import { beforeEach, describe, expect, it } from "vitest";
import { firestore } from "../../src/firebase";
import { computeEligibility } from "../../src/services/eligibilityService";
import { applyPointChanges } from "../../src/services/pointService";
import { PointLedgerType } from "../../src/types/points";

const uid = "eligibility-points-only";

describe("computeEligibility", () => {
  beforeEach(async () => {
    await firestore.recursiveDelete(firestore.doc(`users/${uid}`));
  });

  it("상점 진입 자격은 가용 포인트 보유 여부만 확인한다", async () => {
    expect(await computeEligibility(uid)).toEqual({
      eligible: false,
      reasons: ["INSUFFICIENT_BALANCE"],
      availableBalance: 0,
    });

    await applyPointChanges(uid, [{
      txId: `${uid}:admin:seed`,
      type: PointLedgerType.AdminCredit,
      amount: 100,
    }]);

    expect(await computeEligibility(uid)).toEqual({
      eligible: true,
      reasons: [],
      availableBalance: 100,
    });
  });

  it("주문 자격은 주문 총액 이상의 가용 포인트만 확인한다", async () => {
    await applyPointChanges(uid, [{
      txId: `${uid}:admin:seed-order`,
      type: PointLedgerType.AdminCredit,
      amount: 100,
    }]);

    expect(await computeEligibility(uid, 101)).toMatchObject({
      eligible: false,
      reasons: ["INSUFFICIENT_BALANCE"],
    });
    expect(await computeEligibility(uid, 100)).toMatchObject({
      eligible: true,
      reasons: [],
    });
  });
});