"""
RO CIP 预测模型适配器。支持每日定时 + 异常触发两种运行模式。
"""
import logging
import time
from datetime import datetime
from typing import List, Optional

import pandas as pd

from core.config import PipelineConfig
from core.data_provider import DataProvider
from core.shared_state import SharedState

logger = logging.getLogger(__name__)


class ROCIPAdapter:
    def __init__(
        self,
        plant: str,
        data_provider: DataProvider,
        shared_state: SharedState,
        config: PipelineConfig,
    ):
        self.plant = plant
        self.data_provider = data_provider
        self.shared_state = shared_state
        self.config = config

        # 导入 RO 模型函数（不触发 __main__）
        import importlib
        import sys
        from pathlib import Path

        ro_root = str(config.ro_root / "cip_predict")
        if ro_root not in sys.path:
            sys.path.insert(0, ro_root)

        ro_module = importlib.import_module("run_this")
        self._process_unit = ro_module.process_unit
        self._main = ro_module.main
        self._load_history = ro_module.load_history

    def run_prediction(
        self,
        units: Optional[List[str]] = None,
        tmp_limit: Optional[float] = None,
        dpt_type: Optional[str] = None,
        df: Optional[pd.DataFrame] = None,
    ) -> pd.DataFrame:
        """运行 CIP 预测并发布结果。"""
        units = units or self.config.ro_units
        tmp_limit = tmp_limit or self.config.ro_tmp_limit
        dpt_type = dpt_type or self.config.ro_dpt_type

        result_df = self._main(units, tmp_limit, dpt_type, df=df)

        # 发布正常/异常结果
        for _, row in result_df.iterrows():
            row_dict = row.to_dict()
            if row_dict.get("status") == "ERROR":
                self.shared_state.publish("ro_anomalies", {
                    "timestamp": datetime.now().isoformat(),
                    **row_dict,
                })
                logger.warning(f"RO 异常: {row_dict}")
            else:
                logger.info(
                    f"RO {row_dict.get('unit')} 预计下次 CIP: "
                    f"{row_dict.get('remaining_days', '?'):.1f} 天后"
                )

        self.shared_state.publish("ro_predictions", {
            "timestamp": datetime.now().isoformat(),
            "plant": self.plant,
            "results": result_df.to_dict("records"),
        })
        return result_df

    def _has_ro_anomaly(self, diag_result: dict) -> bool:
        """检查诊断结果中是否包含 RO 段异常。"""
        if diag_result.get("status") != "abnormal":
            return False
        for trace in diag_result.get("results", []):
            trigger = trace.get("trigger", "")
            if "RO" in trigger or "DPT" in trigger:
                return True
        return False

    def run_scheduler(self):
        """每日定时 + RO 异常触发调度。"""
        last_run_date = None
        while True:
            now = datetime.now()

            # 检查诊断结果是否有 RO 异常
            diag = self.shared_state.read("diagnosis_results", max_age_seconds=7200)
            ro_anomaly = diag is not None and self._has_ro_anomaly(diag)

            # 每日定时（凌晨 8 点附近自然触发）
            is_new_day = now.date() != last_run_date and now.hour >= 8

            if ro_anomaly or is_new_day:
                try:
                    logger.info(f"RO CIP 预测触发 (anomaly={ro_anomaly}, daily={is_new_day})")
                    self.run_prediction()
                    last_run_date = now.date()
                except Exception as e:
                    logger.error(f"RO CIP 预测异常: {e}", exc_info=True)

            time.sleep(60 * 60)  # 每小时检查一次