from pydantic import BaseModel, Field
from datetime import datetime
from typing import Optional, Any


class ResourceAuthorOut(BaseModel):
    id: int
    name: str = ""
    avatar: str = ""
    subject: str = ""
    school: str = ""

    model_config = {"from_attributes": True}


class ResourceCreate(BaseModel):
    resource_type: str = "other"
    title: str = Field(..., min_length=1, max_length=200)
    description: str = ""
    content_ref: str = ""
    file_url: str = ""
    tags: list[str] = Field(default_factory=list)
    subject: str = ""
    grade: str = ""
    is_public: int = 1


class ResourceUpdate(BaseModel):
    resource_type: Optional[str] = None
    title: Optional[str] = None
    description: Optional[str] = None
    content_ref: Optional[str] = None
    file_url: Optional[str] = None
    cover_image: Optional[str] = None
    tags: Optional[list[str]] = None
    subject: Optional[str] = None
    grade: Optional[str] = None
    is_public: Optional[int] = None
    status: Optional[str] = None


class ResourceOut(BaseModel):
    id: int
    user_id: int
    resource_type: str
    title: str
    description: str = ""
    content_ref: str = ""
    file_url: str = ""
    cover_image: str = ""
    tags: list = Field(default_factory=list)
    subject: str = ""
    grade: str = ""
    downloads: int = 0
    likes: int = 0
    views: int = 0
    is_public: int = 1
    is_favorited: bool = False
    author: ResourceAuthorOut | None = None
    created_at: datetime | None = None
    updated_at: datetime | None = None

    model_config = {"from_attributes": True}