// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

package service

import "fmt"

func validateServicePaths(cfg Config) error {
	if err := validateShellSafePath("executable path", cfg.ExePath); err != nil {
		return err
	}

	return validateShellSafePath("state directory", cfg.Dir)
}

func validateShellSafePath(label, path string) error {
	if path == "" {
		return nil
	}

	for _, r := range path {
		switch r {
		case '"', '\'', '`', '$', ';', '\n', '\r', '\000':
			return fmt.Errorf(
				"%s contains shell-unsafe character %q",
				label,
				r,
			)
		}
	}

	return nil
}