'use client';

import { useState, useCallback } from 'react';

export interface SearchResult {
  category?: string;
  type?: string;
  description?: string;
  notes?: string;
}

export interface SearchState {
  isSearching: boolean;
  searchError: string | null;
  searchResults: SearchResult | null;
  searchStatus: 'idle' | 'searching' | 'success' | 'timeout' | 'error' | 'no_results' | 'skipped';
  retryCount: number;
}

export function useItemSearch(options: { maxRetries?: number; timeout?: number } = {}) {
  const { maxRetries = 2, timeout = 30000 } = options;

  const [state, setState] = useState<SearchState>({
    isSearching: false,
    searchError: null,
    searchResults: null,
    searchStatus: 'idle',
    retryCount: 0,
  });

  const performSearch = useCallback(
    async (partNumber: string, category: string): Promise<SearchResult | null> => {
      if (!partNumber || !category) {
        setState(prev => ({ ...prev, searchStatus: 'skipped', searchError: null }));
        return null;
      }

      setState(prev => ({ ...prev, isSearching: true, searchStatus: 'searching', searchError: null, retryCount: 0 }));

      try {
        const controller = new AbortController();
        const timeoutId = setTimeout(() => controller.abort(), timeout);

        const response = await fetch('/api/onboarding/search', {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ partNumber, category }),
          signal: controller.signal,
        });

        clearTimeout(timeoutId);

        if (!response.ok) throw new Error(`Search failed: ${response.status}`);

        const results = await response.json();
        setState(prev => ({ ...prev, isSearching: false, searchStatus: 'success', searchResults: results }));
        return results;
      } catch (error) {
        const errorMsg = error instanceof Error ? error.message : 'Search failed';
        setState(prev => ({
          ...prev,
          isSearching: false,
          searchStatus: errorMsg.includes('abort') ? 'timeout' : 'error',
          searchError: errorMsg,
        }));
        return null;
      }
    },
    [timeout]
  );

  const retrySearch = useCallback(
    async (partNumber: string, category: string) => {
      if (state.retryCount >= maxRetries) {
        setState(prev => ({ ...prev, searchStatus: 'error' }));
        return null;
      }
      setState(prev => ({ ...prev, retryCount: prev.retryCount + 1 }));
      return performSearch(partNumber, category);
    },
    [state.retryCount, maxRetries, performSearch]
  );

  const skipSearch = useCallback(() => {
    setState(prev => ({ ...prev, searchStatus: 'skipped', isSearching: false }));
  }, []);

  return { state, performSearch, retrySearch, skipSearch };
}