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/**
 * @file pbr.h
 * @brief PBR render pass
 */

#pragma once
#include "defines.h"
#include "camera.h"
#include "maths_types.h"
#include "ral/ral.h"
#include "ral/ral_common.h"

// PBR;

// --- Public API
typedef struct PBR_Storage PBR_Storage; // Stores all necessary data and handles

PUB void PBR_Init(PBR_Storage* storage);

// NOTE: For simplicity's sake we will render this pass directly to the default framebuffer
PUB void PBR_Run(
    PBR_Storage* storage
    // light data
    // camera
    // geometry
    // materials
);

typedef struct PBR_Params {
  Vec3 albedo;
  f32 metallic;
  f32 roughness;
  f32 ao;
} PBR_Params;

typedef struct PBR_Textures {
  TextureHandle albedo_map;
  TextureHandle normal_map;
  bool metal_roughness_combined;
  TextureHandle metallic_map;
  TextureHandle roughness_map;
  TextureHandle ao_map;
} PBR_Textures;

// --- Internal


GPU_Renderpass* PBR_RPassCreate();
GPU_Pipeline* PBR_PipelineCreate(GPU_Renderpass* rpass);
void PBR_Execute(
    PBR_Storage* storage,
    Camera camera,
    TextureHandle shadowmap_tex,
    MaterialMap* materials, // map of String -> Material
    RenderEnt* entities,
    size_t entity_count

);

// Internally this will need to update material parameters