import { describe, it, expect, vi, beforeEach } from "vitest";
import { Hono } from "hono";

// ─── Mocks ──────────────────────────────────────────────────────────────────
// GRO-2294: the POST /clients/geocode-batch handler must clamp ?limit to the
// documented maximum (500) before invoking the geocoding service. We mock the
// service to capture the exact limit the route forwards.

const geocodeUngeocodedClients = vi.fn(async () => ({
  totalRemaining: 0,
  processed: 0,
  geocoded: 0,
  failed: 0,
  remaining: 0,
}));

vi.mock("../services/clientGeocoding.js", () => ({
  geocodeUngeocodedClients,
  geocodeClient: vi.fn(),
  resolveClientGeocodingProvider: vi.fn(),
}));

vi.mock("@groombook/db", () => {
  const tableProxy = (name: string) =>
    new Proxy(
      { _name: name },
      { get: (_t, p) => (p === "_name" ? name : { table: name, column: p }) }
    );
  return {
    getDb: () => ({}),
    clients: tableProxy("clients"),
    appointments: tableProxy("appointments"),
    and: vi.fn(),
    eq: vi.fn(),
    or: vi.fn(),
    exists: vi.fn(),
  };
});

const { clientsRouter } = await import("../routes/clients.js");

const app = new Hono();
app.route("/clients", clientsRouter);

function postBatch(query: string) {
  return app.request(`/clients/geocode-batch${query}`, { method: "POST" });
}

describe("POST /clients/geocode-batch — ?limit cap (GRO-2294)", () => {
  beforeEach(() => {
    geocodeUngeocodedClients.mockClear();
  });

  it("defaults to 50 when no ?limit is supplied", async () => {
    const res = await postBatch("");
    expect(res.status).toBe(200);
    expect(geocodeUngeocodedClients).toHaveBeenCalledWith(expect.anything(), 50);
  });

  it("passes through a value within the cap", async () => {
    const res = await postBatch("?limit=120");
    expect(res.status).toBe(200);
    expect(geocodeUngeocodedClients).toHaveBeenCalledWith(expect.anything(), 120);
  });

  it("clamps an over-cap value to 500", async () => {
    const res = await postBatch("?limit=100000");
    expect(res.status).toBe(200);
    expect(geocodeUngeocodedClients).toHaveBeenCalledWith(expect.anything(), 500);
  });

  it("floors a fractional value before clamping", async () => {
    const res = await postBatch("?limit=49.9");
    expect(res.status).toBe(200);
    expect(geocodeUngeocodedClients).toHaveBeenCalledWith(expect.anything(), 49);
  });

  it("rejects a non-positive limit with 400", async () => {
    const res = await postBatch("?limit=0");
    expect(res.status).toBe(400);
    expect(geocodeUngeocodedClients).not.toHaveBeenCalled();
  });

  it("rejects a non-numeric limit with 400", async () => {
    const res = await postBatch("?limit=abc");
    expect(res.status).toBe(400);
    expect(geocodeUngeocodedClients).not.toHaveBeenCalled();
  });
});