Add age filters to rules

README.md

@@ -17,7 +17,7 @@ message meets a specified criterion.
 - **Markdown conversion** – optionally convert HTML bodies to Markdown before sending them to the AI service.
 - **Debug logging** – optional colorized logs help troubleshoot interactions with the AI service.
 - **Light/Dark themes** – automatically match Thunderbird's appearance with optional manual override.
-- **Automatic rules** – create rules that tag, move, copy, forward, reply, delete, archive, mark read/unread or flag/unflag messages based on AI classification. Rules can optionally apply only to unread messages.
+- **Automatic rules** – create rules that tag, move, copy, forward, reply, delete, archive, mark read/unread or flag/unflag messages based on AI classification. Rules can optionally apply only to unread messages and can ignore messages outside a chosen age range.
 - **Rule ordering** – drag rules to prioritize them and optionally stop processing after a match.
 - **Context menu** – apply AI rules from the message list or the message display action button.
 - **Status icons** – toolbar icons show when classification is in progress and briefly display success or error states.
@@ -72,7 +72,8 @@ Sortana is implemented entirely with standard WebExtension scripts—no custom e
 2. Use the **Classification Rules** section to add a criterion and optional
    actions such as tagging, moving, copying, forwarding, replying,
    deleting or archiving a message when it matches. Drag rules to
-   reorder them, check *Only apply to unread messages* to skip read mail, and
+   reorder them, check *Only apply to unread messages* to skip read mail,
+   set optional minimum or maximum message age limits, and
    check *Stop after match* to halt further processing. Forward and reply actions
    open a compose window using the account that received the message.
 3. Save your settings. New mail will be evaluated automatically using the

background.js

@@ -41,6 +41,8 @@ function normalizeRules(rules) {
         const rule = { criterion: r.criterion, actions };
         if (r.stopProcessing) rule.stopProcessing = true;
         if (r.unreadOnly) rule.unreadOnly = true;
+        if (typeof r.minAgeDays === 'number') rule.minAgeDays = r.minAgeDays;
+        if (typeof r.maxAgeDays === 'number') rule.maxAgeDays = r.maxAgeDays;
         return rule;
     }) : [];
 }
@@ -229,6 +231,18 @@ async function processMessage(id) {
             if (rule.unreadOnly && alreadyRead) {
                 continue;
             }
+            if (hdr && (typeof rule.minAgeDays === 'number' || typeof rule.maxAgeDays === 'number')) {
+                const msgTime = new Date(hdr.date).getTime();
+                if (!isNaN(msgTime)) {
+                    const ageDays = (Date.now() - msgTime) / 86400000;
+                    if (typeof rule.minAgeDays === 'number' && ageDays < rule.minAgeDays) {
+                        continue;
+                    }
+                    if (typeof rule.maxAgeDays === 'number' && ageDays > rule.maxAgeDays) {
+                        continue;
+                    }
+                }
+            }
             const cacheKey = await AiClassifier.buildCacheKey(id, rule.criterion);
             const matched = await AiClassifier.classifyText(text, rule.criterion, cacheKey);
             if (matched) {

options/options.js

@@ -355,12 +355,30 @@ document.addEventListener('DOMContentLoaded', async () => {
             unreadLabel.appendChild(unreadCheck);
             unreadLabel.append(' Only apply to unread messages');
 
+            const ageBox = document.createElement('div');
+            ageBox.className = 'field is-grouped mt-2';
+            const minInput = document.createElement('input');
+            minInput.type = 'number';
+            minInput.placeholder = 'Min days';
+            minInput.className = 'input is-small min-age mr-2';
+            minInput.style.width = '6em';
+            if (typeof rule.minAgeDays === 'number') minInput.value = rule.minAgeDays;
+            const maxInput = document.createElement('input');
+            maxInput.type = 'number';
+            maxInput.placeholder = 'Max days';
+            maxInput.className = 'input is-small max-age';
+            maxInput.style.width = '6em';
+            if (typeof rule.maxAgeDays === 'number') maxInput.value = rule.maxAgeDays;
+            ageBox.appendChild(minInput);
+            ageBox.appendChild(maxInput);
+
             const body = document.createElement('div');
             body.className = 'message-body';
             body.appendChild(actionsContainer);
             body.appendChild(addAction);
             body.appendChild(stopLabel);
             body.appendChild(unreadLabel);
+            body.appendChild(ageBox);
 
             article.appendChild(header);
             article.appendChild(body);
@@ -399,7 +417,12 @@ document.addEventListener('DOMContentLoaded', async () => {
             });
             const stopProcessing = ruleEl.querySelector('.stop-processing')?.checked;
             const unreadOnly = ruleEl.querySelector('.unread-only')?.checked;
-            return { criterion, actions, unreadOnly, stopProcessing };
+            const minAgeDays = parseFloat(ruleEl.querySelector('.min-age')?.value);
+            const maxAgeDays = parseFloat(ruleEl.querySelector('.max-age')?.value);
+            const rule = { criterion, actions, unreadOnly, stopProcessing };
+            if (!isNaN(minAgeDays)) rule.minAgeDays = minAgeDays;
+            if (!isNaN(maxAgeDays)) rule.maxAgeDays = maxAgeDays;
+            return rule;
         });
         data.push({ criterion: '', actions: [], unreadOnly: false, stopProcessing: false });
         renderRules(data);
@@ -414,6 +437,8 @@ document.addEventListener('DOMContentLoaded', async () => {
         const rule = { criterion: r.criterion, actions };
         if (r.stopProcessing) rule.stopProcessing = true;
         if (r.unreadOnly) rule.unreadOnly = true;
+        if (typeof r.minAgeDays === 'number') rule.minAgeDays = r.minAgeDays;
+        if (typeof r.maxAgeDays === 'number') rule.maxAgeDays = r.maxAgeDays;
         return rule;
     }));
 
@@ -557,7 +582,12 @@ document.addEventListener('DOMContentLoaded', async () => {
             });
             const stopProcessing = ruleEl.querySelector('.stop-processing')?.checked;
             const unreadOnly = ruleEl.querySelector('.unread-only')?.checked;
-            return { criterion, actions, unreadOnly, stopProcessing };
+            const minAgeDays = parseFloat(ruleEl.querySelector('.min-age')?.value);
+            const maxAgeDays = parseFloat(ruleEl.querySelector('.max-age')?.value);
+            const rule = { criterion, actions, unreadOnly, stopProcessing };
+            if (!isNaN(minAgeDays)) rule.minAgeDays = minAgeDays;
+            if (!isNaN(maxAgeDays)) rule.maxAgeDays = maxAgeDays;
+            return rule;
         }).filter(r => r.criterion);
         const stripUrlParams = stripUrlToggle.checked;
         const altTextImages = altTextToggle.checked;