import logging
from typing import Optional

from .core import ContentExtractorCore

logger = logging.getLogger(__name__)


class ContentExtractorPlugin:
    """内容提取插件"""

    def __init__(self) -> None:
        self.name = "content"
        self.version = "1.0.0"
        self.enabled = False
        self.core: Optional[ContentExtractorCore] = None

    def on_enable(self) -> None:
        """启用插件并初始化内容提取核心逻辑"""
        self.enabled = True
        self.core = ContentExtractorCore()
        self._sync_api_core(self.core)
        logger.info(f"内容提取插件 {self.version} 已启用")

    def on_disable(self) -> None:
        """禁用插件并释放运行时实例"""
        self.enabled = False
        self._sync_api_core(None)
        self.core = None
        logger.info(f"内容提取插件 {self.version} 已禁用")

    def get_status(self) -> dict:
        """获取插件运行状态"""
        return {
            "name": self.name,
            "version": self.version,
            "enabled": self.enabled,
            "ocr_loaded": self._is_ocr_loaded(),
            "message": "运行正常" if self.enabled else "已禁用",
        }

    def _is_ocr_loaded(self) -> bool:
        """检查OCR引擎是否已加载，不触发懒加载初始化"""
        if self.core is None:
            return False
        return self.core.ocr_service.is_loaded()

    def _sync_api_core(self, core: Optional[ContentExtractorCore]) -> None:
        """同步API模块的插件实例和核心实例"""
        try:
            from . import api

            api.set_plugin_instance(self)
            api.set_core_instance(core)
        except ImportError as e:
            logger.warning(f"同步内容提取插件API实例失败: {e}")


plugin = ContentExtractorPlugin()