from datetime import datetime
from pathlib import Path
from typing import List
from pydantic import BaseModel
from sqlmodel import SQLModel
import yaml
from config.settings import settings

def save_yaml_dump(config: dict, save_as: Path) -> Path:
    """保存配置文件"""
    save_as.parent.mkdir(parents=True, exist_ok=True)
    
    with open(save_as, 'w', encoding='utf-8') as f:
        yaml.dump(
            config,
            f,
            Dumper=yaml.SafeDumper,
            allow_unicode=True,
            indent=2,
            sort_keys=False
        )
    return save_as

class BaseYaml(BaseModel):
    """Yaml基类"""
    def save(self, save_as: Path=settings.APP_CONFIG) -> Path:
        """保存配置文件"""
        return save_yaml_dump(self.model_dump(), save_as)

    @classmethod
    def load(cls, file_path: Path=settings.APP_CONFIG) -> 'BaseYaml':
        """加载配置文件"""

class Subscription(SQLModel):
    url: str
    file_path: str
    updated_at: datetime
    error: int
    detail: dict



class AppYaml(BaseModel):
    subscriptions: List[Subscription] = []

    def save(self, save_as: Path=settings.APP_CONFIG) -> Path:
        """保存配置文件"""
        save_yaml_dump(self.model_dump(), save_as)
        return self.load(save_as)

    @classmethod
    def load(cls, file_path: Path=settings.APP_CONFIG) -> 'AppYaml':
        """加载配置文件"""
        with open(file_path, 'r', encoding='utf-8') as f:
            config = yaml.safe_load(f) or {}
        # print(type(config), config)
        return cls(**config)

app_yaml = AppYaml.load()