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

import { HomePage } from "./home-page"

const useHomeOverview = vi.fn()

vi.mock("@/features/home/api/home.query", () => ({
  useHomeOverview: () => useHomeOverview(),
}))

const overview = {
  status: "partial_success" as const,
  stock_pool_count: 3,
  latest_update: {
    trade_date: "2026-08-06",
    completed_at: "2026-08-07T08:30:00Z",
    status: "partial_success" as const,
    target_count: 3,
    successful_count: 1,
    failed_count: 2,
    valid_count: 1,
    coverage_rate: 1 / 3,
    failures: [
      {
        ts_code: "000001.SZ",
        name: "平安银行",
        failure_type: "missing_daily_bar",
        reason: "目标交易日缺少日线行情",
        trade_date: "2026-08-06",
      },
      {
        ts_code: "600000.SH",
        name: "浦发银行",
        failure_type: "recorded_stock_failure",
        reason: "供应商请求失败",
        trade_date: "2026-08-06",
      },
    ],
    batch_errors: [],
  },
}

describe("HomePage", () => {
  beforeEach(() => {
    useHomeOverview.mockReturnValue({
      data: overview,
      isError: false,
      isPending: false,
      refetch: vi.fn(),
    })
  })

  it("renders the management shell and partial overview", () => {
    render(<HomePage />)

    expect(screen.getByRole("heading", { name: "首页" })).toBeInTheDocument()
    expect(screen.getByText("市场数据概览")).toBeInTheDocument()
    expect(screen.getByText("部分更新")).toBeInTheDocument()
    expect(screen.getByText("当前目标股票池")).toBeInTheDocument()
    expect(screen.getByText("33.33%")).toBeInTheDocument()
    expect(screen.getByRole("button", { name: "行情数据" })).toBeDisabled()
    expect(screen.getByRole("button", { name: "同步任务" })).toBeDisabled()
    expect(screen.getByRole("link", { name: "选股策略" })).toHaveAttribute(
      "href",
      "/selection",
    )
  })

  it("opens and closes the accessible failed-stock dialog", () => {
    render(<HomePage />)

    fireEvent.click(screen.getByRole("button", { name: "查看失败股票" }))

    const dialog = screen.getByRole("dialog", { name: "失败股票详情" })
    expect(dialog).toBeInTheDocument()
    expect(within(dialog).getByText("平安银行")).toBeInTheDocument()
    expect(within(dialog).getByText("缺少日线行情")).toBeInTheDocument()
    expect(within(dialog).getAllByText("目标交易日：2026-08-06")).toHaveLength(
      2,
    )

    fireEvent.click(screen.getByRole("button", { name: "关闭" }))
    expect(screen.queryByRole("dialog")).not.toBeInTheDocument()
  })

  it("renders a loading placeholder", () => {
    useHomeOverview.mockReturnValue({
      data: undefined,
      isError: false,
      isPending: true,
    })

    render(<HomePage />)

    expect(screen.getByLabelText("正在加载市场数据概览")).toBeInTheDocument()
  })

  it("offers retry when the overview request fails", () => {
    const refetch = vi.fn()
    useHomeOverview.mockReturnValue({
      data: undefined,
      isError: true,
      isPending: false,
      refetch,
    })

    render(<HomePage />)
    fireEvent.click(screen.getByRole("button", { name: "重试" }))

    expect(refetch).toHaveBeenCalledOnce()
  })

  it.each([
    ["updating", "更新中"],
    ["success", "已更新"],
    ["failed", "未更新"],
  ] as const)("renders the %s overview status", (status, label) => {
    useHomeOverview.mockReturnValue({
      data: {
        ...overview,
        status,
        latest_update: { ...overview.latest_update, status },
      },
      isError: false,
      isPending: false,
    })

    render(<HomePage />)

    expect(screen.getByText(label)).toBeInTheDocument()
  })

  it("closes the failed-stock dialog with Escape", () => {
    render(<HomePage />)

    fireEvent.click(screen.getByRole("button", { name: "查看失败股票" }))
    const dialog = screen.getByRole("dialog", { name: "失败股票详情" })

    fireEvent.keyDown(dialog, { key: "Escape" })

    expect(screen.queryByRole("dialog")).not.toBeInTheDocument()
  })

  it("keeps the shell and explains the no-data state", () => {
    useHomeOverview.mockReturnValue({
      data: { status: "no_data", stock_pool_count: 7, latest_update: null },
      isError: false,
      isPending: false,
    })

    render(<HomePage />)

    expect(screen.getByText("暂无市场数据")).toBeInTheDocument()
    expect(screen.getByText(/当前目标股票池：/)).toBeInTheDocument()
  })
})