package org.example;

import com.mokiat.data.front.parser.IOBJParser;
import com.mokiat.data.front.parser.OBJModel;
import com.mokiat.data.front.parser.OBJParser;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.text.MessageFormat;
import java.util.Scanner;

public class Entity
{
    OBJModel model;

    ShaderProgram shader;

    public Entity(String object_file_path, String fragment_shader_path, String vertex_shader_path)
    {
        // Load Object
        try (InputStream in = this.getClass().getResourceAsStream(object_file_path)) {
            // Create an OBJParser and parse the resource
            final IOBJParser parser = new OBJParser();
            this.model = parser.parse(in);

            // Use the model representation to get some basic info
            System.out.println(MessageFormat.format(
                    "OBJ model has {0} vertices, {1} normals, {2} texture coordinates, and {3} objects.",
                    model.getVertices().size(),
                    model.getNormals().size(),
                    model.getTexCoords().size(),
                    model.getObjects().size()));
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }

        // Load Shaders
        try {
            this.shader = new ShaderProgram();
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }

        try {
            String vertex_shader_code = new Scanner(new File(vertex_shader_path)).useDelimiter("\\Z").next();
            this.shader.createVertexShader(vertex_shader_code);
        } catch (Exception e) {
            System.out.println("ERROR Initializing the vertex shader");
            e.printStackTrace();
        }

        try {
            String fragment_shader_code = new Scanner(new File(fragment_shader_path)).useDelimiter("\\Z").next();
            this.shader.createFragmentShader(fragment_shader_code);
        } catch (Exception e)
        {
            System.out.println("ERROR Initializing the fragment shader");
            e.printStackTrace();
        }
    }
}