80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package notifymentions
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import (
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"fmt"
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"github.com/mattermost/focalboard/server/services/notify"
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"github.com/wiggin77/merror"
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"github.com/mattermost/mattermost-server/v6/shared/mlog"
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)
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const (
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backendName = "notifyMentions"
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)
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type Backend struct {
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delivery Delivery
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logger *mlog.Logger
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}
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func New(delivery Delivery, logger *mlog.Logger) *Backend {
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return &Backend{
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delivery: delivery,
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logger: logger,
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}
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}
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func (b *Backend) Start() error {
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return nil
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}
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func (b *Backend) ShutDown() error {
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_ = b.logger.Flush()
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return nil
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}
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func (b *Backend) Name() string {
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return backendName
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}
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func (b *Backend) BlockChanged(evt notify.BlockChangeEvent) error {
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if evt.Board == nil || evt.Card == nil {
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return nil
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}
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if evt.Action == notify.Delete {
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return nil
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}
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if evt.BlockChanged.Type != "text" && evt.BlockChanged.Type != "comment" {
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return nil
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}
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mentions := extractMentions(evt.BlockChanged)
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if len(mentions) == 0 {
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return nil
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}
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oldMentions := extractMentions(evt.BlockOld)
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merr := merror.New()
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for username := range mentions {
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if _, exists := oldMentions[username]; exists {
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// the mention already existed; no need to notify again
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continue
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}
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extract := extractText(evt.BlockChanged.Title, username, newLimits())
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err := b.delivery.Deliver(username, extract, evt)
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if err != nil {
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merr.Append(fmt.Errorf("cannot deliver notification for @%s: %w", username, err))
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}
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}
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return merr.ErrorOrNil()
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}
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