using System;
using Unity.VisualScripting;
using UnityEngine;

[ExecuteAlways]
public class Connection : MonoBehaviour
{    public enum BuildState { EMPTY, DECONSTRUCTING, CONSTRUCTING, BUILT };

    public Node nodeA, nodeB;
    public bool allowed = true;
    public BuildState state = BuildState.EMPTY;
    public bool hovered = false;
    public LineRenderer lineRenderer;
    public int constructingPlayerId = -1;

    public void SetConnect()
    {
        if (!allowed) return;
        nodeA.connected.Add(nodeB);
        nodeB.connected.Add(nodeA);
    }

    public void DelConnect()
    {
        nodeA.connected.Remove(nodeB);
        nodeB.connected.Remove(nodeA);
    }

    private void Update()
    {
        // On Click
        if (Input.GetMouseButtonDown(0) && hovered && allowed) 
        {
            GameManager.Instance.pressedCon = this;
        }
        if(Input.GetMouseButtonUp(0) && hovered && allowed && GameManager.Instance.pressedCon == this)
        {
            GameManager.Instance.PushNewAction(nodeA.id, nodeB.id, true);
        }

        if (Application.isPlaying && !allowed)        
            lineRenderer.enabled = false;
        else
        {
            float width = (hovered ? 0.6f : 0.3f) * (allowed ? state != BuildState.BUILT ? 0.6f : 1f : 0.1f);

            Color unbuiltColor = !allowed || state == BuildState.EMPTY ? new Color(0.2f, 0.2f, 0.2f) : new Color(0.8f, 0.8f, 0f);

            lineRenderer.startColor = allowed && state == BuildState.BUILT ? nodeA.GetComponent<Renderer>().sharedMaterial.color : unbuiltColor;
            lineRenderer.endColor = allowed && state == BuildState.BUILT ? nodeB.GetComponent<Renderer>().sharedMaterial.color : unbuiltColor;
            lineRenderer.startWidth = width;
            lineRenderer.endWidth = width;

            lineRenderer.SetGreatCircleArc(nodeA.transform.position, nodeB.transform.position, 5, 20.5f);
            lineRenderer.enabled = true;
        }

        hovered = false;
    }
}