scroll/src/bun/terminal_io.ts

/**
 * Wrap the runtime-specific hook into stdin
 */
import { ITerminalIO, ITerminalSize } from '../common/mod.ts';

export async function* inputLoop() {
	for await (const chunk of Bun.stdin.stream()) {
		yield chunk;
	}
}

export async function write(s: string): Promise<void> {
	const buffer = new TextEncoder().encode(s);

	await Bun.write(Bun.stdout, buffer);
}

export function getSize(): ITerminalSize {
	// @TODO implement
	// Check for tput
	// If has tput, use it to get terminal size
	// If not, try FFI fallback
	// Otherwise, return 80x25 as a last resort
	const fallback: ITerminalSize = { rows: 25, cols: 80 };

	return fallback;
}

const BunTerminalIO: ITerminalIO = {
	inputLoop,
	getSize,
	write,
};

export default BunTerminalIO;