CYBLogger.hpp

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#pragma once

namespace CYB {
    namespace Engine {
        class Logger : public API::Logger, private API::Threadable {
            ENABLE_TEST_HOOKS
        private:
            struct LogEntry {
                API::UniquePointer<LogEntry> FNext; 
                API::String::Dynamic FMessage;  
                Level FLevel;   
            };
        private:
            Memory::Heap FHeap; 
            Context FContext;   

            Platform::System::File FFile;   
            mutable Platform::System::Mutex FQueueLock, 
                FFileLock;  
            
            API::UniquePointer<LogEntry> FQueueHead;    
            LogEntry* FQueueTail;   
            API::Interop::Object<Platform::System::Thread> FThread; 

            std::atomic_bool FCancelled,    
                FDevLog,    
                FPaused;    
        private:
            static API::String::Dynamic TimeString(const int AHour, const int AMinute, const int ASecond, const bool AColons);
            static API::String::Dynamic TimeString(const bool AColons);

            static API::String::Dynamic FormatLogMessage(const API::String::CStyle& AMessage, const Level ALevel);
            
            static Platform::System::File OpenFileImpl(const Platform::System::Path& ABasePath);
            static Platform::System::File OpenFile(void);

            static void LogShutdownForEntry(API::UniquePointer<LogEntry>&& AEntry, API::Logger& AEmergency) noexcept;

            void EmptyQueue(void);

            API::Threadable& SelfAsThreadable(void) noexcept;

            void BeginThreadedOperation(void) override;
            void CancelThreadedOperation(void) override;
        public:
            Logger(API::Logger& AEmergencyLogger);
            ~Logger();

            void Pause(void) noexcept;
            void Resume(void) noexcept;

            void Log(const API::String::CStyle& AMessage, const Level ALevel) final override;

            void Flush(void) const noexcept final override;

            const API::String::CStyle& CurrentLog(void) const noexcept final override;

            void SetDebugLogging(const bool AEnable) noexcept final override;
        };
    };
};