package config

import (
	"fmt"
	"github.com/pelletier/go-toml/v2"
	"os"
)

type Config struct {
	Version     string
	Environment string        `toml:"environment"`
	Service     ServiceConfig `toml:"service"`
}

type ServiceConfig struct {
	Host string `toml:"host"`
	Port int    `toml:"port"`
}

var version *string

func Get() *Config {
	ret := Config{Version: *version}
	buf, err := os.ReadFile("config.toml")
	if err != nil {
		_, _ = fmt.Fprintf(os.Stderr, "%v", err)
		return nil
	}

	if err = toml.Unmarshal(buf, &ret); err != nil {
		_, _ = fmt.Fprintf(os.Stderr, "%v", err)
		return nil
	}

	return &ret
}

func DefineVersion(format string, args ...any) {
	var str = fmt.Sprintf(format, args)
	version = &str
}