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

import type {
  RadarDatesResponse,
  RadarRankingsResponse,
  SectorRadarRouteSearch,
} from "../api/sector-radar.types"

import { SectorRadarPage } from "./sector-radar-page"

const navigate = vi.hoisted(() => vi.fn())
const useSectorRadarDates = vi.fn()
const useSectorRadarRankings = vi.fn()
const refetchDates = vi.fn()
const refetchRankings = vi.fn()
const fetchNextPage = vi.fn()

let routeSearch: SectorRadarRouteSearch

vi.mock("@tanstack/react-router", () => ({
  useNavigate: () => navigate,
  useSearch: () => routeSearch,
}))

vi.mock("@/features/sector-radar/api/sector-radar.query", () => ({
  useSectorRadarDates: () => useSectorRadarDates(),
  useSectorRadarRankings: (...args: unknown[]) =>
    useSectorRadarRankings(...args),
}))

const successPublication = {
  publication_id: "publication-success",
  target_trade_date: "2026-08-28",
  status: "success" as const,
  source_version: "tushare-pro-v1",
  universe_version: "eastmoney-dc-v1",
  metric_versions: ["zhixing_amount_net_bn_v1"],
  input_hash: "a".repeat(64),
  coverage: 0.99,
  started_at: "2026-08-28T08:00:00Z",
  finished_at: "2026-08-28T08:05:00Z",
  error_summary: null,
}

const datesResponse: RadarDatesResponse = {
  status: "success",
  available_dates: ["2026-08-28", "2026-08-27"],
  current_attempt: successPublication,
  last_good: successPublication,
}

const rankingsResponse: RadarRankingsResponse = {
  status: "success",
  requested_trade_date: null,
  sector_type: "concept",
  view: "amount",
  rank_change_metric: "amount",
  rank_change_days: 1,
  side: "all",
  search: null,
  publication: successPublication,
  definition: {
    metric_kind: "amount",
    metric_version: "zhixing_amount_net_bn_v1",
    label: "主力净流入（知行独立实现）",
    unit: "CNY_100M",
    implementation_kind: "independent",
    disclaimer: "知行独立实现，非 OneChartLab 原站公式。",
  },
  page: 1,
  page_size: 20,
  total: 2,
  rows: [
    {
      trade_date: "2026-08-28",
      sector_type: "concept",
      sector_code: "BK0001.DC",
      sector_name: "机器人",
      metric_kind: "amount",
      metric_version: "zhixing_amount_net_bn_v1",
      implementation_kind: "independent",
      unit: "CNY_100M",
      metric_value: 12.5,
      quality: "available",
      member_count: 20,
      valid_sample_count: 19,
      membership_coverage: 1,
      moneyflow_coverage: 0.95,
      rank_position: 1,
      rank_percentile: 100,
      rank_change_days: 1,
      rank_change: 3,
    },
    {
      trade_date: "2026-08-28",
      sector_type: "concept",
      sector_code: "BK0002.DC",
      sector_name: "低空经济",
      metric_kind: "amount",
      metric_version: "zhixing_amount_net_bn_v1",
      implementation_kind: "independent",
      unit: "CNY_100M",
      metric_value: null,
      quality: "available_limited_sample",
      member_count: 4,
      valid_sample_count: 3,
      membership_coverage: 1,
      moneyflow_coverage: 0.75,
      rank_position: null,
      rank_percentile: null,
      rank_change_days: 1,
      rank_change: null,
    },
  ],
}

const bottomRankingsResponse: RadarRankingsResponse = {
  ...rankingsResponse,
  side: "bottom",
  rows: rankingsResponse.rows.map((row, index) => ({
    ...row,
    sector_code: `BOTTOM-${index + 1}`,
    sector_name: index === 0 ? "新能源" : "医药商业",
    metric_value: index === 0 ? -8.4 : null,
    rank_position: index + 1,
  })),
}

function rankingQueryResult(overrides: Record<string, unknown> = {}) {
  return {
    data: { pageParams: [1], pages: [rankingsResponse] },
    fetchNextPage,
    hasNextPage: false,
    isError: false,
    isFetchNextPageError: false,
    isFetching: false,
    isFetchingNextPage: false,
    isPending: false,
    refetch: refetchRankings,
    ...overrides,
  }
}

describe("SectorRadarPage", () => {
  beforeEach(() => {
    routeSearch = {
      tradeDate: undefined,
      sectorType: "concept",
      view: "amount",
      rankChangeMetric: "amount",
      rankChangeDays: 1,
      side: "all",
      search: "",
      page: 1,
      pageSize: 20,
    }
    useSectorRadarDates.mockReturnValue({
      data: datesResponse,
      isError: false,
      isFetching: false,
      isPending: false,
      refetch: refetchDates,
    })
    useSectorRadarRankings.mockReturnValue(rankingQueryResult())
    navigate.mockReset()
    refetchDates.mockReset()
    refetchRankings.mockReset()
    fetchNextPage.mockReset()
    fetchNextPage.mockResolvedValue(undefined)
  })

  it("renders ranking rows without the description card or pagination", () => {
    render(<SectorRadarPage />)

    expect(screen.getAllByText("+12.5 亿元")[0]).toBeInTheDocument()
    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.getAllByText("样本有限")[0]).toBeInTheDocument()
    expect(screen.getAllByText("95%")[0]).toBeInTheDocument()
    expect(screen.queryByText("收盘后板块资金排名")).not.toBeInTheDocument()
    expect(
      screen.queryByText("知行独立实现，非 OneChartLab 原站公式。"),
    ).not.toBeInTheDocument()
    expect(
      screen.queryByText("zhixing_amount_net_bn_v1"),
    ).not.toBeInTheDocument()
    expect(
      screen.queryByRole("button", { name: "第 1 页" }),
    ).not.toBeInTheDocument()
    expect(
      screen.queryByRole("combobox", { name: "每页数量" }),
    ).not.toBeInTheDocument()
  })

  it("resets filters to the first batch in router search state", () => {
    routeSearch = { ...routeSearch, page: 3 }
    render(<SectorRadarPage />)

    fireEvent.change(screen.getByRole("searchbox", { name: "搜索板块" }), {
      target: { value: "机器人" },
    })

    const searchCall = navigate.mock.calls[0]?.[0].search as (
      previous: SectorRadarRouteSearch,
    ) => SectorRadarRouteSearch
    expect(searchCall({ ...routeSearch, page: 3 })).toMatchObject({
      page: 1,
      search: "机器人",
    })
  })

  it("renders accessible tabs, writes tab state to the URL, and queries both sides", () => {
    render(<SectorRadarPage />)

    expect(
      screen.getByRole("tablist", { name: "板块类型" }),
    ).toBeInTheDocument()
    expect(
      screen.getByRole("tablist", { name: "指标视角" }),
    ).toBeInTheDocument()
    expect(screen.getByRole("tab", { name: "单日净额" })).toHaveAttribute(
      "aria-selected",
      "true",
    )
    expect(useSectorRadarRankings).toHaveBeenNthCalledWith(
      1,
      expect.objectContaining({ side: "top", view: "amount" }),
    )
    expect(useSectorRadarRankings).toHaveBeenNthCalledWith(
      2,
      expect.objectContaining({ side: "bottom", view: "amount" }),
    )

    fireEvent.click(screen.getByRole("tab", { name: "行业" }))
    const searchCall = navigate.mock.calls[0]?.[0].search as (
      previous: SectorRadarRouteSearch,
    ) => SectorRadarRouteSearch
    expect(searchCall({ ...routeSearch, page: 4 })).toMatchObject({
      page: 1,
      sectorType: "industry",
    })
  })

  it("loads the next page once when repeated scroll events reach the bottom", () => {
    fetchNextPage.mockReturnValue(new Promise(() => undefined))
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({ hasNextPage: true }),
    )
    render(<SectorRadarPage />)
    const scrollRegion = screen.getByRole("region", {
      name: "板块资金排名滚动区域",
    })
    Object.defineProperties(scrollRegion, {
      clientHeight: { configurable: true, value: 300 },
      scrollHeight: { configurable: true, value: 1_000 },
      scrollTop: { configurable: true, value: 550 },
    })

    fireEvent.scroll(scrollRegion)
    fireEvent.scroll(scrollRegion)

    expect(fetchNextPage).toHaveBeenCalledOnce()
  })

  it("announces that the next page is loading without hiding loaded rows", () => {
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({
        hasNextPage: true,
        isFetching: true,
        isFetchingNextPage: true,
      }),
    )

    render(<SectorRadarPage />)

    expect(screen.getByRole("status")).toHaveTextContent("正在加载更多板块")
    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.queryByText("雷达数据正在刷新")).not.toBeInTheDocument()
  })

  it("merges rows from every loaded page", () => {
    const firstPage = { ...rankingsResponse, total: 3 }
    const nextPage = {
      ...rankingsResponse,
      page: 2,
      total: 3,
      rows: [
        {
          ...rankingsResponse.rows[0],
          sector_code: "BK0003.DC",
          sector_name: "商业航天",
          rank_position: 3,
        },
      ],
    }
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({
        data: { pageParams: [1, 2], pages: [firstPage, nextPage] },
      }),
    )

    render(<SectorRadarPage />)

    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.getAllByText("低空经济")[0]).toBeInTheDocument()
    expect(screen.getAllByText("商业航天")[0]).toBeInTheDocument()
  })

  it("keeps loaded rows and offers retry when loading more fails", () => {
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({
        hasNextPage: true,
        isError: true,
        isFetchNextPageError: true,
      }),
    )

    render(<SectorRadarPage />)

    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.getByRole("alert")).toHaveTextContent(
      "强榜加载更多失败，弱榜加载更多失败，已加载结果仍保留",
    )
    expect(screen.queryByText("雷达数据刷新失败")).not.toBeInTheDocument()
    fireEvent.click(screen.getByRole("button", { name: "重试强榜" }))
    expect(fetchNextPage).toHaveBeenCalledOnce()
  })

  it("keeps the healthy side visible when only the other side fails to load more", () => {
    const topFetchNextPage = vi.fn().mockResolvedValue(undefined)
    const bottomFetchNextPage = vi.fn().mockResolvedValue(undefined)
    useSectorRadarRankings.mockImplementation((query: { side: string }) =>
      rankingQueryResult({
        data: {
          pageParams: [1],
          pages: [
            query.side === "bottom" ? bottomRankingsResponse : rankingsResponse,
          ],
        },
        fetchNextPage:
          query.side === "bottom" ? bottomFetchNextPage : topFetchNextPage,
        isFetchNextPageError: query.side === "bottom",
        hasNextPage: true,
      }),
    )

    render(<SectorRadarPage />)

    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.getByText("新能源")).toBeInTheDocument()
    expect(screen.getByRole("alert")).toHaveTextContent("弱榜加载更多失败")
    expect(screen.getByRole("button", { name: "重试弱榜" })).toBeInTheDocument()
    fireEvent.click(screen.getByRole("button", { name: "重试弱榜" }))
    expect(bottomFetchNextPage).toHaveBeenCalledOnce()
    expect(topFetchNextPage).not.toHaveBeenCalled()
  })

  it("shows rank changes without inventing missing history", () => {
    routeSearch = { ...routeSearch, view: "rank_change", rankChangeDays: 5 }
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({
        data: {
          pageParams: [1],
          pages: [
            {
              ...rankingsResponse,
              view: "rank_change",
              rank_change_days: 5,
              rows: rankingsResponse.rows.map((row, index) => ({
                ...row,
                rank_change_days: 5,
                rank_change: index === 0 ? 3 : null,
              })),
            },
          ],
        },
      }),
    )

    render(<SectorRadarPage />)

    expect(
      screen.getByRole("columnheader", { name: "排名上升" }),
    ).toBeInTheDocument()
    expect(screen.getAllByText("+3 名")[0]).toBeInTheDocument()
    expect(screen.getAllByText("暂无可比历史")[0]).toBeInTheDocument()
  })

  it("warns when a partial attempt has not replaced last-good", () => {
    useSectorRadarDates.mockReturnValue({
      data: {
        ...datesResponse,
        current_attempt: {
          ...successPublication,
          publication_id: "publication-partial",
          target_trade_date: "2026-08-29",
          status: "partial",
          coverage: 0.8,
          input_hash: null,
        },
      },
      isError: false,
      isFetching: false,
      isPending: false,
      refetch: refetchDates,
    })

    render(<SectorRadarPage />)

    expect(screen.getByRole("status")).toHaveTextContent("新一期数据不完整")
    expect(screen.getByRole("status")).toHaveTextContent(
      "当前仍展示最近有效发布 2026-08-28",
    )
  })

  it("keeps the last response visible while React Query refreshes it", () => {
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({ isFetching: true }),
    )

    render(<SectorRadarPage />)

    expect(screen.getByRole("status")).toHaveTextContent(
      "当前继续展示上一次已读取的有效结果",
    )
    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
  })

  it("keeps stale data visible when a background refresh fails", () => {
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({ isError: true }),
    )

    render(<SectorRadarPage />)

    expect(screen.getByRole("status")).toHaveTextContent("雷达数据刷新失败")
    expect(screen.getAllByText("机器人")[0]).toBeInTheDocument()
    expect(screen.queryByText("板块资金雷达暂时不可用")).not.toBeInTheDocument()
  })

  it("shows a fatal error when one side has no data and the other has no response", () => {
    useSectorRadarRankings.mockImplementation((query: { side: string }) =>
      rankingQueryResult(
        query.side === "top"
          ? {
              data: {
                pageParams: [1],
                pages: [
                  {
                    ...rankingsResponse,
                    side: "top",
                    status: "no_data",
                    publication: null,
                    rows: [],
                    total: 0,
                  },
                ],
              },
            }
          : { data: undefined, isError: true },
      ),
    )

    render(<SectorRadarPage />)

    expect(screen.getByText("板块资金雷达暂时不可用")).toBeInTheDocument()
  })

  it("renders loading, error with retry, and no-data states", () => {
    useSectorRadarDates.mockReturnValue({
      data: undefined,
      isError: false,
      isFetching: true,
      isPending: true,
      refetch: refetchDates,
    })
    useSectorRadarRankings.mockReturnValue({
      data: undefined,
      fetchNextPage,
      hasNextPage: false,
      isError: false,
      isFetchNextPageError: false,
      isFetching: true,
      isFetchingNextPage: false,
      isPending: true,
      refetch: refetchRankings,
    })
    const { rerender } = render(<SectorRadarPage />)
    expect(screen.getByLabelText("正在加载板块资金雷达")).toBeInTheDocument()

    useSectorRadarDates.mockReturnValue({
      data: undefined,
      isError: true,
      isFetching: false,
      isPending: false,
      refetch: refetchDates,
    })
    useSectorRadarRankings.mockReturnValue({
      data: undefined,
      fetchNextPage,
      hasNextPage: false,
      isError: true,
      isFetchNextPageError: false,
      isFetching: false,
      isFetchingNextPage: false,
      isPending: false,
      refetch: refetchRankings,
    })
    rerender(<SectorRadarPage />)
    fireEvent.click(screen.getByRole("button", { name: "重试" }))
    expect(refetchDates).toHaveBeenCalledOnce()
    expect(refetchRankings).toHaveBeenCalledTimes(2)

    useSectorRadarDates.mockReturnValue({
      data: {
        status: "no_data",
        available_dates: [],
        current_attempt: null,
        last_good: null,
      },
      isError: false,
      isFetching: false,
      isPending: false,
      refetch: refetchDates,
    })
    useSectorRadarRankings.mockReturnValue(
      rankingQueryResult({
        data: {
          pageParams: [1],
          pages: [
            {
              ...rankingsResponse,
              status: "no_data",
              publication: null,
              rows: [],
              total: 0,
            },
          ],
        },
      }),
    )
    rerender(<SectorRadarPage />)
    expect(screen.getByText("暂无板块资金发布")).toBeInTheDocument()
  })
})