// Copyright 2026 Alibaba Group
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:build !windows

package auth

import (
	"fmt"
	"net/url"
	"os/exec"
	"runtime"
)

var browserStartCommand = func(name string, args ...string) error {
	return exec.Command(name, args...).Start()
}

func openBrowser(rawURL string) error {
	return openBrowserForOS(runtime.GOOS, rawURL)
}

func openBrowserForOS(goos, rawURL string) error {
	parsed, err := url.Parse(rawURL)
	if err != nil {
		return fmt.Errorf("invalid URL: %w", err)
	}
	if !allowedBrowserSchemes[parsed.Scheme] {
		return fmt.Errorf("refused to open URL with disallowed scheme %q", parsed.Scheme)
	}

	var command string
	switch goos {
	case "darwin":
		command = "open"
	case "linux":
		command = "xdg-open"
	default:
		return fmt.Errorf("unsupported platform: %s", goos)
	}
	return browserStartCommand(command, rawURL)
}