added wifi scan to setup

fixed issues on index.html

tools/esp8266/ahoywifi.cpp

@@ -209,6 +209,26 @@ time_t ahoywifi::getNtpTime(void) {
 }
 
 
+//-----------------------------------------------------------------------------
+void ahoywifi::getAvailNetworks(JsonObject obj) {
+    JsonArray nets = obj.createNestedArray("networks");
+
+    int n = WiFi.scanComplete();
+    if(n == -2) {
+        WiFi.scanNetworks(true);
+    } else if(n) {
+        for (int i = 0; i < n; ++i) {
+            nets[i]["ssid"]   = WiFi.SSID(i);
+            nets[i]["rssi"]   = WiFi.RSSI(i);
+            nets[i]["hidden"] = WiFi.isHidden(i) ? true : false;
+        }
+        WiFi.scanDelete();
+        if(WiFi.scanComplete() == -2)
+            WiFi.scanNetworks(true);
+    }
+}
+
+
 //-----------------------------------------------------------------------------
 void ahoywifi::sendNTPpacket(IPAddress& address) {
     //DPRINTLN(DBG_VERBOSE, F("wifi::sendNTPpacket"));

tools/esp8266/ahoywifi.h

@@ -30,6 +30,7 @@ class ahoywifi {
         bool setupStation(uint32_t timeout);
         bool getApActive(void);
         time_t getNtpTime(void);
+        void getAvailNetworks(JsonObject obj);
 
     private:
         void sendNTPpacket(IPAddress& address);

tools/esp8266/app.cpp

@@ -604,6 +604,12 @@ bool app::getWifiApActive(void) {
 }
 
 
+//-----------------------------------------------------------------------------
+void app::getAvailNetworks(JsonObject obj) {
+    mWifi->getAvailNetworks(obj);
+}
+
+
 //-----------------------------------------------------------------------------
 void app::sendMqttDiscoveryConfig(void) {
     DPRINTLN(DBG_VERBOSE, F("app::sendMqttDiscoveryConfig"));

tools/esp8266/app.h

@@ -68,6 +68,7 @@ class app {
         void saveValues(void);
         void resetPayload(Inverter<>* iv);
         bool getWifiApActive(void);
+        void getAvailNetworks(JsonObject obj);
 
         uint8_t getIrqPin(void) {
             return mConfig.pinIrq;
@@ -171,7 +172,6 @@ class app {
         inline bool getSettingsValid(void) { return mSettingsValid; }
         inline bool getRebootRequestState(void) { return mShowRebootRequest; }
 
-
         HmSystemType *mSys;
         bool mShouldReboot;
         bool mFlagSendDiscoveryConfig;

tools/esp8266/defines.h

@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       5
-#define VERSION_PATCH       21
+#define VERSION_PATCH       22
 
 
 //-------------------------------------

tools/esp8266/html/api.js

@@ -68,6 +68,14 @@ function sel(name, opt, selId) {
     return e;
 }
 
+function opt(val, html) {
+    o = document.createElement('option');
+    o.value = val;
+    o.innerHTML = html;
+    e.appendChild(o);
+    return o;
+}
+
 function div(cl) {
     e = document.createElement('div');
     e.classList.add(...cl);

tools/esp8266/html/index.html

@@ -104,22 +104,26 @@
                     + ("0"+hrs).substr(-2) + ":"
                     + ("0"+min).substr(-2) + ":"
                     + ("0"+sec).substr(-2);
-                var dSpan = document.getElementById("date")
+                var dSpan = document.getElementById("date");
                 if(0 != obj["ts_now"])
                     dSpan.innerHTML = date.toLocaleString('de-DE');
                 else {
+                    dSpan.innerHTML = "";
                     var e = inp("set", "sync from browser", 0, ["btn"], "set", "button");
                     dSpan.appendChild(span("NTP timeserver unreachable. "));
                     dSpan.appendChild(e);
                     dSpan.appendChild(span("", ["span"], "apiResult"));
                     e.addEventListener("click", setTime);
                 }
-                document.getElementById("sunrise").innerHTML = sunrise.toLocaleString('de-DE');
-                document.getElementById("sunset").innerHTML = sunset.toLocaleString('de-DE');
                 
                 if(!obj["ts_sun_upd"]) {
-                    var elem = document.getElementById("sun");
-                    elem.parentNode.removeChild(elem);
+                    var e = document.getElementById("sun");
+                    if(null != e)
+                        e.parentNode.removeChild(e);
+                }
+                else {
+                    document.getElementById("sunrise").innerHTML = sunrise.toLocaleString('de-DE');
+                    document.getElementById("sunset").innerHTML = sunset.toLocaleString('de-DE');
                 }
             }
 

tools/esp8266/html/setup.html

@@ -36,6 +36,10 @@
                         <fieldset>
                             <legend class="des">WiFi</legend>
                             <p>Enter the credentials to your prefered WiFi station. After rebooting the device tries to connect with this information.</p>
+                            <label for="networks">Avail Networks</label>
+                            <select name="networks" id="networks" onChange="selNet()">
+                                <option value="-1">scanning ...</option>
+                            </select>
                             <label for="ssid">SSID</label>
                             <input type="text" name="ssid" class="text"/>
                             <label for="pwd">Password</label>
@@ -377,12 +381,35 @@
                     parseRadio(root["radio"]);
                     parseSerial(root["serial"]);
                 }
+                getAjax('/api/setup/networks', listNetworks);
+                window.setInterval("getAjax('/api/setup/networks', listNetworks)", 7000);
+            }
+
+            function listNetworks(root) {
+                if(root["networks"].length > 0) {
+                    var s = document.getElementById("networks");
+                    var i, l = s.options.length - 1;
+                    for(i = l; i >= 0; i--) {
+                        s.remove(i);
+                    }
+
+                    for(i = 0; i < root["networks"].length; i++) {
+                        s.appendChild(opt(root["networks"][i]["ssid"], root["networks"][i]["ssid"] + " (" + root["networks"][i]["rssi"] + " dBm)"));
+                    }
+                }
+            }
+
+            function selNet() {
+                var s = document.getElementById("networks");
+                var e = document.getElementsByName("ssid")[0];
+                e.value = s.value;
             }
             
             hiddenInput = document.getElementById("disclaimer")
             hiddenInput.value = sessionStorage.getItem("gDisclaimer");
 
             getAjax("/api/setup", parse);
+
         </script>
     </body>
 </html>

tools/esp8266/webApi.cpp

@@ -50,6 +50,7 @@ void webApi::onApi(AsyncWebServerRequest *request) {
     else if(path == "inverter/list")  getInverterList(root);
     else if(path == "index")          getIndex(root);
     else if(path == "setup")          getSetup(root);
+    else if(path == "setup/networks") getNetworks(root);
     else if(path == "live")           getLive(root);
     else if(path == "record/info")    getRecord(root, iv->getRecordStruct(InverterDevInform_All));
     else if(path == "record/alarm")   getRecord(root, iv->getRecordStruct(AlarmData));
@@ -291,6 +292,12 @@ void webApi::getSetup(JsonObject obj) {
 }
 
 
+//-----------------------------------------------------------------------------
+void webApi::getNetworks(JsonObject obj) {
+    mApp->getAvailNetworks(obj);
+}
+
+
 //-----------------------------------------------------------------------------
 void webApi::getLive(JsonObject obj) {
     getSystem(obj.createNestedObject(F("system")));

tools/esp8266/webApi.h

@@ -44,6 +44,7 @@ class webApi {
 
         void getIndex(JsonObject obj);
         void getSetup(JsonObject obj);
+        void getNetworks(JsonObject obj);
         void getLive(JsonObject obj);
         void getRecord(JsonObject obj, record_t<> *rec);