import { spawnSync } from "node:child_process";

const LSAPPINFO = "/usr/bin/lsappinfo";

export function matchesTerminalApplication(
	termProgram: string | undefined,
	frontmostInfo: string,
): boolean | undefined {
	const terminal = (termProgram ?? "").toLowerCase();
	const application = frontmostInfo.toLowerCase();

	if (terminal.includes("ghostty")) {
		return application.includes("ghostty");
	}
	if (terminal.includes("iterm")) {
		return (
			application.includes("com.googlecode.iterm2") ||
			application.includes("iterm")
		);
	}
	if (terminal.includes("apple_terminal")) {
		return application.includes("com.apple.terminal");
	}
	return undefined;
}

export function shouldSuppressForFocus(
	reportedFocused: boolean,
	applicationFrontmost: boolean | undefined,
): boolean {
	return reportedFocused && applicationFrontmost !== false;
}

export function isTerminalApplicationFrontmost(
	termProgram = process.env.TERM_PROGRAM,
): boolean | undefined {
	const front = spawnSync(LSAPPINFO, ["front"], {
		encoding: "utf8",
		stdio: ["ignore", "pipe", "ignore"],
		timeout: 1_000,
	});
	const applicationId = front.stdout.trim();
	if (front.status !== 0 || !applicationId) return undefined;

	const info = spawnSync(
		LSAPPINFO,
		["info", "-only", "name,bundleid", applicationId],
		{
			encoding: "utf8",
			stdio: ["ignore", "pipe", "ignore"],
			timeout: 1_000,
		},
	);
	if (info.status !== 0 || !info.stdout.trim()) return undefined;
	return matchesTerminalApplication(termProgram, info.stdout);
}