package main

import (
	"fmt"
	"github.com/BurntSushi/toml"
	"os"
	"path/filepath"
)

type Config struct {
	WowDir    string
	LaunchCmd string
}

const (
	configDirName = "epochcli"
	configName    = "config.toml"
)

var cfgPath string

func setupConfig() (*Config, error) {
	home := os.Getenv("HOME")
	if home == "" {
		return nil, fmt.Errorf("$HOME environment variable not set")
	}

	newConfig := Config{
		WowDir:    defaultWowPath,
		LaunchCmd: defaultLaunchCmd,
	}

	cfgPath = filepath.Join(home, ".config", configDirName, configName)

	if _, statErr := os.Stat(cfgPath); os.IsNotExist(statErr) {
		os.MkdirAll(filepath.Join(home, ".config", configDirName), 0755)

		file, err := os.Create(cfgPath)
		if err != nil {
			return nil, err
		}
		defer file.Close()

		encoder := toml.NewEncoder(file)
		if err = encoder.Encode(newConfig); err != nil {
			return nil, err
		}

		fmt.Printf("Created new config at %s, edit it before running the launcher again\n", cfgPath)
		os.Exit(0)
	}

	_, err := toml.DecodeFile(cfgPath, &newConfig)
	if err != nil {
		return nil, err
	}

	return &newConfig, nil
}