Show several hints and tips at Live View

This contains the following information:
* No connection to the NRF module possible
* No time set
* Default password used

src/WebApi_ws_live.cpp

@@ -5,6 +5,7 @@
 #include "WebApi_ws_live.h"
 #include "AsyncJson.h"
 #include "Configuration.h"
+#include "defaults.h"
 
 WebApiWsLiveClass::WebApiWsLiveClass()
     : _ws("/livedata")
@@ -150,6 +151,16 @@ void WebApiWsLiveClass::generateJsonResponse(JsonVariant& root)
     addTotalField(totalObj, "Power", totalPower, "W", 1);
     addTotalField(totalObj, "YieldDay", totalYieldDay, "Wh", 0);
     addTotalField(totalObj, "YieldTotal", totalYieldTotal, "kWh", 2);
+
+    JsonObject hintObj = root.createNestedObject("hints");
+    struct tm timeinfo;
+    hintObj[F("time_sync")] = !getLocalTime(&timeinfo, 5);
+    hintObj[F("radio_problem")] = (!Hoymiles.getRadio()->isConnected() || !Hoymiles.getRadio()->isPVariant());
+    if (!strcmp(Configuration.get().Security_Password, ACCESS_POINT_PASSWORD)) {
+        hintObj[F("default_password")] = true;
+    } else {
+        hintObj[F("default_password")] = false;
+    }
 }
 
 void WebApiWsLiveClass::addField(JsonObject& root, uint8_t idx, std::shared_ptr<InverterAbstract> inv, uint8_t channel, uint8_t fieldId, String topic)

webapp/src/components/HintView.vue

@@ -0,0 +1,50 @@
+<template>
+    <BootstrapAlert :show="hints.radio_problem" variant="danger">
+        <BIconBroadcast class="fs-4" /> Could not connect to a correct NRF24L01+ radio module. Please check the wiring.
+    </BootstrapAlert>
+
+    <BootstrapAlert :show="hints.time_sync" variant="danger">
+        <BIconClock class="fs-4" /> The clock has not yet been synchronised. Without a
+        correctly set clock, no requests are made to the inverter. This is normal shortly after the start. However,
+        after a longer runtime (>1 minute), it indicates that the NTP server is not accessible. <a
+            @click="gotoTimeSettings" href="#" class="alert-link">Please check your time
+            settings.</a>
+    </BootstrapAlert>
+
+    <BootstrapAlert :show="hints.default_password" variant="danger">
+        <BIconExclamationCircle class="fs-4" /> You are using the default password for the web interface and the
+        emergency access point. This is potentially insecure. <a @click="gotoPasswordSettings" href="#"
+            class="alert-link">Please change the password.</a>
+    </BootstrapAlert>
+</template>
+
+<script lang="ts">
+import { defineComponent, type PropType } from 'vue';
+import type { Hints } from '@/types/LiveDataStatus';
+import BootstrapAlert from '@/components/BootstrapAlert.vue';
+import {
+    BIconClock,
+    BIconExclamationCircle,
+    BIconBroadcast,
+} from 'bootstrap-icons-vue';
+
+export default defineComponent({
+    components: {
+        BootstrapAlert,
+        BIconClock,
+        BIconExclamationCircle,
+        BIconBroadcast,
+    },
+    props: {
+        hints: { type: Object as PropType<Hints>, required: true },
+    },
+    methods: {
+        gotoTimeSettings() {
+            this.$router.push("/settings/ntp");
+        },
+        gotoPasswordSettings() {
+            this.$router.push("/settings/security");
+        }
+    }
+});
+</script>

webapp/src/types/LiveDataStatus.ts

@@ -38,7 +38,14 @@ export interface Total {
     YieldTotal: ValueObject;
 };
 
+export interface Hints {
+    time_sync: boolean;
+    default_password: boolean;
+    radio_problem: boolean;
+};
+
 export interface LiveData {
     inverters: Inverter[];
     total: Total;
+    hints: Hints;
 }

webapp/src/views/HomeView.vue

@@ -1,5 +1,6 @@
 <template>
     <BasePage :title="'Live Data'" :isLoading="dataLoading" :isWideScreen="true">
+        <HintView :hints="liveData.hints" />
         <InverterTotalInfo :totalData="liveData.total" /><br />
         <div class="row gy-3">
             <div class="col-sm-3 col-md-2" :style="[inverterData.length == 1 ? { 'display': 'none' } : {}]">
@@ -335,6 +336,7 @@ import DevInfo from '@/components/DevInfo.vue';
 import BootstrapAlert from '@/components/BootstrapAlert.vue';
 import InverterChannelInfo from "@/components/InverterChannelInfo.vue";
 import InverterTotalInfo from '@/components/InverterTotalInfo.vue';
+import HintView from '@/components/HintView.vue';
 import type { DevInfoStatus } from '@/types/DevInfoStatus';
 import type { EventlogItems } from '@/types/EventlogStatus';
 import type { LiveData, Inverter } from '@/types/LiveDataStatus';
@@ -348,6 +350,7 @@ export default defineComponent({
         BasePage,
         InverterChannelInfo,
         InverterTotalInfo,
+        HintView,
         EventLog,
         DevInfo,
         BootstrapAlert,