// src/views/Company/components/CompanyOverview/hooks/useDisclosureData.ts
// 披露日程数据 Hook - 用于工商信息 Tab

import { useState, useEffect, useRef } from "react";
import { logger } from "@utils/logger";
import axios from "@utils/axiosConfig";
import type { DisclosureSchedule } from "../types";

interface ApiResponse<T> {
  success: boolean;
  data: T;
}

// 支持延迟加载的配置选项
interface UseDisclosureDataOptions {
  stockCode?: string;
  /** 是否启用数据加载，默认 true */
  enabled?: boolean;
}

interface UseDisclosureDataResult {
  disclosureSchedule: DisclosureSchedule[];
  loading: boolean;
  error: string | null;
}

/**
 * 披露日程数据 Hook（支持延迟加载）
 * @param options - 配置选项
 * @param options.stockCode - 股票代码
 * @param options.enabled - 是否启用数据加载，默认 true
 */
export const useDisclosureData = (options: UseDisclosureDataOptions): UseDisclosureDataResult => {
  const { stockCode, enabled = true } = options;

  const [disclosureSchedule, setDisclosureSchedule] = useState<DisclosureSchedule[]>([]);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);
  // 使用 ref 跟踪是否已加载，避免 Tab 切换时重复请求
  const hasLoadedRef = useRef(false);
  // 记录上次加载的 stockCode，stockCode 变化时需要重新加载
  const lastStockCodeRef = useRef<string | undefined>(undefined);

  useEffect(() => {
    // 只有 enabled 且有 stockCode 时才请求
    if (!enabled || !stockCode) {
      setLoading(false);
      return;
    }

    // stockCode 变化时重置加载状态
    if (lastStockCodeRef.current !== stockCode) {
      hasLoadedRef.current = false;
      lastStockCodeRef.current = stockCode;
    }

    // 如果已经加载过数据，不再重新请求（Tab 切换回来时保持缓存）
    if (hasLoadedRef.current) {
      setLoading(false);
      return;
    }

    const controller = new AbortController();

    const loadData = async () => {
      setLoading(true);
      setError(null);

      try {
        const { data: result } = await axios.get<ApiResponse<DisclosureSchedule[]>>(
          `/api/stock/${stockCode}/disclosure-schedule`,
          { signal: controller.signal }
        );

        if (result.success) {
          setDisclosureSchedule(result.data);
        } else {
          setError("加载披露日程数据失败");
        }
        setLoading(false);
        hasLoadedRef.current = true;
      } catch (err: any) {
        // 请求被取消时，不更新任何状态
        if (err.name === "CanceledError") {
          return;
        }
        logger.error("useDisclosureData", "loadData", err, { stockCode });
        setError("网络请求失败");
        setLoading(false);
        hasLoadedRef.current = true;
      }
    };

    loadData();
    return () => controller.abort();
  }, [stockCode, enabled]);

  const isLoading = loading || (enabled && !hasLoadedRef.current && !error);

  return { disclosureSchedule, loading: isLoading, error };
};