// =============================================
//  Aster: pipeline_utils.h
//  Copyright (c) 2020-2024 Anish Bhobe
// =============================================

#pragma once

#include "pipeline.h"

#include <EASTL/array.h>

struct RenderResourceManager;
struct Swapchain;
struct Device;

constexpr auto VERTEX_SHADER_FILE = "shader/model.vert.glsl.spv";
constexpr auto FRAGMENT_SHADER_FILE = "shader/model.frag.glsl.spv";

struct Vertex
{
    vec3 m_Position;
    vec2 m_UV0;

    constexpr static vk::VertexInputBindingDescription
    GetBinding(const u32 binding)
    {
        return {.binding = binding, .stride = sizeof(Vertex), .inputRate = vk::VertexInputRate::eVertex};
    }

    constexpr static eastl::array<vk::VertexInputAttributeDescription, 2>
    GetAttributes(const u32 binding)
    {
        return {
            vk::VertexInputAttributeDescription{
                .location = 0,
                .binding = binding,
                .format = vk::Format::eR32G32B32Sfloat,
                .offset = offsetof(Vertex, m_Position),
            },
            vk::VertexInputAttributeDescription{
                .location = 1,
                .binding = binding,
                .format = vk::Format::eR32G32Sfloat,
                .offset = offsetof(Vertex, m_UV0),
            },
        };
    }
};

vk::ShaderModule CreateShader(const Device *device, cstr shaderFile);
Pipeline CreatePipeline(const Device *device, const Swapchain *swapchain, const RenderResourceManager *resourceManager);