#include "phongentity.h"
#include "shader.h"
#include <glm/glm.hpp>
#include "material.h"
#include "mesh.h"

PhongEntity::PhongEntity(Mesh* myMesh, Material* myMat) : mesh(myMesh), mat(myMat) {}

void PhongEntity::draw(const glm::mat4 viewMatrix, const glm::mat4 projectionMatrix)
{
    glm::mat4 modelViewMatrix = viewMatrix * modelMatrix;
    glm::mat4 mvp = projectionMatrix * modelViewMatrix;
    glm::mat4 normalMatrix = glm::transpose(glm::inverse(modelViewMatrix));
    mat->bindAttributes();
    Shader* shader = mat->getShader();
    shader->bindMatrix(shader->getLocation("viewMatrix"), viewMatrix);
    shader->bindMatrix(shader->getLocation("modelViewMatrix"), modelViewMatrix);
    shader->bindMatrix(shader->getLocation("normalMatrix"), normalMatrix);
    shader->bindMatrix(shader->getLocation("MVP"), mvp);
    mesh->draw();
}

glm::mat4* PhongEntity::getTransform()
{
    return &modelMatrix;
}

Shader* PhongEntity::getShader()
{
    return mat->getShader();
}

Material* PhongEntity::getMaterial()
{
    return mat;
}