"""
Schedule 3 — 系統狀態（每日 08:00）
Part A: 基礎設施服務功能驗證（traefik/keycloak/mail/db）
Part B: 伺服器 ping 檢查
"""
import logging
from datetime import datetime
from sqlalchemy.orm import Session

from app.models.server import SystemStatusLog, ServerStatusLog, Server

logger = logging.getLogger(__name__)

# Fixed 8 services: environment × service_name
SERVICES = [
    {"environment": "test", "service_name": "traefik",
     "service_desc": "測試環境反向代理", "host": "localhost", "port": 8080},
    {"environment": "test", "service_name": "keycloak",
     "service_desc": "測試環境 SSO",
     "url": "https://auth.lab.taipei", "realm": "master"},
    {"environment": "test", "service_name": "mail",
     "service_desc": "測試環境 Mail Server", "host": "localhost", "port": 587},
    {"environment": "test", "service_name": "db",
     "service_desc": "10.1.0.20:5433 PostgreSQL",
     "db_host": "10.1.0.20", "db_port": 5433},
    {"environment": "prod", "service_name": "traefik",
     "service_desc": "正式環境反向代理", "host": "localhost", "port": 8080},
    {"environment": "prod", "service_name": "keycloak",
     "service_desc": "正式環境 SSO",
     "url": "https://auth.ease.taipei", "realm": "master"},
    {"environment": "prod", "service_name": "mail",
     "service_desc": "正式環境 Mail Server", "host": "10.1.0.254", "port": 587},
    {"environment": "prod", "service_name": "db",
     "service_desc": "10.1.0.254:5432 PostgreSQL",
     "db_host": "10.1.0.254", "db_port": 5432},
]


def run_system_status(schedule_log_id: int, db: Session):
    from app.services.system_checker import SystemChecker
    checker = SystemChecker()

    # Part A: Infrastructure services
    for svc in SERVICES:
        result = False
        fail_reason = None
        try:
            if svc["service_name"] == "traefik":
                result = checker.check_traefik(svc["host"], svc["port"])
            elif svc["service_name"] == "keycloak":
                result = checker.check_keycloak(svc["url"], svc["realm"])
            elif svc["service_name"] == "mail":
                result = checker.check_smtp(svc["host"], svc["port"])
            elif svc["service_name"] == "db":
                result = checker.check_postgres(svc["db_host"], svc["db_port"])
        except Exception as e:
            result = False
            fail_reason = str(e)

        db.add(SystemStatusLog(
            schedule_log_id=schedule_log_id,
            environment=svc["environment"],
            service_name=svc["service_name"],
            service_desc=svc["service_desc"],
            result=result,
            fail_reason=fail_reason,
            recorded_at=datetime.utcnow(),
        ))

    # Part B: Server ping
    servers = db.query(Server).filter(Server.is_active == True).order_by(Server.sort_order).all()
    for server in servers:
        response_time = None
        fail_reason = None
        try:
            response_time = checker.ping_server(server.ip_address)
            result = response_time is not None
            if not result:
                fail_reason = "No response"
        except Exception as e:
            result = False
            fail_reason = str(e)

        db.add(ServerStatusLog(
            schedule_log_id=schedule_log_id,
            server_id=server.id,
            result=result,
            response_time=response_time,
            fail_reason=fail_reason,
            recorded_at=datetime.utcnow(),
        ))

    db.commit()
    logger.info(f"System status check done: {len(SERVICES)} services + {len(servers)} servers")