Rewrite website as a Hyprland desktop

src/lib/terminal/completion.ts

@@ -0,0 +1,37 @@
+import { findCommand, visibleCommandNames } from './commands';
+
+export interface CompletionResult {
+	input: string;
+	options: string[];
+}
+
+function sharedPrefix(words: string[]): string {
+	return words.reduce((prefix, word) => {
+		let length = 0;
+		while (length < prefix.length && prefix[length] === word[length]) length++;
+		return prefix.slice(0, length);
+	});
+}
+
+function candidatesFor(words: string[]): string[] {
+	if (words.length <= 1) return visibleCommandNames();
+	if (words.length > 2) return [];
+	return findCommand(words[0])?.argumentOptions?.() ?? [];
+}
+
+export function complete(input: string): CompletionResult {
+	const words = input.trimStart().split(/\s+/);
+	const partial = words.at(-1) ?? '';
+	const matches = [...new Set(candidatesFor(words))].filter((candidate) =>
+		candidate.toLowerCase().startsWith(partial.toLowerCase())
+	);
+
+	if (matches.length === 0) return { input, options: [] };
+
+	const before = input.slice(0, input.length - partial.length);
+	if (matches.length === 1) return { input: `${before}${matches[0]} `, options: [] };
+
+	const prefix = sharedPrefix(matches);
+	const madeProgress = prefix.length > partial.length;
+	return { input: `${before}${madeProgress ? prefix : partial}`, options: madeProgress ? [] : matches.sort() };
+}