Started REPL env for custom interactive shell

ONLY active when bot is running
- Arguments [--watch] displays how many usses of each trigger and how
many uses over the lifetime ofthe bot
Commands
- title [get/set] <newTitle>
- category [get/set] <newCategory> - MUST be a legit Twitch.tv one
- yet to come [cmd add|del|edit] [trigger] [response] (NOTE if you want
Emotes you will have to type the 'name' in for twitch chat to recognise
it)

internal/config/config.go

@@ -0,0 +1,84 @@
+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
+}