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

/*
--------------------------------------
    Project: Programing assessment
    Standard: 91906 (AS3.7) v.1
    School: Tauranga Boys' College
    Author: Rauputu Noah Phizacklea
    Date: August 2024
    Unity: 2021.3.18f
---------------------------------------
*/

public class PlayerCombat : MonoBehaviour
{
    public Animator animator; // Animator for attack animation
    public Transform attackPoint; // Point from which attack range is measured
    public LayerMask enemyLayers; // Layers that represent enemies
    public float attackRange = 0.5f; // Attack range
    public int attackDamage = 20; // Damage dealt per attack
    public float attackRate = 2f; // Attacks per second
    private float nextAttackTime = 0f; // Time for the next attack

    private PlayerStamina playerStamina; // Reference to player stamina
    public int attackStaminaCost = 10; // Stamina cost per attack
    AudioManager audioManager; // Reference to the audio manager

    void Awake() 
    {
        // Initialize audio manager
        audioManager = GameObject.FindGameObjectWithTag("Audio").GetComponent<AudioManager>();
    }

    void Start()
    {
        // Initialize player stamina
        playerStamina = GetComponent<PlayerStamina>();
    }

    void Update()
    {
        // Check if it's time for the next attack
        if (Time.time >= nextAttackTime)
        {
            // Perform attack if mouse button is released and stamina is sufficient
            if (Input.GetMouseButtonUp(0) && playerStamina.UseStamina(attackStaminaCost))
            {
                Attack();
                nextAttackTime = Time.time + 1f / attackRate; // Set time for next attack
            }
        }
    }

    void Attack()
    {
        // Trigger attack animation
        animator.SetTrigger("isAttacking");

        // Play attack sound effect
        audioManager.PlaySFX(audioManager.swordAttackSFX);

        // Detect and damage enemies in attack range
        Collider2D[] hitEnemies = Physics2D.OverlapCircleAll(attackPoint.position, attackRange, enemyLayers);
        foreach (Collider2D enemy in hitEnemies)
        {
            // Damage boss if hit
            BossHealth bossHealth = enemy.GetComponent<BossHealth>();
            if (bossHealth != null)
            {
                bossHealth.TakeDamage(attackDamage);
            }

            // Damage enemy if hit
            EnemyHealth enemyHealth = enemy.GetComponent<EnemyHealth>();
            if (enemyHealth != null)
            {
                enemyHealth.TakeDamage(attackDamage);
            }
        }
    }

    void OnDrawGizmosSelected()
    {
        // Draw attack range gizmo in editor
        if (attackPoint != null)
        {
            Gizmos.DrawWireSphere(attackPoint.position, attackRange);
        }
    }
}