// Path resolution for the sandbox model.
//
// The sandbox shares the host filesystem at identity paths (bwrap binds real
// paths; sandbox-exec doesn't virtualize the filesystem at all), so a path is
// the same inside and outside — no host<->guest translation. This just resolves
// a model-supplied path to an absolute host path against the working directory.

import path from "node:path";

function stripAtPrefix(value: string): string {
	return value.startsWith("@") ? value.slice(1) : value;
}

/** Resolve a model-supplied path (relative or absolute) to an absolute host path. */
export function resolveInputPath(cwd: string, inputPath: string): string {
	const trimmed = stripAtPrefix(inputPath.trim());
	if (!trimmed) return cwd;
	return path.resolve(cwd, trimmed);
}