#pragma once

#include "../DeviceInfo.h"
#import <Metal/Metal.h>

CC_BACKEND_BEGIN

enum class FeatureSet : int32_t
{
    Unknown = -1,
    FeatureSet_iOS_GPUFamily1_v1 = 0,
    FeatureSet_iOS_GPUFamily2_v1 = 1,
    
    FeatureSet_iOS_GPUFamily1_v2 = 2,
    FeatureSet_iOS_GPUFamily2_v2 = 3,
    FeatureSet_iOS_GPUFamily3_v1 = 4,
    
    FeatureSet_iOS_GPUFamily1_v3 = 5,
    FeatureSet_iOS_GPUFamily2_v3 = 6,
    FeatureSet_iOS_GPUFamily3_v2 = 7,
    
    FeatureSet_iOS_GPUFamily1_v4 = 8,
    FeatureSet_iOS_GPUFamily2_v4 = 9,
    FeatureSet_iOS_GPUFamily3_v3 = 10,
    FeatureSet_iOS_GPUFamily4_v1 = 11,
    
    FeatureSet_iOS_GPUFamily1_v5 = 12,
    FeatureSet_iOS_GPUFamily2_v5 = 13,
    FeatureSet_iOS_GPUFamily3_v4 = 14,
    FeatureSet_iOS_GPUFamily4_v2 = 15,
    
    FeatureSet_macOS_GPUFamily1_v1 = 10000,
    
    FeatureSet_macOS_GPUFamily1_v2 = 10001,
    FeatureSet_macOS_ReadWriteTextureTier2 = 10002,
    
    FeatureSet_macOS_GPUFamily1_v3 = 10003,
    
    FeatureSet_macOS_GPUFamily1_v4 = 10004,
    FeatureSet_macOS_GPUFamily2_v1 = 10005,
};

inline FeatureSet operator--( FeatureSet& x ) { return x = (FeatureSet)(std::underlying_type<FeatureSet>::type(x) - 1); }

class DeviceInfoMTL : public DeviceInfo
{
public:
    DeviceInfoMTL(id<MTLDevice> device);
	virtual ~DeviceInfoMTL() = default;

    virtual bool init() override;
    virtual const char* getVendor() const override;
    virtual const char* getRenderer() const override;
    virtual const char* getVersion() const override;
    virtual const char* getExtension() const override;
    virtual bool checkForFeatureSupported(FeatureType feature) override;
    
private:
    std::string _deviceName;
    FeatureSet _featureSet = FeatureSet::Unknown;
    bool _isDepth24Stencil8PixelFormatSupported = false;
};

CC_BACKEND_END