
        "user_id": "user_id_0",
        "type": MessageType.TEXT,
        "text": "你好",
        "timestamp": int(time.time() * 1000),
    }
    queues.receive_queue.produce(test_msg)

    # 处理消息
    message = service.receive_queue.consume()
    if message:
        service.process_single_message(message)

    # 验证响应消息
    sent_msg = queues.send_queue.consume()
    assert sent_msg is not None
    assert sent_msg["user_id"] == "user_id_0"
    assert "模拟响应" in sent_msg["text"]

def test_aggregated_conversation_flow(test_env):
    """测试聚合对话流程"""
    service, queues = test_env
    service._get_agent_instance("user_id_0").message_aggregation_sec = 1

    # 准备测试消息
    ts_begin = int(time.time() * 1000)
    test_msg = {
        "user_id": "user_id_0",
        "type": MessageType.TEXT,
        "text": "你好",
        "timestamp": ts_begin,
    }
    queues.receive_queue.produce(test_msg)
    test_msg = {
        "user_id": "user_id_0",
        "type": MessageType.TEXT,
        "text": "我是老李",
        "timestamp": ts_begin + 0.5 * 1000,
    }
    queues.receive_queue.produce(test_msg)

    # 处理消息
    message = service.receive_queue.consume()
    if message:
        service.process_single_message(message)

    # 验证第一次响应消息
    sent_msg = queues.send_queue.consume()
    assert sent_msg is None

    message = service.receive_queue.consume()
    if message:
        service.process_single_message(message)
    # 验证第二次响应消息
    sent_msg = queues.send_queue.consume()
    assert sent_msg is None

    # 模拟定时器产生空消息触发响应
    service.process_single_message({
        "user_id": "user_id_0",
        "type": MessageType.AGGREGATION_TRIGGER,
        "timestamp": ts_begin + 2 * 1000
    })
    # 验证第三次响应消息
    sent_msg = queues.send_queue.consume()
    assert sent_msg is not None
    assert sent_msg["user_id"] == "user_id_0"
    assert "模拟响应" in sent_msg["text"]

def test_human_intervention_trigger(test_env):
    """测试触发人工干预"""
    service, queues = test_env
    service._get_agent_instance("user_id_0").message_aggregation_sec = 0

    # 准备需要人工干预的消息
    test_msg = {
        "user_id": "user_id_0",
        "type": MessageType.TEXT,
        "text": "我需要帮助！",
        "timestamp": int(time.time() * 1000),
    }
    queues.receive_queue.produce(test_msg)

    # 处理消息
    message = service.receive_queue.consume()
    if message:
        service.process_single_message(message)

    # 验证人工队列消息
    human_msg = queues.human_queue.consume()
    assert human_msg is not None
    assert human_msg["user_id"] == "user_id_0"
    assert "state" in human_msg

def test_initiative_conversation(test_env):
    """测试主动发起对话"""
    service, queues = test_env
    service._get_agent_instance("user_id_0").message_aggregation_sec = 0
    service._call_chat_api = Mock(return_value="主动发起模拟消息")

    # 设置Agent需要主动发起对话
    agent = service._get_agent_instance("user_id_0")
    agent.should_initiate_conversation = Mock(return_value=(True, MagicMock()))

    service._check_initiative_conversations()

    # 验证主动发起的消息
    sent_msg = queues.send_queue.consume()
    assert sent_msg is not None
    assert "主动发起" in sent_msg["text"]