using Unity.VisualScripting;
using UnityEngine;

public class WeaponsController : MonoBehaviour
{
    public float range;
    public Transform cam;
    public LayerMask validLayers;
    public GameObject impactEffect, damageEffect, muzzleFlare; // Reference to the impact effect and muzzle flare prefabs
    public float timeBetweenShots = .2f, shotCounter, flareDisplayTime = 0.1f,damageAmount = 15f; // Time between shots and flare display duration
    public bool canAutoFire; // Flag to enable or disable auto fire
    private float flareCounter;
    public int currentAmmo = 100, clipSize = 20, remainingAmmo = 300, pickupAmount; // Current ammo count, clip size, and remaining ammo
    private UIController uiCon; // Reference to the UIController script for updating ammo text
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        muzzleFlare.SetActive(false);
        uiCon = FindFirstObjectByType<UIController>(); // Find and reference the UIController in the scene
        
        // Initialize ammo counts
        int ammoToLoad = Mathf.Min(clipSize, remainingAmmo + currentAmmo);
        currentAmmo = ammoToLoad;
        remainingAmmo = (remainingAmmo + currentAmmo) - ammoToLoad;

        uiCon.UpdateAmmoText(currentAmmo, remainingAmmo); // Update UI on start
    }

    // Update is called once per frame
    void Update()
    {
        if (flareCounter > 0)
        {
            flareCounter -= Time.deltaTime; // Decrease flare counter over time
            if (flareCounter <= 0)
            {
                muzzleFlare.SetActive(false); // Deactivate muzzle flare effect when counter reaches zero
            }
        }
    }
    public void Shoot()
    {
        if (currentAmmo <= 0) return; // Check if there is ammo left before shooting
        {
            RaycastHit hit;
            if (Physics.Raycast(cam.position, cam.forward, out hit, range, validLayers))
            {
                Debug.Log("Hit: " + hit.collider.name);
                if (hit.collider.CompareTag("Enemy"))
                {
                    Instantiate(damageEffect, hit.point, Quaternion.identity); // Create damage effect at enemy hit point
                    hit.transform.GetComponent<EnemyController>().TakeDamage(damageAmount); // Call TakeDamage method on the enemy's health script
                }
                else
                {
                    Instantiate(impactEffect, hit.point, Quaternion.identity); // Create impact effect at hit point
                }
            }
            muzzleFlare.SetActive(true); // Activate muzzle flare effect
            flareCounter = flareDisplayTime; // Reset flare counter
            shotCounter = timeBetweenShots; // Reset shot counter for auto fire
            currentAmmo--; // Decrease ammo count by 1 when shooting
            uiCon.UpdateAmmoText(currentAmmo, remainingAmmo); // Update the ammo text in the UI
        }
    }
    public void ShootHeld()
    {
        shotCounter -= Time.deltaTime; // Decrease shot counter over time
        if (shotCounter <= 0 && canAutoFire) // Check if shot counter is zero and auto fire is enabled
        {
            Shoot(); // Call Shoot method for continuous shooting
            shotCounter = timeBetweenShots; // Reset shot counter for next shot
        }
    }
    public void Reload()
    {
        int ammoNeeded = clipSize - currentAmmo; // Calculate ammo needed to fill the clip

        if (ammoNeeded > 0 && remainingAmmo > 0) // Check if reload is needed and possible
        {
            int ammoToReload = Mathf.Min(ammoNeeded, remainingAmmo); // Determine how much ammo to reload
            currentAmmo += ammoToReload; // Add ammo to the current clip
            remainingAmmo -= ammoToReload; // Subtract reloaded ammo from remaining ammo
        }

        uiCon.UpdateAmmoText(currentAmmo, remainingAmmo); // Update the ammo text in the UI
    }
    public void GetAmmo()
    {
        remainingAmmo += pickupAmount; // Increase remaining ammo by the pickup amount
        uiCon.UpdateAmmoText(currentAmmo, remainingAmmo); // Update the ammo text in the UI
    }
}