#!/usr/bin/env python3
"""
运行temperature_table.py的辅助脚本
自动设置正确的环境变量并运行脚本
"""

import os
import json
import subprocess
import sys
from datetime import datetime, timezone, timedelta

def load_influx_config():
    """从default.json加载InfluxDB配置"""
    config_path = os.path.join(os.path.dirname(__file__), "default.json")
    try:
        with open(config_path, 'r', encoding='utf-8') as f:
            config = json.load(f)
        return config.get('influx', {})
    except Exception as e:
        print(f"加载配置文件失败: {e}")
        return {}

def convert_local_to_utc(local_time_str):
    """将本地时间转换为UTC时间
    
    Args:
        local_time_str: 本地时间字符串，格式如 "2025-11-27T11:30:00"
    
    Returns:
        UTC时间字符串，格式如 "2025-11-27T03:30:00Z"
    """
    try:
        # 解析本地时间（假设是UTC+8）
        local_dt = datetime.fromisoformat(local_time_str)
        # 添加UTC+8时区信息
        local_dt = local_dt.replace(tzinfo=timezone(timedelta(hours=8)))
        # 转换为UTC
        utc_dt = local_dt.astimezone(timezone.utc)
        # 格式化为ISO字符串
        return utc_dt.strftime('%Y-%m-%dT%H:%M:%SZ')
    except Exception as e:
        print(f"时间转换失败: {e}")
        return local_time_str

def run_temperature_table(start_time, end_time):
    """运行temperature_table.py脚本
    
    Args:
        start_time: 实验开始时间（本地时间），如 "2025-11-27T11:30:00"
        end_time: 实验结束时间（本地时间），如 "2025-11-27T12:00:00"
    """
    print("运行 temperature_table.py 脚本")
    print("=" * 50)
    
    # 加载InfluxDB配置
    influx_config = load_influx_config()
    if not influx_config:
        print("错误: 无法加载InfluxDB配置")
        return False
    
    # 转换时间为UTC
    utc_start = convert_local_to_utc(start_time)
    utc_end = convert_local_to_utc(end_time)
    
    print(f"本地时间: {start_time} → {end_time}")
    print(f"UTC时间: {utc_start} → {utc_end}")
    print()
    
    # 设置环境变量
    env = os.environ.copy()
    env.update({
        'INFLUX_URL': influx_config.get('url', ''),
        'INFLUX_ORG': influx_config.get('org', ''),
        'INFLUX_TOKEN': influx_config.get('token', ''),
        'INFLUX_BUCKET': influx_config.get('bucket', 'PCM'),
        'INFLUX_MEASUREMENT': influx_config.get('measurement', 'PCM_Measurement'),
        'EXPERIMENT_START': utc_start,
        'EXPERIMENT_END': utc_end,
        'TABLE_LOG_LEVEL': 'DEBUG',
        'TABLE_LOG_FILE': 'temperature_table.log'
    })
    
    print("环境变量设置:")
    for key in ['INFLUX_URL', 'INFLUX_ORG', 'INFLUX_BUCKET', 'INFLUX_MEASUREMENT', 'EXPERIMENT_START', 'EXPERIMENT_END']:
        value = env[key]
        if key == 'INFLUX_TOKEN':
            value = value[:8] + '****' if len(value) > 8 else '****'
        print(f"  {key}: {value}")
    print()
    
    # 运行脚本
    script_path = os.path.join(os.path.dirname(__file__), "temperature_table.py")
    try:
        print("正在运行脚本...")
        result = subprocess.run(
            [sys.executable, script_path],
            env=env,
            capture_output=True,
            text=True,
            timeout=60
        )
        
        print(f"返回码: {result.returncode}")
        
        if result.stdout:
            print("\n脚本输出:")
            print(result.stdout)
        
        if result.stderr:
            print("\n错误输出:")
            print(result.stderr)
        
        # 显示日志文件最后几行
        log_file = "temperature_table.log"
        if os.path.exists(log_file):
            print(f"\n日志文件最后10行:")
            with open(log_file, 'r', encoding='utf-8') as f:
                lines = f.readlines()
                for line in lines[-10:]:
                    print(f"  {line.strip()}")
        
        return result.returncode == 0
        
    except subprocess.TimeoutExpired:
        print("错误: 脚本运行超时")
        return False
    except Exception as e:
        print(f"错误: 运行脚本失败: {e}")
        return False

def main():
    if len(sys.argv) != 3:
        print("用法: python run_temperature_table.py <开始时间> <结束时间>")
        print("示例: python run_temperature_table.py 2025-11-27T11:30:00 2025-11-27T12:00:00")
        return 1
    
    start_time = sys.argv[1]
    end_time = sys.argv[2]
    
    success = run_temperature_table(start_time, end_time)
    return 0 if success else 1

if __name__ == "__main__":
    sys.exit(main())