import { describe, expect, it } from "vitest";
import {
  formatAssetQuantity,
  inKindProgress,
  quantityForAmount,
  valuationPrice,
  valueOf,
} from "./assets";

describe("varlık hesapları", () => {
  it("değer ve miktar karşılığı (binde bir miktar, kuruş fiyat)", () => {
    // 5 gr × 3.250,50 TL = 16.252,50 TL
    expect(valueOf(5_000, 3_250_50)).toBe(16_252_50);
    expect(valueOf(1_500, 100_00)).toBe(150_00);
    expect(quantityForAmount(16_252_50, 3_250_50)).toBe(5_000);
    expect(quantityForAmount(100, 0)).toBe(0);
  });

  it("biçim", () => {
    expect(formatAssetQuantity("gram_gold", 5_000)).toBe("5 gr Gram altın (24 ayar)");
    expect(formatAssetQuantity("quarter_gold", 2_000)).toBe("2 adet Çeyrek altın");
    expect(formatAssetQuantity("usd", 1_500_000)).toBe("1.500 USD");
    expect(formatAssetQuantity("bracelet_22k", 12_345)).toBe("12,345 gr 22 ayar bilezik");
  });

  it("değerleme fiyatı: borç satış, alacak alış", () => {
    const p = { buyMinor: 3_200_00, sellMinor: 3_300_00 };
    expect(valuationPrice("debt", p)).toBe(3_300_00);
    expect(valuationPrice("receivable", p)).toBe(3_200_00);
    expect(valuationPrice("debt", null)).toBeNull();
  });
});

describe("aynî borç ilerlemesi", () => {
  const base = {
    quantity: 5_000,
    paidQuantity: 0,
    unitPriceMinor: 3_000_00,
    contributedMinor: 6_000_00,
    spentMinor: 0,
    monthlyPlanMinor: 2_000_00,
    today: "2026-11-05",
  };

  it("kalan ihtiyaç ve tahmini kapanış ayı", () => {
    // 5 gr × 3.000 = 15.000; biriken 6.000 → 9.000 kaldı; ayda 2.000 → 5 ay → 2027-04
    expect(inKindProgress(base)).toEqual({
      remainingQuantity: 5_000,
      currentValueMinor: 15_000_00,
      accumulatedMinor: 6_000_00,
      remainingNeedMinor: 9_000_00,
      estimatedCloseMonth: "2027-04",
    });
  });

  it("kısmi ödeme, birikim yeterli, fiyat yok, plan yok", () => {
    expect(inKindProgress({ ...base, paidQuantity: 3_000 }).remainingNeedMinor).toBe(0);
    expect(inKindProgress({ ...base, paidQuantity: 3_000 }).estimatedCloseMonth).toBe("2026-11");
    expect(inKindProgress({ ...base, unitPriceMinor: null }).remainingNeedMinor).toBeNull();
    expect(inKindProgress({ ...base, monthlyPlanMinor: null }).estimatedCloseMonth).toBeNull();
    expect(inKindProgress({ ...base, paidQuantity: 5_000 }).remainingQuantity).toBe(0);
    expect(inKindProgress({ ...base, spentMinor: 9_000_00 }).accumulatedMinor).toBe(0);
  });
});