#pragma once

#include <glad/glad.h>
#include <string>
#include <climits>
#include <glm/glm.hpp>

struct Material {
  glm::vec3 ambient{0.1f,0.1f,0.1f};
  float shininess{32.0f};
  unsigned int diffuseMap = 0;
  unsigned int specularMap = 0;
};

struct Light {
  glm::vec3 position;
  glm::vec3 ambient;
  glm::vec3 diffuse;
  glm::vec3 specular;
};

class Shader
{
public:
  unsigned int ID = UINT_MAX;

  Shader(const char* vertexPath, const char* fragmentPath);
  unsigned int load_shader(const std::string& filename, GLenum shader_type);
  void use() const;
  void setBool(const std::string &name, bool value) const;
  void setInt(const std::string &name, int value) const;
  void setFloat(const std::string &name, float value) const;
  void setVec4(const std::string &name, float v1, float v2, float v3, float v4) const;
  void setVec4(const std::string &name, const glm::vec4& value) const;
  void setVec3(const std::string &name, float v1, float v2, float v3) const;
  void setVec3(const std::string &name, const glm::vec3& value) const;
  void setMat4(const std::string &name, const glm::mat4& what) const;
  void cleanup();

  void applyMaterial(const Material& material) {
    setVec3("material.ambient", material.ambient);
    setFloat("material.shininess", material.shininess);
  }

  void applyLight(const Light& light) {
    setVec3("light.position", light.position);
    setVec3("light.ambient", light.ambient);
    setVec3("light.diffuse", light.diffuse);
    setVec3("light.specular", light.specular);
  }
};