using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

// ÀÎÅÍÆäÀ̽º
public interface IPathLineView
{
}

[RequireComponent(typeof(LineRenderer))]
public class PathLineView : MonoBehaviour, IPathLineView
{
    private LineRenderer lineRenderer;

    void Awake()
    {
        lineRenderer = GetComponent<LineRenderer>();
        // Line Renderer ±âº» ¼³Á¤
        lineRenderer.startWidth = 0.01f;
        lineRenderer.endWidth = 0.01f;
        lineRenderer.material = new Material(Shader.Find("Legacy Shaders/Particles/Alpha Blended Premultiply"));
        lineRenderer.startColor = Color.cyan;
        lineRenderer.endColor = Color.cyan;
    }

    private Vector3 ConvertRobotDataToVector3(RobotData pose)
    {
        float x = Convert.ToSingle(pose.x / -1000.0); // mm -> m
        float y = Convert.ToSingle(pose.z / 1000.0);  // Robot Z(mm) -> Unity Y(m)
        float z = Convert.ToSingle(pose.y / -1000.0); // Robot Y(mm) -> Unity Z(m)
        return new Vector3(x, y, z);
    }

    /// <summary>
    /// ÇÁ·Î±×·¥ÀÇ ¸ðµç Æ÷ÀÎÆ®¸¦ ¼ø¼­´ë·Î ÀÕ´Â ¼±À» ±×¸²
    /// </summary>
    public void DrawPath(List<RobotData> poses)
    {
        if (poses == null || poses.Count < 2)
        {
            lineRenderer.positionCount = 0; // Æ÷ÀÎÆ®°¡ 2°³ ¹Ì¸¸ÀÌ¸é ¼±À» Áö¿ò
            return;
        }

        Vector3[] positions = poses.Select(ConvertRobotDataToVector3).ToArray();

        lineRenderer.positionCount = positions.Length;
        lineRenderer.SetPositions(positions);
    }

    // ½Ç½Ã°£ °æ·Î ±×¸®±â
    public void DrawPath(List<RobotData> poses, int modifiedIndex, RobotData tempPose)
    {
        if (poses == null || poses.Count < 2 ||
            modifiedIndex < 0 || modifiedIndex >= poses.Count)
        {
            DrawPath(poses);
            return;
        }

        Vector3[] positions = poses.Select(ConvertRobotDataToVector3).ToArray();

        positions[modifiedIndex] = ConvertRobotDataToVector3(tempPose);

        lineRenderer.positionCount = positions.Length;
        lineRenderer.SetPositions(positions);
    }
}