add uuid to board

main/boards/common/board.cc

@@ -1,14 +1,46 @@
 #include "board.h"
 #include "system_info.h"
+#include "settings.h"
 #include "display/no_display.h"
 
 #include <esp_log.h>
 #include <esp_ota_ops.h>
 #include <esp_chip_info.h>
+#include <esp_random.h>
 
 #define TAG "Board"
 
 Board::Board() {
+    Settings settings("board", true);
+    uuid_ = settings.GetString("uuid");
+    if (uuid_.empty()) {
+        uuid_ = GenerateUuid();
+        settings.SetString("uuid", uuid_);
+    }
+    ESP_LOGI(TAG, "UUID: %s", uuid_.c_str());
+}
+
+std::string Board::GenerateUuid() {
+    // UUID v4 需要 16 字节的随机数据
+    uint8_t uuid[16];
+    
+    // 使用 ESP32 的硬件随机数生成器
+    esp_fill_random(uuid, sizeof(uuid));
+    
+    // 设置版本 (版本 4) 和变体位
+    uuid[6] = (uuid[6] & 0x0F) | 0x40;    // 版本 4
+    uuid[8] = (uuid[8] & 0x3F) | 0x80;    // 变体 1
+    
+    // 将字节转换为标准的 UUID 字符串格式
+    char uuid_str[37];
+    snprintf(uuid_str, sizeof(uuid_str),
+        "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+        uuid[0], uuid[1], uuid[2], uuid[3],
+        uuid[4], uuid[5], uuid[6], uuid[7],
+        uuid[8], uuid[9], uuid[10], uuid[11],
+        uuid[12], uuid[13], uuid[14], uuid[15]);
+    
+    return std::string(uuid_str);
 }
 
 bool Board::GetBatteryLevel(int &level, bool& charging) {
@@ -28,10 +60,12 @@ Led* Board::GetLed() {
 std::string Board::GetJson() {
     /* 
         {
+            "version": 2,
             "flash_size": 4194304,
             "psram_size": 0,
             "minimum_free_heap_size": 123456,
             "mac_address": "00:00:00:00:00:00",
+            "uuid": "00000000-0000-0000-0000-000000000000",
             "chip_model_name": "esp32s3",
             "chip_info": {
                 "model": 1,
@@ -57,13 +91,18 @@ std::string Board::GetJson() {
             ],
             "ota": {
                 "label": "ota_0"
+            },
+            "board": {
+                ...
             }
         }
     */
     std::string json = "{";
+    json += "\"version\":2,";
     json += "\"flash_size\":" + std::to_string(SystemInfo::GetFlashSize()) + ",";
     json += "\"minimum_free_heap_size\":" + std::to_string(SystemInfo::GetMinimumFreeHeapSize()) + ",";
     json += "\"mac_address\":\"" + SystemInfo::GetMacAddress() + "\",";
+    json += "\"uuid\":\"" + uuid_ + "\",";
     json += "\"chip_model_name\":\"" + SystemInfo::GetChipModelName() + "\",";
     json += "\"chip_info\":{";
 

main/boards/common/board.h

@@ -20,6 +20,10 @@ private:
 
 protected:
     Board();
+    std::string GenerateUuid();
+
+    // 软件生成的设备唯一标识
+    std::string uuid_;
 
 public:
     static Board& GetInstance() {
@@ -29,6 +33,7 @@ public:
 
     virtual ~Board() = default;
     virtual std::string GetBoardType() = 0;
+    virtual std::string GetUuid() { return uuid_; }
     virtual Led* GetLed();
     virtual AudioCodec* GetAudioCodec() = 0;
     virtual Display* GetDisplay();