scheduled attachment deletion WIP

src/becca/entities/bnote.js

@@ -1132,6 +1132,17 @@ class BNote extends AbstractBeccaEntity {
             .map(row => new BAttachment(row))[0];
     }
 
+    /** @returns {BAttachment[]} */
+    getAttachmentByRole(role) {
+        return sql.getRows(`
+                SELECT attachments.*
+                FROM attachments 
+                WHERE parentId = ? 
+                  AND role = ?
+                  AND isDeleted = 0`, [this.noteId, role])
+            .map(row => new BAttachment(row));
+    }
+
     /**
      * Gives all possible note paths leading to this note. Paths containing search note are ignored (could form cycles)
      *

src/public/app/services/utils.js

@@ -11,7 +11,7 @@ function parseDate(str) {
         return new Date(Date.parse(str));
     }
     catch (e) {
-        throw new Error(`Can't parse date from ${str}: ${e.stack}`);
+        throw new Error(`Can't parse date from '${str}': ${e.message} ${e.stack}`);
     }
 }
 

src/public/app/widgets/attachment_detail.js

@@ -100,6 +100,17 @@ export default class AttachmentDetailWidget extends BasicWidget {
                 .text(this.attachment.title);
         }
 
+        const {utcDateScheduledForDeletionSince} = this.attachment;
+
+        if (utcDateScheduledForDeletionSince) {
+            const scheduledSinceTimestamp = utils.parseDate(utcDateScheduledForDeletionSince)?.getTime();
+            const interval = 3600 * 1000;
+            const deletionTimestamp = scheduledSinceTimestamp + interval;
+            const willBeDeletedInSeconds = Math.round((deletionTimestamp - Date.now()) / 1000);
+
+            this.$wrapper.find('.attachment-title').append(`Will be deleted in ${willBeDeletedInSeconds} seconds.`);
+        }
+
         this.$wrapper.find('.attachment-details')
             .text(`Role: ${this.attachment.role}, Size: ${utils.formatSize(this.attachment.contentLength)}`);
         this.$wrapper.find('.attachment-actions-container').append(this.attachmentActionsWidget.render());

src/services/notes.js

@@ -336,6 +336,29 @@ function protectNote(note, protect) {
     }
 }
 
+function checkImageAttachments(note, content) {
+    const re = /src="[^"]*api\/attachments\/([a-zA-Z0-9_]+)\/image/g;
+    const foundAttachmentIds = new Set();
+    let match;
+
+    while (match = re.exec(content)) {
+        foundAttachmentIds.push(match[1]);
+    }
+
+    for (const attachment of note.getAttachmentByRole('image')) {
+        const imageInContent = foundAttachmentIds.has(attachment.attachmentId);
+
+        if (attachment.utcDateScheduledForDeletionSince && imageInContent) {
+            attachment.utcDateScheduledForDeletionSince = null;
+            attachment.save();
+        } else if (!attachment.utcDateScheduledForDeletionSince && !imageInContent) {
+            attachment.utcDateScheduledForDeletionSince = dateUtils.utcNowDateTime();
+            attachment.save();
+        }
+    }
+}
+
+
 function findImageLinks(content, foundLinks) {
     const re = /src="[^"]*api\/images\/([a-zA-Z0-9_]+)\//g;
     let match;
@@ -556,6 +579,8 @@ function saveLinks(note, content) {
         content = findImageLinks(content, foundLinks);
         content = findInternalLinks(content, foundLinks);
         content = findIncludeNoteLinks(content, foundLinks);
+
+        checkImageAttachments(note, content);
     }
     else if (note.type === 'relationMap') {
         findRelationMapLinks(content, foundLinks);
@@ -735,11 +760,13 @@ function scanForLinks(note, content) {
     }
 
     try {
-        const newContent = saveLinks(note, content);
+        sql.transactional(() => {
+            const newContent = saveLinks(note, content);
 
-        if (content !== newContent) {
-            note.setContent(newContent);
-        }
+            if (content !== newContent) {
+                note.setContent(newContent);
+            }
+        });
     }
     catch (e) {
         log.error(`Could not scan for links note ${note.noteId}: ${e.message} ${e.stack}`);