embed integrity check task in backup API responses

The UI is polling for the taskId, might as well attach it

src/backups.js

@@ -42,9 +42,14 @@ function postProcess(result) {
 }
 
 function removePrivateFields(backup) {
+    delete backup.integrityCheckTaskId;
     return backup;
 }
 
+async function attachIntegrityTaskInfo(backup) {
+    backup.integrityCheckTask = backup.integrityCheckTaskId ? await tasks.get(String(backup.integrityCheckTaskId)) : null;
+}
+
 async function add(data) {
     assert(data && typeof data === 'object');
     assert.strictEqual(typeof data.remotePath, 'string');
@@ -82,16 +87,19 @@ async function getLatestInTargetByIdentifier(identifier, siteId) {
 
     const results = await database.query(`SELECT ${BACKUPS_FIELDS} FROM backups WHERE identifier = ? AND state = ? AND siteId = ? LIMIT 1`, [ identifier, BACKUP_STATE_NORMAL, siteId ]);
     if (!results.length) return null;
+
+    await attachIntegrityTaskInfo(results[0]);
     return postProcess(results[0]);
 }
 
 async function get(id) {
     assert.strictEqual(typeof id, 'string');
 
-    const result = await database.query(`SELECT ${BACKUPS_FIELDS} FROM backups WHERE id = ? ORDER BY creationTime DESC`, [ id ]);
-    if (result.length === 0) return null;
+    const results = await database.query(`SELECT ${BACKUPS_FIELDS} FROM backups WHERE id = ? ORDER BY creationTime DESC`, [ id ]);
+    if (results.length === 0) return null;
 
-    return postProcess(result[0]);
+    await attachIntegrityTaskInfo(results[0]);
+    return postProcess(results[0]);
 }
 
 function validateLabel(label) {
@@ -145,7 +153,10 @@ async function listByTypePaged(type, siteId, page, perPage) {
 
     const results = await database.query(`SELECT ${BACKUPS_FIELDS} FROM backups WHERE siteId=? AND type = ? ORDER BY creationTime DESC LIMIT ?,?`, [ siteId, type, (page-1)*perPage, perPage ]);
 
-    results.forEach(function (result) { postProcess(result); });
+    for (const r of results) {
+        await attachIntegrityTaskInfo(r);
+        postProcess(r);
+    }
 
     return results;
 }
@@ -158,7 +169,10 @@ async function listByIdentifierAndStatePaged(identifier, state, page, perPage) {
 
     const results = await database.query(`SELECT ${BACKUPS_FIELDS} FROM backups WHERE identifier = ? AND state = ? ORDER BY creationTime DESC LIMIT ?,?`, [ identifier, state, (page-1)*perPage, perPage ]);
 
-    results.forEach(postProcess);
+    for (const r of results) {
+        await attachIntegrityTaskInfo(r);
+        postProcess(r);
+    }
 
     return results;
 }