Class: Collavre::CommentSnapshotRestoreService

Inherits:
Object
  • Object
show all
Defined in:
app/services/collavre/comment_snapshot_restore_service.rb

Defined Under Namespace

Classes: RestoreError

Instance Method Summary collapse

Constructor Details

#initialize(snapshot:, user:) ⇒ CommentSnapshotRestoreService

Returns a new instance of CommentSnapshotRestoreService.



7
8
9
10
 
# File 'app/services/collavre/comment_snapshot_restore_service.rb', line 7

def initialize(snapshot:, user:)
  @snapshot = snapshot
  @user = user
end

Instance Method Details

#call ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'app/services/collavre/comment_snapshot_restore_service.rb', line 12

def call
  ActiveRecord::Base.transaction do
    # Lock the snapshot row to prevent concurrent restore (P2 fix)
    locked_snapshot = CommentSnapshot.lock.find(@snapshot.id)

    if locked_snapshot.restored_at.present?
      raise RestoreError, I18n.t("collavre.comment_snapshots.already_restored")
    end

    validate_permission!

    # Build a mapping from old comment IDs to new comments for quoted_comment_id restoration
    old_id_to_new = {}

    # First pass: recreate all comments without quoted_comment_id
    recreated = locked_snapshot.comments_data.map do |data|
      comment = Comment.create!(
        creative_id: locked_snapshot.creative_id,
        user_id: data["user_id"],
        topic_id: data["topic_id"],
        content: data["content"],
        private: data["private"] || false,
        quoted_text: data["quoted_text"],
        review_type: data["review_type"],
        skip_default_user: true
      )
      # Re-attach images if blob IDs were preserved in the snapshot
      if data["image_blob_ids"].present?
        blobs = ActiveStorage::Blob.where(id: data["image_blob_ids"])
        blobs.each { |blob| comment.images.attach(blob) }
      end
      old_id_to_new[data["id"]] = comment
      comment
    end

    # Second pass: restore quoted_comment_id for comments that reference other restored comments
    locked_snapshot.comments_data.each do |data|
      next unless data["quoted_comment_id"].present?

      new_comment = old_id_to_new[data["id"]]
      quoted_new = old_id_to_new[data["quoted_comment_id"]]
      new_comment.update_column(:quoted_comment_id, quoted_new.id) if quoted_new
    end

    # Delete the result comment (the AI summary/merged comment)
    # Use nullify + delete to avoid cascading destruction of quoting_comments (P1 fix)
    if locked_snapshot.result_comment
      result = locked_snapshot.result_comment
      # Detach any comments that quote this result so they aren't cascade-deleted
      result.quoting_comments.update_all(quoted_comment_id: nil) # rubocop:disable Rails/SkipsModelValidations
      result.destroy
    end

    # Mark snapshot as restored
    locked_snapshot.update!(restored_at: Time.current)

    recreated
  end
end