/* @jsxImportSource @opentui/react */ import { useKeyboard } from "@opentui/react"; import React, { useState } from "react"; import { useTheme } from "@/hooks/use-theme"; export interface Command { id: string; label: string; description?: string; shortcut?: string; onSelect?: () => void; group?: string; } export interface CommandPaletteProps { commands: Command[]; isOpen: boolean; onClose?: () => void; placeholder?: string; maxItems?: number; } const fuzzyMatch = (str: string, query: string): boolean => { if (!query) { return true; } const s = str.toLowerCase(); const q = query.toLowerCase(); let qi = 0; for (let i = 0; i < s.length && qi < q.length; i += 1) { if (s[i] === q[qi]) { qi += 1; } } return qi === q.length; }; const fuzzyScore = (str: string, query: string): number => { if (!query) { return 0; } const s = str.toLowerCase(); const q = query.toLowerCase(); let score = 0; let qi = 0; let lastMatchIdx = -1; for (let i = 0; i < s.length && qi < q.length; i += 1) { if (s[i] === q[qi]) { score += i - lastMatchIdx - 1; lastMatchIdx = i; qi += 1; } } return score; }; export const CommandPalette = ({ commands, isOpen, onClose, placeholder = "Type a command...", maxItems = 8, }: CommandPaletteProps) => { const theme = useTheme(); const [query, setQuery] = useState(""); const [cursor, setCursor] = useState(0); const filtered = commands .filter((c) => fuzzyMatch(c.label, query)) .toSorted((a, b) => fuzzyScore(a.label, query) - fuzzyScore(b.label, query)) .slice(0, maxItems); useKeyboard((key) => { if (!isOpen) { return; } if (key.name === "escape") { setQuery(""); setCursor(0); onClose?.(); return; } if (key.name === "up") { setCursor((c) => Math.max(0, c - 1)); return; } if (key.name === "down") { setCursor((c) => Math.min(filtered.length - 1, c + 1)); return; } if (key.name === "return") { const cmd = filtered[cursor]; if (cmd) { cmd.onSelect?.(); setQuery(""); setCursor(0); onClose?.(); } return; } if (key.name === "backspace" || key.name === "delete") { setQuery((q) => q.slice(0, -1)); setCursor(0); return; } if (key.name === "tab") { return; } if (key.name.length > 1) { return; } setQuery((q) => q + key.name); setCursor(0); }); if (!isOpen) { return null; } const groups = new Map(); for (const cmd of filtered) { const g = cmd.group; if (!groups.has(g)) { groups.set(g, []); } groups.get(g)?.push(cmd); } let flatIdx = 0; return ( {"⌘ "} {query || placeholder} █ {filtered.length === 0 ? ( No commands found ) : ( {[...groups.entries()].map(([group, cmds]) => ( {group && ( {group} )} {cmds.map((cmd) => { const idx = (flatIdx += 1); const isCursor = idx === cursor; return ( {isCursor ? {cmd.label} : cmd.label} {cmd.description && ( {` — ${cmd.description}`} )} {cmd.shortcut && ( {cmd.shortcut} )} ); })} ))} )} ↑↓: navigate · Enter: run · Esc: close ); };