//
// Created by misaki on 2025/9/2.
//
#include "ToolsClass.h"

#include <esp_mac.h>
#include <esp_efuse.h>
#include <esp_log.h>
#include <array>
#include <esp_efuse_table.h>
#include <sstream>
#include <iomanip>
#include <algorithm>

#include "BAT_Driver.h"
#include "PWR_Key.h"

static const char *TAG = "ToolsClass";


ToolsClass* ToolsClass::instance;
std::mutex ToolsClass::instance_mutex;
ToolsClass *ToolsClass::getInstance() {
    std::lock_guard<std::mutex> lock(instance_mutex);
    if (!instance) {
        instance = new ToolsClass();
    }
    return instance;
}

ToolsClass::ToolsClass() {
    ESP_LOGI(TAG, "ToolsClass init");
    PWR_Init();
    BAT_Init();     // 电池驱动初始化
}

float ToolsClass::getBatteryVolts() {
    return BAT_Get_Volts();
}


int32_t ToolsClass::getBatteryPer() {
    return BAT_Get_Percent();
}

// 静态：拼出完整路径
std::string ToolsClass::makeFullPath(const std::string& filename)
{
    return "/sdcard/" + filename;
}




std::string ToolsClass::getChipSerialNumber() {
    // 获取芯片序列号(17 字节长的 "Chip ID" （乐鑫官方唯一序列号）)
    std::array<uint8_t, 17> id{};
    /* 下面这个宏在 ESP32-S3 上展开为 17 byte 序列号字段，直接可用 */
    esp_err_t err = esp_efuse_read_field_blob(ESP_EFUSE_OPTIONAL_UNIQUE_ID, id.data(), id.size() * 8);
    if (err != ESP_OK) {
        ESP_LOGE(TAG, "read Chip ID failed: %s", esp_err_to_name(err));
        return "";
    }
    std::stringstream ss;
    for (uint8_t v : id) ss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(v);
    return ss.str();
}

std::string ToolsClass::getChipMAC() {
    std::array<uint8_t, 6> mac{};
    esp_efuse_mac_get_default(mac.data());   // 读出厂 MAC
    std::stringstream ss;
    for (size_t i = 0; i < mac.size(); ++i) {
        ss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(mac[i]);
        if (i + 1 != mac.size()) ss << ':';
    }
    return ss.str();
}

// 1. 去掉 mac 中的冒号
// 2. 拼接 chipID
// 3. 取前 24 字符并转大写
std::string ToolsClass::GenerateSN(const std::string& mac, const std::string& chipID)
{
    // 1. 去掉 MAC 里的冒号
    std::string plainMac;
    plainMac.reserve(mac.size());
    for (char ch : mac)
        if (ch != ':') plainMac.push_back(ch);

    // 2. 拼接
    std::string raw = plainMac + chipID;

    // 3. 取前 24 位并转大写
    if (raw.size() > 24) raw.resize(24);
    std::transform(raw.begin(), raw.end(), raw.begin(),
                   [](unsigned char c){ return std::toupper(c); });
    return raw;
}

std::string ToolsClass::device_version = "Beta0.3";
std::string ToolsClass::getDeviceVersion() {
    return device_version;
}