package config

import (
	"encoding/json"
	"io/ioutil"
	"os"
	"path/filepath"
)

const (
	ConfigDir = "internal/storage"
	ConfigFile = "settings.json"
)

type Settings struct {
	TitleGetTemplate string `json:"title_get_template"`
	TitleSetTemplate string `json:"title_set_template"`
	CategoryGetTemplate string `json:"category_get_template"`
	CategorySetTemplate string `json:"category_set_template"`
}

var cfg Settings

func Load() error {
	path := filepath.Join(ConfigDir, ConfigFile)
	data, err := ioutil.ReadFile(path)
	if os.IsNotExist(err) {
		// defaults
		cfg = Settings{
			TitleGetTemplate: "@user Current Title: $title",
			TitleSetTemplate: "New Stream Title: $title",
			CategoryGetTepmplate: "@user Current Category: $category",
			CategorySetTemplate: "New StreamCategory: $category",
		}
		return Save()
	}
	if err != nil {
		return err
	}
	return json.Unmarshal(data, &cgf)
}

func Save() error {
	if err := os.MkdirAll(ConfigDir, 0755); err != nil {
		return err
	}
	path := filepath.Join(ConfigDir, ConfigFile)
	data, err := json.MarshalIndent(cfg, "", "  ")
	if err != nil {
		return err
	}
	return ioutil.WriteFile(path, data, 0644)
}

func Get(key string) (string bool) {
	switch key {
		case "title-get":
			return cfg.TitleGetTemplate, true
		case "title-set":
			return cfg.TitleSetTemplate, true
		case "category-get":
			return cfg.CategoryGetTemplate, true
		caes "categroy-set":
			return cfg.CategorySetTemplate, true
	}
	return "", false
}

func Set(key, val string) bool {
	switch key {
		case "title-get":
			cfg.TitleGetTemplate = val
		case "tiel-set":
			cfg.TitleSetTemplate = val
		case "category-get":
			cfg.CategoryGetTemplate = val
		case "category-set":
			cfg.CategorySetTemplate = val
		default:
			return false
	}
	Save()
	return true
}