// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

// probod-bootstrap generates a probod configuration file from environment variables.
package main

import (
	"flag"
	"fmt"
	"os"

	"go.probo.inc/probo/pkg/bootstrap"
)

var (
	version string = "unknown"
)

func main() {
	outputPath := flag.String("output", "/etc/probod/config.yml", "output path for the generated config file")
	format := flag.String("format", "yaml", "output format for the generated config file (yaml or json)")
	showVersion := flag.Bool("version", false, "print version and exit")

	flag.Parse()

	if *showVersion {
		fmt.Println(version)
		return
	}

	var configFormat bootstrap.Format

	switch *format {
	case "yaml":
		configFormat = bootstrap.FormatYAML
	case "json":
		configFormat = bootstrap.FormatJSON
	default:
		fmt.Fprintf(os.Stderr, "error: unsupported format %q, must be yaml or json\n", *format)
		os.Exit(1)
	}

	builder := bootstrap.NewBuilder(bootstrap.NewResolver(nil))

	cfg, err := builder.Build()
	if err != nil {
		fmt.Fprintf(os.Stderr, "error: %v\n", err)
		os.Exit(1)
	}

	if err := bootstrap.WriteConfig(cfg, *outputPath, configFormat); err != nil {
		fmt.Fprintf(os.Stderr, "error: %v\n", err)
		os.Exit(1)
	}

	fmt.Printf("Configuration file generated at: %s\n", *outputPath)
}