package config

import (
	"os"
	"path/filepath"
	"sync"
)

type Config struct {
	ListenAddr string
	DataDir    string
	DBPath     string
	ReposDir   string
}

var instance *Config
var initOnce sync.Once

func Get() *Config {
	initOnce.Do(func() {
		instance = &Config{
			ListenAddr: ":9000",
			DataDir:    "./data",
		}
	})
	return instance
}

func (c *Config) SetDataDir(dir string) {
	c.DataDir = dir
	c.DBPath = filepath.Join(dir, "gitm.db")
	c.ReposDir = filepath.Join(dir, "repos")
}

func (c *Config) EnsureDirs() error {
	if err := os.MkdirAll(c.DataDir, 0755); err != nil {
		return err
	}
	return os.MkdirAll(c.ReposDir, 0755)
}