package minecraft

import (
	"os"
	"path/filepath"
	"reflect"
	"strconv"

	"github.com/charmbracelet/log"
)

type (
	Options struct {
		MainHand string `toml:"main_hand" txt:"mainHand"`
		AO       bool   `toml:"smooth_lighting" txt:"ao"`
		Fov      int    `toml:"fov" txt:"fov"`
	}
)

func WriteOptions(options Options, path string) {
	plainText := "version:9999\n"

	reflectOptions := reflect.TypeOf(options)

	for i := range reflectOptions.NumField() {
		field := reflectOptions.Field(i)

		txt := field.Tag.Get("txt")
		if txt == "" {
			txt = field.Name
		}
		value := reflect.ValueOf(options).Field(i)

		switch field.Type.Kind() {
		case reflect.String:
			plainText += txt + ":" + "\"" + value.String() + "\"\n"
		case reflect.Int:
			plainText += txt + ":" + strconv.Itoa(int(value.Int())) + "\n"
		case reflect.Bool:
			plainText += txt + ":" + strconv.FormatBool(value.Bool()) + "\n"
		}
	}
	
	dir := filepath.Dir(path)
	if err := os.MkdirAll(dir, 0755); err != nil {
		log.Fatal("Failed creating instance directory ", dir, ": ", err)
		return
	}

	if err := os.WriteFile(path, []byte(plainText), 0755); err != nil {
		log.Fatal("Failed writing options", "error", err)
	}
}