TP-0000 | participant limit fix (#55)

* TP-0000 | setting limit of 10 in get users api

* TP-0000 | fetching all users by splitting them

pkg/slackbot/users.go

@@ -12,13 +12,18 @@ func (c *Client) GetUsersInfo(users ...string) (*[]slack.User, error) {
 	if len(users) == 0 {
 		return &[]slack.User{}, nil
 	}
-	userInfo, err := c.socketModeClient.GetUsersInfo(users...)
-	if err != nil {
-		c.logger.Error("get users info failed", zap.Any("users", users), zap.Error(err))
-		return nil, fmt.Errorf("get users info failed. err: %v", err)
+	var usersInfo []slack.User
+	splittedUsersList := splitUsers(users, 30)
+	for usersList := range splittedUsersList {
+		usersInfoResponse, err := c.socketModeClient.GetUsersInfo(splittedUsersList[usersList]...)
+		if err != nil {
+			c.logger.Error("get users info failed", zap.Any("users", splittedUsersList[usersList]), zap.Error(err))
+			return nil, fmt.Errorf("get users info failed. err: %v", err)
+		}
+		usersInfo = append(usersInfo, *usersInfoResponse...)
 	}
 
-	return userInfo, nil
+	return &usersInfo, nil
 }
 
 func (c *Client) GetUsersInConversation(channelId string) ([]string, error) {
@@ -71,3 +76,15 @@ func (c *Client) GetUserEmailsOrNameByIds(userIds ...string) (map[string]string,
 	})
 	return userIdAndIdentityMapping, nil
 }
+
+func splitUsers(users []string, chunkSize int) [][]string {
+	var result [][]string
+	for i := 0; i < len(users); i += chunkSize {
+		end := i + chunkSize
+		if end > len(users) {
+			end = len(users)
+		}
+		result = append(result, users[i:end])
+	}
+	return result
+}