update db and added weight

internal/states/weight_bot_state/weight_bot_state.go

@@ -6,11 +6,13 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
-	"valera/internal/db"
-	"valera/internal/states"
 
 	tgbot "github.com/go-telegram-bot-api/telegram-bot-api"
 	"golang.org/x/exp/slices"
+
+	"valera/internal/db"
+	"valera/internal/modules/times"
+	"valera/internal/states"
 )
 
 var names = []string{
@@ -44,7 +46,16 @@ func (s *weightBotState) Do(text string, chatInfo *db.ChatInfo) error {
 			log.Println(err)
 			return nil
 		}
-		_, _ = s.bot.Send(tgbot.NewMessage(chatInfo.ChatID, fmt.Sprintf("%vкг, записал.", weight)))
+		stat, err := s.dataBase.GetStatBetween(chatInfo.ChatID, times.GetStartDayMinus(1), times.GetStartDay())
+		if err != nil {
+			log.Println(err)
+			return nil
+		}
+		dWeight := 0.0
+		if stat["Вес кг"] != 0 {
+			dWeight = weight - stat["Вес кг"]
+		}
+		_, _ = s.bot.Send(tgbot.NewMessage(chatInfo.ChatID, fmt.Sprintf("%vкг, записал.\nИзменение веса: %vкг", weight, dWeight)))
 		return s.dataBase.SetStatusToChat(chatInfo.ChatID, db.UserStateNone)
 	}