import { render, screen } from "@testing-library/react"
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest"

import type { SelectionChart as SelectionChartData } from "../api/selection.types"

const chartMocks = vi.hoisted(() => ({
  disconnect: vi.fn(),
  dispose: vi.fn(),
  init: vi.fn(),
  observe: vi.fn(),
  resize: vi.fn(),
  setOption: vi.fn(),
  use: vi.fn(),
}))

vi.mock("echarts/charts", () => ({
  BarChart: {},
  CandlestickChart: {},
  LineChart: {},
}))
vi.mock("echarts/components", () => ({
  AxisPointerComponent: {},
  DataZoomComponent: {},
  GridComponent: {},
  LegendComponent: {},
  TitleComponent: {},
  TooltipComponent: {},
}))
vi.mock("echarts/core", () => ({
  init: chartMocks.init,
  use: chartMocks.use,
}))
vi.mock("echarts/renderers", () => ({ CanvasRenderer: {} }))

import { SelectionChart } from "./selection-chart"

const chart: SelectionChartData = {
  name: "药明康德",
  points: [
    {
      close: 10.5,
      d: 48,
      high: 11,
      j: 60,
      k: 52,
      low: 9,
      open: 10,
      trade_date: "2026-08-08",
      trend_white: 10.2,
      trend_yellow: 10.4,
      volume: 1000,
    },
  ],
  source_adj: "qfq",
  target_trade_date: "2026-08-08",
  ts_code: "603259.SH",
}

describe("SelectionChart", () => {
  beforeEach(() => {
    chartMocks.init.mockReturnValue({
      dispose: chartMocks.dispose,
      resize: chartMocks.resize,
      setOption: chartMocks.setOption,
    })
    vi.stubGlobal(
      "ResizeObserver",
      class {
        constructor(private readonly callback: ResizeObserverCallback) {}

        disconnect() {
          chartMocks.disconnect()
        }

        observe() {
          chartMocks.observe()
          this.callback([], this as unknown as ResizeObserver)
        }
      },
    )
  })

  afterEach(() => {
    vi.unstubAllGlobals()
    vi.clearAllMocks()
  })

  it("initializes, resizes, updates and disposes one chart instance", () => {
    const view = render(<SelectionChart chart={chart} />)

    expect(
      screen.getByRole("img", {
        name: "药明康德 日线、知行黄白线、成交量和 J 线图表",
      }),
    ).toBeInTheDocument()
    expect(chartMocks.init).toHaveBeenCalledTimes(1)
    expect(chartMocks.observe).toHaveBeenCalledTimes(1)
    expect(chartMocks.resize).toHaveBeenCalledTimes(1)
    expect(chartMocks.setOption).toHaveBeenCalledTimes(1)

    view.rerender(
      <SelectionChart
        chart={{ ...chart, points: [...chart.points, chart.points[0]] }}
      />,
    )
    expect(chartMocks.setOption).toHaveBeenCalledTimes(2)

    view.unmount()
    expect(chartMocks.disconnect).toHaveBeenCalledTimes(1)
    expect(chartMocks.dispose).toHaveBeenCalledTimes(1)
  })
})