"""Dashboard: KPIs, gastos por mês e por fornecedor, últimas notas."""

from __future__ import annotations

from fastapi import APIRouter, Query, Request

from .. import database as db
from ..dates import format_competencia
from ..storage import money
from ..templating import render

router = APIRouter()


@router.get("/")
def dashboard(request: Request, category: str = Query("")):
    category = category or ""
    with db.session() as conn:
        categorias = [dict(r) for r in db.list_categorias(conn)]
        totals = db.overall_totals(conn, category=category or None)
        months = [dict(r) for r in db.monthly_totals(conn, category=category or None)]
        suppliers = [dict(r) for r in db.supplier_totals(conn, limit=8, category=category or None)]
        categories = [dict(r) for r in db.category_totals(conn)]
        recent = [dict(r) for r in db.list_fiscal(conn, category=category or None)][:10]

    max_month = max((m["total"] for m in months), default=0) or 1
    for m in months:
        m["label"] = format_competencia(m["mes"], m["ano"])
        m["pct"] = round(m["total"] / max_month * 100, 1)
    max_sup = max((s["total"] for s in suppliers), default=0) or 1
    for s in suppliers:
        s["pct"] = round(s["total"] / max_sup * 100, 1)
    max_cat = max((c["total"] for c in categories), default=0) or 1
    for c in categories:
        c["pct"] = round(c["total"] / max_cat * 100, 1)

    return render(
        request,
        "dashboard.html",
        totals=totals,
        months=months,
        suppliers=suppliers,
        categories=categories,
        categorias=categorias,
        recent=recent,
        selected_category=category,
        money=money,
    )