#pragma once

#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/MetaInput.hlsl"

struct Attributes
{
    float4 positionOS : POSITION;
    float4 uv0 : TEXCOORD0;
    float2 uv1 : TEXCOORD1;
    float2 uv2 : TEXCOORD2;
};

struct Varyings
{
    float4 positionCS : SV_POSITION;
    float4 uv : TEXCOORD0;
};

Varyings mVaryings;

#include "Includes/Common/Input.hlsl"
#include "Includes/Utils/MathUtils.hlsl"
#include "Includes/Utils/ColorSpaceUtils.hlsl"
#include "Includes/Features/Surface/Data/UV.hlsl"
#include "Includes/Features/Surface/Maps/BaseMap.hlsl"
#include "Includes/Features/Surface/Maps/MaskMap.hlsl"
#include "Includes/Features/Effects/Emission.hlsl"

Varyings VertexMeta(Attributes input)
{
    Varyings output;
    output.positionCS = MetaVertexPosition(input.positionOS, input.uv1, input.uv2, unity_LightmapST, unity_DynamicLightmapST);
    output.uv.xy = TRANSFORM_TEX(input.uv0, _BaseMap);
    output.uv.zw = input.uv0.zw;
    return output;
}

half4 FragmentMeta(Varyings input) : SV_Target
{
    mVaryings = input;

    SetupUV();
    SetupBaseMap();
    SetupMaskMap();

    float2 uv = input.uv;
    MetaInput metaInput = (MetaInput)0;
    metaInput.Albedo = _BaseColor.rgb * tex2D(_BaseMap, uv).rgb;
    // metaInput.SpecularColor = SampleSpecularSmoothness(uv, 1.0h, _DirectSpecularColor, tex2D(_MaskTEXTURE2D_ARGS(_SpecGlossMap, sampler_SpecGlossMap)).xyz;
    metaInput.Emission = GetEmission();

    return MetaFragment(metaInput);
}