using UnityEngine;

[DisallowMultipleComponent]
public sealed class CannonControlBinder : MonoBehaviour
{
    [SerializeField] private NetworkCannonController cannon;
    [SerializeField] private NetworkPhysicalLeverInteractable fireLever;
    [SerializeField] private NetworkButtonInteractable decreaseTimerButton;
    [SerializeField] private NetworkButtonInteractable increaseTimerButton;

    private bool bound;

    private void Update()
    {
        if (!bound)
            TryBind();
    }

    private void OnDisable() => Unbind();

    private void TryBind()
    {
        if (cannon == null || !cannon.IsSpawned || !cannon.IsServer)
            return;

        if (fireLever != null)
            fireLever.StateChanged += HandleFireLever;
        if (decreaseTimerButton != null)
            decreaseTimerButton.Pressed += HandleDecreaseTimer;
        if (increaseTimerButton != null)
            increaseTimerButton.Pressed += HandleIncreaseTimer;
        bound = true;
    }

    private void Unbind()
    {
        if (!bound)
            return;
        if (fireLever != null)
            fireLever.StateChanged -= HandleFireLever;
        if (decreaseTimerButton != null)
            decreaseTimerButton.Pressed -= HandleDecreaseTimer;
        if (increaseTimerButton != null)
            increaseTimerButton.Pressed -= HandleIncreaseTimer;
        bound = false;
    }

    private void HandleFireLever(bool isActivated) => cannon.SetFireRequested(isActivated);
    private void HandleDecreaseTimer() => cannon.RequestDecreaseShotDelay();
    private void HandleIncreaseTimer() => cannon.RequestIncreaseShotDelay();
}