#include "MetaCoreRender/MetaCoreRenderDevice.h"

#include <glad/glad.h>
#include <GLFW/glfw3.h>

namespace MetaCore {

bool MetaCoreRenderDevice::Initialize(GLFWwindow* nativeWindow) {
    if (Initialized_) {
        return true;
    }

    if (gladLoadGLLoader(reinterpret_cast<GLADloadproc>(glfwGetProcAddress)) == 0) {
        return false;
    }

    glEnable(GL_DEPTH_TEST);
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);
    glFrontFace(GL_CCW);
    glDisable(GL_BLEND);
    Initialized_ = nativeWindow != nullptr;
    return Initialized_;
}

void MetaCoreRenderDevice::Shutdown() {
    Initialized_ = false;
}

void MetaCoreRenderDevice::BeginFrame(int width, int height, const glm::vec4& clearColor) const {
    glBindFramebuffer(GL_FRAMEBUFFER, 0);
    glViewport(0, 0, width, height);
    Clear(clearColor);
}

void MetaCoreRenderDevice::Clear(const glm::vec4& clearColor) const {
    glClearColor(clearColor.r, clearColor.g, clearColor.b, clearColor.a);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}

bool MetaCoreRenderDevice::IsInitialized() const {
    return Initialized_;
}

}  // namespace MetaCore