// Command basic demonstrates decoding and encoding a TOML document with
// interpres.
package main

import (
	"fmt"
	"log"

	"sourcedock.dev/petrbalvin/interpres"
)

const document = `
title = "interpres demo"

[server]
host = "127.0.0.1"
port = 9090

[[users]]
name = "petr"
admin = true

[[users]]
name = "guest"
admin = false
`

// Config mirrors the document above.
type Config struct {
	Title  string `toml:"title"`
	Server struct {
		Host string `toml:"host"`
		Port int    `toml:"port"`
	} `toml:"server"`
	Users []struct {
		Name  string `toml:"name"`
		Admin bool   `toml:"admin"`
	} `toml:"users"`
}

func main() {
	var cfg Config
	if err := interpres.Unmarshal([]byte(document), &cfg); err != nil {
		log.Fatal(err)
	}

	fmt.Printf("title:  %s\n", cfg.Title)
	fmt.Printf("server: %s:%d\n", cfg.Server.Host, cfg.Server.Port)
	for _, u := range cfg.Users {
		fmt.Printf("user:   %-6s admin=%t\n", u.Name, u.Admin)
	}

	out, err := interpres.Marshal(cfg)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("\n--- marshal ---\n%s", out)
}