using System;
using Unity.Netcode;
using UnityEngine;
using UnityEngine.UI;

namespace DefaultNamespace
{
    public class NetworkPlayer : NetworkBehaviour
    {
        [Header( "Player Settings" )]
        [SerializeField] private float speed = 10.0f;
        [SerializeField] private float initialHealth = 100.0f;

        [Header( "Elements")]
        [SerializeField] private Camera playerCamera;
        [SerializeField] private Canvas playerCanvas;
        [SerializeField] private Image playerHealthBar;

        [Header( "Prefabs" )]
        [SerializeField] private NetworkObject projectilePrefab;

        private NetworkVariable<float> _health = new NetworkVariable<float>();

        public override void OnNetworkSpawn()
        {
            playerCamera.gameObject.SetActive(IsLocalPlayer);
            playerCanvas.gameObject.SetActive(IsLocalPlayer);

            if (IsLocalPlayer)
            {
                _health.OnValueChanged += OnValueChanged;
            }

            if (IsServer)
            {
                _health.Value = initialHealth;
            }
        }

        public override void OnNetworkDespawn()
        {
            if (IsLocalPlayer)
            {
                _health.OnValueChanged -= OnValueChanged;
            }
        }

        private void OnValueChanged(float previousValue, float newValue)
        {
            playerHealthBar.fillAmount = newValue / initialHealth;
        }

        private void Update()
        {
            if (!IsLocalPlayer) return;

            Vector3 input = new Vector3(Input.GetAxis("Horizontal"), 0.0f, Input.GetAxis("Vertical"));
            transform.Translate(input * (speed * Time.deltaTime));

            if (Input.GetButtonDown("Fire1"))
            {
                FireProjectileRpc();
            }
        }

        [Rpc(SendTo.Server)]
        private void FireProjectileRpc()
        {
            NetworkObject projectile = Instantiate(projectilePrefab, transform.position, Quaternion.identity);
            projectile.Spawn(true);
        }
    }
}