Added Telemetry data report to the App

vesper/src/Telemetry/Telemetry.cpp

@@ -1,4 +1,5 @@
 #include "Telemetry.hpp"
+#include <ArduinoJson.h>
 
 void Telemetry::begin() {
     // Initialize arrays
@@ -10,6 +11,9 @@ void Telemetry::begin() {
 
     coolingActive = false;
 
+    // Load strike counters from SD if available
+    loadStrikeCounters();
+
     // Create the telemetry task
     xTaskCreatePinnedToCore(telemetryTask, "TelemetryTask", 4096, this, 2, &telemetryTaskHandle, 1);
 
@@ -21,6 +25,11 @@ void Telemetry::setPlayerReference(bool* isPlayingPtr) {
     LOG_DEBUG("Player reference set");
 }
 
+void Telemetry::setFileManager(FileManager* fm) {
+    fileManager = fm;
+    LOG_DEBUG("FileManager reference set");
+}
+
 void Telemetry::setForceStopCallback(void (*callback)()) {
     forceStopCallback = callback;
     LOG_DEBUG("Force stop callback set");
@@ -175,6 +184,62 @@ void Telemetry::telemetryTask(void* parameter) {
     }
 }
 
+// ════════════════════════════════════════════════════════════════════════════
+// STRIKE COUNTER PERSISTENCE
+// ════════════════════════════════════════════════════════════════════════════
+
+void Telemetry::saveStrikeCounters() {
+    if (!fileManager) {
+        LOG_WARNING("Cannot save strike counters: FileManager not set");
+        return;
+    }
+    
+    StaticJsonDocument<512> doc;
+    JsonArray counters = doc.createNestedArray("strikeCounters");
+    
+    // Thread-safe read of strike counters
+    portENTER_CRITICAL(&telemetrySpinlock);
+    for (uint8_t i = 0; i < 16; i++) {
+        counters.add(strikeCounters[i]);
+    }
+    portEXIT_CRITICAL(&telemetrySpinlock);
+    
+    if (fileManager->writeJsonFile("/telemetry_data.json", doc)) {
+        LOG_INFO("Strike counters saved to SD card");
+    } else {
+        LOG_ERROR("Failed to save strike counters to SD card");
+    }
+}
+
+void Telemetry::loadStrikeCounters() {
+    if (!fileManager) {
+        LOG_WARNING("Cannot load strike counters: FileManager not set");
+        return;
+    }
+    
+    StaticJsonDocument<512> doc;
+    
+    if (!fileManager->readJsonFile("/telemetry_data.json", doc)) {
+        LOG_INFO("No previous strike counter data found, starting fresh");
+        return;
+    }
+    
+    JsonArray counters = doc["strikeCounters"];
+    if (counters.isNull()) {
+        LOG_WARNING("Invalid telemetry data format");
+        return;
+    }
+    
+    // Thread-safe write of strike counters
+    portENTER_CRITICAL(&telemetrySpinlock);
+    for (uint8_t i = 0; i < 16 && i < counters.size(); i++) {
+        strikeCounters[i] = counters[i].as<uint32_t>();
+    }
+    portEXIT_CRITICAL(&telemetrySpinlock);
+    
+    LOG_INFO("Strike counters loaded from SD card");
+}
+
 // ════════════════════════════════════════════════════════════════════════════
 // HEALTH CHECK IMPLEMENTATION
 // ════════════════════════════════════════════════════════════════════════════

vesper/src/Telemetry/Telemetry.hpp

@@ -57,6 +57,7 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "../Logging/Logging.hpp"
+#include "../FileManager/FileManager.hpp"
 
 class Telemetry {
 private:
@@ -71,6 +72,7 @@ private:
     
     // External references (to be set via setters)
     bool* playerIsPlayingPtr = nullptr;
+    FileManager* fileManager = nullptr;
     
     // Spinlock for critical sections
     portMUX_TYPE telemetrySpinlock = portMUX_INITIALIZER_UNLOCKED;
@@ -81,6 +83,7 @@ public:
     
     // Set external references
     void setPlayerReference(bool* isPlayingPtr);
+    void setFileManager(FileManager* fm);
     
     // Bell strike handling (call this on every hammer strike)
     void recordBellStrike(uint8_t bellIndex);
@@ -89,6 +92,10 @@ public:
     uint32_t getStrikeCount(uint8_t bellIndex);
     void resetStrikeCounters(); // User-requested reset
     
+    // Persistence methods
+    void saveStrikeCounters();
+    void loadStrikeCounters();
+    
     // Bell load management  
     uint16_t getBellLoad(uint8_t bellIndex);
     void setBellMaxLoad(uint8_t bellIndex, uint16_t maxLoad);