import { describe, expect, it } from "vitest";
import { buildAnnualInvoiceSummary, buildSupplierBudgetSummary } from "@shared/invoiceAnalytics";

const invoices = [
  { invoiceDate: "2026-05-15", createdAt: "2026-05-16", status: "completed", isSubscription: 0, supplierName: "SFR", totalAmount: "100" },
  { invoiceDate: "2026-05-20", createdAt: "2026-05-21", status: "completed", isSubscription: 1, supplierName: "SFR", totalAmount: "20" },
  { invoiceDate: "2025-03-10", createdAt: "2025-03-11", status: "completed", isSubscription: 1, supplierName: "Microsoft", totalAmount: "50" },
  { invoiceDate: "2026-05-01", createdAt: "2026-05-01", status: "error", isSubscription: 0, supplierName: "Ignorée", totalAmount: "999" },
];

describe("agrégats de facturation", () => {
  it("calcule les volumes et montants BAP et abonnements par année", () => {
    expect(buildAnnualInvoiceSummary(invoices)).toEqual([
      { year: 2026, bapCount: 1, bapAmount: 100, subscriptionCount: 1, subscriptionAmount: 20, totalAmount: 120 },
      { year: 2025, bapCount: 0, bapAmount: 0, subscriptionCount: 1, subscriptionAmount: 50, totalAmount: 50 },
    ]);
  });

  it("filtre le budget par période et ventile chaque fournisseur par type", () => {
    expect(buildSupplierBudgetSummary(invoices, "2026", "05")).toEqual([
      { supplierName: "SFR", subscriptionCount: 1, subscriptionAmount: 20, nonSubscriptionCount: 1, nonSubscriptionAmount: 100, totalAmount: 120 },
    ]);
  });

  it("classe le budget du fournisseur le plus facturé au moins facturé", () => {
    const rows = buildSupplierBudgetSummary([
      ...invoices,
      { invoiceDate: "2026-05-22", createdAt: "2026-05-22", status: "completed", isSubscription: 0, supplierName: "Orange", totalAmount: "300" },
    ], "2026", "05");

    expect(rows.map((row) => row.supplierName)).toEqual(["Orange", "SFR"]);
  });
});