import { describe, expect, it } from "../test/testHarness";

import {
  calculateEnterpriseVideoCredits,
  type EnterpriseVideoPricingConfig,
  getEnterpriseVideoCreditRate,
  normalizeEnterpriseResolution,
} from "./enterpriseVideoPolicy";

describe("enterpriseVideoPolicy", () => {
  it("keeps video billing at 1 CNY to 100 credits", () => {
    expect(
      calculateEnterpriseVideoCredits({
        model: "happyhorse-1.0",
        resolution: "1080P",
        durationSeconds: 5,
      }),
    ).toBe(640);

    expect(
      calculateEnterpriseVideoCredits({
        model: "wan2.7-i2v",
        resolution: "720P",
        durationSeconds: 5,
      }),
    ).toBe(300);
  });

  it("rounds duration up to the next second before billing", () => {
    expect(
      calculateEnterpriseVideoCredits({
        model: "vidu-q3-turbo",
        resolution: "1080P",
        durationSeconds: 5.2,
      }),
    ).toBe(600);
  });

  it("normalizes unsupported resolutions to 1080P", () => {
    expect(normalizeEnterpriseResolution("4K")).toBe("1080P");
    expect(
      getEnterpriseVideoCreditRate({
        model: "pixverse-c1",
        resolution: "4K",
        durationSeconds: 5,
      }),
    ).toBe(1);
  });

  it("uses server-provided pricing config before fallback pricing", () => {
    const serverPricing: EnterpriseVideoPricingConfig = {
      creditsPerCny: 100,
      defaultResolution: "1080P",
      rules: [
        {
          id: "happyhorse-server",
          modelIncludes: ["happyhorse"],
          rates: { "720P": 2, "1080P": 3 },
        },
      ],
    };

    expect(
      getEnterpriseVideoCreditRate(
        {
          model: "happyhorse-1.0",
          resolution: "1080P",
          durationSeconds: 5,
        },
        serverPricing,
      ),
    ).toBe(3);

    expect(
      calculateEnterpriseVideoCredits(
        {
          model: "happyhorse-1.0",
          resolution: "1080P",
          durationSeconds: 5,
        },
        serverPricing,
      ),
    ).toBe(1500);
  });
});