#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
简单的API训练测试 - 使用标准库测试API
"""

import os
import sys
import urllib.request
import urllib.parse
import json
import time

# 设置完整的UTF-8编码环境
os.environ['PYTHONIOENCODING'] = 'utf-8'
os.environ['PYTHONLEGACYWINDOWSSTDIO'] = '0'

# Windows控制台编码设置
if os.name == 'nt':
    try:
        import subprocess
        subprocess.run(['chcp', '65001'], capture_output=True, shell=True, check=False)
        
        # 重新配置标准输出
        if hasattr(sys.stdout, 'reconfigure'):
            sys.stdout.reconfigure(encoding='utf-8', errors='replace')
            sys.stderr.reconfigure(encoding='utf-8', errors='replace')
    except Exception as e:
        print(f"警告: UTF-8编码设置失败: {e}")

def send_post_request(url, data):
    """发送POST请求"""
    try:
        json_data = json.dumps(data).encode('utf-8')
        req = urllib.request.Request(
            url, 
            data=json_data,
            headers={'Content-Type': 'application/json'}
        )
        
        with urllib.request.urlopen(req, timeout=30) as response:
            return response.getcode(), json.loads(response.read().decode('utf-8'))
    except Exception as e:
        return None, str(e)

def send_get_request(url):
    """发送GET请求"""
    try:
        with urllib.request.urlopen(url, timeout=10) as response:
            return response.getcode(), json.loads(response.read().decode('utf-8'))
    except Exception as e:
        return None, str(e)

def test_api_training():
    """测试API训练功能"""
    
    print("🧪 简单API训练测试")
    print("=" * 50)
    
    base_url = "http://127.0.0.1:5000"
    
    # 0. 测试线程输出
    print("0️⃣ 测试API线程输出机制...")
    status, response = send_post_request(f"{base_url}/api/test-thread-output", {})
    if status == 200:
        print("✅ 线程输出测试成功")
    else:
        print(f"❌ 线程输出测试失败: {response}")
    
    print("\n1️⃣ 测试简化训练...")
    status, response = send_post_request(f"{base_url}/api/test-training-simple", {})
    if status == 200:
        print("✅ 简化训练测试成功")
    else:
        print(f"❌ 简化训练测试失败: {response}")
    
    print("\n" + "="*50)
    
    # 1. 测试API连接
    print("🔍 测试API连接...")
    status, response = send_get_request(f"{base_url}/api/products")
    
    if status != 200:
        print(f"❌ API连接失败: {response}")
        print("💡 请确保API服务器已启动")
        return
    
    print("✅ API连接成功")
    
    # 2. 获取产品信息
    products = response.get('data', [])
    if not products:
        print("❌ 没有产品数据")
        return
    
    product_id = products[0]['product_id']
    product_name = products[0]['product_name']
    print(f"🎯 选择产品: {product_id} - {product_name}")
    
    # 3. 发送训练请求
    print(f"\n🚀 发送训练请求...")
    training_data = {
        "product_id": product_id,
        "model_type": "transformer",
        "epochs": 2,  # 快速测试
        "training_mode": "product"
    }
    
    print(f"📊 训练配置: {json.dumps(training_data, ensure_ascii=False)}")
    print("\n" + "="*60)
    print("🔍 请密切观察API服务器控制台输出！")
    print("🔍 应该看到以下调试信息：")
    print("   - 🚀🚀🚀 THREAD START: 准备启动训练线程")
    print("   - 🔥🔥🔥 TRAIN_TASK ENTRY: 函数已被调用！")
    print("   - 🚀 训练任务开始")
    print("   - 训练器调用和进度信息")
    print("="*60)
    
    # 发送训练请求
    status, response = send_post_request(f"{base_url}/api/training", training_data)
    
    if status == 200:
        task_id = response.get('task_id')
        print(f"\n✅ 训练请求成功")
        print(f"🆔 任务ID: {task_id}")
        print(f"💬 消息: {response.get('message')}")
        
        # 等待一段时间让训练开始
        print(f"\n⏳ 等待训练开始...")
        time.sleep(3)
        
        # 检查任务状态
        print(f"📊 检查训练状态...")
        status, response = send_get_request(f"{base_url}/api/training")
        
        if status == 200:
            tasks = response.get('data', [])
            for task in tasks:
                if task.get('task_id') == task_id:
                    print(f"📋 任务状态: {task.get('status')}")
                    if task.get('metrics'):
                        print(f"📈 指标: {task.get('metrics')}")
                    if task.get('error'):
                        print(f"❌ 错误: {task.get('error')}")
                    break
        
    else:
        print(f"❌ 训练请求失败")
        print(f"🔴 错误: {response}")
    
    print("\n" + "=" * 50)
    print("🎯 测试重点:")
    print("1. 检查API服务器控制台是否有调试输出")
    print("2. 确认线程是否正常启动")
    print("3. 观察训练函数是否被调用")
    print("=" * 50)

if __name__ == "__main__":
    test_api_training()