// @vitest-environment jsdom
import { mount } from "@vue/test-utils";
import { describe, expect, it, vi, beforeEach } from "vitest";
import { nextTick } from "vue";

const { getObjectsMock } = vi.hoisted(() => ({
  getObjectsMock: vi.fn(),
}));

vi.mock("@/components/session/token/SessionUser/Objects/ObjectsGlobal.vue", () => ({
  ObjectsGlobal: {
    get: {
      objects: getObjectsMock,
    },
  },
}));

import DepartmentWeather from "@/views/dashboards/departmentDashboard/modules/daily-report/DepartmentWeather.vue";

const flushAll = async () => {
  await nextTick();
  await Promise.resolve();
  await nextTick();
  await Promise.resolve();
};

const createDeferred = () => {
  let resolve;
  let reject;
  const promise = new Promise((res, rej) => {
    resolve = res;
    reject = rej;
  });
  return { promise, resolve, reject };
};

const makeEntry = (overrides = {}) => ({
  date: "2026-03-24",
  time: "00:00",
  current: false,
  weather: "clear",
  washes: 1,
  hours: 2,
  status: "healthy",
  ...overrides,
});

const getFirstWashesCellText = (wrapper) => {
  const rows = wrapper.findAll("tbody tr");
  const washesRow = rows[1];
  if (!washesRow) {
    return null;
  }
  const cells = washesRow.findAll("td");
  return cells[1]?.text() ?? null;
};

const getRenderedHours = (wrapper) => {
  const headers = wrapper.findAll("thead tr th").slice(1);
  return headers.map((th) => th.text());
};

const getRowValues = (wrapper, rowIndex) => {
  const rows = wrapper.findAll("tbody tr");
  const row = rows[rowIndex];
  if (!row) {
    return [];
  }
  return row
    .findAll("td")
    .slice(1)
    .map((td) => td.text());
};

const getProductivityCellClasses = (wrapper) => {
  const rows = wrapper.findAll("tbody tr");
  const productivityRow = rows[3];
  if (!productivityRow) {
    return [];
  }
  return productivityRow
    .findAll("td")
    .slice(1)
    .map((td) => td.classes());
};

describe("DepartmentWeather", () => {
  beforeEach(() => {
    getObjectsMock.mockReset();
  });

  it("calls weather endpoint with ids/date_from/date_to", async () => {
    getObjectsMock.mockResolvedValueOnce([makeEntry()]);

    mount(DepartmentWeather, {
      props: {
        department_ids: [3, 1, 3, 2],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();

    expect(getObjectsMock).toHaveBeenCalledTimes(1);
    expect(getObjectsMock).toHaveBeenCalledWith("/departments/weather", {
      ids: "1,2,3",
      date_from: "2026-03-23",
      date_to: "2026-03-24",
    });
  });

  it("refetches when ids or dates change", async () => {
    getObjectsMock.mockResolvedValueOnce([makeEntry({ washes: 3 })]).mockResolvedValueOnce([makeEntry({ washes: 7 })]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [2],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();

    await wrapper.setProps({
      department_ids: [2, 5],
      date_from: "2026-03-24",
      date_to: "2026-03-25",
    });
    await flushAll();

    expect(getObjectsMock).toHaveBeenCalledTimes(2);
    expect(getObjectsMock).toHaveBeenNthCalledWith(2, "/departments/weather", {
      ids: "2,5",
      date_from: "2026-03-24",
      date_to: "2026-03-25",
    });
  });

  it("clears and skips fetch when no departments are selected", async () => {
    getObjectsMock.mockResolvedValueOnce([makeEntry()]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [9],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();
    expect(wrapper.find("section.daily-metrics").exists()).toBe(true);

    await wrapper.setProps({
      department_ids: [],
    });
    await flushAll();

    expect(getObjectsMock).toHaveBeenCalledTimes(1);
    expect(wrapper.find("section.daily-metrics").exists()).toBe(false);
  });

  it("ignores stale responses when a newer request finishes first", async () => {
    const first = createDeferred();
    const second = createDeferred();

    getObjectsMock.mockImplementationOnce(() => first.promise).mockImplementationOnce(() => second.promise);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await nextTick();

    await wrapper.setProps({
      date_to: "2026-03-25",
    });
    await nextTick();

    second.resolve([makeEntry({ washes: 9002, time: "01:00" })]);
    await flushAll();
    expect(getFirstWashesCellText(wrapper)).toBe("9002");

    first.resolve([makeEntry({ washes: 9001, time: "00:00" })]);
    await flushAll();
    expect(getFirstWashesCellText(wrapper)).toBe("9002");
  });

  it("shows loading state while weather request is in flight", async () => {
    const pending = createDeferred();
    getObjectsMock.mockImplementationOnce(() => pending.promise);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-24",
        date_to: "2026-03-24",
      },
    });

    await nextTick();
    expect(wrapper.find(".daily-metrics-loading").exists()).toBe(true);
    expect(wrapper.find("table.table").exists()).toBe(false);

    pending.resolve([makeEntry({ time: "06:00", washes: 4, hours: 2 })]);
    await flushAll();

    expect(wrapper.find(".daily-metrics-loading").exists()).toBe(false);
    expect(wrapper.find("table.table").exists()).toBe(true);
  });

  it("hides hour columns when both washes and hours are zero", async () => {
    getObjectsMock.mockResolvedValueOnce([
      makeEntry({ time: "00:00", washes: 0, hours: 0 }),
      makeEntry({ time: "01:00", washes: "0", hours: "0" }),
      makeEntry({ time: "06:00", washes: 1, hours: 0 }),
      makeEntry({ time: "07:00", washes: 0, hours: 2 }),
    ]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-24",
        date_to: "2026-03-24",
      },
    });

    await flushAll();

    expect(getRenderedHours(wrapper)).toEqual(["06", "07"]);
  });

  it("shows summary toggle only for multi-day selections", async () => {
    getObjectsMock.mockResolvedValueOnce([makeEntry({ time: "06:00", washes: 1, hours: 1 })]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();
    expect(wrapper.find("button.summary-toggle").exists()).toBe(true);

    await wrapper.setProps({
      date_to: "2026-03-23",
    });
    await flushAll();
    expect(wrapper.find("button.summary-toggle").exists()).toBe(false);
  });

  it("summarizes entries by day when toggle is enabled", async () => {
    getObjectsMock.mockResolvedValueOnce([
      makeEntry({ date: "2026-03-23", time: "06:00", weather: "clear", washes: 1, hours: 1, status: "healthy" }),
      makeEntry({ date: "2026-03-23", time: "07:00", weather: "rain", washes: 2, hours: 0, status: "degraded" }),
      makeEntry({ date: "2026-03-23", time: "08:00", weather: "rain", washes: 0, hours: 1, status: "degraded" }),
      makeEntry({ date: "2026-03-24", time: "09:00", weather: "showers", washes: 0, hours: 2, status: "healthy" }),
      makeEntry({ date: "2026-03-24", time: "10:00", weather: "showers", washes: 0, hours: 1, status: "degraded" }),
      makeEntry({ date: "2026-03-24", time: "11:00", weather: "rain", washes: 1, hours: 0, status: "unhealthy" }),
    ]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();
    expect(getRenderedHours(wrapper)).toEqual(["06", "07", "08", "09", "10", "11"]);

    await wrapper.get("button.summary-toggle").trigger("click");
    await flushAll();
    expect(getRenderedHours(wrapper)).toEqual(["23/03", "24/03"]);
    expect(getRowValues(wrapper, 1)).toEqual(["3", "1"]);
    expect(getRowValues(wrapper, 2)).toEqual(["2", "3"]);
    expect(getProductivityCellClasses(wrapper)).toEqual([
      expect.arrayContaining(["green"]),
      expect.arrayContaining(["red"]),
    ]);
  });

  it("starts in hourly mode and lets users toggle to daily summary in multi-day mode", async () => {
    getObjectsMock.mockResolvedValueOnce([
      makeEntry({ date: "2026-03-23", time: "06:00", washes: 1, hours: 1 }),
      makeEntry({ date: "2026-03-23", time: "07:00", washes: 2, hours: 2 }),
      makeEntry({ date: "2026-03-24", time: "08:00", washes: 3, hours: 3 }),
    ]);

    const wrapper = mount(DepartmentWeather, {
      props: {
        department_ids: [1],
        date_from: "2026-03-23",
        date_to: "2026-03-24",
      },
    });

    await flushAll();
    expect(getRenderedHours(wrapper)).toEqual(["06", "07", "08"]);

    await wrapper.get("button.summary-toggle").trigger("click");
    await flushAll();
    expect(getRenderedHours(wrapper)).toEqual(["23/03", "24/03"]);
  });
});