move into firmware subfolder

Signed-off-by: Peter Siegmund <developer@mars3142.org>
This commit is contained in:
2025-08-20 10:27:03 +02:00
parent d316bb9f2c
commit 5a08c2e09d
117 changed files with 0 additions and 0 deletions

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#pragma once
#include <string>
#include <type_traits>
/**
* @interface IPersistenceManager
* @brief Abstract interface for platform-independent persistence management
* @details This interface defines the contract for key-value storage and retrieval
* systems across different platforms (Desktop/SDL3 and ESP32).
*/
class IPersistenceManager
{
public:
virtual ~IPersistenceManager() = default;
/**
* @brief Template methods for type-safe setting and retrieving of values
* @tparam T The type of value to set (must be one of: bool, int, float, double, std::string)
* @param key The key to associate with the value
* @param value The value to store
*/
template<typename T>
void SetValue(const std::string& key, const T& value) {
static_assert(std::is_same_v<T, bool> ||
std::is_same_v<T, int> ||
std::is_same_v<T, float> ||
std::is_same_v<T, double> ||
std::is_same_v<T, std::string>,
"Unsupported type for IPersistenceManager");
SetValueImpl(key, value);
}
/**
* @brief Template method for type-safe retrieval of values
* @tparam T The type of value to retrieve
* @param key The key to look up
* @param defaultValue The default value to return if the key is not found
* @return The stored value or default value if the key doesn't exist
*/
template<typename T>
[[nodiscard]] T GetValue(const std::string& key, const T& defaultValue = T{}) const {
return GetValueImpl<T>(key, defaultValue);
}
/**
* @brief Utility methods for key management
*/
[[nodiscard]] virtual bool HasKey(const std::string& key) const = 0; ///< Check if a key exists
virtual void RemoveKey(const std::string& key) = 0; ///< Remove a key-value pair
virtual void Clear() = 0; ///< Clear all stored data
[[nodiscard]] virtual size_t GetKeyCount() const = 0; ///< Get the number of stored keys
/**
* @brief Persistence operations
*/
virtual bool Save() = 0; ///< Save data to persistent storage
virtual bool Load() = 0; ///< Load data from persistent storage
protected:
/**
* @brief Template-specific implementations that must be overridden by derived classes
* @details These methods handle the actual storage and retrieval of different data types
*/
virtual void SetValueImpl(const std::string& key, bool value) = 0;
virtual void SetValueImpl(const std::string& key, int value) = 0;
virtual void SetValueImpl(const std::string& key, float value) = 0;
virtual void SetValueImpl(const std::string& key, double value) = 0;
virtual void SetValueImpl(const std::string& key, const std::string& value) = 0;
[[nodiscard]] virtual bool GetValueImpl(const std::string& key, bool defaultValue) const = 0;
[[nodiscard]] virtual int GetValueImpl(const std::string& key, int defaultValue) const = 0;
[[nodiscard]] virtual float GetValueImpl(const std::string& key, float defaultValue) const = 0;
[[nodiscard]] virtual double GetValueImpl(const std::string& key, double defaultValue) const = 0;
[[nodiscard]] virtual std::string GetValueImpl(const std::string& key, const std::string& defaultValue) const = 0;
private:
/**
* @brief Template dispatch methods for type-safe value retrieval
* @tparam T The type to retrieve
* @param key The key to look up
* @param defaultValue The default value to return
* @return The retrieved value or default if not found
*/
template<typename T>
[[nodiscard]] T GetValueImpl(const std::string& key, const T& defaultValue) const
{
if constexpr (std::is_same_v<T, bool>) {
return GetValueImpl(key, static_cast<bool>(defaultValue));
} else if constexpr (std::is_same_v<T, int>) {
return GetValueImpl(key, static_cast<int>(defaultValue));
} else if constexpr (std::is_same_v<T, float>) {
return GetValueImpl(key, static_cast<float>(defaultValue));
} else if constexpr (std::is_same_v<T, double>) {
return GetValueImpl(key, static_cast<double>(defaultValue));
} else if constexpr (std::is_same_v<T, std::string>) {
return GetValueImpl(key, static_cast<const std::string&>(defaultValue));
} else {
static_assert(std::is_same_v<T, bool> ||
std::is_same_v<T, int> ||
std::is_same_v<T, float> ||
std::is_same_v<T, double> ||
std::is_same_v<T, std::string>,
"Unsupported type for IPersistenceManager");
return defaultValue; // This line will never be reached, but satisfies the compiler
}
}
};

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#pragma once
#include "IPersistenceManager.h"
#include <string>
#include <unordered_map>
#include <nvs.h>
#include <nvs_flash.h>
/**
* @class PersistenceManager
* @brief ESP32-specific implementation using NVS (Non-Volatile Storage)
* @details This implementation uses ESP32's NVS API for persistent storage
* in flash memory, providing a platform-optimized solution for
* embedded systems.
*/
class PersistenceManager final : public IPersistenceManager
{
private:
nvs_handle_t nvs_handle_;
std::string namespace_;
bool initialized_;
public:
explicit PersistenceManager(const std::string &nvs_namespace = "config");
~PersistenceManager() override;
bool HasKey(const std::string &key) const override;
void RemoveKey(const std::string &key) override;
void Clear() override;
size_t GetKeyCount() const override;
bool Save() override;
bool Load() override;
bool Initialize();
void Deinitialize();
bool IsInitialized() const
{
return initialized_;
}
protected:
void SetValueImpl(const std::string &key, bool value) override;
void SetValueImpl(const std::string &key, int value) override;
void SetValueImpl(const std::string &key, float value) override;
void SetValueImpl(const std::string &key, double value) override;
void SetValueImpl(const std::string &key, const std::string &value) override;
bool GetValueImpl(const std::string &key, bool defaultValue) const override;
int GetValueImpl(const std::string &key, int defaultValue) const override;
float GetValueImpl(const std::string &key, float defaultValue) const override;
double GetValueImpl(const std::string &key, double defaultValue) const override;
std::string GetValueImpl(const std::string &key, const std::string &defaultValue) const override;
private:
bool EnsureInitialized() const;
};

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#pragma once
#include "../IPersistenceManager.h"
#include <SDL3/SDL.h>
#include <unordered_map>
#include <variant>
class PersistenceManager final : public IPersistenceManager {
public:
using ValueType = std::variant<
bool,
int,
float,
double,
std::string
>;
private:
std::unordered_map<std::string, ValueType> m_data;
std::string m_filename;
public:
explicit PersistenceManager(std::string filename = "settings.dat");
~PersistenceManager() override;
[[nodiscard]] bool HasKey(const std::string& key) const override;
void RemoveKey(const std::string& key) override;
void Clear() override;
[[nodiscard]] size_t GetKeyCount() const override { return m_data.size(); }
bool Save() override;
bool Load() override;
bool SaveToFile(const std::string& filename);
bool LoadFromFile(const std::string& filename);
protected:
void SetValueImpl(const std::string& key, bool value) override;
void SetValueImpl(const std::string& key, int value) override;
void SetValueImpl(const std::string& key, float value) override;
void SetValueImpl(const std::string& key, double value) override;
void SetValueImpl(const std::string& key, const std::string& value) override;
[[nodiscard]] bool GetValueImpl(const std::string& key, bool defaultValue) const override;
[[nodiscard]] int GetValueImpl(const std::string& key, int defaultValue) const override;
[[nodiscard]] float GetValueImpl(const std::string& key, float defaultValue) const override;
[[nodiscard]] double GetValueImpl(const std::string& key, double defaultValue) const override;
[[nodiscard]] std::string GetValueImpl(const std::string& key, const std::string& defaultValue) const override;
private:
static bool WriteValueToStream(SDL_IOStream* stream, const ValueType& value) ;
static bool ReadValueFromStream(SDL_IOStream* stream, ValueType& value) ;
enum class TypeId : uint8_t {
BOOL = 0,
INT = 1,
FLOAT = 2,
DOUBLE = 3,
STRING = 4
};
static TypeId GetTypeId(const ValueType& value);
};