From a5e41308febedf7291b5ccb116806fb2344ddc39 Mon Sep 17 00:00:00 2001
From: Mario Mariete <11509521+melkati@users.noreply.github.com>
Date: Fri, 10 May 2024 07:02:46 +0200
Subject: [PATCH] Add mainDeviceSelected field to CO2_Gadget_WIFI.h and update
 status.html to display the selected sensor

---
 CO2_Gadget_Preferences.h | 1 +
 CO2_Gadget_WIFI.h        | 3 ++-
 data/status.html         | 9 ++++++++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/CO2_Gadget_Preferences.h b/CO2_Gadget_Preferences.h
index ed2ec3df..ae5d9e52 100644
--- a/CO2_Gadget_Preferences.h
+++ b/CO2_Gadget_Preferences.h
@@ -292,6 +292,7 @@ void initPreferences() {
     displayReverse = preferences.getBool("displayReverse", false);
     showFahrenheit = preferences.getBool("showFahrenheit", false);
     measurementInterval = preferences.getUInt("measInterval", 10);
+    if (sampleInterval < 10) sampleInterval = 2;  // Minimum sample interval is 2 seconds
     sampleInterval = preferences.getUInt("sampInterval", 60);
     outputsModeRelay = preferences.getBool("outModeRelay", false);
     channelESPNow = preferences.getUInt("channelESPNow", ESPNOW_WIFI_CH);
diff --git a/CO2_Gadget_WIFI.h b/CO2_Gadget_WIFI.h
index 66ef6fe6..02dc2bd5 100644
--- a/CO2_Gadget_WIFI.h
+++ b/CO2_Gadget_WIFI.h
@@ -710,7 +710,8 @@ void WiFiStationDisconnected(WiFiEvent_t event, WiFiEventInfo_t info) {
 }
 
 String getCO2GadgetStatusAsJson() {
-    StaticJsonDocument<512> doc;
+    StaticJsonDocument<512> doc;    
+    doc["mainDeviceSelected"] = mainDeviceSelected;
     doc["CO2"] = co2;
     doc["Temperature"] = temp;
     doc["Humidity"] = hum;
diff --git a/data/status.html b/data/status.html
index c7c306f2..f3897db5 100644
--- a/data/status.html
+++ b/data/status.html
@@ -19,7 +19,9 @@
     </div>
 
     <div class="content">
-        <h1>Status Information</h1>
+        <div class="status-item" id="mainDeviceSelectedItem">
+            <span class="status-label">Sensor Selected:</span> <span id="mainDeviceSelected"></span>
+        </div>
         <div class="status-item" id="co2Item">
             <span class="status-label">CO2:</span> <span id="co2"></span>
         </div>
@@ -136,6 +138,11 @@ <h1>Status Information</h1>
                 .then(data => {
                     console.log('Fetching data successful!');
                     // Update DOM with status data
+                    if (data.mainDeviceSelected !== undefined) {
+                        document.getElementById('mainDeviceSelected').textContent = data.mainDeviceSelected;
+                    } else {
+                        document.getElementById('mainDeviceSelected').style.display = 'none';
+                    }
                     if (data.CO2 !== undefined) {
                         document.getElementById('co2').textContent = data.CO2;
                     } else {