// =============================================
//  Aster: model_loader.cpp
//  Copyright (c) 2020-2024 Anish Bhobe
// =============================================

#define TINYGLTF_NOEXCEPTION
#define JSON_NOEXCEPTION

#define TINYGLTF_IMPLEMENTATION
#define STB_IMAGE_IMPLEMENTATION
#define STB_IMAGE_WRITE_IMPLEMENTATION

#include "model_loader.h"

Model
LoadModel(RenderResourceManager *resourceManager, cstr path)
{
    namespace fs = std::filesystem;
    tinygltf::Model model;
    tinygltf::TinyGLTF loader;

    const auto fsPath = fs::absolute(path);
    const auto ext = fsPath.extension();
    if (ext.c_str() == GLTF_ASCII_FILE_EXTENSION)
    {
        std::string err;
        std::string warn;
        if (loader.LoadASCIIFromFile(&model, &err, &warn, fsPath.generic_string()))
        {
            ERROR_IF(!err.empty(), "{}", err)
            ELSE_IF_WARN(!warn.empty(), "{}", warn);
        }
    }
    if (ext.c_str() == GLTF_BINARY_FILE_EXTENSION)
    {
        std::string err;
        std::string warn;
        if (loader.LoadBinaryFromFile(&model, &err, &warn, fsPath.generic_string()))
        {
            ERROR_IF(!err.empty(), "{}", err)
            ELSE_IF_WARN(!warn.empty(), "{}", warn);
        }
    }
}