"""
密钥管理接口
"""
from fastapi import APIRouter, Depends
from sqlalchemy.orm import Session
from app.database import get_db
from app.models.api_key import APIKey
from datetime import datetime, timedelta
from app.utils.timezone import beijing_now

router = APIRouter()

@router.get("/public")
async def get_public_key(db: Session = Depends(get_db)):
    """
    获取公钥 (向后兼容接口)
    @deprecated: 建议使用 /api/keys/version 接口
    """
    # 获取当前激活的密钥
    key = db.query(APIKey).filter(APIKey.is_active == 1).first()

    if not key:
        return {"code": 404, "msg": "未找到激活的密钥"}

    return {
        "code": 200,
        "msg": "成功",
        "data": {
            "public_key": key.public_key,
            "key_version": key.key_version
        }
    }

@router.get("/version")
async def get_key_version(db: Session = Depends(get_db)):
    """
    获取当前密钥版本信息
    返回当前激活的密钥版本，用于客户端配置验证
    """
    # 获取当前激活的密钥
    key = db.query(APIKey).filter(APIKey.is_active == 1).first()

    if not key:
        return {"code": 404, "msg": "未找到激活的密钥"}

    # 获取所有可用的密钥版本列表（包括当前激活的和新预热的）
    available_keys = db.query(APIKey).filter(
        APIKey.is_deleted == 0,
        APIKey.expire_at.is_(None) | (APIKey.expire_at > beijing_now())
    ).order_by(APIKey.key_version.desc()).all()

    available_versions = [k.key_version for k in available_keys]

    return {
        "code": 200,
        "msg": "成功",
        "data": {
            "current_version": key.key_version,
            "available_versions": available_versions,
            "public_key": key.public_key,  # 仍然提供公钥，用于客户端更新配置
            "expire_at": key.expire_at.isoformat() if key.expire_at else None
        }
    }