import { describe, expect, it } from "vitest";
import { formatAuditTimestamp } from "@/domain/work-orders/utils/format-audit-timestamp";

describe("formatAuditTimestamp (SH-361)", () => {
  it("includes the calendar date and the time for an ISO audit time", () => {
    const iso = "2026-09-15T19:42:00";
    const date = new Date(iso);
    const expectedDate = date.toLocaleDateString("en-US", {
      month: "2-digit",
      day: "2-digit",
      year: "numeric",
    });

    const formatted = formatAuditTimestamp(iso);

    expect(formatted).toBe(`${expectedDate} · 7:42 PM`);
    expect(formatted).toMatch(/^\d{2}\/\d{2}\/\d{4} · \d{1,2}:\d{2} (AM|PM)$/);
  });

  it("distinguishes the same time of day on different dates", () => {
    expect(formatAuditTimestamp("2026-09-14T09:48:00")).not.toBe(
      formatAuditTimestamp("2026-09-15T09:48:00"),
    );
  });

  it("keeps pre-formatted or unparseable strings unchanged", () => {
    expect(formatAuditTimestamp("· 7:42 PM")).toBe("· 7:42 PM");
    expect(formatAuditTimestamp("09/15/2026 · 7:42 PM")).toBe("09/15/2026 · 7:42 PM");
  });

  it("returns an empty string when there is no time", () => {
    expect(formatAuditTimestamp("")).toBe("");
  });
});