using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class Player_Health_Script : MonoBehaviour
{
    public int fatalY = -10;

    public int playerLayer = 8;

    private float width;
    private float height;

    private GameObject healthDisplay;
    private GameObject lifesDisplay;

    private bool dying;
    private int hurtCooldown = 0;

    private AudioManager_Script audioManager;

    void Start()
    {
        width = GetComponent<SpriteRenderer>().bounds.size.x;
        height = GetComponent<SpriteRenderer>().bounds.size.y;

        healthDisplay = GameObject.FindGameObjectWithTag("HealthDisplay");
        lifesDisplay = GameObject.FindGameObjectWithTag("LifesDisplay");

        audioManager = GameObject.FindGameObjectWithTag("AudioManager").GetComponent<AudioManager_Script>();
    }

    void Update()
    {
        gameObject.GetComponent<Animator>().SetBool("hurt", false);

        Color oldColor = gameObject.GetComponent<SpriteRenderer>().color;
        if (oldColor != null && (oldColor.r < 1 || oldColor.g < 1 || oldColor.b < 1))
        {
            gameObject.GetComponent<SpriteRenderer>().color = new Color(oldColor.r / 0.6f, oldColor.r / 0.6f, oldColor.r / 0.6f, 1);
        }

        if (dying) return;
        if (hurtCooldown > 0) hurtCooldown--;

        int layerMask = ~(1 << playerLayer);

        for (int x = -1; x <= 1; x += 2)
        {
            for (float y = gameObject.transform.position.y - height * 0.4f; y <= gameObject.transform.position.y + height * 0.4f; y += 0.1f)
            {
                RaycastHit2D hit = Physics2D.Raycast(new Vector2(gameObject.transform.position.x, y), new Vector2(x, 0), width * 0.6f, layerMask);
                if (hit.collider && (hit.collider.tag == "Enemy" || hit.collider.tag == "Projectile"))
                {

                    gameObject.GetComponent<Rigidbody2D>().AddForce(new Vector2(-x * 1200, 200));
                    hit.collider.GetComponent<Rigidbody2D>().AddForce(new Vector2(x * 1200, 200));

                    if (hurtCooldown <= 0) hurtPlayer();

                    if (hit.collider.tag == "Projectile")
                    {
                        DestroyImmediate(hit.collider.gameObject);
                    }

                    break;
                }
            }
        }

        if (gameObject.transform.position.y <= fatalY) Static_GlobalStats.health = 0;

        if (Static_GlobalStats.health <= 0)
        {
            int randomDir = Random.Range(0f, 1f) > 0.5f ? -1 : 1;            
            gameObject.GetComponent<Rigidbody2D>().constraints = RigidbodyConstraints2D.None;
            gameObject.GetComponent<Rigidbody2D>().AddForceAtPosition(new Vector2(randomDir * 40, 5), new Vector2(width, height));

            Static_GlobalStats.lifes--;
            if (Static_GlobalStats.lifes > 0)
            {
                StartCoroutine(restartLevel());
            }
            else
            {
                StartCoroutine(gameOver());
            }

            audioManager.playSfx("death");
            audioManager.playComment("death");

            dying = true;
        }

        if (healthDisplay)
        {
            healthDisplay.gameObject.GetComponent<Text>().text = "" + Static_GlobalStats.health + "%";

            float b = (float)Static_GlobalStats.health / 100;
            float g = 0.5f + b / 2;
            healthDisplay.gameObject.GetComponent<Text>().color = new Color(1, g, b, 1);
        }
        if (lifesDisplay) lifesDisplay.gameObject.GetComponent<Text>().text = "" + Static_GlobalStats.lifes;

        gameObject.GetComponent<Animator>().SetFloat("health", Static_GlobalStats.health);
    }

    void hurtPlayer()
    {
        hurtCooldown += 20;
        Static_GlobalStats.health = Mathf.Clamp(Static_GlobalStats.health - 15, 0, 100);

        if (audioManager) {
            if (Static_GlobalStats.health > 0) audioManager.playComment("hurt");
        }

        gameObject.GetComponent<Animator>().SetBool("hurt", true);
        gameObject.GetComponent<SpriteRenderer>().color = new Color(1, 0.5f, 0.3f, 1);
    }

    IEnumerator restartLevel()
    {
        yield return new WaitForSeconds(3);

        Static_GlobalStats.health = 100;
        SceneManager.LoadScene(SceneManager.GetActiveScene().name);
    }

    IEnumerator gameOver()
    {
        yield return new WaitForSeconds(3);

        Static_GlobalStats.totalScore = 0;
        Static_GlobalStats.levelScore = 0;
		Static_GlobalStats.bauteile = 0;
		Static_GlobalStats.bauteileLevel = 0;
        Static_GlobalStats.lifes = 3;
        Static_GlobalStats.health = 100;

        SceneManager.LoadScene("Menu_GameOver");
    }
}