using System.Collections;
using Mirror;
using UnityEngine;
using UnityEngine.EventSystems;

public class Puck : NetworkBehaviour
{
    [HideInInspector]public Rigidbody2D rb;
    [SyncVar]
    public bool isSelected;
    public LineRenderer lineRenderer;
    [SyncVar]
    public Team team;
    public GameObject redTeamMarker;
    public GameObject blueTeamMarker;
    public Transform selectedMarker;
    public float markerRotateSpeed;
    public float markerBounceIntensity;
    public float markerBounceSpeed;
    Vector3 markerStartScale;
    Vector3 startPosition;
    float bounceSinA;
    void OnValidate()
    {
        UpdateTeam();
    }

    void Awake()
    {
        UpdateTeam();
        markerStartScale = selectedMarker.localScale;
        rb=GetComponent<Rigidbody2D>();
        startPosition = transform.position;
    }


    void UpdateTeam(){
        redTeamMarker.SetActive(team == Team.Red);
        blueTeamMarker.SetActive(team == Team.Blue);
    }

    void Start()
    {
        GameEvents.OnSelectedPuckChanged += OnSelectedPuckChanged;
        GameManager.OnTeamChanged += OnTeamChanged;

        GameManager.instance.RegisterPuck(this);
    }

    void OnDestroy()
    {
        GameEvents.OnSelectedPuckChanged -= OnSelectedPuckChanged;
        GameManager.OnTeamChanged -= OnTeamChanged;

        GameManager.instance.DisposePuck(this);
    }
    public Vector3 lineEnd;
    void Update()
    {
        if (isSelected && lineRenderer != null)
        {
            Vector3 worldEnd = Camera.main.ScreenToWorldPoint(new Vector3(NetPlayer.curPosition.x, NetPlayer.curPosition.y, Camera.main.nearClipPlane));

            lineEnd = transform.InverseTransformPoint(worldEnd);
            float clamp = GameManager.instance.puckDragClampMax;
            lineEnd = Vector2.ClampMagnitude(lineEnd, clamp);

            if (NetPlayer.localPlayer != null
                && team == NetPlayer.localPlayer.myTeam
                && GameManager.instance.SelectedTeam == team)
            {
                float baseStretch = lineEnd.magnitude / clamp;
                float distanceMultiplier = GameManager.instance.GetCameraStretchDistanceMultiplier(transform.position);
                CameraEffects.instance.SetStretchFactor(baseStretch * distanceMultiplier);
            }

            // Only two points for the line
            lineRenderer.positionCount = 2;
            lineRenderer.SetPosition(0, Vector3.zero);
            lineRenderer.SetPosition(1, new Vector3(lineEnd.x, lineEnd.y, 0));
        }

        selectedMarker.gameObject.SetActive(GetMarkerVisibility());
        if(GameManager.instance.SelectedTeam == team){
            selectedMarker.Rotate(new Vector3(0,0,1), markerRotateSpeed * Time.deltaTime);
            bounceSinA += Time.deltaTime * markerBounceSpeed;
            float bounce = Mathf.Sin(bounceSinA) * markerBounceIntensity;
            selectedMarker.localScale = markerStartScale + (Vector3.one * bounce);
        }
    }

    bool GetMarkerVisibility(){
        if(GameManager.instance.m_isMoving){return false;}
        if(NetPlayer.localPlayer == null){return false;}
        if(NetPlayer.localPlayer.myTeam != team){return false;}

        if(GameManager.instance.SelectedTeam == team){
            if(GameManager.NoPuckSelected){
                return true;
            }else{
                return isSelected;
            }
        }

        return false;
    }

    void OnSelectedPuckChanged(Puck puck)
    {
        isSelected = puck == this;
        lineRenderer.enabled = isSelected;

        if(NetPlayer.localPlayer == null){return;}
        if(team != NetPlayer.localPlayer.myTeam){
            lineRenderer.widthMultiplier = 0;
        }
    }

    void OnTeamChanged(Team team){

    }

    void OnCollisionEnter2D(Collision2D collision)
    {
        if (!collision.collider.CompareTag("Puck"))
            return;
        // Both pucks get this callback; play once per contact.
        if (gameObject.GetInstanceID() >= collision.gameObject.GetInstanceID())
            return;

        float otherSpeed = collision.relativeVelocity.magnitude;
        Debug.Log("Puck collision speed: " + otherSpeed);
        float maxVolSpeed =5f;
        float vol = Mathf.Clamp(otherSpeed / maxVolSpeed,0.1f,1);
        if (AudioManager.instance != null){
            AudioManager.instance.PlayPuckHit(vol);
            if(isServer){
                RpcPuckHitAudio(vol);
            }
        }
    }

    [ClientRpc]
    void RpcPuckHitAudio(float vol){
        AudioManager.instance.PlayPuckHit(vol);
    }

    public void Reset(Vector3? position = null, float duration = 0.5f)
    {
        Vector3 pos = position ?? startPosition;
        StartCoroutine(CoroutineReset(pos, duration));
    }
    Coroutine coroutineScheduleReset;
    public void ScheduleReset(Vector3 position, float duration = 0.5f){
        coroutineScheduleReset = StartCoroutine(CoroutineScheduleReset(position, duration));
    }

    public void UnscheduleReset(){
        if(coroutineScheduleReset != null){
            StopCoroutine(coroutineScheduleReset);
        }
    }

    IEnumerator CoroutineScheduleReset(Vector3 position, float duration){
        while(GameManager.isMoving){
            yield return null;
        }

        Debug.Log("Resetting puck", gameObject);
        Vector3 dir = position - transform.position;
        Vector3 centerDir = Vector3.zero - transform.position;

        dir = dir.normalized;
        centerDir = centerDir.normalized;

        // Clamp direction to within 30 degrees of centerDir if needed
        float maxAngle = 30f;
        float angle = Vector3.Angle(dir, centerDir);
        if (angle > maxAngle)
        {
            dir = Vector3.Slerp(centerDir, dir, maxAngle / angle).normalized;
        }

        position += dir * 1.25f;
        Reset(position, duration);

    }

    IEnumerator CoroutineReset(Vector3 pos, float duration){
        float t=0;
        Vector3 pos1 = transform.position;
        Quaternion rot1 = transform.rotation;
        while(t<duration){
            t+=Time.deltaTime;
            transform.position = Vector3.Lerp(pos1, pos, t/duration);
            transform.rotation = Quaternion.Lerp(rot1, Quaternion.identity, t/duration);
            yield return null;
        }
    }
}

public enum Team{
    Red,
    Blue
}