import { describe, expect, it } from "vitest";
import {
  clearDueDateBeforeSchedule,
  isDueDateBeforeFloor,
  resolveDueDateFloor,
} from "@/domain/work-orders/utils/due-date-floor";

describe("due date floor (SH-356)", () => {
  it("uses the concrete or range-start Schedule On, else the target week's first day", () => {
    expect(resolveDueDateFloor({ scheduledOn: "2026-09-10", targetWeek: "" })).toBe("2026-09-10");
    expect(resolveDueDateFloor({ scheduledOn: "", targetWeek: "2026-09-14" })).toBe("2026-09-14");
    expect(resolveDueDateFloor({ scheduledOn: "", targetWeek: "" })).toBe("");
    expect(resolveDueDateFloor({ scheduledOn: null, targetWeek: undefined })).toBe("");
  });

  it("flags only a Due Date strictly before the floor", () => {
    expect(isDueDateBeforeFloor("2026-09-09", "2026-09-10")).toBe(true);
    expect(isDueDateBeforeFloor("2026-09-10", "2026-09-10")).toBe(false);
    expect(isDueDateBeforeFloor("", "2026-09-10")).toBe(false);
    expect(isDueDateBeforeFloor("2026-09-09", "")).toBe(false);
  });

  it("clears (never bumps) a Due Date the new schedule passes", () => {
    expect(clearDueDateBeforeSchedule("2026-09-12", "2026-09-15")).toEqual({ dueDate: "" });
    expect(clearDueDateBeforeSchedule("2026-09-12", "2026-09-12")).toEqual({});
    expect(clearDueDateBeforeSchedule("2026-09-20", "2026-09-15")).toEqual({});
    expect(clearDueDateBeforeSchedule("2026-09-12", "")).toEqual({});
  });
});