"""趋势看板路由 — 论文统计图表页面和数据 API。"""

from __future__ import annotations

from fastapi import APIRouter, Depends, Request
from sqlalchemy.orm import Session

from app.database import get_db
from app.services.trends import get_trends_data
from app.utils import templates, today_str

router = APIRouter()


@router.get("/trends")
def trends_page(request: Request, db: Session = Depends(get_db)):
    """趋势看板页面。"""
    stats = get_trends_data(db)
    return templates.TemplateResponse(
        request,
        "trends.html",
        {
            "page_title": "趋势看板",
            "stats": stats,
            "today": today_str(),
        },
    )


@router.get("/api/stats/trends")
def trends_api(db: Session = Depends(get_db)):
    """趋势数据 JSON API。"""
    return get_trends_data(db)