// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved. // See LICENSE.txt for license information. package plugindelivery import ( "errors" "fmt" "github.com/mattermost/focalboard/server/model" mm_model "github.com/mattermost/mattermost-server/v6/model" ) var ( ErrUnsupportedSubscriberType = errors.New("invalid subscriber type") ) // SubscriptionDeliverSlashAttachments notifies a user that changes were made to a block they are subscribed to. func (pd *PluginDelivery) SubscriptionDeliverSlackAttachments(subscriberID string, subscriptionType model.SubscriberType, attachments []*mm_model.SlackAttachment) error { // check subscriber is member of channel _, err := pd.api.GetUserByID(subscriberID) if err != nil { if pd.api.IsErrNotFound(err) { // subscriber is not a member of the channel; fail silently. return nil } return fmt.Errorf("cannot fetch channel member for user %s: %w", subscriberID, err) } channelID, err := pd.getDirectChannelID(subscriberID, subscriptionType, pd.botID) if err != nil { return err } post := &mm_model.Post{ UserId: pd.botID, ChannelId: channelID, } mm_model.ParseSlackAttachment(post, attachments) return pd.api.CreatePost(post) } func (pd *PluginDelivery) getDirectChannelID(subscriberID string, subscriberType model.SubscriberType, botID string) (string, error) { switch subscriberType { case model.SubTypeUser: user, err := pd.api.GetUserByID(subscriberID) if err != nil { return "", fmt.Errorf("cannot find user: %w", err) } channel, err := pd.api.GetDirectChannel(user.Id, botID) if err != nil { return "", fmt.Errorf("cannot get direct channel: %w", err) } return channel.Id, nil case model.SubTypeChannel: return subscriberID, nil default: return "", ErrUnsupportedSubscriberType } }