history snaphost time interval is now configurable in settings

src/notes_api.py

@@ -10,7 +10,7 @@ from flask_login import login_required
 
 from sql import delete
 from sql import execute, insert, commit
-from sql import getResults, getSingleResult
+from sql import getResults, getSingleResult, getOption
 
 notes_api = Blueprint('notes_api', __name__)
 
@@ -44,7 +44,9 @@ def updateNote(note_id):
 
     now = math.floor(time.time())
 
-    history_cutoff = now - 600
+    history_snapshot_time_interval = getOption('history_snapshot_time_interval')
+
+    history_cutoff = now - history_snapshot_time_interval
 
     history = getSingleResult("select id from notes_history where note_id = ? and date_modified >= ?", [note_id, history_cutoff])
 

src/settings_api.py

@@ -5,7 +5,7 @@ import sql
 
 settings_api = Blueprint('settings_api', __name__)
 
-allowed_options = [ 'encryption_session_timeout' ]
+allowed_options = [ 'encryption_session_timeout', 'history_snapshot_time_interval' ]
 
 @settings_api.route('/settings', methods = ['GET'])
 @login_required

src/templates/app.html

@@ -121,6 +121,7 @@
         <ul>
           <li><a href="#changePassword">Change password</a></li>
           <li><a href="#encryptionTimeout">Encryption timeout</a></li>
+          <li><a href="#historySnapshotTimeInterval">History snapshots</a></li>
         </ul>
         <div id="changePassword">
           <form id="changePasswordForm">
@@ -152,6 +153,18 @@
               <input class="form-control" id="encryptionTimeoutInSeconds" type="number">
             </div>
 
+            <button class="btn btn-sm">Save</button>
+          </form>
+        </div>
+        <div id="historySnapshotTimeInterval">
+          <p>History snapshot time interval is time in seconds after which new history record will be created for the note.</p>
+
+          <form id="historySnapshotTimeIntervalForm">
+            <div class="form-group">
+              <label for="historySnapshotTimeIntervalInSeconds">History snapshot time interval (in seconds)</label>
+              <input class="form-control" id="historySnapshotTimeIntervalInSeconds" type="number">
+            </div>
+
             <button class="btn btn-sm">Save</button>
           </form>
         </div>

static/js/settings.js

@@ -4,6 +4,7 @@ function displaySettings() {
         type: 'GET',
         success: function (result) {
             $("#encryptionTimeoutInSeconds").val(result['encryption_session_timeout']);
+            $("#historySnapshotTimeIntervalInSeconds").val(result['history_snapshot_time_interval']);
         },
         error: () => alert("Error getting settings.")
     });
@@ -78,5 +79,25 @@ $("#encryptionTimeoutForm").submit(() => {
         error: () => alert("Error occurred during changing encryption timeout.")
     });
 
+    return false;
+});
+
+$("#historySnapshotTimeIntervalForm").submit(() => {
+    const historySnapshotTimeInterval = $("#historySnapshotTimeIntervalInSeconds").val();
+
+    $.ajax({
+        url: baseUrl + 'settings',
+        type: 'POST',
+        data: JSON.stringify({
+            name: 'history_snapshot_time_interval',
+            value: historySnapshotTimeInterval
+        }),
+        contentType: "application/json",
+        success: function () {
+            alert("History snapshot time interval has been changed.");
+         },
+        error: () => alert("Error occurred during changing history snapshot time interval.")
+    });
+
     return false;
 });