import yaml
import os
from datetime import datetime, timedelta
# from utils.logger import logger

# 配置文件路径
CONFIG_PATH = os.path.join(os.path.dirname(__file__), 'config.yaml')


def load_config():
    """加载YAML配置，区分vCenter和ESXi"""
    try:
        with open(CONFIG_PATH, 'r', encoding='utf-8') as f:
            raw_config = yaml.safe_load(f)

        # 全局配置
        global_config = raw_config.get('global', {})
        config = {
            # vCenter/ESXi节点列表
            "MANAGEMENT_NODES": raw_config.get('management_nodes', []),
            # vCenter/ESXi节点列表
            "SNAPSHOT_RETENTION_DAYS": int(global_config.get('snapshot_retention_days', 15)),
            "EXCEL_OUTPUT_PATH": global_config.get('excel_output_path', '/tmp/vm_snapshots_report.xlsx'),
            "LOG_FILE_PATH": global_config.get('log_file_path', '/var/log/vm_snapshot_cleanup.log'),
            "DISABLE_SSL_VERIFY": global_config.get('disable_ssl_verify', True),
            # 算出的过期时间点
            "EXPIRE_DATE": datetime.now() - timedelta(days=int(global_config.get('snapshot_retention_days', 15)))
        }

        # 验证配置
        if not config["MANAGEMENT_NODES"]:
            raise ValueError("未配置任何管理节点（vCenter/ESXi）")

        # 检查每个节点的必填字段
        required_fields = ['type', 'name', 'host', 'user', 'password', 'max_delete_concurrent']
        for node in config["MANAGEMENT_NODES"]:
            missing = [f for f in required_fields if f not in node]
            if missing:
                raise ValueError(f"节点 {node.get('name', '未知')} 缺少配置字段: {missing}")
            # 验证类型合法性
            if node['type'] not in ['vcenter', 'esxi']:
                raise ValueError(f"节点 {node['name']} 类型错误（仅支持vcenter/esxi）")

        #logger.info(f"✅ 成功加载配置，共 {len(config['MANAGEMENT_NODES'])} 个管理节点")
        return config

    except Exception as e:
        #logger.error(f"❌ 加载配置失败: {str(e)}")
        raise


# 加载配置并导出全局变量
config = load_config()  # 模块导入时立即执行
MANAGEMENT_NODES = config["MANAGEMENT_NODES"]
SNAPSHOT_RETENTION_DAYS = config["SNAPSHOT_RETENTION_DAYS"]
EXCEL_OUTPUT_PATH = config["EXCEL_OUTPUT_PATH"]
LOG_FILE_PATH = config["LOG_FILE_PATH"]
DISABLE_SSL_VERIFY = config["DISABLE_SSL_VERIFY"]
EXPIRE_DATE = config["EXPIRE_DATE"]


# 验证配置函数
def validate_config():
    pass  # 加载时已验证，此处留空


if __name__ == "__main__":
    # 打印全局配置
    print("\n【全局配置】")
    print(f"  快照保留天数: {config['SNAPSHOT_RETENTION_DAYS']}")
    print(f"  过期日期: {config['EXPIRE_DATE']}")
    print(f"  Excel输出路径: {config['EXCEL_OUTPUT_PATH']}")
    print(f"  日志文件路径: {config['LOG_FILE_PATH']}")
    print(f"  禁用SSL验证: {config['DISABLE_SSL_VERIFY']}")

    # 打印管理节点
    nodes = config['MANAGEMENT_NODES']
    print(f"\n【管理节点】共 {len(nodes)} 个")

    for i, node in enumerate(nodes, 1):
        print(f"\n  节点[{i}]:")
        print(f"    类型: {node.get('type')}")
        print(f"    名称: {node.get('name')}")
        print(f"    地址: {node.get('host')}")
        print(f"    用户: {node.get('user')}")
        print(f"    密码: {'*' * len(node.get('password', ''))}")
        # print(f"    密码: {node.get('password', '')}")  # 直接打印出密码
        print(f"    最大并发删除: {node.get('max_delete_concurrent')}")