MVP

start_fresh.js

@@ -0,0 +1,43 @@
+// ===== START FRESH =====
+// This function is called when user clicks "Start Fresh" button
+// msg.payload should contain the old session_id to deactivate
+
+const oldSessionId = msg.payload;
+
+if (!oldSessionId) {
+    node.error("No session ID provided to deactivate");
+    return [null, null];
+}
+
+// Deactivate old session in database
+const deactivateMsg = {
+    topic: `
+        UPDATE session_state
+        SET is_active = 0, updated_at = ${Date.now()}
+        WHERE session_id = '${oldSessionId}';
+    `,
+    _mode: "deactivate-old-session"
+};
+
+// Clear all global context variables
+global.set("currentSessionId", null);
+global.set("productionStartTime", null);
+global.set("operatingTime", 0);
+global.set("trackingEnabled", false);
+global.set("cycleCount", 0);
+global.set("machineOnline", true);
+global.set("productionStarted", false);
+global.set("lastCycleTime", null);
+global.set("activeWorkOrder", null);
+flow.set("lastMachineState", 0);
+
+node.warn("Starting fresh - all session data cleared");
+
+msg._recoveryStatus = "fresh-start";
+msg.payload = {
+    success: true,
+    type: "success",
+    message: "Previous session discarded. System ready for new work orders."
+};
+
+return [deactivateMsg, msg];  // Output 1: DB update, Output 2: success message