import { describe, expect, it } from "vitest";
import {
  findMothershipAvgWeightBlockMessage,
  findMothershipCargoWeightBlockMessage,
  findMothershipTotalWeightBlockMessage,
  isMothershipAverageWeightEachAllowed,
  isMothershipTotalWeightAllowed,
  isMothershipWeekendIso,
  isMothershipWeightEachAllowed,
  MOTHERSHIP_AVG_WEIGHT_BLOCK_MESSAGE,
  MOTHERSHIP_MAX_TOTAL_WEIGHT_LB,
  MOTHERSHIP_TOTAL_WEIGHT_BLOCK_MESSAGE,
  normalizeMothershipReadyDateIso,
  resolveMothershipAverageWeightEachLb,
  snapMothershipReadyDateToWeekday,
  sumMothershipTotalWeightLb,
  ceilMothershipNumeric,
  hasMothershipFractionalPart,
} from "@/lib/mothership/logged-in-constraints";

describe("mothership logged-in constraints", () => {
  it("小数向上取整（进一）", () => {
    expect(ceilMothershipNumeric(25.68)).toBe(26);
    expect(ceilMothershipNumeric(25)).toBe(25);
    expect(ceilMothershipNumeric(40.01)).toBe(41);
    expect(hasMothershipFractionalPart(25.68)).toBe(true);
    expect(hasMothershipFractionalPart(26)).toBe(false);
  });

  it("识别周末", () => {
    expect(isMothershipWeekendIso("2026-07-18")).toBe(true); // Sat
    expect(isMothershipWeekendIso("2026-07-19")).toBe(true); // Sun
    expect(isMothershipWeekendIso("2026-07-20")).toBe(false); // Mon
  });

  it("周末拨到周一", () => {
    expect(snapMothershipReadyDateToWeekday("2026-07-18")).toBe("2026-07-20");
    expect(snapMothershipReadyDateToWeekday("2026-07-19")).toBe("2026-07-20");
    expect(snapMothershipReadyDateToWeekday("2026-07-20")).toBe("2026-07-20");
  });

  it("单件平均重量 ≤5000 可询价，超过则不可", () => {
    expect(isMothershipAverageWeightEachAllowed(5000)).toBe(true);
    expect(isMothershipAverageWeightEachAllowed(5000.01)).toBe(false);
    expect(isMothershipWeightEachAllowed(50)).toBe(true);
    expect(resolveMothershipAverageWeightEachLb(4800, 10)).toBe(4800);
  });

  it("整票总重 ≤45000 可询价", () => {
    expect(isMothershipTotalWeightAllowed(45000)).toBe(true);
    expect(isMothershipTotalWeightAllowed(45001)).toBe(false);
    expect(sumMothershipTotalWeightLb([{ weightLb: 1000, quantity: 45 }])).toBe(
      45000,
    );
    expect(
      findMothershipTotalWeightBlockMessage([
        { weightLb: 1000, quantity: 46 },
      ]),
    ).toBe(MOTHERSHIP_TOTAL_WEIGHT_BLOCK_MESSAGE);
  });

  it("多行任一超均重则阻断", () => {
    expect(
      findMothershipAvgWeightBlockMessage([
        { weightLb: 400, quantity: 30 },
        { weightLb: 5001, quantity: 1 },
      ]),
    ).toBe(MOTHERSHIP_AVG_WEIGHT_BLOCK_MESSAGE);
    expect(
      findMothershipAvgWeightBlockMessage([{ weightLb: 400, quantity: 40 }]),
    ).toBeNull();
  });

  it("均重与总重合并校验", () => {
    expect(
      findMothershipCargoWeightBlockMessage([
        { weightLb: 1200, quantity: 37 },
      ]),
    ).toBeNull();
    expect(
      findMothershipCargoWeightBlockMessage([
        { weightLb: 1200, quantity: 38 },
      ]),
    ).toBe(MOTHERSHIP_TOTAL_WEIGHT_BLOCK_MESSAGE);
    expect(MOTHERSHIP_MAX_TOTAL_WEIGHT_LB).toBe(45000);
  });

  it("normalize 周末日期", () => {
    expect(normalizeMothershipReadyDateIso("2026-07-19")).toBe("2026-07-20");
    expect(normalizeMothershipReadyDateIso("2026-07-20")).toBe("2026-07-20");
    expect(normalizeMothershipReadyDateIso(undefined)).toBeUndefined();
  });
});