"""首页平台级展示数据 endpoint(全平台门面数字,**不鉴权**——登录前首页也要展示)。

路由前缀 `/api/v1/platform`:
  GET /stats   首页三统计(帮助用户 / 完成比价 / 累计节省),按运营后台配的模式算。

展示模式(real/manual/random,每指标独立)与计算逻辑见 app/repositories/ops_stat.py。
"""
from __future__ import annotations

import logging

from fastapi import APIRouter, Query

from app.api.deps import DbSession
from app.repositories import ops_marquee as marquee_crud
from app.repositories import ops_stat as crud
from app.schemas.platform import PlatformStatsOut, SavingsFeedItem, SavingsFeedOut

logger = logging.getLogger("shagua.platform")

router = APIRouter(prefix="/api/v1/platform", tags=["platform"])


@router.get("/stats", response_model=PlatformStatsOut, summary="首页三统计(全平台门面数字)")
def stats(db: DbSession) -> PlatformStatsOut:
    v = crud.get_display_values(db)
    return PlatformStatsOut(
        help_users=v["help_users"],
        total_compares=v["total_compares"],
        total_saved_cents=v["total_saved"],
    )


@router.get("/savings-feed", response_model=SavingsFeedOut, summary="首页轮播 feed(真实+种子混播)")
def savings_feed(db: DbSession, limit: int = Query(8, ge=1, le=30)) -> SavingsFeedOut:
    items = marquee_crud.get_feed(db, limit=limit)
    return SavingsFeedOut(items=[SavingsFeedItem(**it) for it in items])