"""
测试 04: 多会话并发测试
模拟多架无人机同时连接
"""
import asyncio
import json
import sys
import time
from pathlib import Path

import websockets

sys.path.insert(0, str(Path(__file__).parent))

from test_config import SERVER_URL, AUTH_TOKEN


async def test_concurrent():
    """并发会话测试"""
    print("=" * 60)
    print("  测试 04: 多会话并发测试")
    print("=" * 60)
    print()
    
    num_sessions = 4  # 模拟 4 架无人机
    tasks = []
    
    print(f"🚀 启动 {num_sessions} 个并发会话...")
    print()
    
    # 创建多个会话
    for i in range(num_sessions):
        task = asyncio.create_task(
            run_session(i + 1, f"drone-{i+1:03d}")
        )
        tasks.append(task)
    
    # 等待所有会话完成
    results = await asyncio.gather(*tasks, return_exceptions=True)
    
    # 汇总结果
    print("\n" + "=" * 60)
    print("  并发测试汇总")
    print("=" * 60)
    
    success_count = 0
    fail_count = 0
    
    for i, result in enumerate(results):
        drone_id = f"drone-{i+1:03d}"
        if isinstance(result, Exception):
            print(f"  ❌ {drone_id}: 异常 - {result}")
            fail_count += 1
        elif result.get("success"):
            print(f"  ✅ {drone_id}: 通过 (LLM={result.get('llm_ms')}ms, TTS={result.get('tts_ms')}ms)")
            success_count += 1
        else:
            print(f"  ❌ {drone_id}: 失败 - {result.get('error')}")
            fail_count += 1
    
    print()
    print(f"  总计: {success_count} 通过, {fail_count} 失败")
    print("=" * 60)
    
    return fail_count == 0


async def run_session(session_num: int, device_id: str) -> dict:
    """运行单个会话"""
    session_id = f"test-session-{session_num:03d}"
    turn_id = f"test-turn-{session_num:03d}"
    
    try:
        async with websockets.connect(SERVER_URL) as ws:
            # 1. 建立会话
            session_start = {
                "type": "session.start",
                "proto_version": "1.0",
                "transport_profile": "text_uplink",
                "session_id": session_id,
                "auth_token": AUTH_TOKEN,
                "client": {
                    "device_id": device_id,
                    "locale": "zh-CN",
                    "capabilities": {
                        "playback_sample_rate_hz": 24000,
                        "prefer_tts_codec": "pcm_s16le"
                    },
                    "protocol": {"dialog_result": "cloud_voice_dialog_v1"},
                }
            }
            
            await ws.send(json.dumps(session_start, ensure_ascii=False))
            
            # 接收 session.ready
            msg = await asyncio.wait_for(ws.recv(), timeout=10)
            data = json.loads(msg)
            
            if data.get("type") != "session.ready":
                return {"success": False, "error": f"期望 session.ready，收到 {data.get('type')}"}
            
            print(f"  [{device_id}] ✅ 会话建立")
            
            # 2. 发送测试文本
            test_texts = [
                "你好",
                "起飞",
                "返航",
                "降落",
            ]
            
            test_text = test_texts[(session_num - 1) % len(test_texts)]
            
            turn_text = {
                "type": "turn.text",
                "proto_version": "1.0",
                "transport_profile": "text_uplink",
                "turn_id": turn_id,
                "text": test_text,
                "is_final": True,
                "source": "device_stt"
            }
            
            t_start = time.time()
            await ws.send(json.dumps(turn_text, ensure_ascii=False))
            print(f"  [{device_id}] → {test_text}")
            
            # 3. 接收响应
            dialog_result = None
            audio_chunks = []
            metrics = {}
            
            while True:
                msg = await asyncio.wait_for(ws.recv(), timeout=60)
                
                if isinstance(msg, bytes):
                    audio_chunks.append(msg)
                else:
                    data = json.loads(msg)
                    msg_type = data.get("type")
                    
                    if msg_type == "dialog_result":
                        dialog_result = data
                        routing = data.get("routing")
                        print(f"  [{device_id}] ← routing={routing}")
                    
                    elif msg_type == "turn.complete":
                        metrics = data.get("metrics", {})
                        break
                    
                    elif msg_type == "error":
                        return {
                            "success": False,
                            "error": f"{data.get('code')}: {data.get('message')}"
                        }
            
            t_end = time.time()
            total_time = t_end - t_start
            
            print(f"  [{device_id}] ✅ 完成 (耗时={total_time:.2f}s)")
            
            # 结束会话
            session_end = {
                "type": "session.end",
                "proto_version": "1.0",
                "session_id": session_id
            }
            await ws.send(json.dumps(session_end))
            
            return {
                "success": True,
                "device_id": device_id,
                "routing": dialog_result.get("routing") if dialog_result else None,
                "llm_ms": metrics.get("llm_ms"),
                "tts_ms": metrics.get("tts_first_byte_ms"),
                "total_time": total_time,
                "audio_chunks": len(audio_chunks)
            }
    
    except Exception as e:
        return {
            "success": False,
            "error": str(e)
        }


async def main():
    success = await test_concurrent()
    
    sys.exit(0 if success else 1)


if __name__ == "__main__":
    asyncio.run(main())