# =============================================================================
# 企微IT智能服务台 — 欢迎与引导配置模型
# =============================================================================
# 说明：存储员工端H5的欢迎页、引导视频、互动教学、主题模板配置
# 使用 SystemConfig 表存储，config_key 为 welcome_config
# =============================================================================

import json
import uuid
from datetime import datetime
from typing import Any, Optional

from sqlalchemy import DateTime, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base


class WelcomeConfig:
    """欢迎与引导配置数据类。

    用于在内存中处理配置数据，不直接对应数据库表。
    实际存储使用 SystemConfig 表，config_key 为 "welcome_config"。

    Attributes:
        welcome_page: 欢迎页配置
        welcome_video: 引导视频配置
        tutorial: 互动教学配置
        theme: 主题模板配置
    """

    def __init__(
        self,
        welcome_page: Optional[dict[str, Any]] = None,
        welcome_video: Optional[dict[str, Any]] = None,
        tutorial: Optional[dict[str, Any]] = None,
        theme: Optional[dict[str, Any]] = None,
    ):
        self.welcome_page = welcome_page or {
            "enabled": False,
            "title": "欢迎使用IT服务台",
            "content": "在这里您可以提交IT问题申请，获取快速支持",
            "background_color": "#07C160",
        }
        self.welcome_video = welcome_video
        self.tutorial = tutorial or {
            "enabled": False,
            "steps": [],
        }
        self.theme = theme or {
            "theme": "default",
        }

    def to_dict(self) -> dict[str, Any]:
        """转换为字典格式。"""
        return {
            "welcome_page": self.welcome_page,
            "welcome_video": self.welcome_video,
            "tutorial": self.tutorial,
            "theme": self.theme,
        }

    @classmethod
    def from_dict(cls, data: dict[str, Any]) -> "WelcomeConfig":
        """从字典创建配置对象。"""
        return cls(
            welcome_page=data.get("welcome_page"),
            welcome_video=data.get("welcome_video"),
            tutorial=data.get("tutorial"),
            theme=data.get("theme"),
        )

    @classmethod
    def get_default(cls) -> "WelcomeConfig":
        """获取默认配置。"""
        return cls()

    # 静态方法：用于从 SystemConfig 读取和保存
    CONFIG_KEY = "welcome_config"

    @staticmethod
    def serialize(config: "WelcomeConfig") -> str:
        """序列化配置为 JSON 字符串。"""
        return json.dumps(config.to_dict(), ensure_ascii=False)

    @staticmethod
    def deserialize(config_value: str) -> "WelcomeConfig":
        """从 JSON 字符串反序列化配置。"""
        try:
            data = json.loads(config_value)
            return WelcomeConfig.from_dict(data)
        except (json.JSONDecodeError, TypeError):
            return WelcomeConfig.get_default()