Refactoring

1. Move all pre-defined messages to constants in a separate file
2. Remove pkg/errors dependency

pkg/infrastructure/telegram/middleware/loggingmiddleware.go

@@ -1,39 +0,0 @@
-package middleware
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/nightnoryu/anon3anon/pkg/infrastructure/jsonlog"
-
-	"github.com/go-telegram/bot"
-	"github.com/go-telegram/bot/models"
-)
-
-const (
-	chatIDField   = "chat_id"
-	usernameField = "username"
-)
-
-func NewLoggingMiddleware(logger jsonlog.Logger) bot.Middleware {
-	return func(next bot.HandlerFunc) bot.HandlerFunc {
-		return func(ctx context.Context, bot *bot.Bot, update *models.Update) {
-			if update.Message == nil {
-				return
-			}
-
-			chatLogger := logger.
-				WithField(chatIDField, update.Message.Chat.ID).
-				WithField(usernameField, update.Message.From.Username)
-
-			text := update.Message.Text
-			if len(update.Message.Caption) > 0 {
-				text = update.Message.Caption
-			}
-
-			chatLogger.Info(fmt.Sprintf("new message: %s", text))
-
-			next(ctx, bot, update)
-		}
-	}
-}