support single scheduler item updates for Dashboard

src/web/WebSchedulerService.cpp

@@ -49,10 +49,10 @@ void WebSchedulerService::begin() {
 // and also calls when the Scheduler web page is refreshed
 void WebScheduler::read(WebScheduler & webScheduler, JsonObject root) {
     JsonArray schedule = root["schedule"].to<JsonArray>();
-    uint8_t   counter  = 0;
+    uint8_t   counter  = 1;
     for (const ScheduleItem & scheduleItem : webScheduler.scheduleItems) {
         JsonObject si = schedule.add<JsonObject>();
-        si["id"]      = counter++; // id is only used to render the table and must be unique
+        si["id"]      = counter++; // id is only used to render the table and must be unique. 0 is for Dashboard
         si["flags"]   = scheduleItem.flags;
         si["active"]  = scheduleItem.flags != SCHEDULEFLAG_SCHEDULE_IMMEDIATE ? scheduleItem.active : false;
         si["time"]    = scheduleItem.flags != SCHEDULEFLAG_SCHEDULE_IMMEDIATE ? scheduleItem.time : "";
@@ -65,13 +65,35 @@ void WebScheduler::read(WebScheduler & webScheduler, JsonObject root) {
 // call on initialization and also when the Schedule web page is saved
 // this loads the data into the internal class
 StateUpdateResult WebScheduler::update(JsonObject root, WebScheduler & webScheduler) {
+    // check if we're only toggling it on/off via the Dashboard
+    // if it is a single schedule object and id is 0
+    if (root["schedule"].is<JsonObject>()) {
+        JsonObject si = root["schedule"];
+        if (si["id"] == 0) {
+            // find the item, matching the name
+            for (ScheduleItem & scheduleItem : webScheduler.scheduleItems) {
+                std::string name = si["name"].as<std::string>();
+                if (scheduleItem.name == name) {
+                    scheduleItem.active = si["active"];
+                    EMSESP::webSchedulerService.publish(true);
+                    return StateUpdateResult::CHANGED;
+                }
+            }
+            return StateUpdateResult::UNCHANGED;
+        }
+    }
+
+    // otherwise we're updating and saving the whole list again
+    if (!root["schedule"].is<JsonArray>()) {
+        return StateUpdateResult::ERROR; // invalid format
+    }
+
     // reset the list
     Command::erase_device_commands(EMSdevice::DeviceType::SCHEDULER);
     webScheduler.scheduleItems.clear();
     EMSESP::webSchedulerService.ha_reset();
 
     // build up the list of schedule items
-    if (root["schedule"].is<JsonArray>()) {
     for (const JsonObject schedule : root["schedule"].as<JsonArray>()) {
         // create each schedule item, overwriting any previous settings
         // ignore the id (as this is only used in the web for table rendering)
@@ -99,7 +121,6 @@ StateUpdateResult WebScheduler::update(JsonObject root, WebScheduler & webSchedu
                 CommandFlag::ADMIN_ONLY);
         }
     }
-    }
 
     EMSESP::webSchedulerService.publish(true);
 
@@ -551,6 +572,19 @@ void WebSchedulerService::test() {
             si.elapsed_min = 0;
             si.retry_cnt   = 0xFF; // no startup retries
 
+            webScheduler.scheduleItems.push_back(si);
+
+            // test 2
+            si             = ScheduleItem();
+            si.active      = false;
+            si.flags       = 1;
+            si.time        = "13:00";
+            si.cmd         = "system/message";
+            si.value       = "20";
+            si.name        = ""; // to make sure its excluded from Dashboard
+            si.elapsed_min = 0;
+            si.retry_cnt   = 0xFF; // no startup retries
+
             webScheduler.scheduleItems.push_back(si);
             already_added = true;