"""
DualFlow 三模型统一管线主入口。
启动 UF-RL（事件驱动）、异常诊断（定时）、RO CIP（每日/触发）三个服务线程。

用法:
    python -m core.pipeline                 # 默认 longting
    python -m core.pipeline --plant xishan  # 指定水厂
"""
import argparse
import logging
import signal
import sys
import threading
import time
from pathlib import Path

# 确保 core/ 目录在 sys.path，使 from core.xxx 可用
CORE_ROOT = Path(__file__).resolve().parent
PROJECT_ROOT = CORE_ROOT.parent
for p in (str(PROJECT_ROOT), str(CORE_ROOT)):
    if p not in sys.path:
        sys.path.insert(0, p)

from core.config import PipelineConfig
from core.data_provider import DataProvider
from core.shared_state import SharedState
from core.adapters.diagnosis_adapter import DiagnosisAdapter
from core.adapters.ro_adapter import ROCIPAdapter
from core.adapters.uf_adapter import UFAdapter

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(threadName)s] %(levelname)s %(name)s: %(message)s",
    datefmt="%Y-%m-%d %H:%M:%S",
)
logger = logging.getLogger("pipeline")


class DualFlowPipeline:
    def __init__(self, plant: str = "longting", config_path: str = None):
        self.plant = plant
        self.config = PipelineConfig(config_path=config_path, plant=plant)
        self.shared_state = SharedState()
        self.data_provider = DataProvider(self.config)

        # 初始化适配器
        self.uf = UFAdapter(plant, self.data_provider, self.shared_state, self.config)
        self.ro = ROCIPAdapter(plant, self.data_provider, self.shared_state, self.config)

        # 诊断模型可能不存在所有 plant 的配置
        self._diag_available = (self.config.diagnosis_root / plant / "config.yaml").exists()
        self.diag = None
        if self._diag_available:
            self.diag = DiagnosisAdapter(
                plant, self.data_provider, self.shared_state, self.config
            )

        self._threads: list = []
        self._running = False

    def start(self):
        self._running = True
        logger.info(f"=== DualFlow Pipeline 启动 (plant={self.plant}, dry_run={self.config.dry_run}) ===")

        # UF: 每个机组一个线程
        for unit in self.config.uf_units:
            t = threading.Thread(
                target=self.uf.run_unit_forever,
                args=(unit,),
                name=f"UF-{unit}",
                daemon=True,
            )
            self._threads.append(t)

        # 诊断: 定时线程
        if self.diag:
            t = threading.Thread(
                target=self.diag.run_loop,
                name="Diagnosis",
                daemon=True,
            )
            self._threads.append(t)
        else:
            logger.warning(f"plant={self.plant} 无诊断模型配置，跳过诊断线程")

        # RO: 调度线程
        t = threading.Thread(
            target=self.ro.run_scheduler,
            name="RO-CIP",
            daemon=True,
        )
        self._threads.append(t)

        # 启动所有线程
        for t in self._threads:
            t.start()
            logger.info(f"线程已启动: {t.name}")

        # 主线程：健康监控
        self._monitor()

    def _monitor(self):
        while self._running:
            for t in self._threads:
                if not t.is_alive():
                    logger.error(f"线程已死亡: {t.name}")
            time.sleep(60)

    def stop(self):
        self._running = False
        logger.info("Pipeline 停止")


def main():
    parser = argparse.ArgumentParser(description="DualFlow 三模型统一管线")
    parser.add_argument(
        "--plant",
        default="xishan",
        choices=["xishan", "longting", "anzhen", "lankao"],
        help="水厂名称 (默认 xishan)",
    )
    parser.add_argument(
        "--config",
        default=None,
        help="配置文件路径 (默认 core/config/pipeline_config.yaml)",
    )
    args = parser.parse_args()

    pipeline = DualFlowPipeline(args.plant, args.config)

    def _signal_handler(sig, frame):
        logger.info("收到停止信号，正在退出...")
        pipeline.stop()
        sys.exit(0)

    signal.signal(signal.SIGINT, _signal_handler)
    signal.signal(signal.SIGTERM, _signal_handler)

    pipeline.start()


if __name__ == "__main__":
    main()