/**
 * Regression tests for `src/actions/time-tracking/route-summary.ts` →
 * `getFleetRouteSummary`.
 *
 * Why this exists: the original implementation referenced
 * `fw.display_name` and `fw.pin` in its SQL, but the unified
 * `field_workers` table (cycle 10) uses `name` and `pin_hash`. The
 * wrong-column reference crashed the `/admin/time-tracking` overview
 * page on render with `column "fw.display_name" does not exist`. No
 * test caught it because nothing exercised this code path.
 *
 * These tests mock the bare minimum (admin user + pg pool) and assert:
 *   1. The SQL passed to `pool.query` references the correct columns
 *      (`fw.name`, `fw.pin_hash`) and NOT the legacy names.
 *   2. The row mapper projects `r.name` / `r.pin_hash` (not the
 *      legacy keys).
 *   3. Empty result set yields `[]` without crashing.
 *   4. Boundary: an unknown date still produces a valid SQL query
 *      and a typed return shape.
 */
import { describe, it, expect, vi, beforeEach } from "vitest";

const { mockGetAdminUser, mockQuery } = vi.hoisted(() => {
  return {
    mockGetAdminUser: vi.fn(),
    mockQuery: vi.fn(),
  };
});

vi.mock("server-only", () => ({}));

vi.mock("@/lib/admin-permissions", () => ({
  getAdminUser: mockGetAdminUser,
}));

vi.mock("@/lib/db", () => ({
  getPool: () => ({ query: mockQuery }),
}));

// Stub the withBrand call inside `getRouteTimeSummary` so importing the
// module doesn't try to resolve drizzle at test time.
vi.mock("@/db/client", () => ({
  withBrand: vi.fn(async (_brandId: string, fn: (db: unknown) => unknown) =>
    fn({ select: () => ({ from: () => ({ where: () => ({ limit: () => [] }) }) }) }),
  ),
}));

// Stub the cross-module call into the admin time-tracking settings.
vi.mock("@/actions/time-tracking", () => ({
  getTimeTrackingSettings: vi.fn(async () => null),
}));

// Imported AFTER all mocks are wired.
import { getFleetRouteSummary } from "@/actions/time-tracking/route-summary";

const BRAND_ID = "11111111-2222-3333-4444-555555555555";
const TODAY = "2026-07-06";

beforeEach(() => {
  mockGetAdminUser.mockReset();
  mockQuery.mockReset();
  mockGetAdminUser.mockResolvedValue({ id: "admin-1", role: "platform_admin" });
});

describe("getFleetRouteSummary — SQL column contract", () => {
  it("references fw.name and fw.pin_hash (NOT the legacy fw.display_name / fw.pin)", async () => {
    mockQuery.mockResolvedValueOnce({ rows: [] });

    await getFleetRouteSummary(BRAND_ID, TODAY);

    expect(mockQuery).toHaveBeenCalledTimes(1);
    const [sql] = mockQuery.mock.calls[0];

    expect(sql).toContain("fw.name");
    expect(sql).toContain("fw.pin_hash");
    // The legacy columns must NOT appear anywhere in the query —
    // catching them in the SELECT, JOIN, or ORDER BY is the whole
    // point of this test.
    expect(sql).not.toMatch(/fw\.display_name/);
    expect(sql).not.toMatch(/\bfw\.pin\b/);
  });

  it("queries with the brand id and ISO date bounds (regression: off-by-one date math)", async () => {
    mockQuery.mockResolvedValueOnce({ rows: [] });

    await getFleetRouteSummary(BRAND_ID, TODAY);

    const [, params] = mockQuery.mock.calls[0];
    expect(params).toHaveLength(3);
    expect(params[0]).toBe(BRAND_ID);
    // Lower bound is the requested date at UTC midnight; upper bound
    // is the NEXT day at UTC midnight (24-hour window, half-open).
    expect(params[1]).toBe(`${TODAY}T00:00:00.000Z`);
    const upper = new Date(params[2] as string);
    const lower = new Date(params[1] as string);
    expect(upper.getTime() - lower.getTime()).toBe(24 * 60 * 60 * 1000);
  });
});

describe("getFleetRouteSummary — row projection", () => {
  it("maps the row's `name` field onto workerName and falls back when name is null", async () => {
    mockQuery.mockResolvedValueOnce({
      rows: [
        {
          id: "worker-1",
          name: "Tyler",
          pin_hash: "scrypt$abc123$xyz",
          active: true,
          water_entries: "3",
          water_gallons: "120",
          worked_minutes: "240",
          is_clocked_in: true,
        },
      ],
    });

    const rows = await getFleetRouteSummary(BRAND_ID, TODAY);

    expect(rows).toEqual([
      {
        workerId: "worker-1",
        workerName: "Tyler",
        active: true,
        water: { entryCount: 3, totalGallons: 120 },
        time: { workedMinutesToday: 240, isClockedIn: true },
      },
    ]);
  });

  it("falls back to a 6-char pin_hash fingerprint when name is null (not the legacy pin column)", async () => {
    mockQuery.mockResolvedValueOnce({
      rows: [
        {
          id: "worker-2",
          name: null,
          pin_hash: "scrypt$ABCDEF$rest",
          active: false,
          water_entries: "0",
          water_gallons: null,
          worked_minutes: "0",
          is_clocked_in: false,
        },
      ],
    });

    const rows = await getFleetRouteSummary(BRAND_ID, TODAY);

    expect(rows).toHaveLength(1);
    expect(rows[0].workerName).toBe("scrypt");
    expect(rows[0].active).toBe(false);
    expect(rows[0].water.totalGallons).toBe(0);
    expect(rows[0].time.workedMinutesToday).toBe(0);
    expect(rows[0].time.isClockedIn).toBe(false);
  });
});

describe("getFleetRouteSummary — boundaries + failure modes", () => {
  it("returns [] when there are no active workers in the brand", async () => {
    mockQuery.mockResolvedValueOnce({ rows: [] });

    const rows = await getFleetRouteSummary(BRAND_ID, TODAY);
    expect(rows).toEqual([]);
  });

  it("returns [] when the caller is unauthenticated (admin gate)", async () => {
    mockGetAdminUser.mockResolvedValueOnce(null);

    const rows = await getFleetRouteSummary(BRAND_ID, TODAY);
    expect(rows).toEqual([]);
    // Critical: we must not have hit the pool if auth failed.
    expect(mockQuery).not.toHaveBeenCalled();
  });

  it("defaults to today's UTC date when no date argument is supplied", async () => {
    mockQuery.mockResolvedValueOnce({ rows: [] });

    await getFleetRouteSummary(BRAND_ID);

    expect(mockQuery).toHaveBeenCalledTimes(1);
    const [, params] = mockQuery.mock.calls[0];
    // The bounds must form a one-day window; lower < upper, and
    // lower must be UTC midnight on today's date.
    const lower = new Date(params[1] as string);
    const upper = new Date(params[2] as string);
    expect(lower.getUTCHours()).toBe(0);
    expect(upper.getTime() - lower.getTime()).toBe(24 * 60 * 60 * 1000);
  });

  it("coerces null numeric aggregates to 0 (water_gallons / worked_minutes can be null)", async () => {
    mockQuery.mockResolvedValueOnce({
      rows: [
        {
          id: "worker-3",
          name: "Pat",
          pin_hash: "scrypt$XXX",
          active: true,
          water_entries: "0",
          water_gallons: null,
          worked_minutes: null,
          is_clocked_in: false,
        },
      ],
    });

    const rows = await getFleetRouteSummary(BRAND_ID, TODAY);

    expect(rows[0].water.totalGallons).toBe(0);
    expect(rows[0].water.entryCount).toBe(0);
    expect(rows[0].time.workedMinutesToday).toBe(0);
  });
});