Added Melody Struct & Ajusted MQTT Subs and Deserialization

A new Melody Struct was added containing the melody's main attributes.
The MQTT Topic Subscriptions were updated to a more proper format.
Also added DEV_ID that corresponds to the device's ID or Serial Number.
Chnaged the Deserialization function to actually adjust the MelodyStruct's attributes.
Added basic play/stop functionality.

JSON_functions.hpp

@@ -1,26 +0,0 @@
-#pragma once
-
-void reconstr (String payload) {
-  JsonDocument doc;
-
-  DeserializationError error = deserializeJson(doc, payload);
-
-  if (error) {
-    Serial.print("deserializeJson() failed: ");
-    Serial.println(error.c_str());
-    return;
-  }
-
-  // EXAMPLE PAYLOAD. CHANGE THIS TO THE APPROPRIATE ONE.
-  int a = doc["a"];
-  bool b = doc["b"];
-  float c = doc["c"];
-  Serial.println("The payload received contains: ");
-  Serial.print("a: ");
-  Serial.print(a);
-  Serial.print("  b: ");
-  Serial.print(b);
-  Serial.print("  c: ");
-  Serial.println(c);
-  
-}

MQTT.hpp

@@ -5,8 +5,7 @@ const int MQTT_PORT = 1883;
 
 AsyncMqttClient mqttClient;
 
-String GetPayloadContent(char* data, size_t len)
-{
+String GetPayloadContent(char* data, size_t len) {
 	String content = "";
 	for(size_t i = 0; i < len; i++)
 	{
@@ -15,28 +14,51 @@ String GetPayloadContent(char* data, size_t len)
 	return content;
 }
 
-void SuscribeMqtt()
-{
-	uint16_t packetIdSub = mqttClient.subscribe("user123456/channel", 0);
-	Serial.print("Subscribing at QoS 2, packetId: ");
-	Serial.println(packetIdSub);
+void SuscribeMqtt() {
+
+    String topicPlayback = String("vesper/") + DEV_ID + "/control/playback";
+    String topicAddMelody = String("vesper/") + DEV_ID + "/control/add_melody";
+    
+    uint16_t control_id = mqttClient.subscribe(topicPlayback.c_str(), 2);
+    Serial.print("Subscribing to playback topic, QoS 2, packetId: ");
+    Serial.println(control_id);
+
+    // doesn't work yet: 
+    uint16_t add_melody_id = mqttClient.subscribe(topicAddMelody.c_str(), 2);
+    Serial.print("Subscribing to add_melody topic, QoS 2, packetId: ");
+    Serial.println(add_melody_id);
+	
+	
 }
 
-String payload;
-void PublishMqtt(unsigned long data)
-{
+void PublishMqtt(unsigned long data) {
+	
+	String topicData = String("vesper/") + DEV_ID + "/data";
+	
 	String payload = String(data);
-	mqttClient.publish("hello/world", 0, true, (char*)payload.c_str());
+	mqttClient.publish(topicData.c_str(), 0, true, (char*)payload.c_str());
+
 }
 
 void OnMqttReceived(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total)
 {
-	//Serial.print("Received on ");
-	//Serial.print(topic);
-	//Serial.print(": ");
 	
-	String content = GetPayloadContent(payload, len);
-  reconstr(content);
-	//Serial.print(content);
-	//Serial.println();
+	String topicPlayback = String("vesper/") + DEV_ID + "/control/playback";
+	String topicAddMelody = String("vesper/") + DEV_ID + "/control/add_melody"; // doesn't work yet.
+	
+	String payloadContent = String(payload).substring(0, len);
+	
+	if (String(topic) == topicPlayback) {
+      // Handle the playback command
+		  handleJSON(payload);
+  }
+  else if (String(topic) == topicAddMelody) {
+      // Handle adding melody
+      Serial.println("Adding melody...");
+      // You can call a function here to handle adding the melody
+  }
+  else {
+      // Handle unknown topics
+      Serial.println("Unknown topic received.");
+  }
 }

data/melody1.txt

@@ -0,0 +1 @@
+[0000000000000001,0000000000000000,0000000000000010,0000000000000000,0000000000000001,0100000000010010,0000000000000001,0000000000001010,0000000000000000,0000000000000001]

functions.hpp

@@ -0,0 +1,71 @@
+#pragma once
+
+extern volatile bool playing;
+
+
+void playback(JsonDocument doc){
+	if (doc["playback"].as<bool>()){
+		playing = true;
+		Serial.println("START Playback!");
+	}
+else if (doc["playback"].as<bool>()){ 
+		playing = false;
+		Serial.println("STOP Playback!");
+	}
+}
+
+void selectMelody(JsonDocument doc){
+	
+	melody.name = doc["name"].as<const char*>();      // Convert to std::string
+	melody.id = doc["id"].as<uint16_t>();
+	melody.duration = doc["duration"].as<uint32_t>();
+	melody.infinite_play = doc["infinite"].as<bool>();
+	melody.interval_duration = doc["inter_dur"].as<uint16_t>();
+	melody.speed = doc["speed"].as<uint8_t>();
+
+	Serial.printf("Name: %s, ID: %d, Duration: %lu, Inf: %s, Inter: %d, Speed: %d\n", 
+		melody.name.c_str(), 
+		melody.id, 
+		melody.duration, 
+		melody.infinite_play ? "true" : "false", 
+		melody.interval_duration, 
+		melody.speed);	
+		
+}
+
+void handleJSON(String payload) {
+	
+	JsonDocument doc;
+	DeserializationError error = deserializeJson(doc, payload);
+	
+	if (error) {
+		Serial.print("deserializeJson() failed: ");
+		Serial.println(error.c_str());
+		return;
+	}
+	
+	selectMelody(doc);
+	playback(doc);
+	
+}
+
+
+
+
+
+
+
+
+/*
+possible topics: 
+
+vesper/client-id/control
+	/play
+	/stop
+
+vesper/client-id/select_melody
+	
+vesper/client-id/update_melody
+
+vesper/client-id/add_melody
+*/

melody_handling.hpp

@@ -0,0 +1 @@
+// MELODY PLAYBACK WILL BE HANDLED HERE

vesper.ino

@@ -1,31 +1,55 @@
-#
-
 #include <WiFi.h>
 #include <AsyncMqttClient.h>
 #include <ArduinoJson.h>
+#include <FS.h>
+#include <SPIFFS.h>
+#include <string>
 
+#define DEV_ID "id-96638646"
+
+struct melody_attributes {
+  std::string name;                   // Contains the name of each Melody saved
+  uint16_t id;						  // The (internal) ID of the selected melody
+  uint32_t duration;                  // Indicates the total Duration in Minutes
+  bool infinite_play;                 // Infinite Loop Indicator (If True the melody will loop forever or until stoped, with pauses of "interval duration in between loops")
+  uint16_t interval_duration;         // Indicates the Duration of the Interval between finished loops, IF "inf" is true
+  uint8_t speed;                      // Indicates the Speed in 9 Steps. 1-9 (Steps can be adjusted in the bellEngine function)
+};
+
+melody_attributes melody;
+
+volatile bool playing = false;
+
+#include "functions.hpp"
 #include "config.h"  // Sustituir con datos de vuestra red
-#include "JSON_functions.hpp"
 #include "MQTT.hpp"
 #include "ESP32_Utils.hpp"
 #include "ESP32_Utils_MQTT_Async.hpp"
+#include "melody_handling.hpp"
 
 
 void setup()
 {
+  // Initialize Serial Communication (for debuggin)
 	Serial.begin(115200);
+  delay(50);
 
-	delay(500);
+  // Initialize SPIFFS
+  if (!SPIFFS.begin(true)) {  // 'true' means format SPIFFS if initialization fails
+    Serial.println("Failed to mount SPIFFS");
+    return;
+  }
+  Serial.println("SPIFFS mounted successfully");
+	delay(50);
   
+  // Initialize WiFi and MQTT
 	WiFi.onEvent(WiFiEvent);
 	InitMqtt();
-
 	ConnectWiFi_STA();
+  delay(1000);
+
 }
 
 void loop()
 {
-	// EXAMPLE PUBLISH. CHANGE THIS, IF NEEDED. 
-  //delay(1000);
-	//PublishMqtt(millis());
 }