/**
 * @file ReportSettings.test.tsx
 * @description Settings → Reports: a new report is saved with the browser's
 * timezone offset, Run now runs it, and History lists the runs with download
 * links built from the report and run ids.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { beforeEach, describe, expect, it, vi } from "vitest";
import i18n from "i18next";

const { reports } = vi.hoisted(() => ({
  reports: {
    list: vi.fn(),
    create: vi.fn(),
    update: vi.fn(),
    remove: vi.fn(),
    run: vi.fn(),
    runs: vi.fn(),
    fileUrl: (id: number, runId: number, f: string) => `/api/reports/${id}/runs/${runId}/${f}`,
  },
}));
vi.mock("../../../lib/api", () => ({ api: { reports } }));

import { ReportSettings } from "../ReportSettings";

const DEF = {
  id: 3,
  name: "Weekly summary",
  window_days: 7,
  frequency: "weekly" as const,
  hour: 8,
  weekday: 1,
  tz_offset: 0,
  formats: ["html" as const, "json" as const],
  enabled: true,
  created_at: "2026-10-01T00:00:00Z",
  last_slot: null,
  last_run: null,
};
const RUN = {
  id: 9,
  report_id: 3,
  created_at: "2026-10-05T01:00:00Z",
  trigger: "manual" as const,
  status: "ok" as const,
  window_from: "2026-09-28",
  window_to: "2026-10-04",
  files: ["html", "json"],
  error: null,
};

beforeEach(() => {
  i18n.changeLanguage("en");
  vi.clearAllMocks();
});

describe("ReportSettings", () => {
  it("creates a report with the browser's timezone offset", async () => {
    const user = userEvent.setup();
    reports.list.mockResolvedValueOnce({ reports: [] }).mockResolvedValue({ reports: [DEF] });
    reports.create.mockResolvedValue({ report: DEF });
    render(<ReportSettings />);
    await user.click(await screen.findByRole("button", { name: /New report/ }));
    await user.click(screen.getByRole("checkbox", { name: "JSON" }));
    await user.click(screen.getByRole("button", { name: "Save" }));
    await waitFor(() =>
      expect(reports.create).toHaveBeenCalledWith({
        name: "Weekly summary",
        window_days: 7,
        frequency: "weekly",
        hour: 8,
        weekday: 1,
        tz_offset: new Date().getTimezoneOffset(),
        formats: ["html", "json"],
        enabled: true,
      })
    );
    expect(await screen.findByText(/last 7 days · HTML, JSON/)).toBeInTheDocument();
  });

  it("runs a report now and lists its runs with download links", async () => {
    const user = userEvent.setup();
    reports.list.mockResolvedValue({ reports: [DEF] });
    reports.run.mockResolvedValue({ run: RUN });
    reports.runs.mockResolvedValue({ runs: [RUN] });
    render(<ReportSettings />);
    await user.click(await screen.findByRole("button", { name: "Run now" }));
    expect(reports.run).toHaveBeenCalledWith(3);
    await user.click(screen.getByRole("button", { name: "History" }));
    const link = await screen.findByRole("link", { name: /HTML/ });
    expect(link).toHaveAttribute("href", "/api/reports/3/runs/9/html");
    expect(screen.getByText(/2026-09-28 → 2026-10-04/)).toBeInTheDocument();
  });
});