Add build scripts and API calls for WebUI

platformio.ini

@@ -20,6 +20,8 @@ monitor_filters = esp32_exception_decoder, colorize
 board_build.filesystem = littlefs
 board_build.partitions = partition.csv
 build_flags = 
+  !python scripts/git_rev.py
+  -DLAST_BUILD_TIME=$UNIX_TIME
 lib_deps = 
     zinggjm/GxEPD2@^1.5.6
     https://github.com/tzapu/WiFiManager.git#v2.0.17

scripts/git_rev.py

@@ -0,0 +1,8 @@
+import subprocess
+
+revision = (
+    subprocess.check_output(["git", "rev-parse", "HEAD"])
+    .strip()
+    .decode("utf-8")
+)
+print("'-DGIT_REV=\"%s\"'" % revision)

src/config.cpp

@@ -38,6 +38,11 @@ void setupPreferences()
   {
     preferences.putString(SETTING_CURRENCY, CURRENCY_USD);
   }
+
+  if (!preferences.isKey(SETTING_HOSTNAME_PREFIX))
+  {
+    preferences.putString(SETTING_HOSTNAME_PREFIX, "oc");
+  }
 }
 
 void setupWifi()
@@ -221,3 +226,4 @@ void OTAUpdateTask(void *pvParameters) {
     vTaskDelay(1000 / portTICK_PERIOD_MS); // Delay to avoid high CPU usage
   }
 }
+

src/epd.cpp

@@ -9,6 +9,10 @@ String currentRow1 = "";
 String currentRow2 = "";
 String currentRow3 = "";
 
+char currentIcon1;
+char currentIcon2;
+char currentIcon3;
+
 void setupDisplay()
 {
   display.init(0, true);
@@ -60,8 +64,11 @@ void setupDisplay()
   // display.display(true);
 }
 
-void updateRow2(String c)
+void updateRow2(String c, char icon)
 {
+  if (c.equals(currentRow2) && icon == currentIcon2)
+    return;
+
   display.setRotation(1);
   display.setFont(&ROW2_FONT);
   display.setTextColor(GxEPD_BLACK);
@@ -82,17 +89,23 @@ void updateRow2(String c)
 
     display.setFont(&ROW2_ICONFONT);
     display.setCursor(x, y);
-    display.print(ICON_BLOCK);
+    display.print(icon);
 
     display.setFont(&ROW2_FONT);
     display.setCursor(x + ROW2_ICONWIDTH, y);
     display.print(c);
   } while (display.nextPage());
   //  display.display(true);
+
+  currentRow2 = c;
+  currentIcon2 = icon;
 }
 
-void updateRow3(String c)
+void updateRow3(String c, char icon)
 {
+  if (c.equals(currentRow3) && icon == currentIcon3)
+    return;
+
   display.setRotation(1);
   display.setFont(&LibreFranklin_SemiBold15pt7b);
   display.setTextColor(GxEPD_WHITE);
@@ -114,13 +127,16 @@ void updateRow3(String c)
 
     display.setFont(&orangeclock_icons15pt7b);
     display.setCursor(x, y);
-    display.print(ICON_SATS);
+    display.print(icon);
 
     display.setFont(&LibreFranklin_SemiBold15pt7b);
 
     display.setCursor(x + ROW3_ICONWIDTH, y);
     display.print(c);
   } while (display.nextPage());
+
+  currentRow3 = c;
+  currentIcon3 = icon;
 }
 
 void showSetupText(String t)
@@ -133,7 +149,7 @@ void showSetupText(String t)
   // center the bounding box by transposition of the origin:
   uint16_t x = ((display.width() - (tbw)) / 2) - tbx;
   uint16_t y = ((display.height() - tbh) / 2) - tby;
-
+  display.setFullWindow();
   display.firstPage();
   do
   {
@@ -147,8 +163,11 @@ void showSetupText(String t)
   } while (display.nextPage());
 }
 
-void updateRow1(String c)
+void updateRow1(String c, char icon)
 {
+  if (c.equals(currentRow1) && icon == currentIcon1)
+    return;
+
   // struct tm timeinfo;
   // if (!getLocalTime(&timeinfo))
   // {
@@ -180,13 +199,16 @@ void updateRow1(String c)
 
     display.setFont(&ROW1_ICONFONT);
     display.setCursor(x, y);
-    display.print(ICON_PIE);
+    display.print(icon);
 
     display.setFont(&ROW1_FONT);
 
     display.setCursor(x + ROW1_ICONWIDTH, y);
     display.print(c);
   } while (display.nextPage());
+
+  currentRow1 = c;
+  currentIcon1 = icon;
 }
 
 void updateRows(String row1Content, String row2Content, String row3Content)

src/epd.hpp

@@ -6,7 +6,7 @@
 void setupDisplay();
 
 void showSetupText(String t);
-void updateRow1(String c);
-void updateRow2(String c);
-void updateRow3(String c);
+void updateRow1(String c, char icon);
+void updateRow2(String c, char icon);
+void updateRow3(String c, char icon);
 void updateRows(String row1Content, String row2Content, String row3Content);

src/main.cpp

@@ -21,7 +21,7 @@ GxEPD2_BW<EPD_CLASS, EPD_CLASS::HEIGHT> display = EPD_CLASS(4, 2, 3, 1);
 GxEPD2_BW<EPD_CLASS, EPD_CLASS::HEIGHT> display = EPD_CLASS(5, 3, 2, 1);
 #endif
 
-typedef void (*MethodPtr)(String);
+typedef void (*MethodPtr)(String, char);
 
 MethodPtr methods[] = {nullptr, updateRow1, updateRow2, updateRow3};
 
@@ -96,35 +96,40 @@ void loop()
   for (uint i = 1; i <= 3; i++)
   {
     String rowContent = "";
+    char icon;
     char keyName[5];
     snprintf(keyName, sizeof(keyName), "row%d", i);
-    Serial.print(keyName);
-    Serial.print(" ");
-    Serial.println(preferences.getUInt(keyName));
     switch (preferences.getUInt(keyName))
     {
     case LINE_BLOCKHEIGHT:
+      icon = ICON_BLOCK;
       rowContent = getBlock();
       break;
     case LINE_MEMPOOL_FEES:
+      icon = ICON_PIE;
       rowContent = getMempoolFees();
       break;
     case LINE_MEMPOOL_FEES_MEDIAN:
+      icon = ICON_PIE;
       rowContent = "NOT IMPL";
       break;
     case LINE_HALVING_COUNTDOWN:
+      icon = ICON_HOURGLASS;
       rowContent = "NOT IMPL";
       break;
     case LINE_SATSPERUNIT:
     {
+      icon = ICON_SATS;
       uint satsPerDollar = int(round(1 / float(getPrice()) * 10e7));
       rowContent = satsPerDollar;
       break;
     }
     case LINE_FIATPRICE:
+      icon = ICON_DOLLAR;
       rowContent = getPrice();
       break;
     case LINE_MARKETCAP:
+      icon = ICON_GLOBE;
       rowContent = "NOT IMPL";
       break;
     case LINE_TIME:
@@ -137,7 +142,7 @@ void loop()
       rowContent = "DEFAULT";
     }
 
-    methods[i](rowContent);
+    methods[i](rowContent, icon);
   }
 
   // String block = String(getBlock());

src/shared.cpp

@@ -0,0 +1,13 @@
+#include "shared.hpp"
+
+String getMyHostname()
+{
+  uint8_t mac[6];
+  // WiFi.macAddress(mac);
+  esp_efuse_mac_get_default(mac);
+  char hostname[15];
+  String hostnamePrefix = preferences.getString(SETTING_HOSTNAME_PREFIX);
+  snprintf(hostname, sizeof(hostname), "%s-%02x%02x%02x", hostnamePrefix,
+           mac[3], mac[4], mac[5]);
+  return hostname;
+}

src/shared.hpp

@@ -37,29 +37,30 @@
  #define SETUPFONT LibreFranklin_SemiBold12pt7b
 #endif
 
-#define ICON_BLOCK "A"
-#define ICON_EURO "B"
-#define ICON_POUND "C"
-#define ICON_YEN "D"
-#define ICON_DOLLAR "E"
-#define ICON_PIE "F"
-#define ICON_GLOBE "G"
-#define ICON_HOURGLASS "H"
-#define ICON_LIGHTNING "I"
-#define ICON_REFRESH "J"
-#define ICON_NUCLEAR "K"
-#define ICON_SATS "L"
-#define ICON_SATUSD "M"
-#define ICON_SETTINGS "N"
-#define ICON_WIFI "O"
-#define ICON_CROSS "P"
-#define ICON_CHECK "Q"
-#define ICON_WARNING "R"
+#define ICON_BLOCK 'A'
+#define ICON_EURO 'B'
+#define ICON_POUND 'C'
+#define ICON_YEN 'D'
+#define ICON_DOLLAR 'E'
+#define ICON_PIE 'F'
+#define ICON_GLOBE 'G'
+#define ICON_HOURGLASS 'H'
+#define ICON_LIGHTNING 'I'
+#define ICON_REFRESH 'J'
+#define ICON_NUCLEAR 'K'
+#define ICON_SATS 'L'
+#define ICON_SATUSD 'M'
+#define ICON_SETTINGS 'N'
+#define ICON_WIFI 'O'
+#define ICON_CROSS 'P'
+#define ICON_CHECK 'Q'
+#define ICON_WARNING 'R'
 
 #define SETTING_ROW1_CONTENT "row1"
 #define SETTING_ROW2_CONTENT "row2"
 #define SETTING_ROW3_CONTENT "row3"
 #define SETTING_CURRENCY "currency"
+#define SETTING_HOSTNAME_PREFIX "hostnamePrefix"
 
 const int LINE_BLOCKHEIGHT = 0;
 const int LINE_MEMPOOL_FEES = 1;
@@ -83,3 +84,13 @@ extern WiFiClientSecure client;
 extern GxEPD2_BW<EPD_CLASS, EPD_CLASS::HEIGHT> display;
 extern Preferences preferences;
 extern bool isUpdating;
+
+extern String currentRow1;
+extern String currentRow2;
+extern String currentRow3;
+
+extern char currentIcon1;
+extern char currentIcon2;
+extern char currentIcon3;
+
+String getMyHostname();

src/webserver.cpp

@@ -13,6 +13,7 @@ void setupWebserver()
     Serial.println(F("An Error has occurred while mounting LittleFS"));
   }
 
+  server.on("/api/status", HTTP_GET, onApiStatus);
   server.on("/api/settings", HTTP_GET, onApiSettingsGet);
   AsyncCallbackJsonWebHandler *settingsPatchHandler =
       new AsyncCallbackJsonWebHandler("/api/json/settings", onApiSettingsPatch);
@@ -31,6 +32,31 @@ void setupWebserver()
   server.begin();
 }
 
+void onApiStatus(AsyncWebServerRequest *request)
+{
+  JsonDocument root;
+
+  root["row1"] = currentRow1;
+  root["row2"] = currentRow2;
+  root["row3"] = currentRow3;
+
+  root["icon1"] = String(currentIcon1);
+  root["icon2"] = String(currentIcon2);
+  root["icon3"] = String(currentIcon3);
+
+  root["espUptime"] = esp_timer_get_time() / 1000000;
+  root["espFreeHeap"] = ESP.getFreeHeap();
+  root["espHeapSize"] = ESP.getHeapSize();
+
+  root["rssi"] = WiFi.RSSI();
+
+  AsyncResponseStream *response =
+      request->beginResponseStream("application/json");
+  serializeJson(root, *response);
+
+  request->send(response);
+}
+
 void onApiSettingsGet(AsyncWebServerRequest *request)
 {
   JsonDocument root;
@@ -49,6 +75,17 @@ void onApiSettingsGet(AsyncWebServerRequest *request)
     root[setting] = preferences.getBool(setting.c_str());
   }
 
+  root["hostname"] = getMyHostname();
+  root["ip"] = WiFi.localIP();
+  root["txPower"] = WiFi.getTxPower();
+
+#ifdef GIT_REV
+  root["gitRev"] = String(GIT_REV);
+#endif
+#ifdef LAST_BUILD_TIME
+  root["lastBuildTime"] = String(LAST_BUILD_TIME);
+#endif
+
   AsyncResponseStream *response =
       request->beginResponseStream("application/json");
   serializeJson(root, *response);

src/webserver.hpp

@@ -9,6 +9,8 @@
 
 void setupWebserver();
 
+void onApiStatus(AsyncWebServerRequest *request);
+
 void onApiSettingsGet(AsyncWebServerRequest *request);
 void onApiSettingsPatch(AsyncWebServerRequest *request, JsonVariant &json);