#pragma once

#include <wrl.h>
#include <wrl/implements.h>
#include <windows.storage.streams.h>
#include <robuffer.h>
#include <vector>
#include "../../VoIPController.h"
#include "../../VoIPServerConfig.h"

namespace libtgvoip{
	public ref class Endpoint sealed{
	public:
		property int64 id;
		property uint16 port;
		property Platform::String^ ipv4;
		property Platform::String^ ipv6;
		property Platform::Array<uint8>^ peerTag;
	};

	public enum class CallState : int{
		WaitInit=1,
		WaitInitAck,
		Established,
		Failed
	};

	public enum class Error : int{
		Unknown=0,
		Incompatible,
		Timeout,
		AudioIO
	};

	public enum class NetworkType : int{
		Unknown=0,
		GPRS,
		EDGE,
		UMTS,
		HSPA,
		LTE,
		WiFi,
		Ethernet,
		OtherHighSpeed,
		OtherLowSpeed,
		Dialup,
		OtherMobile
	};

	public enum class DataSavingMode{
		Never=0,
		MobileOnly,
		Always
	};

	public enum class ProxyProtocol{
		None=0,
		SOCKS5
	};

	ref class VoIPControllerWrapper;
	public delegate void CallStateChangedEventHandler(VoIPControllerWrapper^ sender, CallState newState);

	ref class VoIPControllerWrapper;
	public delegate void SignalBarsChangedEventHandler(VoIPControllerWrapper^ sender, int newCount);

    public ref class VoIPControllerWrapper sealed{
    public:
        VoIPControllerWrapper();
		virtual ~VoIPControllerWrapper();
		void Start();
		void Connect();
		void SetPublicEndpoints(const Platform::Array<Endpoint^>^ endpoints, bool allowP2P, int32_t connectionMaxLayer);
		void SetNetworkType(NetworkType type);
		void SetMicMute(bool mute);
		void SetEncryptionKey(const Platform::Array<uint8>^ key, bool isOutgoing);
		void SetConfig(double initTimeout, double recvTimeout, DataSavingMode dataSavingMode, bool enableAEC, bool enableNS, bool enableAGC, Platform::String^ logFilePath, Platform::String^ statsDumpFilePath);
		void SetProxy(ProxyProtocol protocol, Platform::String^ address, uint16_t port, Platform::String^ username, Platform::String^ password);
		Platform::String^ GetDebugString();
		Platform::String^ GetDebugLog();
		Error GetLastError();
		static Platform::String^ GetVersion();
		int64 GetPreferredRelayID();
		void SetAudioOutputGainControlEnabled(bool enabled);
		static void UpdateServerConfig(Platform::String^ json);
		static void SwitchSpeaker(bool external);
		//static Platform::String^ TestAesIge();

		event CallStateChangedEventHandler^ CallStateChanged;
		event SignalBarsChangedEventHandler^ SignalBarsChanged;

	private:
		static void OnStateChanged(tgvoip::VoIPController* c, int state);
		static void OnSignalBarsChanged(tgvoip::VoIPController* c, int count);
		void OnStateChangedInternal(int state);
		void OnSignalBarsChangedInternal(int count);
		tgvoip::VoIPController* controller;
    };

	ref class MicrosoftCryptoImpl{
	public:
		static void AesIgeEncrypt(uint8_t* in, uint8_t* out, size_t len, uint8_t* key, uint8_t* iv);
		static void AesIgeDecrypt(uint8_t* in, uint8_t* out, size_t len, uint8_t* key, uint8_t* iv);
		static void AesCtrEncrypt(uint8_t* inout, size_t len, uint8_t* key, uint8_t* iv, uint8_t* ecount, uint32_t* num);
		static void SHA1(uint8_t* msg, size_t len, uint8_t* out);
		static void SHA256(uint8_t* msg, size_t len, uint8_t* out);
		static void RandBytes(uint8_t* buffer, size_t len);
		static void Init();
	private:
		static inline void XorInt128(uint8_t* a, uint8_t* b, uint8_t* out);
		static void IBufferToPtr(Windows::Storage::Streams::IBuffer^ buffer, size_t len, uint8_t* out);
		static Windows::Storage::Streams::IBuffer^ IBufferFromPtr(uint8_t* msg, size_t len);
		/*static Windows::Security::Cryptography::Core::CryptographicHash^ sha1Hash;
		static Windows::Security::Cryptography::Core::CryptographicHash^ sha256Hash;*/
		static Windows::Security::Cryptography::Core::HashAlgorithmProvider^ sha1Provider;
		static Windows::Security::Cryptography::Core::HashAlgorithmProvider^ sha256Provider;
		static Windows::Security::Cryptography::Core::SymmetricKeyAlgorithmProvider^ aesKeyProvider;
	};

	class NativeBuffer :
		public Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::RuntimeClassType::WinRtClassicComMix>,
		ABI::Windows::Storage::Streams::IBuffer,
		Windows::Storage::Streams::IBufferByteAccess>
	{
	public:
		NativeBuffer(byte *buffer, UINT totalSize)
		{
			m_length=totalSize;
			m_buffer=buffer;
		}

		virtual ~NativeBuffer()
		{
		}

		STDMETHODIMP RuntimeClassInitialize(byte *buffer, UINT totalSize)
		{
			m_length=totalSize;
			m_buffer=buffer;
			return S_OK;
		}

		STDMETHODIMP Buffer(byte **value)
		{
			*value=m_buffer;
			return S_OK;
		}

		STDMETHODIMP get_Capacity(UINT32 *value)
		{
			*value=m_length;
			return S_OK;
		}

		STDMETHODIMP get_Length(UINT32 *value)
		{
			*value=m_length;
			return S_OK;
		}

		STDMETHODIMP put_Length(UINT32 value)
		{
			m_length=value;
			return S_OK;
		}

	private:
		UINT32 m_length;
		byte *m_buffer;
	};
}