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import { useEffect, useCallback } from 'react'; |
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import { useCompletion } from './useCompletion.js'; |
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import type { TextBuffer } from '../components/shared/text-buffer.js'; |
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import type { Suggestion } from '../components/SuggestionsDisplay.js'; |
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export interface UseReverseSearchCompletionReturn { |
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suggestions: Suggestion[]; |
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activeSuggestionIndex: number; |
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visibleStartIndex: number; |
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showSuggestions: boolean; |
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isLoadingSuggestions: boolean; |
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navigateUp: () => void; |
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navigateDown: () => void; |
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handleAutocomplete: (i: number) => void; |
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resetCompletionState: () => void; |
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} |
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export function useReverseSearchCompletion( |
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buffer: TextBuffer, |
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shellHistory: readonly string[], |
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reverseSearchActive: boolean, |
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): UseReverseSearchCompletionReturn { |
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const { |
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suggestions, |
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activeSuggestionIndex, |
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visibleStartIndex, |
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showSuggestions, |
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isLoadingSuggestions, |
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setSuggestions, |
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setShowSuggestions, |
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setActiveSuggestionIndex, |
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resetCompletionState, |
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navigateUp, |
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navigateDown, |
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} = useCompletion(); |
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useEffect(() => { |
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if (!reverseSearchActive) { |
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resetCompletionState(); |
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} |
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}, [reverseSearchActive, resetCompletionState]); |
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useEffect(() => { |
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if (!reverseSearchActive) { |
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return; |
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} |
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const q = buffer.text.toLowerCase(); |
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const matches = shellHistory.reduce<Suggestion[]>((acc, cmd) => { |
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const idx = cmd.toLowerCase().indexOf(q); |
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if (idx !== -1) { |
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acc.push({ label: cmd, value: cmd, matchedIndex: idx }); |
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} |
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return acc; |
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}, []); |
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setSuggestions(matches); |
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setShowSuggestions(matches.length > 0); |
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setActiveSuggestionIndex(matches.length > 0 ? 0 : -1); |
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}, [ |
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buffer.text, |
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shellHistory, |
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reverseSearchActive, |
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setActiveSuggestionIndex, |
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setShowSuggestions, |
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setSuggestions, |
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]); |
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const handleAutocomplete = useCallback( |
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(i: number) => { |
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if (i < 0 || i >= suggestions.length) return; |
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buffer.setText(suggestions[i].value); |
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resetCompletionState(); |
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}, |
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[buffer, suggestions, resetCompletionState], |
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); |
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return { |
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suggestions, |
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activeSuggestionIndex, |
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visibleStartIndex, |
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showSuggestions, |
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isLoadingSuggestions, |
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navigateUp, |
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navigateDown, |
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handleAutocomplete, |
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resetCompletionState, |
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}; |
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} |
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