import { beforeEach, describe, expect, mock, test } from "bun:test";

const queryMock = mock(async () => [
  {
    date: "2026-04-01 13:00:00",
    calls: 1,
    prompt_tokens: 10,
    completion_tokens: 20,
    cache_creation_tokens: 3,
    cache_read_tokens: 4,
    quota: 100,
  },
]);

mock.module("./db", () => ({
  query: queryMock,
}));

const { getTrends } = await import("./queries");

describe("getTrends", () => {
  beforeEach(() => {
    queryMock.mockClear();
  });

  test("adds optional detail filters to the trend query", async () => {
    await getTrends("day", 101, 201, { username: "alice" });
    expect(queryMock.mock.calls[0][0]).toContain("username = $3");
    expect(queryMock.mock.calls[0][1]).toEqual([101, 201, "alice"]);

    await getTrends("day", 102, 202, { model: "gpt-4.1" });
    expect(queryMock.mock.calls[1][0]).toContain("= $3");
    expect(queryMock.mock.calls[1][1]).toEqual([102, 202, "gpt-4.1"]);

    await getTrends("day", 103, 203, { channelId: 7 });
    expect(queryMock.mock.calls[2][0]).toContain("channel_id = $3");
    expect(queryMock.mock.calls[2][1]).toEqual([103, 203, 7]);
  });

  test("keeps the hour in hourly trend buckets", async () => {
    const trends = await getTrends("hour", 104, 204);

    expect(queryMock.mock.calls[0][0]).toContain("date_trunc('hour'");
    expect(trends[0].date).toBe("2026-04-01 13:00");
  });
});