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

public class  Player : MonoBehaviour
{

    Rigidbody2D rb;
    private Animator myAnimator;
    public float walkSpeed = 4f;
    float speedLimiter = 0.7f;
    float inputHorizontal;
    float inputVertical;
    public GameObject Panel;
    private bool inRange = false;
    public ParticleSystem dmgParticleSystem;

    public FloatValue maxHealth;
    public float currentHealth=10;
    public HealthBar healthBar;

    private static bool attackSword;
    private bool attackFist;
    private static bool pickaxeInUse;
    private static bool playerInCollider;

    public bool lvlUp = false;
    public float test;

    private float timerRegen = 0f;
    private float timerTick = 0f;
    private float waitRegen = 8.0f;
    private float waitTick = 1.0f;

    private bool startRegen = false;

    private bool canWalk = true;

    public float exp;
    public int lvl;
    public float maxExp;
    public LevelBar levelBar;
    public FloatValue minPlayerExp;
    
    public static void putPlayerInCollider()
    {
        playerInCollider = true;
    }
    
    public static void takePlayerFromCollider()
    {
        playerInCollider = false;
    }
    
    void Start()
    {
        Panel = GameObject.FindObjectsOfType<GameObject>(true).Where(sr => sr.gameObject.name == "YouDied").ToArray()[0];
        healthBar = (HealthBar)FindObjectOfType<HealthBar>();
        levelBar = (LevelBar)FindObjectOfType<LevelBar>();
        if (OnMapAppearanceMethod.Gateway == OnMapAppearanceMethodEnum.NewGame)
        {
            currentHealth = PlayerPrefs.GetFloat("health");
            exp = PlayerPrefs.GetFloat("exp");
            lvl = PlayerPrefs.GetInt("lvl");
        }
        else
        {
            currentHealth = PlayerPrefs.GetFloat("health-S");
            exp = PlayerPrefs.GetFloat("exp-S");
            lvl = PlayerPrefs.GetInt("lvl-S");
        }
        rb = gameObject.GetComponent<Rigidbody2D>();
        myAnimator = GetComponent<Animator>();
        healthBar.SetMaxHealth(maxHealth.initialValue);
        healthBar.SetHealth(currentHealth);
        //levelBar.SetStartExp(minPlayerExp.initialValue);
        //levelBar.SetExp(exp);
        walkSpeed = 4f;
        ManageLevels(exp);
    }

    public void GetExp(float expValue)
    {
        exp = exp + expValue;
        ManageLevels(exp);
    }

    public void ManageLevels(float exp)
    {
        if (lvl == 1)
        {
            maxExp = 10;
            if (exp >= maxExp)
            {
                lvl = 2;
                lvlUp = true;
                maxExp = 50;
            }
        }
        else if (lvl == 2)
        {
            maxExp = 50;
            if (exp >= maxExp)
            {
                lvl = 3;
                lvlUp = true;
                maxExp = 100;
            }
        }
        else if(lvl == 3)
        {
            maxExp = 100;
            if (exp >= maxExp)
            {
                lvl = 4;
                lvlUp = true;
                maxExp = 200;
            }
        }
    }

    public void TakeDamage(float damage, bool isPanelEnabled = true)
    {
        currentHealth = currentHealth - damage;
        healthBar.SetHealth(currentHealth);

        var em = dmgParticleSystem.emission;
        em.enabled = true;
        StartCoroutine(Timer());
        timerRegen = 0.0f;
        startRegen = false;
        if (currentHealth <= 0)
        {
            if(isPanelEnabled)
            {
                Panel.SetActive(true); 
            }
            walkSpeed = 0f;
            canWalk = false;
        }
    }

    IEnumerator Timer()
    {
        yield return new WaitForSeconds(0.2f);
        var em = dmgParticleSystem.emission;
        em.enabled = false;
    }

    private void HandleAttacks()
    {
        if (canWalk == true)
        {
			if(!EquipmentManager.Instance._weapon)
            return;
		
            if (EquipmentManager.Instance._weapon.Name.Equals("pickaxe_test") && attackSword)
            {
                myAnimator.SetTrigger("pickaxe");
            }
            else if (attackSword && EquipmentManager.Instance._weapon.Name.Equals("Basic_Sword"))
            {
                myAnimator.SetTrigger("attack");
            }
            else if (attackFist)
            {
                myAnimator.SetTrigger("attackFist");
            }
        }

    }

    private void HandleInput()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            attackSword = true;
        }
        if (Input.GetKeyDown(KeyCode.LeftShift))
        {
            attackFist = true;
        }
        if(Input.GetKeyDown(KeyCode.X))
        {
            pickaxeInUse = true;
        }
    }

    private void ResetValues()
    {
        attackSword = false;
        attackFist = false;
        pickaxeInUse = false;
    }

    void Update()
    {
        if (lvlUp == true)
        {
            exp = 0;
            lvlUp = false;
        }

        if (canWalk == true)
        {

        inputHorizontal = Input.GetAxisRaw("Horizontal");
        inputVertical = Input.GetAxisRaw("Vertical");

        myAnimator.SetFloat("moveX", inputHorizontal * walkSpeed);
        myAnimator.SetFloat("moveY", inputVertical * walkSpeed);
        if (inputHorizontal != 0)
        {
            myAnimator.SetFloat("speed", walkSpeed);
        }
        else if (inputVertical != 0)
        {
            myAnimator.SetFloat("speed", walkSpeed);
        }
        else
        {
            myAnimator.SetFloat("speed", 0);
        }

        if (inputHorizontal == 1 || inputHorizontal == -1 || inputVertical == 1 || inputVertical == -1)
        {
            myAnimator.SetFloat("lastMoveX", inputHorizontal);
            myAnimator.SetFloat("lastMoveY", inputVertical);
        }
    
        timerRegen += Time.deltaTime;
        if(timerRegen >= waitRegen)
        {
            startRegen = true;
        }

        if (startRegen == true)
        {
            timerTick += Time.deltaTime;
            if(timerTick >= waitTick)
            {
                if(currentHealth < 10)
                {
                    currentHealth = currentHealth + 1;
                    healthBar.SetHealth(currentHealth);
                    timerTick = 0f;
                }
            }
        }
        PlayerPrefs.SetFloat("health", currentHealth);
        PlayerPrefs.SetFloat("exp", exp); 
        PlayerPrefs.SetInt("lvl", lvl);
        PlayerPrefs.SetFloat("maxExp", maxExp);
        }

        HandleInput();
    }

    void FixedUpdate()
    {
        if(canWalk == true)
        {
            if (inputHorizontal != 0 || inputVertical != 0)
            {
                if (inputHorizontal != 0 && inputVertical != 0)
                {
                    inputHorizontal *= speedLimiter;
                    inputVertical *= speedLimiter;
                }
                rb.velocity = new Vector2(inputHorizontal * walkSpeed, inputVertical * walkSpeed);
            }
            else
            {
                rb.velocity = new Vector2(0f, 0f);
            }
        }

        HandleAttacks();
        ResetValues();
    }

    public void SaveCheckpoint()
    {
        PlayerPrefs.SetFloat("health-S", currentHealth);
        PlayerPrefs.SetFloat("exp-S", exp);
        PlayerPrefs.SetInt("lvl-S", lvl);
    }
}