#ifndef ECSGAME_LINES_H
#define ECSGAME_LINES_H

#include "../../Util/geometry.h"
#include <GLFW/glfw3.h>
#include <glad/glad.h>
#include <glm/fwd.hpp>
#include <vector>

struct Lines {
    explicit Lines(std::vector<Vector> lines) : vertex_count(lines.size()) {
        GLfloat linearray[vertex_count * 3];
        int pos = 0;

        for (const Vector &vec : lines) {
            linearray[pos++] = vec[0];
            linearray[pos++] = vec[1];
            linearray[pos++] = vec[2];
        }

        glGenVertexArrays(1, &lineVAO);
        glGenBuffers(1, &lineVBO);
        glBindVertexArray(lineVAO);
        glBindBuffer(GL_ARRAY_BUFFER, lineVBO);
        glBufferData(GL_ARRAY_BUFFER, sizeof(linearray), &linearray, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (void *)0);
    }

    void render() const {
        glEnable(GL_LINE_SMOOTH);
        glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
        glBindVertexArray(lineVAO);
        glLineWidth(1.0f);
        glDrawArrays(GL_LINES, 0, vertex_count);
        glLineWidth(1.0f);
    }

  private:
    GLuint lineVAO, lineVBO;
    int vertex_count;
};

#endif // ECSGAME_LINES_H