using System;
using UnityEngine;
using UnityEngine.UI;

public class PlayerController : OrbitalPositionBehaviour
{
    public static int s_PlayerScore;
    private static int s_HighScore = 20;
    
    private static PlayerController s_Instance;
    public static bool IsPlayerAttached => s_Instance.m_OrbitalPosition.m_IsAttachedToRings;
    public static void AttachPlayer() { s_Instance.m_OrbitalPosition.m_IsAttachedToRings = true; }

    private Vector3 m_SuicidePoint;
    private bool m_KillingItself;
    private float m_DeathLerp;
    
    public MeshRenderer m_Renderer;
    public Text m_ScoreText;
    
    protected override void OnStart()
    {
        s_Instance = this;
        
        GlobalOrbitalPositionManager.SetPlayer(m_OrbitalPosition);
        
        m_OrbitalPosition.m_ObjectRadius = 0.1f;
        m_OrbitalPosition.m_SpinSpeed = 0.2f;
    }

    public void Update()
    {
        m_ScoreText.text = s_PlayerScore.ToString();
        if (s_PlayerScore > s_HighScore)
            m_ScoreText.color = Color.yellow;
        
        if (GlobalInput.IsScreenClicked() && GlobalOrbitalPositionManager.AllowPlayerInput)
        {
            m_OrbitalPosition.m_AttachedRing += 1;
        }

        if (!m_KillingItself)
            return;
        
        transform.position = Vector3.Lerp(m_SuicidePoint, m_SuicidePoint.normalized * 20f, m_DeathLerp);
        m_DeathLerp += Time.deltaTime;
    }

    public override void OnCollision(OrbitalPositionBehaviour other)
    {
        if (!m_OrbitalPosition.m_IsAttachedToRings)
            return;
        
        GlobalOrbitalPositionManager.RestartSimulation();
        m_SuicidePoint = transform.position;
        m_KillingItself = true;
        m_DeathLerp = 0f;
    }

    public override void OnSimulationRestart()
    {
        m_KillingItself = false;
        m_Renderer.enabled = true;
        
        m_Renderer.material.color = Color.green;
        
        s_HighScore = Math.Max(s_HighScore, s_PlayerScore);
        s_PlayerScore = 0;
    }

    public override void OnReachCentre()
    {
        GlobalOrbitalPositionManager.RestartSimulation();
    }
}