using System;
using Syntriax.Modules.State;
using UnityEngine;

namespace Syntriax.Modules.Movement
{
    public abstract class MovementBase : MonoBehaviour, IMovement
    {
        protected IStateEnable stateEnable = null;
        protected IMovementController movementController = null;

        public float BaseSpeed { get; set; } = 1f;
        public float MovementMultiplier { get; set; } = 1f;

        public Action<bool> OnTakeOverStateChanged { get; set; } = null;
        private bool _canTakeOver = false;
        public bool CanTakeOver
        {
            get => _canTakeOver;
            protected set
            {
                if (value == _canTakeOver)
                    return;

                _canTakeOver = value;
                OnTakeOverStateChanged?.Invoke(value);
            }
        }

        /// <inheritdoc/>
        public abstract void ApplyMovement();

        public abstract void Move(float x = 0, float y = 0, float z = 0);

        /// <summary>
        /// Called when this <see cref="IMovement"/> is activated.  
        /// </summary>
        protected abstract void OnActivated();

        /// <summary>
        /// Called when this <see cref="IMovement"/> is deactivated.  
        /// </summary>
        protected abstract void OnDeactivated();

        protected virtual void Start()
        {
            stateEnable = GetComponent<IStateEnable>();
            movementController = GetComponent<IMovementController>();

            movementController.OnMovementActivated += OnActivated;
            movementController.OnMovementDeactivated += OnDeactivated;
        }

        /// <summary>
        /// Called when the <see cref="IMovementController"/> activates one of it's <see cref="IMovement"/>s.  
        /// </summary>
        private void OnActivated(IMovement movement)
        {
            if ((object)movement != this)
                return;
            OnActivated();
        }


        /// <summary>
        /// Called when the <see cref="IMovementController"/> activates one of it's <see cref="IMovement"/>s.  
        /// </summary>
        private void OnDeactivated(IMovement movement)
        {
            if ((object)movement != this)
                return;
            OnDeactivated();
        }
    }
}