AppContext.h

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#pragma once
#include <unordered_map>
#include <cstdint>
#include <type_traits>
#include <string_view>
#include <FreeRTOS.h>
#include <semphr.h>
 
class AppContext {
public:
    static AppContext& getInstance();
 
    template<typename T>
    void registerService(T* service) {
        xSemaphoreTake(mutex, portMAX_DELAY);
        services[getTypeKey<T>()] = reinterpret_cast<void*>(service);
        xSemaphoreGive(mutex);
    }
 
    template<typename T>
    T* getService() const {
        xSemaphoreTake(mutex, portMAX_DELAY);
        auto it = services.find(getTypeKey<T>());
        xSemaphoreGive(mutex);
        if (it != services.end()) {
            return reinterpret_cast<T*>(it->second);
        }
        return nullptr;
    }
 
    template<typename T>
    static T* get() {
        return getInstance().getService<T>();
    }
    
    template<typename T>
    static bool has() {
        return get<T>() != nullptr;
    }
 
    void initFrameworkServices();
 
private:
    AppContext() = default;
    std::unordered_map<std::uintptr_t, void*> services;
 
    static SemaphoreHandle_t mutex;
 
    template<typename T>
    static constexpr std::uintptr_t getTypeKey() {
        return reinterpret_cast<std::uintptr_t>(&getTypeKey<T>); // unique per T
    }
};