import { WorkspaceTable } from "../components/WorkspaceTable";
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import {
  Banner,
  Button,
  Checkbox,
  CheckboxGroup,
  Empty,
  Input,
  Modal,
  Popover,
  Pagination,
  Select,
  Tag,
  TextArea,
  Toast,
  Typography,
} from "@douyinfe/semi-ui-19";
import {
  IconFilter,
  IconSetting,
  IconSort,
  IconSearch,
  IconClose,
  IconDownload,
  IconUpload,
  IconRefresh,
} from "@douyinfe/semi-icons";
import "./AlphaPage.css";
import { formatAlphaMetric } from "../alphaMetrics";
import type { ColumnProps } from "@douyinfe/semi-ui-19/lib/es/table/interface";
import {
  api,
  correlationLabels,
  formatNumber,
  formatTime,
  patch,
  post,
  queryString,
  stateLabels,
  stateOptions,
} from "../api";
import type {
  Account,
  Alpha,
  AlphaPage as Page,
  Facets,
  Job,
  Submission,
} from "../types";
import { AlphaDetail } from "../components/AlphaDetail";
import { AlphaSyncDialog } from "../components/AlphaSyncDialog";
import type { PageContext, AlphaUIAction as UIAction } from "../ai/types";
import type { UIAction as WorkspaceAction } from "../ai/types";
import { SavedViews } from "../research/SavedViews";
import { sourceLabel } from "../research/SourceDetails";

const metricLabels = {
  sharpe: "Sharpe",
  fitness: "Fitness",
  returns: "Returns",
  turnover: "Turnover",
  margin: "Margin",
  drawdown: "Drawdown",
  sub_universe_sharpe: "子股票池 Sharpe",
  robust_universe_sharpe: "稳健股票池 Sharpe",
  two_year_sharpe: "近两年 Sharpe",
  prod_correlation: "平台生产相关性",
  pnl: "IS PnL",
};
const metricColorThresholds: Record<string, [number, number, number]> = {
  sharpe: [1.5, 1.0, 0.5],
  fitness: [0.75, 0.5, 0.25],
  returns: [0.15, 0.1, 0.05],
};

/** Preserve the legacy list's strict thresholds; missing values have no rating. */
function metricColor(key: string, value: unknown): string | undefined {
  const thresholds = metricColorThresholds[key];
  if (!thresholds || typeof value !== "number" || !Number.isFinite(value))
    return undefined;
  if (value > thresholds[0]) return "var(--semi-color-success)";
  if (value > thresholds[1]) return "var(--semi-color-info)";
  if (value > thresholds[2]) return "var(--semi-color-warning)";
  return "var(--semi-color-danger)";
}

/** Format metrics only for display; filtering and sorting still use raw values. */
function formatMetric(key: string, value: unknown): string {
  const headline = formatAlphaMetric(key, value);
  if (headline !== undefined) return headline;
  if (key !== "margin") return formatNumber(value, 3);
  return typeof value === "number" && Number.isFinite(value)
    ? `${formatNumber(value * 10000, 2)}bps`
    : "—";
}

const checkLabels = {
  PENDING: "待检查",
  PRE_CHECK: "预检通过",
  PASS: "检查通过",
  FAIL_1: "FAIL=1",
  FAIL_2: "FAIL≥2",
};
const initialColumns = [
  "name",
  "expression",
  "region",
  "status",
  "check_type",
  "failed_checks",
  "tags",
  "sharpe",
  "fitness",
  "turnover",
  "correlation",
  "research",
  "source",
];
const columnLabels: Record<string, string> = {
  selection: "Selection",
  combo: "Combo",
  component_count: "组件数（已核实）",
  source: "研究来源",
  name: "Alpha",
  expression: "表达式",
  region: "地区 / Universe",
  status: "平台状态",
  sharpe: "Sharpe",
  fitness: "Fitness",
  returns: "Returns",
  turnover: "Turnover",
  margin: "Margin",
  drawdown: "Drawdown",
  research: "研究状态",
  tags: "自定义标签",
  check_type: "检查结果",
  failed_checks: "失败项",
  neutralization: "中性化",
  synced: "同步时间",
  sub_universe_sharpe: metricLabels.sub_universe_sharpe,
  robust_universe_sharpe: metricLabels.robust_universe_sharpe,
  two_year_sharpe: metricLabels.two_year_sharpe,
  prod_correlation: metricLabels.prod_correlation,
  pnl: metricLabels.pnl,
  language: "语言",
  created: "创建时间",
  submitted: "提交时间",
  correlation: "本地自相关",
};

export function AlphaPage({
  managementScope = "non_super",
  account,
  taskPanelOpen,
  version,
  onTask,
  onAccount,
  active,
  overlaySuspended,
  chatOffset,
  onContext,
  action,
  onOverlay,
  onAction,
}: {
  managementScope?: "super" | "non_super";
  account: Account | null;
  taskPanelOpen: boolean;
  version: string;
  onTask: () => void;
  onAccount: () => void;
  active: boolean;
  overlaySuspended: boolean;
  chatOffset: number;
  onContext: (context: PageContext) => void;
  action: UIAction | null;
  onOverlay: () => void;
  onAction: (action: WorkspaceAction) => void;
}) {
  const columnKey =
    managementScope === "super" ? "superalpha-columns" : "alpha-columns";
  const defaultColumns =
    managementScope === "super"
      ? initialColumns.flatMap((c) =>
          c === "expression" ? ["selection", "combo", "component_count"] : [c],
        )
      : initialColumns;
  const menuColumns = Object.fromEntries(
    Object.entries(columnLabels).filter(([k]) =>
      managementScope === "super"
        ? k !== "expression"
        : !["selection", "combo", "component_count"].includes(k),
    ),
  );
  const [data, setData] = useState<Page>({
    items: [],
    total: 0,
    limit: 25,
    offset: 0,
  });
  const [facets, setFacets] = useState<Facets>({});
  const [draft, setDraft] = useState<Record<string, string>>({});
  const [filters, setFilters] = useState<Record<string, string>>({});
  const [filterOpen, setFilterOpen] = useState(false);
  const [selectedViewId, setSelectedViewId] = useState<string | null>(null);
  const [submissionBlocked, setSubmissionBlocked] = useState(false);
  const [submission, setSubmission] = useState<Submission>("UNSUBMITTED");
  const [syncingScope, setSyncingScope] = useState<Submission | null>(null);
  const [page, setPage] = useState(1);
  const [pageSize, setPageSize] = useState(25);
  const [sort, setSort] = useState("date_created");
  const [direction, setDirection] = useState("desc");
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState("");
  const [selected, setSelected] = useState<string[]>([]);
  const [visibleColumns, setVisibleColumns] = useState<string[]>(() => {
    try {
      const stored: unknown = JSON.parse(
        localStorage.getItem(columnKey) || "null",
      );
      return Array.isArray(stored)
        ? [
            ...new Set([
              "name",
              ...stored.filter(
                (v): v is string => typeof v === "string" && v in columnLabels,
              ),
            ]),
          ]
        : defaultColumns;
    } catch {
      return defaultColumns;
    }
  });
  const [detailId, setDetailId] = useState<string | null>(null);
  const [importing, setImporting] = useState(false);
  const [idText, setIdText] = useState("");
  const [busy, setBusy] = useState("");
  const [bulkOpen, setBulkOpen] = useState(false);
  const [tagEditor, setTagEditor] = useState<{
    id: string;
    version: number;
    text: string;
  } | null>(null);
  const selectionVersions = useRef<Record<string, number>>({});
  const [bulkVersions, setBulkVersions] = useState<Record<string, number>>({});
  const actionNonce = useRef(0);
  const [bulk, setBulk] = useState({
    add_tags: "",
    remove_tags: "",
    state: "",
  });
  const [localVersion, setLocalVersion] = useState(0);
  const tablePanel = useRef<HTMLElement>(null);
  const [compact, setCompact] = useState(
    () => matchMedia("(max-width: 760px)").matches,
  );
  useEffect(() => {
    const media = matchMedia("(max-width: 760px)");
    const change = () => setCompact(media.matches);
    media.addEventListener("change", change);
    return () => media.removeEventListener("change", change);
  }, []);
  useEffect(() => {
    if (account) {
      setPageSize(account.page_size);
      setPage(1);
    }
  }, [account?.page_size]);
  const params = useMemo(
    () => ({
      ...filters,
      management_scope: managementScope,
      submission,
      submission_blocked: submissionBlocked || undefined,
      sort,
      direction,
      limit: pageSize,
      offset: (page - 1) * pageSize,
    }),
    [
      filters,
      submission,
      submissionBlocked,
      sort,
      direction,
      pageSize,
      page,
      managementScope,
    ],
  );
  const query = queryString(params);
  useEffect(() => {
    if (!active) return;
    onContext({
      page: managementScope === "super" ? "superalphas" : "alphas",
      alpha_id: detailId,
      selected_ids: selected.slice(0, 100),
      filters: Object.fromEntries(
        Object.entries(params).filter(
          ([, value]) => value !== "" && value !== undefined && value !== null,
        ),
      ),
    });
  }, [active, detailId, selected, params, onContext]);
  useEffect(() => {
    if (!active || !action || actionNonce.current === action.nonce) return;
    actionNonce.current = action.nonce;
    if (action.type === "open_alpha") {
      setDetailId(action.alpha_id);
      onOverlay();
    } else {
      setSelectedViewId(null);
      setFilterOpen(false);
      const {
        sort: nextSort,
        direction: nextDirection,
        limit: _limit,
        offset: _offset,
        submission: nextSubmission,
        submission_blocked: nextBlocked,
        ...values
      } = action.filters;
      const next = Object.fromEntries(
        Object.entries(values)
          .filter(([, v]) => v !== null && v !== undefined)
          .map(([k, v]) => [k, String(v)]),
      );
      setDraft(next);
      setFilters(next);
      setPage(1);
      setSelected([]);
      if (nextSubmission === "SUBMITTED" || nextSubmission === "UNSUBMITTED")
        setSubmission(nextSubmission);
      setSubmissionBlocked(nextBlocked === true || nextBlocked === "true");
      if (nextSort) setSort(String(nextSort));
      if (nextDirection) setDirection(String(nextDirection));
    }
  }, [action, onOverlay, active]);
  const refresh = useCallback(() => setLocalVersion((n) => n + 1), []);
  useEffect(() => {
    if (!active) return;
    const controller = new AbortController();
    setLoading(true);
    setError("");
    Promise.all([
      api<Page>(`/alphas?${query}`, { signal: controller.signal }),
      api<Facets>(`/alphas/facets?management_scope=${managementScope}`, {
        signal: controller.signal,
      }),
    ])
      .then(([results, nextFacets]) => {
        if (!controller.signal.aborted) {
          setData(results);
          setFacets(nextFacets);
        }
      })
      .catch((e) => {
        if (!controller.signal.aborted) setError(e.message);
      })
      .finally(() => {
        if (!controller.signal.aborted) setLoading(false);
      });
    return () => controller.abort();
  }, [active, query, version, localVersion]);
  useEffect(() => {
    setSelected([]);
    selectionVersions.current = {};
  }, [filters, submission, submissionBlocked, managementScope]);
  useEffect(() => {
    tablePanel.current?.querySelector(".semi-table-body")?.scrollTo({ top: 0 });
  }, [query]);
  function updateDraft(key: string, value: unknown) {
    setDraft((previous) => ({
      ...previous,
      [key]: value === undefined || value === null ? "" : String(value),
    }));
  }
  function applyFilters() {
    setFilterOpen(false);
    setFilters({ ...draft });
    setPage(1);
  }
  function clearFilters() {
    setFilterOpen(false);
    setDraft({});
    setFilters({});
    setPage(1);
  }
  function changeSubmission(value: string) {
    setSelectedViewId(null);
    setFilterOpen(false);
    setDirection("desc");
    setSubmission(value === "SUBMITTED" ? "SUBMITTED" : "UNSUBMITTED");
    setSubmissionBlocked(value === "SUBMISSION_BLOCKED");
    setDraft({});
    setFilters({});
    setPage(1);
    setSelected([]);
    setSort(value === "SUBMITTED" ? "date_submitted" : "date_created");
  }
  async function newTask(kind: string, ids: string[] = []) {
    setBusy(kind);
    try {
      const job = await post<Job>("/sync-jobs", {
        kind,
        alpha_ids: ids,
        ...(kind === "full_sync" ? { submission: "SUBMITTED" } : {}),
      });
      setImporting(false);
      setIdText("");
      if (kind === "pnl_backfill" && job.total === 0)
        Toast.success("已提交 Alpha 的 PnL 已齐全，无需补取");
      if (kind === "self_correlation_recheck" && job.total === 0)
        Toast.success("没有预检通过或检查通过的 Alpha，无需重检");
      onTask();
    } catch (e) {
      Toast.error((e as Error).message);
    } finally {
      setBusy("");
    }
  }
  async function bulkSave() {
    setBusy("bulk");
    const split = (value: string) =>
      value
        .split(/[,，]/)
        .map((t) => t.trim())
        .filter(Boolean);
    try {
      await patch("/alphas/research/bulk", {
        alpha_ids: Object.keys(bulkVersions),
        versions: bulkVersions,
        add_tags: split(bulk.add_tags),
        remove_tags: split(bulk.remove_tags),
        state: bulk.state || null,
      });
      setBulkOpen(false);
      setBulk({ add_tags: "", remove_tags: "", state: "" });
      refresh();
      Toast.success("批量研究记录已更新");
    } catch (e) {
      Toast.error((e as Error).message);
    } finally {
      setBusy("");
    }
  }
  async function saveTags() {
    if (!tagEditor) return;
    setBusy("tags");
    try {
      await patch(`/alphas/${tagEditor.id}/research`, {
        version: tagEditor.version,
        tags: tagEditor.text
          .split(/[,，]/)
          .map((tag) => tag.trim())
          .filter(Boolean),
      });
      setTagEditor(null);
      refresh();
      Toast.success("自定义标签已保存");
    } catch (e) {
      Toast.error((e as Error).message);
    } finally {
      setBusy("");
    }
  }
  const columnDefinitions: ColumnProps<Alpha>[] = [
    {
      key: "name",
      title: "Alpha",
      dataIndex: "name",
      fixed: "left",
      width: 190,
      render: (_, row) => (
        <button
          className="alpha-link"
          title={`${row!.id} · ${row!.alpha_type ?? ""}`}
          onClick={() => {
            setDetailId(row!.id);
            onOverlay();
          }}
        >
          <span>
            {row!.research.favorite && <Tag size="small">收藏</Tag>}
            {row!.name || row!.id}
          </span>
          {row!.name && <small className="muted">{row!.id}</small>}
        </button>
      ),
    },
    {
      key: "expression",
      title: "表达式",
      width: 260,
      render: (_, row) => (
        <code className="expression-cell" title={row!.expression_preview}>
          {row!.expression_preview || "—"}
        </code>
      ),
    },
    ...(["selection", "combo"] as const).map(
      (key): ColumnProps<Alpha> => ({
        key,
        title: columnLabels[key],
        width: 260,
        render: (_, row) => (
          <code title={row![`${key}_preview`]}>
            {row![`${key}_preview`] || "未提供"}
          </code>
        ),
      }),
    ),
    {
      key: "component_count",
      title: "组件数（已核实）",
      width: 140,
      render: (_, row) => row!.component_count ?? "未核实",
    },
    {
      key: "source",
      title: "研究来源",
      width: 150,
      render: (_, row) =>
        row!.source_kinds?.map(sourceLabel).join("、") || "暂无本地来源",
    },
    {
      key: "region",
      title: "地区 / Universe",
      width: 155,
      render: (_, row) => (
        <div className="stacked-cell">
          <span>{row!.region ?? "—"}</span>
          <span className="muted"> / {row!.universe ?? "—"}</span>
        </div>
      ),
    },
    {
      key: "status",
      title: "平台状态",
      width: 150,
      render: (_, row) => (
        <div className="stacked-cell">
          <span>{row!.status ?? "未提供"}</span>
          <span className="muted">
            {" "}
            · {row!.stage ?? "—"}
            {row!.hidden ? " · 隐藏" : ""}
          </span>
        </div>
      ),
    },
    ...Object.entries(metricLabels).map(
      ([key, title]): ColumnProps<Alpha> => ({
        key,
        title,
        width:
          key in
          {
            sub_universe_sharpe: 1,
            robust_universe_sharpe: 1,
            two_year_sharpe: 1,
            prod_correlation: 1,
          }
            ? 155
            : 112,
        align: "right",
        render: (_, row) => (
          <span
            className="numeric"
            style={{ color: metricColor(key, row![key as keyof Alpha]) }}
          >
            {formatMetric(key, row![key as keyof Alpha])}
          </span>
        ),
      }),
    ),
    {
      key: "check_type",
      title: "检查结果",
      width: 125,
      render: (_, row) => (
        <Tag
          color={
            row!.check_type?.startsWith("FAIL")
              ? "red"
              : row!.check_type === "PASS"
                ? "green"
                : row!.check_type === "PRE_CHECK"
                  ? "blue"
                  : "grey"
          }
        >
          {checkLabels[row!.check_type] || "待检查"}
        </Tag>
      ),
    },
    {
      key: "failed_checks",
      title: "失败项",
      width: 230,
      render: (_, row) => (
        <Typography.Text
          className="alpha-failed-checks"
          size="inherit"
          style={{ width: "100%" }}
          ellipsis={{
            showTooltip: {
              opts: {
                content: row!.failed_checks?.join("\n"),
                style: {
                  whiteSpace: "pre-line",
                  overflowWrap: "anywhere",
                  maxWidth: 420,
                },
              },
            },
          }}
        >
          {row!.failed_checks?.join("、") || "—"}
        </Typography.Text>
      ),
    },
    {
      key: "neutralization",
      title: "中性化",
      width: 155,
      render: (_, row) => row!.neutralization || "—",
    },
    {
      key: "research",
      fixed: "right",
      title: "研究状态",
      width: 115,
      render: (_, row) => (
        <Tag
          color={
            row!.research.state === "candidate"
              ? "green"
              : row!.research.state === "optimizing"
                ? "blue"
                : "grey"
          }
        >
          {stateLabels[row!.research.state]}
        </Tag>
      ),
    },
    {
      key: "tags",
      title: "自定义标签",
      width: 180,
      render: (_, row) => (
        <div className="inline-tags">
          {row!.research.tags.map((t) => (
            <Tag key={t}>{t}</Tag>
          ))}
          <button
            className="text-link"
            aria-label={`编辑 ${row!.id} 的标签`}
            onClick={() => {
              setTagEditor({
                id: row!.id,
                version: row!.research.version,
                text: row!.research.tags.join(", "),
              });
              onOverlay();
            }}
          >
            编辑标签
          </button>
        </div>
      ),
    },
    { key: "language", title: "语言", width: 125, dataIndex: "language" },
    {
      key: "correlation",
      title: "本地自相关",
      width: 160,
      render: (_, row) => {
        const value = row!.local_correlation;
        return value ? (
          <span
            title={`计算于 ${formatTime(value.calculated_at, account?.timezone)}`}
            style={{
              color:
                value.stale ||
                value.max_correlation === null ||
                !Number.isFinite(value.max_correlation)
                  ? "var(--semi-color-text-2)"
                  : value.max_correlation > 0.75
                    ? "var(--semi-color-danger)"
                    : value.max_correlation >= 0.7
                      ? "rgb(var(--semi-yellow-7))"
                      : "var(--semi-color-success)",
            }}
          >
            {value.stale ? "待重算" : correlationLabels[value.status]}
            {value.max_correlation !== null &&
              ` · ${formatNumber(value.max_correlation, 3)}`}
          </span>
        ) : (
          <span className="muted">未检测</span>
        );
      },
    },
    {
      key: "synced",
      title: "同步时间",
      width: 165,
      render: (_, row) => formatTime(row!.synced_at, account?.timezone),
    },
    {
      key: "submitted",
      title: "提交时间",
      width: 165,
      render: (_, row) => formatTime(row!.date_submitted, account?.timezone),
    },
    {
      key: "created",
      title: "创建时间",
      width: 165,
      render: (_, row) => formatTime(row!.date_created, account?.timezone),
    },
  ];
  // Submitted alphas always expose the platform production correlation, including saved views.
  const displayedColumns =
    submission === "SUBMITTED"
      ? [...new Set([...visibleColumns, "prod_correlation"])]
      : visibleColumns;
  const columns = columnDefinitions
    .filter((column) => displayedColumns.includes(String(column.key)))
    .map((column) => (compact ? { ...column, fixed: undefined } : column));
  const activeFilterCount = Object.values(filters).filter(Boolean).length;
  const options = (key: string) =>
    (Array.isArray(facets[key]) ? (facets[key] as string[]) : []).map(
      (value) => ({ value, label: value }),
    );
  const connected =
    account?.connection_status === "connected" ||
    account?.connection_status === "expired";
  const filterPanel = (
    <form
      className="alpha-filter-panel"
      aria-label="Alpha 筛选条件"
      onSubmit={(e) => {
        e.preventDefault();
        applyFilters();
      }}
    >
      <header className="alpha-filter-header">
        <div>
          <h2>筛选 Alpha</h2>
          <p className="muted">设置搜索和筛选条件，查询后应用到当前视图。</p>
        </div>
        <Button
          icon={<IconClose aria-hidden="true" />}
          theme="borderless"
          type="tertiary"
          aria-label="关闭筛选"
          onClick={() => setFilterOpen(false)}
        />
      </header>
      <div className="alpha-filter-body">
        <div className="alpha-filter-fields">
          <label className="alpha-filter-search">
            搜索
            <Input
              prefix={<IconSearch aria-hidden="true" />}
              aria-label="搜索 Alpha"
              placeholder="搜索 ID、名称或表达式"
              value={draft.q ?? ""}
              onChange={(v) => updateDraft("q", v)}
              showClear
            />
          </label>
          <label>
            地区
            <Select
              aria-label="地区"
              placeholder="全部地区"
              showClear
              value={draft.region || undefined}
              optionList={options("region")}
              onChange={(v) => updateDraft("region", v)}
            />
          </label>
          <label>
            平台状态
            <Select
              aria-label="平台状态"
              placeholder="全部平台状态"
              showClear
              value={draft.status || undefined}
              optionList={options("status")}
              onChange={(v) => updateDraft("status", v)}
            />
          </label>
          <label>
            研究状态
            <Select
              aria-label="研究状态筛选"
              placeholder="全部研究状态"
              showClear
              value={draft.research_state || undefined}
              optionList={stateOptions}
              onChange={(v) => updateDraft("research_state", v)}
            />
          </label>
          <label>
            检查结果
            <Select
              aria-label="检查结果筛选"
              placeholder="全部检查结果"
              showClear
              value={draft.check_type || undefined}
              optionList={Object.entries(checkLabels).map(([value, label]) => ({
                value,
                label,
              }))}
              onChange={(v) => updateDraft("check_type", v)}
            />
          </label>
          <label>
            本地自相关状态
            <Select
              aria-label="本地自相关状态"
              placeholder="全部状态"
              showClear
              value={draft.local_correlation_status || undefined}
              optionList={[
                { value: "not_cached", label: "未检测" },
                { value: "stale", label: "待重算" },
                ...Object.entries(correlationLabels).map(([value, label]) => ({
                  value,
                  label,
                })),
              ]}
              onChange={(v) => updateDraft("local_correlation_status", v)}
            />
          </label>
          <label>
            自定义标签
            <Select
              aria-label="自定义标签筛选"
              showClear
              filter
              value={draft.tag || undefined}
              optionList={options("tags")}
              placeholder="全部标签"
              onChange={(v) => updateDraft("tag", v)}
            />
          </label>
        </div>
        <details className="advanced-filters">
          <summary>更多筛选</summary>
          <div className="alpha-filter-fields">
            <label>
              研究来源
              <Select
                aria-label="研究来源筛选"
                showClear
                value={draft.source || undefined}
                optionList={options("source").map((option) => ({
                  ...option,
                  label: sourceLabel(option.value),
                }))}
                placeholder="全部来源"
                onChange={(v) => updateDraft("source", v)}
              />
            </label>
            <label>
              研究编号
              <Input
                aria-label="研究编号筛选"
                value={draft.research_id || ""}
                onChange={(v) => updateDraft("research_id", v)}
              />
            </label>
            {[
              ["universe", "Universe"],
              ["alpha_type", "Alpha 类型"],
              ["language", "语言"],
              ["stage", "IS / OS"],
            ].map(([key, label]) => (
              <label key={key}>
                {label}
                <Select
                  showClear
                  aria-label={label}
                  value={draft[key] || undefined}
                  optionList={options(key)}
                  placeholder="全部"
                  onChange={(v) => updateDraft(key, v)}
                />
              </label>
            ))}
            <label>
              平台隐藏状态
              <Select
                showClear
                value={draft.hidden || undefined}
                optionList={[
                  { value: "false", label: "可见" },
                  { value: "true", label: "隐藏" },
                ]}
                placeholder="全部"
                onChange={(v) => updateDraft("hidden", v)}
              />
            </label>
            <label>
              中性化
              <Input
                aria-label="中性化筛选"
                value={draft.neutralization || ""}
                placeholder="例如 INDUSTRY"
                onChange={(v) => updateDraft("neutralization", v)}
              />
            </label>
            <label>
              创建时间起（UTC）
              <Input
                type="date"
                value={draft.created_from?.slice(0, 10) || ""}
                onChange={(v) =>
                  updateDraft("created_from", v ? `${v}T00:00:00Z` : "")
                }
              />
            </label>
            <label>
              创建时间止（UTC）
              <Input
                type="date"
                value={draft.created_to?.slice(0, 10) || ""}
                onChange={(v) =>
                  updateDraft("created_to", v ? `${v}T23:59:59.999999Z` : "")
                }
              />
            </label>
            {Object.entries({
              ...metricLabels,
              local_correlation: "本地自相关",
            }).map(([key, label]) => (
              <label key={key}>
                {label}
                <div className="range-inputs">
                  <Input
                    type="number"
                    aria-label={`${label} 最小值`}
                    placeholder="最小值"
                    value={draft[`${key}_min`] || ""}
                    onChange={(v) => updateDraft(`${key}_min`, v)}
                  />
                  <span>—</span>
                  <Input
                    type="number"
                    aria-label={`${label} 最大值`}
                    placeholder="最大值"
                    value={draft[`${key}_max`] || ""}
                    onChange={(v) => updateDraft(`${key}_max`, v)}
                  />
                </div>
              </label>
            ))}
            <Checkbox
              checked={draft.favorite === "true"}
              onChange={(e) =>
                updateDraft("favorite", e.target.checked ? "true" : "")
              }
            >
              只看收藏
            </Checkbox>
          </div>
          <p className="muted">
            本地自相关范围为 -1～1，按缓存数值筛选，可搭配状态排除待重算记录。
            数值筛选使用平台原始值，例如 Turnover 0.15 表示 15%。
            检查结果仅汇总已同步的平台检查；预检通过不代表可以提交，活动资格可用自定义标签记录。
          </p>
        </details>
      </div>
      <footer className="alpha-filter-footer">
        <Button type="tertiary" theme="borderless" onClick={clearFilters}>
          重置
        </Button>
        <Button htmlType="submit" theme="solid">
          查询
        </Button>
      </footer>
    </form>
  );
  return (
    <>
      {!connected && (
        <Banner
          type="info"
          description={
            <span>
              连接 WorldQuant 后即可同步平台数据。
              <button className="text-link" onClick={onAccount}>
                前往个人信息
              </button>
            </span>
          }
        />
      )}
      {error && <Banner type="danger" description={error} />}
      <section className="library-panel" ref={tablePanel}>
        <SavedViews
          managementScope={managementScope}
          submission={submission}
          submissionBlocked={submissionBlocked}
          selectedId={selectedViewId}
          onSelect={setSelectedViewId}
          onSubmissionChange={changeSubmission}
          suspended={overlaySuspended || !active}
          onOverlay={onOverlay}
          filters={{
            ...filters,
            submission,
            submission_blocked: submissionBlocked || undefined,
            sort,
            direction,
            limit: pageSize,
          }}
          columns={displayedColumns}
          onRestore={(view) => {
            setFilterOpen(false);
            const {
              submission: savedSubmission,
              submission_blocked: savedBlocked,
              sort: savedSort,
              direction: savedDirection,
              limit,
              offset: _offset,
              ...rest
            } = view.filters;
            const values = Object.fromEntries(
              Object.entries(rest)
                .filter(([, v]) => v !== null && v !== undefined)
                .map(([k, v]) => [k, String(v)]),
            );
            setFilters(values);
            setDraft(values);
            setPage(1);
            setSelected([]);
            setSubmission(
              savedSubmission === "SUBMITTED" ? "SUBMITTED" : "UNSUBMITTED",
            );
            setSubmissionBlocked(
              savedBlocked === true || savedBlocked === "true",
            );
            setSort(String(savedSort || "date_created"));
            setDirection(String(savedDirection || "desc"));
            if (typeof limit === "number") setPageSize(limit);
            const next = [
              ...new Set([
                "name",
                ...view.columns.filter((c) => c in columnLabels),
              ]),
            ];
            setVisibleColumns(next);
            localStorage.setItem(columnKey, JSON.stringify(next));
          }}
        />
        <div
          className="table-toolbar alpha-toolbar"
          aria-label="Alpha 表格工具栏"
        >
          <div className="inline-actions alpha-view-tools">
            <Button
              icon={<IconRefresh aria-hidden="true" />}
              theme="borderless"
              type="tertiary"
              aria-label="刷新 Alpha 列表"
              title="按当前条件刷新列表"
              loading={loading}
              disabled={loading}
              onClick={refresh}
            />
            <Popover
              trigger="custom"
              position="bottomLeft"
              visible={filterOpen && active && !overlaySuspended}
              onClickOutSide={() => setFilterOpen(false)}
              onEscKeyDown={() => setFilterOpen(false)}
              content={filterPanel}
            >
              <Button
                icon={<IconFilter aria-hidden="true" />}
                type={filterOpen || activeFilterCount ? "primary" : "tertiary"}
                theme={filterOpen || activeFilterCount ? "light" : "borderless"}
                aria-label="筛选 Alpha"
                onClick={() => {
                  setFilterOpen((open) => !open);
                  onOverlay();
                }}
              >
                筛选
                {activeFilterCount > 0 && (
                  <span className="alpha-filter-count">
                    {activeFilterCount}
                  </span>
                )}
              </Button>
            </Popover>
            <Popover
              trigger="click"
              position="bottomRight"
              content={
                <div className="columns-picker">
                  <strong>显示列</strong>
                  <CheckboxGroup
                    direction="vertical"
                    value={displayedColumns}
                    options={Object.entries(menuColumns).map(
                      ([value, label]) => ({
                        value,
                        label,
                        disabled:
                          value === "name" ||
                          (submission === "SUBMITTED" &&
                            value === "prod_correlation"),
                      }),
                    )}
                    onChange={(values) => {
                      const next = values.map(String);
                      setVisibleColumns(next);
                      localStorage.setItem(columnKey, JSON.stringify(next));
                    }}
                  />
                </div>
              }
            >
              <Button
                icon={<IconSetting aria-hidden="true" />}
                theme="borderless"
                type="tertiary"
                aria-label="显示列设置"
              >
                列设置
              </Button>
            </Popover>
            <Popover
              trigger="click"
              position="bottomLeft"
              content={
                <div className="alpha-sort-panel">
                  <h2>排序</h2>
                  <Select
                    aria-label="排序字段"
                    size="small"
                    value={sort}
                    optionList={[
                      { value: "date_created", label: "创建时间" },
                      { value: "date_submitted", label: "提交时间" },
                      { value: "synced_at", label: "同步时间" },
                      ...Object.entries(metricLabels).map(([value, label]) => ({
                        value,
                        label,
                      })),
                      { value: "name", label: "名称" },
                    ]}
                    onChange={(v) => {
                      setSort(String(v));
                      setPage(1);
                    }}
                  />
                  <Select
                    aria-label="排序方向"
                    size="small"
                    value={direction}
                    optionList={[
                      { value: "desc", label: "降序" },
                      { value: "asc", label: "升序" },
                    ]}
                    onChange={(v) => {
                      setDirection(String(v));
                      setPage(1);
                    }}
                  />
                </div>
              }
            >
              <Button
                icon={<IconSort aria-hidden="true" />}
                theme="borderless"
                type="tertiary"
                aria-label="排序设置"
              >
                排序
              </Button>
            </Popover>
          </div>
          <div className="inline-actions alpha-table-actions">
            <a href={`/api/v1/alphas/export?${query}`}>
              <Button
                icon={<IconDownload aria-hidden="true" />}
                theme="borderless"
                type="tertiary"
              >
                导出
              </Button>
            </a>
            <Button
              icon={<IconUpload aria-hidden="true" />}
              theme="borderless"
              type="tertiary"
              onClick={() => {
                setImporting(true);
                onOverlay();
              }}
            >
              导入 Alpha ID
            </Button>
            <Button
              icon={<IconRefresh aria-hidden="true" />}
              loading={busy === "self_correlation_recheck"}
              disabled={Boolean(busy)}
              title="重新计算全部预检通过和检查通过的 Alpha 本地自相关，不受筛选和分页影响"
              onClick={() => void newTask("self_correlation_recheck")}
            >
              重检自相关
            </Button>
            <Button
              icon={<IconRefresh aria-hidden="true" />}
              theme="solid"
              disabled={!connected}
              onClick={() => {
                setSyncingScope(submission);
                onOverlay();
              }}
            >
              按天同步
            </Button>
            {submission === "SUBMITTED" && (
              <Button
                size="small"
                loading={busy === "pnl_backfill"}
                disabled={!connected || Boolean(busy)}
                title="补取全部本地已提交 Alpha 缺失的 PnL，不受筛选和分页影响"
                onClick={() => void newTask("pnl_backfill")}
              >
                检查pnl
              </Button>
            )}
            {submission === "SUBMITTED" && (
              <Button
                size="small"
                loading={busy === "full_sync"}
                disabled={!connected}
                onClick={() => void newTask("full_sync")}
              >
                全量同步已提交
              </Button>
            )}
          </div>
        </div>
        {selected.length > 0 && (
          <div className="alpha-selection-actions inline-actions">
            <span className="selection-text">已选择 {selected.length} 条</span>
            <Button
              type="tertiary"
              size="small"
              loading={busy === "self_correlation"}
              onClick={() => void newTask("self_correlation", selected)}
            >
              检测自相关
            </Button>
            <Button
              type="tertiary"
              size="small"
              onClick={() => {
                setBulkVersions(
                  Object.fromEntries(
                    selected.map((id) => [id, selectionVersions.current[id]]),
                  ),
                );
                setBulkOpen(true);
                onOverlay();
              }}
            >
              批量编辑
            </Button>
            <Button
              type="tertiary"
              size="small"
              disabled={!connected}
              loading={busy === "alpha_refresh"}
              onClick={() => void newTask("alpha_refresh", selected)}
            >
              刷新选中
            </Button>

            <Button
              size="small"
              theme="borderless"
              type="tertiary"
              onClick={() => setSelected([])}
            >
              取消选择
            </Button>
          </div>
        )}
        <WorkspaceTable<Alpha>
          fill
          columns={columns}
          dataSource={data.items}
          rowKey="id"
          loading={loading}
          className="alpha-table"
          size="small"
          scroll={{
            y: "100%",
            x: columns.reduce((sum, c) => sum + Number(c.width || 120), 0) + 60,
          }}
          rowSelection={{
            selectedRowKeys: selected,
            onChange: (keys) => {
              const pageIds = new Set(data.items.map((r) => r.id));
              const nextIds = (keys ?? [])
                .map(String)
                .filter((id) => pageIds.has(id));
              for (const row of data.items)
                if (nextIds.includes(row.id))
                  selectionVersions.current[row.id] = row.research.version;
              setSelected((old) => [
                ...old.filter((id) => !pageIds.has(id)),
                ...nextIds,
              ]);
            },
            fixed: !compact,
          }}
          pagination={false}
          empty={
            <Empty
              className="alpha-empty"
              title={
                activeFilterCount
                  ? "没有符合条件的 Alpha"
                  : "从第一个 Alpha 开始"
              }
              description={
                activeFilterCount
                  ? "调整筛选条件，探索更多信号。"
                  : "连接 WorldQuant 并同步数据，或通过 Alpha ID 导入已有研究。"
              }
            />
          }
        />
        <footer className="table-pagination" aria-label="Alpha 分页">
          <div className="alpha-table-meta">
            <span className="muted">
              {submissionBlocked
                ? "提交受阻"
                : submission === "UNSUBMITTED"
                  ? "待提交"
                  : "已提交"}{" "}
              Alpha{" "}
              <span className="count-pill">{data.total.toLocaleString()}</span>{" "}
              条
            </span>
            <span className="alpha-last-sync">
              最近数据更新{" "}
              <span>
                {formatTime(
                  typeof facets.last_sync === "string"
                    ? facets.last_sync
                    : null,
                  account?.timezone,
                )}
              </span>
            </span>
          </div>
          <Pagination
            size={compact ? "small" : "default"}
            currentPage={page}
            pageSize={pageSize}
            total={data.total}
            showSizeChanger
            pageSizeOpts={[25, 50, 100]}
            preventPageChangeOnPageSizeChange
            onPageChange={setPage}
            onPageSizeChange={(size) => {
              setPageSize(size);
              setPage(1);
            }}
          />
        </footer>
      </section>
      <Modal
        title={`编辑自定义标签 · ${tagEditor?.id || ""}`}
        visible={Boolean(tagEditor) && !overlaySuspended}
        onCancel={() => setTagEditor(null)}
        confirmLoading={busy === "tags"}
        okText="保存标签"
        onOk={() => void saveTags()}
      >
        <p>
          用逗号分隔多个标签，例如
          PPAC、待活动提交。标签保存在本地，平台同步不会覆盖。
        </p>
        <Input
          aria-label="自定义标签"
          value={tagEditor?.text || ""}
          placeholder="例如 PPAC, 待活动提交"
          onChange={(text) =>
            setTagEditor((current) =>
              current ? { ...current, text } : current,
            )
          }
        />
      </Modal>
      <Modal
        title="导入 Alpha ID"
        visible={importing && !overlaySuspended}
        onCancel={() => setImporting(false)}
        confirmLoading={busy === "alpha_refresh"}
        okText="开始导入"
        onOk={() => {
          const ids = [...new Set(idText.split(/[\s,，]+/).filter(Boolean))];
          if (!ids.length || ids.length > 100) {
            Toast.warning("每次请输入 1–100 个 Alpha ID");
            return;
          }
          void newTask("alpha_refresh", ids);
        }}
      >
        <p>
          读取指定 Alpha 的平台详情。每次最多 100 个，使用空格、逗号或换行分隔。
        </p>
        <TextArea
          aria-label="Alpha IDs"
          value={idText}
          onChange={setIdText}
          rows={6}
          placeholder="例如：aB12cD34"
        />
      </Modal>
      <Modal
        title={`批量编辑 ${Object.keys(bulkVersions).length} 条研究记录`}
        visible={bulkOpen && !overlaySuspended}
        onCancel={() => setBulkOpen(false)}
        confirmLoading={busy === "bulk"}
        onOk={() => void bulkSave()}
        okText="保存修改"
      >
        <label>
          添加标签
          <Input
            aria-label="批量添加标签"
            placeholder="用逗号分隔，例如 PPAC, 待活动提交"
            value={bulk.add_tags}
            onChange={(add_tags) => setBulk({ ...bulk, add_tags })}
          />
        </label>
        <label>
          移除标签
          <Input
            aria-label="批量移除标签"
            value={bulk.remove_tags}
            onChange={(remove_tags) => setBulk({ ...bulk, remove_tags })}
          />
        </label>
        <label>
          研究状态
          <Select
            showClear
            placeholder="保持现有状态"
            value={bulk.state || undefined}
            optionList={stateOptions}
            onChange={(state) =>
              setBulk({ ...bulk, state: state ? String(state) : "" })
            }
          />
        </label>
      </Modal>
      {syncingScope && (
        <AlphaSyncDialog
          submission={syncingScope}
          suspended={overlaySuspended}
          onClose={() => setSyncingScope(null)}
          onTask={onTask}
        />
      )}
      <AlphaDetail
        onAction={onAction}
        suspended={overlaySuspended}
        chatOffset={chatOffset}
        taskPanelOpen={taskPanelOpen}
        id={detailId}
        version={`${version}:${localVersion}`}
        timezone={account?.timezone}
        onClose={() => setDetailId(null)}
        onSaved={refresh}
        onTask={onTask}
      />
    </>
  );
}