import { describe, expect, it } from "vitest";
import {
  applyCarryOverDisplayDayFields,
  formatCarriedOverHover,
  isCarryOverDisplayRow,
  mapCarryOverDisplayDay,
  resolveCarryOverSourceWeek,
  shouldShowCarriedOverPill,
} from "@/domain/work-orders/utils/carry-over-display";

describe("carry-over-display", () => {
  it("hides the pill below 2 and on terminal statuses", () => {
    expect(shouldShowCarriedOverPill(1, "Scheduled")).toBe(false);
    expect(shouldShowCarriedOverPill(2, "Scheduled")).toBe(true);
    expect(shouldShowCarriedOverPill(3, "Completed")).toBe(false);
    expect(shouldShowCarriedOverPill(3, "Canceled")).toBe(false);
  });

  it("formats hover without a source week", () => {
    expect(formatCarriedOverHover(2)).toBe(
      "Carried over 2 times — this WO was not completed and moved to the next period",
    );
  });

  it("appends the source week label from originalWeek", () => {
    expect(formatCarriedOverHover(3, "2026-05-04")).toBe(
      "Carried over 3 times — this WO was not completed and moved to the next period. Source week: 5/4–5/8.",
    );
  });

  it("resolves source week from originalWeek, then originalDate, then scheduledOn", () => {
    expect(resolveCarryOverSourceWeek({ originalWeek: "2026-05-04" })).toBe("2026-05-04");
    expect(resolveCarryOverSourceWeek({ originalDate: "2026-05-06" })).toBe("2026-05-04");
    expect(resolveCarryOverSourceWeek({ scheduledOn: "2026-05-13" })).toBe("2026-05-11");
    expect(resolveCarryOverSourceWeek({})).toBe("");
  });

  it("treats non-terminal rows scheduled before the viewed week as carry-over", () => {
    expect(
      isCarryOverDisplayRow(
        { scheduledOn: "2026-05-13", status: "Scheduled", carriedOver: 1 },
        "2026-05-18",
      ),
    ).toBe(true);
    expect(
      isCarryOverDisplayRow(
        { scheduledOn: "2026-05-20", status: "Scheduled", carriedOver: 2 },
        "2026-05-18",
      ),
    ).toBe(false);
    expect(
      isCarryOverDisplayRow(
        { scheduledOn: "2026-05-13", status: "Completed", carriedOver: 2 },
        "2026-05-18",
      ),
    ).toBe(false);
  });

  it("maps the original weekday onto the viewed week and weekends onto Monday", () => {
    expect(mapCarryOverDisplayDay("2026-05-13", "2026-05-18")).toBe("2026-05-20");
    expect(mapCarryOverDisplayDay("2026-05-16", "2026-05-18")).toBe("2026-05-18");
    expect(mapCarryOverDisplayDay("2026-05-17", "2026-05-18")).toBe("2026-05-18");
  });

  it("remaps dayGroup to the viewed weekday without changing scheduledOn", () => {
    const row = {
      scheduledOn: "2026-05-13",
      status: "Scheduled",
      dayGroup: "05/13",
      dayLabel: "WED · 05/13",
    };
    const next = applyCarryOverDisplayDayFields(row, "2026-05-18");
    expect(next.scheduledOn).toBe("2026-05-13");
    expect(next.dayGroup).toBe("05/20");
    expect(next.dayLabel).toBe("WED · 05/20");
  });

  it("leaves in-week and terminal rows' dayGroup unchanged", () => {
    const inWeek = {
      scheduledOn: "2026-05-20",
      status: "Scheduled",
      dayGroup: "05/20",
      dayLabel: "WED · 05/20",
    };
    const completed = {
      scheduledOn: "2026-05-13",
      status: "Completed",
      dayGroup: "05/13",
      dayLabel: "WED · 05/13",
    };
    expect(applyCarryOverDisplayDayFields(inWeek, "2026-05-18")).toEqual(inWeek);
    expect(applyCarryOverDisplayDayFields(completed, "2026-05-18")).toEqual(completed);
  });
});