Nostr data source implementation

data

@@ -1 +1 @@
-Subproject commit 2363d98965bb1fdbfdf5d130b41732f5b864e2d0
+Subproject commit ee4d6d88c76fa279e643faabf4216c88145e0b2c

platformio.ini

@@ -41,6 +41,7 @@ lib_deps =
     https://github.com/dsbaars/universal_pin
     https://github.com/dsbaars/GxEPD2#universal_pin
     https://github.com/tzapu/WiFiManager.git#v2.0.17
+    rblb/Nostrduino@^1.2.5
     
 [env:lolin_s3_mini]
 extends = btclock_base

src/lib/block_notify.cpp

@@ -172,7 +172,25 @@ void onWebsocketBlockMessage(esp_websocket_event_data_t *event_data)
       return;
     }
 
-    currentBlockHeight = block["height"].as<uint>();
+    processNewBlock(block["height"].as<uint>());
+  }
+  else if (doc.containsKey("mempool-blocks"))
+  {
+    JsonArray blockInfo = doc["mempool-blocks"].as<JsonArray>();
+
+    uint medianFee = (uint)round(blockInfo[0]["medianFee"].as<double>());
+
+    processNewBlockFee(medianFee);
+  }
+
+  doc.clear();
+}
+
+void processNewBlock(uint newBlockHeight) {
+  if (newBlockHeight < currentBlockHeight)
+    return;
+
+  currentBlockHeight = newBlockHeight;
 
     // Serial.printf("New block found: %d\r\n", block["height"].as<uint>());
     preferences.putUInt("blockHeight", currentBlockHeight);
@@ -210,20 +228,15 @@ void onWebsocketBlockMessage(esp_websocket_event_data_t *event_data)
       }
     }
 }
-  else if (doc.containsKey("mempool-blocks"))
-  {
-    JsonArray blockInfo = doc["mempool-blocks"].as<JsonArray>();
 
-    uint medianFee = (uint)round(blockInfo[0]["medianFee"].as<double>());
+void processNewBlockFee(uint newBlockFee) {
-
+  if (blockMedianFee == newBlockFee)
-    if (blockMedianFee == medianFee)
     {
-      doc.clear();
       return;
     }
 
     //  Serial.printf("New median fee: %d\r\n", medianFee);
-    blockMedianFee = medianFee;
+    blockMedianFee = newBlockFee;
 
     if (workQueue != nullptr)
     {
@@ -232,9 +245,6 @@ void onWebsocketBlockMessage(esp_websocket_event_data_t *event_data)
     }
 }
 
-  doc.clear();
-}
-
 uint getBlockHeight() { return currentBlockHeight; }
 
 void setBlockHeight(uint newBlockHeight)

src/lib/block_notify.hpp

@@ -31,6 +31,9 @@ bool isBlockNotifyConnected();
 void stopBlockNotify();
 void restartBlockNotify();
 
+void processNewBlock(uint newBlockHeight);
+void processNewBlockFee(uint newBlockFee);
+
 bool getBlockNotifyInit();
 uint getLastBlockUpdate();
 int getBlockFetch();

src/lib/config.cpp

@@ -48,7 +48,9 @@ void setup()
       {
         delay(1000);
       }
-    } else if (mcp1.digitalRead(1) == LOW) {
+    }
+    else if (mcp1.digitalRead(1) == LOW)
+    {
       preferences.clear();
       queueLedEffect(LED_EFFECT_WIFI_ERASE_SETTINGS);
       ESP.restart();
@@ -66,8 +68,16 @@ void setup()
   setupTasks();
   setupTimers();
 
+  if (preferences.getBool("useNostr", DEFAULT_USE_NOSTR))
+  {
+    setupNostrNotify();
+    setupNostrTask();
+  }
+  else
+  {
     xTaskCreate(setupWebsocketClients, "setupWebsocketClients", 8192, NULL,
                 tskIDLE_PRIORITY, NULL);
+  }
 
   setupButtonTask();
   setupOTA();
@@ -404,7 +414,8 @@ void setupHardware()
   Wire.beginTransmission(0x5C);
   byte error = Wire.endTransmission();
 
-   if (error == 0) {
+  if (error == 0)
+  {
     Serial.println(F("Found BH1750"));
     hasLuxSensor = true;
     bh1750.begin(BH1750::CONTINUOUS_LOW_RES_MODE, 0x5C);
@@ -742,14 +753,15 @@ void setupFrontlight()
   {
     preferences.putBool("flFlashOnUpd", DEFAULT_FL_FLASH_ON_UPDATE);
   }
-
 }
 
-float getLightLevel() {
+float getLightLevel()
+{
   return bh1750.readLightLevel();
 }
 
-bool hasLightLevel() {
+bool hasLightLevel()
+{
   return hasLuxSensor;
 }
 #endif
@@ -784,5 +796,3 @@ String getFsRev()
   fsHash.close();
   return ret;
 }
-
-

src/lib/config.hpp

@@ -16,6 +16,8 @@
 #include "lib/improv.hpp"
 #include "lib/led_handler.hpp"
 #include "lib/ota.hpp"
+#include "lib/nostr_notify.hpp"
+
 #include "lib/price_notify.hpp"
 #include "lib/screen_handler.hpp"
 #include "lib/shared.hpp"

src/lib/defaults.hpp

@@ -22,6 +22,10 @@
 #define DEFAULT_HOSTNAME_PREFIX "btclock"
 #define DEFAULT_MEMPOOL_INSTANCE "mempool.space"
 
+#define DEFAULT_USE_NOSTR false
+#define DEFAULT_NOSTR_NPUB "642317135fd4c4205323b9dea8af3270657e62d51dc31a657c0ec8aab31c6288"
+#define DEFAULT_NOSTR_RELAY "wss://nostr.dbtc.link"
+
 #define DEFAULT_SECONDS_BETWEEN_PRICE_UPDATE 30
 #define DEFAULT_MINUTES_FULL_REFRESH 60
 

src/lib/nostr_notify.cpp

@@ -0,0 +1,123 @@
+#include "nostr_notify.hpp"
+
+std::vector<nostr::NostrPool *> pools;
+nostr::Transport *transport;
+TaskHandle_t nostrTaskHandle = NULL;
+
+void setupNostrNotify()
+{
+    nostr::esp32::ESP32Platform::initNostr(false);
+
+    
+
+    try
+    {
+        transport = nostr::esp32::ESP32Platform::getTransport();
+        nostr::NostrPool *pool = new nostr::NostrPool(transport);
+        String relay = preferences.getString("nostrRelay");
+        String pubKey = preferences.getString("nostrPubKey");
+        pools.push_back(pool);
+        // Lets subscribe to the relay
+        String subId = pool->subscribeMany(
+            {relay},
+            {{// we set the filters here (see
+              // https://github.com/nostr-protocol/nips/blob/master/01.md#from-client-to-relay-sending-events-and-creating-subscriptions)
+              {"kinds", {"1"}},
+              {"authors", {pubKey}}}},
+            [&](const String &subId, nostr::SignedNostrEvent *event)
+            {
+                // Received events callback, we can access the event content with
+                // event->getContent() Here you should handle the event, for this
+                // test we will just serialize it and print to console
+                JsonDocument doc;
+                JsonArray arr = doc["data"].to<JsonArray>();
+                event->toSendableEvent(arr);
+                // Access the second element which is the object
+                JsonObject obj = arr[1].as<JsonObject>();
+
+                // Access the "tags" array
+                JsonArray tags = obj["tags"].as<JsonArray>();
+
+                // Flag to check if the tag was found
+                bool tagFound = false;
+                uint medianFee = 0;
+                String typeValue;
+
+                // Iterate over the tags array
+                for (JsonArray tag : tags)
+                {
+                    // Check if the tag is an array with two elements
+                    if (tag.size() == 2)
+                    {
+                        const char *key = tag[0];
+                        const char *value = tag[1];
+
+                        // Check if the key is "type" and the value is "priceUsd"
+                        if (strcmp(key, "type") == 0 && (strcmp(value, "priceUsd") == 0 || strcmp(value, "blockHeight") == 0))
+                        {
+                            typeValue = value;
+                            tagFound = true;
+                        }
+                        else if (strcmp(key, "medianFee") == 0)
+                        {
+                            medianFee = tag[1].as<uint>();
+                        }
+                    }
+                }
+                if (tagFound)
+                {
+                    if (typeValue.equals("priceUsd"))
+                    {
+                        processNewPrice(obj["content"].as<uint>());
+                    }
+                    else if (typeValue.equals("blockHeight"))
+                    {
+                        processNewBlock(obj["content"].as<uint>());
+                    }
+
+                    if (medianFee != 0)
+                    {
+                        processNewBlockFee(medianFee);
+                    }
+                }
+            },
+            [&](const String &subId, const String &reason)
+            {
+                // This is the callback that will be called when the subscription is
+                // closed
+                Serial.println("Subscription closed: " + reason);
+            },
+            [&](const String &subId)
+            {
+                // This is the callback that will be called when the subscription is
+                // EOSE
+                Serial.println("Subscription EOSE: " + subId);
+            });
+    }
+    catch (const std::exception &e)
+    {
+        Serial.println("Error: " + String(e.what()));
+    }
+}
+
+void nostrTask(void *pvParameters)
+{
+    int blockFetch = getBlockFetch();
+    processNewBlock(blockFetch);
+
+    while (1)
+    {
+        for (nostr::NostrPool *pool : pools)
+        {
+            // Run internal loop: refresh relays, complete pending connections, send
+            // pending messages
+            pool->loop();
+        }
+        vTaskDelay(pdMS_TO_TICKS(100));
+    }
+}
+
+void setupNostrTask()
+{
+    xTaskCreate(nostrTask, "nostrTask", 16384, NULL, 10, &nostrTaskHandle);
+}

src/lib/nostr_notify.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include "shared.hpp"
+
+#include <ArduinoJson.h>
+#include <esp32/ESP32Platform.h>
+#include <NostrEvent.h>
+#include <NostrPool.h>
+#include <Transport.h>
+#include <Utils.h>
+#include "price_notify.hpp"
+#include "block_notify.hpp"
+
+void setupNostrNotify();
+
+void nostrTask(void *pvParameters);
+void setupNostrTask();

src/lib/price_notify.cpp

@@ -97,6 +97,13 @@ void onWebsocketPriceMessage(esp_websocket_event_data_t *event_data)
   if (doc.containsKey("bitcoin"))
   {
     if (currentPrice != doc["bitcoin"].as<long>())
+    {
+      processNewPrice(doc["bitcoin"].as<long>());
+    }
+  }
+}
+
+void processNewPrice(uint newPrice)
 {
   uint minSecPriceUpd = preferences.getUInt(
       "minSecPriceUpd", DEFAULT_SECONDS_BETWEEN_PRICE_UPDATE);
@@ -106,8 +113,12 @@ void onWebsocketPriceMessage(esp_websocket_event_data_t *event_data)
       (currentTime - lastPriceUpdate) > minSecPriceUpd)
   {
     //   const unsigned long oldPrice = currentPrice;
-        currentPrice = doc["bitcoin"].as<uint>();
+    currentPrice = newPrice;
+    if (lastPriceUpdate == 0 ||
+        (currentTime - lastPriceUpdate) > 120)
+    {
       preferences.putUInt("lastPrice", currentPrice);
+    }
     lastPriceUpdate = currentTime;
     // if (abs((int)(oldPrice-currentPrice)) > round(0.0015*oldPrice)) {
     if (workQueue != nullptr && (getCurrentScreen() == SCREEN_BTC_TICKER ||
@@ -120,8 +131,6 @@ void onWebsocketPriceMessage(esp_websocket_event_data_t *event_data)
     //}
   }
 }
-  }
-}
 
 uint getLastPriceUpdate()
 {

src/lib/price_notify.hpp

@@ -17,6 +17,8 @@ void onWebsocketPriceMessage(esp_websocket_event_data_t *event_data);
 uint getPrice();
 void setPrice(uint newPrice);
 
+void processNewPrice(uint newPrice);
+
 bool isPriceNotifyConnected();
 void stopPriceNotify();
 void restartPriceNotify();

src/lib/webserver.cpp

@@ -442,7 +442,7 @@ void onApiSettingsPatch(AsyncWebServerRequest *request, JsonVariant &json)
                         settings["timePerScreen"].as<uint>() * 60);
   }
 
-  String strSettings[] = {"hostnamePrefix", "mempoolInstance"};
+  String strSettings[] = {"hostnamePrefix", "mempoolInstance", "nostrPubKey", "nostrRelay"};
 
   for (String setting : strSettings)
   {
@@ -477,7 +477,7 @@ void onApiSettingsPatch(AsyncWebServerRequest *request, JsonVariant &json)
   String boolSettings[] = {"fetchEurPrice", "ledTestOnPower", "ledFlashOnUpd",
                            "mdnsEnabled", "otaEnabled", "stealFocus",
                            "mcapBigChar", "useSatsSymbol", "useBlkCountdown",
-                           "suffixPrice", "disableLeds", "ownDataSource", "flAlwaysOn", "flFlashOnUpd", "mempoolSecure"};
+                           "suffixPrice", "disableLeds", "ownDataSource", "flAlwaysOn", "flFlashOnUpd", "mempoolSecure", "useNostr"};
 
   for (String setting : boolSettings)
   {
@@ -577,6 +577,7 @@ void onApiSettingsGet(AsyncWebServerRequest *request)
   root["mempoolInstance"] =
       preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
   root["mempoolSecure"] = preferences.getBool("mempoolSecure", DEFAULT_MEMPOOL_SECURE);
+  root["useNostr"] = preferences.getBool("useNostr", DEFAULT_USE_NOSTR);
   root["ledTestOnPower"] = preferences.getBool("ledTestOnPower", DEFAULT_LED_TEST_ON_POWER);
   root["ledFlashOnUpd"] = preferences.getBool("ledFlashOnUpd", DEFAULT_LED_FLASH_ON_UPD);
   root["ledBrightness"] = preferences.getUInt("ledBrightness", DEFAULT_LED_BRIGHTNESS);
@@ -596,6 +597,9 @@ void onApiSettingsGet(AsyncWebServerRequest *request)
   root["txPower"] = WiFi.getTxPower();
   root["ownDataSource"] = preferences.getBool("ownDataSource", DEFAULT_OWN_DATA_SOURCE);
 
+  root["nostrPubKey"] = preferences.getString("nostrPubKey", DEFAULT_NOSTR_NPUB);
+  root["nostrRelay"] = preferences.getString("nostrRelay", DEFAULT_NOSTR_RELAY);
+
 #ifdef HAS_FRONTLIGHT
   root["hasFrontlight"] = true;
   root["flMaxBrightness"] = preferences.getUInt("flMaxBrightness", DEFAULT_FL_MAX_BRIGHTNESS);