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

public class Staff : MonoBehaviour, IWeapon
{
    [SerializeField] private WeaponInfo weaponInfo; // Information about the staff weapon
    [SerializeField] private GameObject magicLaser; // Prefab for the magic laser projectile
    [SerializeField] private Transform magicLaserSpawnPoint; // Spawn point for the magic laser

    private Animator myAnimator; // Reference to the Animator component

    readonly int ATTACK_HASH = Animator.StringToHash("Attack"); // Hash for the attack animation trigger

    private void Awake() {
        myAnimator = GetComponent<Animator>(); // Get the Animator component attached to this GameObject
    }

    private void Update() {
        MouseFollowWithOffset(); // Update weapon rotation to follow the mouse with an offset
    }

    public void Attack() {
        myAnimator.SetTrigger(ATTACK_HASH); // Trigger the attack animation
    }

    // Animation event to spawn the magic laser projectile
    public void SpawnStaffProjectileAnimEvent() {
        GameObject newLaser = Instantiate(magicLaser, magicLaserSpawnPoint.position, Quaternion.identity); // Create a new magic laser
        newLaser.GetComponent<MagicLaser>().UpdateLaserRange(weaponInfo.weaponRange); // Set the laser's range based on weapon info
    }

    public WeaponInfo GetWeaponInfo() {
        return weaponInfo; // Return the weapon info
    }

    // Helper method to rotate the weapon to follow the mouse cursor with an offset
    private void MouseFollowWithOffset() {
        Vector3 mousePos = Input.mousePosition; // Get the mouse position on the screen
        Vector3 playerScreenPoint = Camera.main.WorldToScreenPoint(PlayerController.Instance.transform.position); // Convert player position to screen coordinates

        float angle = Mathf.Atan2(mousePos.y, mousePos.x) * Mathf.Rad2Deg; // Calculate the angle between the player and mouse cursor

        // Rotate the weapon based on the mouse position relative to the player
        if (mousePos.x < playerScreenPoint.x) {
            ActiveWeapon.Instance.transform.rotation = Quaternion.Euler(0, -180, angle); // Rotate weapon when facing left
        } else {
            ActiveWeapon.Instance.transform.rotation = Quaternion.Euler(0, 0, angle); // Rotate weapon when facing right
        }
    }
}