/**
 * `useHistory` hook — fetches and manages ban history data.
 */

import { useCallback, useEffect, useRef, useState } from "react";
import { fetchHistory, fetchIpHistory } from "../api/history";
import { handleFetchError } from "../utils/fetchError";
import type { HistoryBanItem, IpDetailResponse } from "../types/history";
import type { BanOriginFilter, TimeRange } from "../types/ban";

// ---------------------------------------------------------------------------
// useHistory — paginated list
// ---------------------------------------------------------------------------

export interface UseHistoryResult {
  items: HistoryBanItem[];
  total: number;
  page: number;
  loading: boolean;
  error: string | null;
  setPage: (page: number) => void;
  refresh: () => void;
}

/**
 * Fetch and manage paginated ban history with optional filters.
 *
 * @param page - Current page number (1-indexed)
 * @param pageSize - Items per page
 * @param range - Time range filter (e.g., "7d", "30d")
 * @param origin - Ban origin filter (e.g., "fail2ban", "blocklist")
 * @param jail - Jail name filter (optional)
 * @param ip - IP address filter (optional)
 * @param source - Data source ("fail2ban" | "archive")
 * @returns History data with pagination and error state
 */
export function useHistory(
  page: number = 1,
  pageSize: number = 50,
  range?: TimeRange,
  origin?: BanOriginFilter,
  jail?: string,
  ip?: string,
  source: "fail2ban" | "archive" = "archive",
): UseHistoryResult {
  const [items, setItems] = useState<HistoryBanItem[]>([]);
  const [total, setTotal] = useState(0);
  const [currentPage, setCurrentPage] = useState(page);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);
  const abortRef = useRef<AbortController | null>(null);

  const load = useCallback((): void => {
    abortRef.current?.abort();
    abortRef.current = new AbortController();
    setLoading(true);
    setError(null);

    fetchHistory(
      {
        page: currentPage,
        page_size: pageSize,
        range,
        origin,
        jail,
        ip,
        source,
      },
      abortRef.current.signal,
    )
      .then((resp) => {
        setItems(resp.items);
        setTotal(resp.total);
      })
      .catch((err: unknown) => {
        handleFetchError(err, setError, "Failed to fetch history");
      })
      .finally((): void => {
        setLoading(false);
      });
  }, [currentPage, pageSize, range, origin, jail, ip, source]);


  useEffect((): (() => void) => {
    load();
    return (): void => {
      abortRef.current?.abort();
    };
  }, [load]);

  return {
    items,
    total,
    page: currentPage,
    loading,
    error,
    setPage: setCurrentPage,
    refresh: load,
  };
}

// ---------------------------------------------------------------------------
// useIpHistory — per-IP detail
// ---------------------------------------------------------------------------

export interface UseIpHistoryResult {
  detail: IpDetailResponse | null;
  loading: boolean;
  error: string | null;
  refresh: () => void;
}

export function useIpHistory(ip: string): UseIpHistoryResult {
  const [detail, setDetail] = useState<IpDetailResponse | null>(null);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);
  const abortRef = useRef<AbortController | null>(null);

  const load = useCallback((): void => {
    abortRef.current?.abort();
    abortRef.current = new AbortController();
    setLoading(true);
    setError(null);

    fetchIpHistory(ip, abortRef.current.signal)
      .then((resp) => {
        setDetail(resp);
      })
      .catch((err: unknown) => {
        handleFetchError(err, setError, "Failed to fetch IP history");
      })
      .finally((): void => {
        setLoading(false);
      });
  }, [ip]);

  useEffect((): (() => void) => {
    load();
    return (): void => {
      abortRef.current?.abort();
    };
  }, [load]);

  return { detail, loading, error, refresh: load };
}