"""Article schemas."""
from __future__ import annotations

from datetime import datetime

from pydantic import BaseModel, ConfigDict, Field


class SourceBrief(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: int
    name: str
    slug: str
    region: str | None = None


class ArticleListItem(BaseModel):
    """列表项:首页展示标题/译标/正文摘要/分类/插图,详细阅读进详情页。"""

    model_config = ConfigDict(from_attributes=True)

    id: int
    source: SourceBrief
    title: str
    title_zh: str | None = None
    # 翻译后的正文(纯文本);列表里截断显示,详情页展示完整
    body_zh_text: str | None = None
    summary_zh: str | None = None
    lang_src: str | None = None
    translation_status: str
    category: str | None = None
    published_at: datetime | None = None
    fetched_at: datetime
    image_url: str | None = None
    # === 列表预览钩子:点击进详情前的"诱导点" ===
    commentary: str | None = None  # LLM 点评(列表里截断显示)
    commentary_status: str | None = None  # ok/failed/pending/n/a
    image_ai_url: str | None = None  # AI 插图(列表里缩略图)
    is_starred: bool = False


class ArticleDetail(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: int
    source: SourceBrief
    url: str
    title: str
    body_html: str | None = None
    body_text: str
    title_zh: str | None = None
    body_zh_html: str | None = None
    body_zh_text: str | None = None
    body_zh_formatted: str | None = None  # LLM 排版后
    summary_zh: str | None = None
    lang_src: str | None = None
    author: str | None = None
    image_url: str | None = None
    image_ai_url: str | None = None  # LLM 生成的插图
    translation_status: str
    translation_engine: str | None = None
    translated_at: datetime | None = None
    # === LLM 增强状态 + 内容 ===
    category: str | None = None
    format_status: str | None = None  # pending/ok/failed/n/a
    classify_status: str | None = None
    image_ai_status: str | None = None
    commentary_status: str | None = None
    commentary: str | None = None
    entities: dict | None = None
    sentiment: float | None = None
    duplicate_of: int | None = None
    published_at: datetime | None = None
    fetched_at: datetime
    is_starred: bool = False


class ArticleListResponse(BaseModel):
    items: list[ArticleListItem]
    # 页码分页
    page: int = 1
    page_size: int = 50
    total: int
    total_pages: int


class ArticleQuery(BaseModel):
    """用作 ?query= 解析参考(实际 FastAPI 直接用 Query)。"""

    since: datetime | None = None
    until: datetime | None = None
    source: str | None = None  # 逗号分隔 slug
    category: str | None = None
    q: str | None = None
    lang: str = Field(default="both", pattern=r"^(src|zh|both)$")
    page: int = Field(default=1, ge=1)
    page_size: int = Field(default=50, ge=1, le=200)
    starred_only: bool = False