From 6cb556449064278bdcb1a54a7b980c2e7bc735f0 Mon Sep 17 00:00:00 2001
From: Chocobozzz <me@florianbigard.com>
Date: Fri, 20 Mar 2020 14:43:12 +0100
Subject: Fix add comment in threads with deleted comments

---
 .../videos/+video-watch/comment/video-comment-add.component.ts   | 2 +-
 .../app/videos/+video-watch/comment/video-comment.component.ts   | 9 +++++++--
 .../app/videos/+video-watch/comment/video-comments.component.ts  | 2 +-
 server/lib/activitypub/audience.ts                               | 2 ++
 server/lib/activitypub/send/send-create.ts                       | 3 ++-
 5 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/client/src/app/videos/+video-watch/comment/video-comment-add.component.ts b/client/src/app/videos/+video-watch/comment/video-comment-add.component.ts
index 5784efcdf..0f7c19765 100644
--- a/client/src/app/videos/+video-watch/comment/video-comment-add.component.ts
+++ b/client/src/app/videos/+video-watch/comment/video-comment-add.component.ts
@@ -57,7 +57,7 @@ export class VideoCommentAddComponent extends FormReactive implements OnInit {
 
       if (this.parentComment) {
         const mentions = this.parentComments
-          .filter(c => c.account.id !== this.user.account.id) // Don't add mention of ourselves
+          .filter(c => c.account && c.account.id !== this.user.account.id) // Don't add mention of ourselves
           .map(c => '@' + c.by)
 
         const mentionsSet = new Set(mentions)
diff --git a/client/src/app/videos/+video-watch/comment/video-comment.component.ts b/client/src/app/videos/+video-watch/comment/video-comment.component.ts
index f7eca45fd..1313b6585 100644
--- a/client/src/app/videos/+video-watch/comment/video-comment.component.ts
+++ b/client/src/app/videos/+video-watch/comment/video-comment.component.ts
@@ -125,7 +125,12 @@ export class VideoCommentComponent implements OnInit, OnChanges {
     const html = await this.markdownService.textMarkdownToHTML(this.comment.text, true)
     this.sanitizedCommentHTML = await this.markdownService.processVideoTimestamps(html)
     this.newParentComments = this.parentComments.concat([ this.comment ])
-    this.commentAccount = new Account(this.comment.account)
-    this.getUserIfNeeded(this.commentAccount)
+
+    if (this.comment.account) {
+      this.commentAccount = new Account(this.comment.account)
+      this.getUserIfNeeded(this.commentAccount)
+    } else {
+      this.comment.account = null
+    }
   }
 }
diff --git a/client/src/app/videos/+video-watch/comment/video-comments.component.ts b/client/src/app/videos/+video-watch/comment/video-comments.component.ts
index f2bb5c464..f1408effb 100644
--- a/client/src/app/videos/+video-watch/comment/video-comments.component.ts
+++ b/client/src/app/videos/+video-watch/comment/video-comments.component.ts
@@ -183,7 +183,7 @@ export class VideoCommentsComponent implements OnInit, OnChanges, OnDestroy {
           // Mark the comment as deleted
           this.softDeleteComment(commentToDelete)
 
-          if (this.highlightedThread.id === commentToDelete.id) this.highlightedThread = undefined
+          if (this.highlightedThread?.id === commentToDelete.id) this.highlightedThread = undefined
         },
 
         err => this.notifier.error(err.message)
diff --git a/server/lib/activitypub/audience.ts b/server/lib/activitypub/audience.ts
index 9933ae2b5..551d04ae3 100644
--- a/server/lib/activitypub/audience.ts
+++ b/server/lib/activitypub/audience.ts
@@ -32,6 +32,8 @@ function getVideoCommentAudience (
 
   // Send to actors we reply to
   for (const parentComment of threadParentComments) {
+    if (parentComment.isDeleted()) continue
+
     cc.push(parentComment.Account.Actor.url)
   }
 
diff --git a/server/lib/activitypub/send/send-create.ts b/server/lib/activitypub/send/send-create.ts
index 8bdcf6417..e2fa061e8 100644
--- a/server/lib/activitypub/send/send-create.ts
+++ b/server/lib/activitypub/send/send-create.ts
@@ -80,7 +80,8 @@ async function sendCreateVideoComment (comment: MCommentOwnerVideo, t: Transacti
   // Add the actor that commented too
   actorsInvolvedInComment.push(byActor)
 
-  const parentsCommentActors = threadParentComments.map(c => c.Account.Actor)
+  const parentsCommentActors = threadParentComments.filter(c => !c.isDeleted())
+                                                   .map(c => c.Account.Actor)
 
   let audience: ActivityAudience
   if (isOrigin) {
-- 
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