update data purging, re-enable channel selection

src/database/queries.js

@@ -95,7 +95,7 @@ const positionQueries = {
   `),
 
   deleteOldPositions: db.prepare(`
-    DELETE FROM positions WHERE timestamp < datetime('now', '-' || ? || ' days')
+    DELETE FROM positions WHERE timestamp < datetime('now', '-' || ? || ' hours')
   `),
 
   getPositionTrails: db.prepare(`
@@ -170,7 +170,7 @@ const messageQueries = {
   `),
 
   deleteOldMessages: db.prepare(`
-    DELETE FROM messages WHERE created_at < datetime('now', '-' || ? || ' days')
+    DELETE FROM messages WHERE created_at < datetime('now', '-' || ? || ' hours')
   `)
 };
 
@@ -199,7 +199,7 @@ const telemetryQueries = {
   `),
 
   deleteOldTelemetry: db.prepare(`
-    DELETE FROM telemetry WHERE timestamp < datetime('now', '-' || ? || ' days')
+    DELETE FROM telemetry WHERE timestamp < datetime('now', '-' || ? || ' hours')
   `)
 };
 

src/mqtt/client.js

@@ -344,10 +344,11 @@ class MeshtasticMQTTClient {
   }
 
   // Send a text message
-  async sendTextMessage(from, text) {
+  async sendTextMessage(from, text, channel=0) {
     try {
       const message = JSON.stringify({
         from: from,
+        channel: channel,
         type: 'sendtext',
         payload: text
       });

src/routes/api.js

@@ -169,13 +169,13 @@ router.get('/messages/node/:nodeId', requireAuth, (req, res) => {
 // Send a message
 router.post('/messages/send', requireAuth, async (req, res) => {
   try {
-    const { text, from } = req.body;
+    const { from, text, channel } = req.body;
 
     if (!text) {
       return res.status(400).json({ error: 'Message text required' });
     }
 
-    await mqttClient.sendTextMessage(text, from || 0);
+    await mqttClient.sendTextMessage(from, text, channel);
 
     // Log activity
     logActivity(req.session.userId, 'send_message', text, req.ip);
@@ -224,20 +224,24 @@ router.get('/stats', requireAuth, (req, res) => {
 // Purge old data
 router.post('/purge', requireAuth, (req, res) => {
   try {
-    const { days } = req.body;
-    const daysToKeep = days || 30;
+    const { hours } = req.body;
+    const hoursToKeep = hours || 720; // Default to 30 days (720 hours)
 
-    const messagesDeleted = messageQueries.deleteOldMessages.run(daysToKeep);
-    const positionsDeleted = positionQueries.deleteOldPositions.run(daysToKeep);
-    const telemetryDeleted = telemetryQueries.deleteOldTelemetry.run(daysToKeep);
+    const messagesDeleted = messageQueries.deleteOldMessages.run(hoursToKeep);
+    const positionsDeleted = positionQueries.deleteOldPositions.run(hoursToKeep);
+    const telemetryDeleted = telemetryQueries.deleteOldTelemetry.run(hoursToKeep);
 
     logger.info(`Data purged: ${messagesDeleted.changes} messages, ${positionsDeleted.changes} positions, ${telemetryDeleted.changes} telemetry records`);
 
     // Log activity
+    const timePeriod = hoursToKeep < 24
+      ? `${hoursToKeep} hour${hoursToKeep !== 1 ? 's' : ''}`
+      : `${hoursToKeep / 24} day${hoursToKeep / 24 !== 1 ? 's' : ''}`;
+
     logActivity(
       req.session.userId,
       'purge_data',
-      `Purged data older than ${daysToKeep} days`,
+      `Purged data older than ${timePeriod}`,
       req.ip
     );