import { useEffect, useState } from "react";
import { Toast } from "@douyinfe/semi-ui-19";
import { api, formatNumber, formatTime, stateLabels } from "../api";
import { PnlChart } from "../components/PnlChart";
import type { Alpha, Pnl, Research } from "../types";
import type { ToolCardProps } from "./types";

export function AlphaToolCard({ call, onAction, timezone }: ToolCardProps) {
  const result = call.result ?? {};
  const items = Array.isArray(result.items) ? result.items : [];
  const isSearch = call.name === "search_alphas";
  const alphas = (
    isSearch ? items : call.name === "get_alpha" && result.id ? [result] : []
  ) as Alpha[];
  const openAlpha = (id: string) =>
    onAction({ type: "open_alpha", alpha_id: id, nonce: Date.now() });
  return (
    <>
      {call.preview.targets?.map((target) => (
        <details
          key={target.alpha_id}
          open={call.preview.targets!.length === 1}
        >
          <summary>{target.alpha_id} 的修改</summary>
          {(["note", "tags", "favorite", "state"] as const)
            .filter(
              (key) =>
                JSON.stringify(target.before[key]) !==
                JSON.stringify(target.after[key]),
            )
            .map((key) => (
              <div className="ai-diff" key={key}>
                <strong>
                  {
                    {
                      note: "备注",
                      tags: "标签",
                      favorite: "收藏",
                      state: "研究状态",
                    }[key]
                  }
                </strong>
                <del>
                  <span>修改前</span>
                  {researchValue(key, target.before[key])}
                </del>
                <ins>
                  <span>修改后</span>
                  {researchValue(key, target.after[key])}
                </ins>
              </div>
            ))}
        </details>
      ))}
      {alphas.length > 0 && (
        <div className="ai-alpha-results">
          {alphas.map((alpha) => (
            <div key={alpha.id}>
              <button className="text-link" onClick={() => openAlpha(alpha.id)}>
                {alpha.name || alpha.id}
              </button>
              <small>
                {alpha.id} · {alpha.region ?? "地区未提供"}
              </small>
              <table>
                <thead>
                  <tr>
                    <th>Sharpe</th>
                    <th>Fitness</th>
                    <th>Turnover</th>
                  </tr>
                </thead>
                <tbody>
                  <tr>
                    <td>{formatNumber(alpha.sharpe)}</td>
                    <td>{formatNumber(alpha.fitness)}</td>
                    <td>
                      {alpha.turnover == null
                        ? "未提供"
                        : `${formatNumber(alpha.turnover * 100)}%`}
                    </td>
                  </tr>
                </tbody>
              </table>
              <small>本地快照 · {formatTime(alpha.synced_at, timezone)}</small>
            </div>
          ))}
        </div>
      )}
      {isSearch && (
        <p>
          共 {String(result.total ?? 0)} 条，当前返回 {items.length} 条。
          {!!result.filters && (
            <button
              className="text-link"
              onClick={() =>
                onAction({
                  type: "apply_filters",
                  filters: result.filters as Record<string, unknown>,
                  nonce: Date.now(),
                })
              }
            >
              应用到列表
            </button>
          )}
        </p>
      )}
      {call.name === "get_alpha_facets" && call.status === "completed" && (
        <p>
          已同步 {String(result.total ?? 0)} 条 Alpha · 收藏{" "}
          {String(result.favorites ?? 0)} 条<br />
          地区：
          {Array.isArray(result.region) ? result.region.join("、") : "未提供"}
        </p>
      )}
      {call.name === "get_alpha_pnl" && call.status === "completed" && (
        <ChatPnl result={result} timezone={timezone} />
      )}
      {result.ok === true && (
        <p>
          操作已保存。
          {typeof result.alpha_id === "string" && (
            <button
              className="text-link"
              onClick={() => openAlpha(result.alpha_id as string)}
            >
              打开 Alpha
            </button>
          )}
        </p>
      )}
      {typeof result.updated === "number" && (
        <p>已更新 {result.updated} 条研究记录。</p>
      )}
    </>
  );
}
function researchValue(key: keyof Research, value: unknown) {
  if (key === "favorite") return value ? "已收藏" : "未收藏";
  if (key === "state")
    return (
      stateLabels[String(value) as keyof typeof stateLabels] ?? String(value)
    );
  if (Array.isArray(value)) return value.join("、") || "无";
  return String(value || "空");
}

function ChatPnl({
  result,
  timezone,
}: {
  result: Record<string, unknown>;
  timezone?: string;
}) {
  const [pnl, setPnl] = useState<Pnl | null>(null);
  useEffect(() => {
    let active = true;
    if (result.cached && typeof result.alpha_id === "string")
      api<Pnl>(`/alphas/${encodeURIComponent(result.alpha_id)}/pnl`)
        .then((value) => {
          if (active) setPnl(value);
        })
        .catch((error) => {
          if (active) Toast.error(error.message);
        });
    return () => {
      active = false;
    };
  }, [result.alpha_id, result.fetched_at, result.cached]);
  return result.cached ? (
    <div>
      {pnl && <PnlChart points={pnl.points} />}
      <small>
        {String(result.count)} 条记录 · 缓存于{" "}
        {formatTime(result.fetched_at as string, timezone)}
      </small>
    </div>
  ) : (
    <p>尚无 PnL 缓存，可以请求创建 PnL 刷新任务。</p>
  );
}