from typing import List
from fastapi import APIRouter, Depends
from sqlalchemy.orm import Session
from pydantic import BaseModel
from typing import Optional
from datetime import datetime

from app.core.database import get_db
from app.models.server import SystemStatusLog

router = APIRouter(tags=["status"])


class SystemStatusItem(BaseModel):
    id: int
    environment: str
    service_name: str
    service_desc: Optional[str]
    result: bool
    fail_reason: Optional[str]
    recorded_at: datetime

    class Config:
        from_attributes = True


@router.get("/system-status", response_model=List[SystemStatusItem])
def get_system_status(db: Session = Depends(get_db)):
    """最新一次系統狀態 (8 筆: test/prod × traefik/keycloak/mail/db)"""
    # Get latest schedule_log_id for schedule_id=3
    from app.models.schedule import ScheduleLog
    latest_log = (
        db.query(ScheduleLog)
        .filter(ScheduleLog.schedule_id == 3)
        .order_by(ScheduleLog.started_at.desc())
        .first()
    )
    if not latest_log:
        return []
    return (
        db.query(SystemStatusLog)
        .filter(SystemStatusLog.schedule_log_id == latest_log.id)
        .all()
    )