using UnityEngine;
using UnityEngine.InputSystem;

namespace Code.Input
{
    public class InputService : IInputService
    {
        private readonly InputActionAsset _inputActionAsset;
        private InputAction _lmbInteractAction;
        
        public Vector2 MainMenuParalax { get; private set; }
        
        public Vector2 LookInput { get; private set; }
        public Vector2 MoveInput { get; private set; }
        public bool JumpPressed { get; private set; }
        public bool SprintHeld { get; private set; }
        public bool AttackPressed { get; private set; }

        public InputService(InputActionAsset inputActionAsset)
        {
            _inputActionAsset = inputActionAsset;
            SetupInputCallbacks();
        }

        private void SetupInputCallbacks()
        {
            SetupMainMenuInputCallbacks();
            SetupGameplayInputCallbacks();
        }

        private void SetupGameplayInputCallbacks()
        {
            var map = _inputActionAsset.actionMaps[(int)ActionMapping.Gameplay];
            BindVector2(map, "Move", v => MoveInput = v);
            BindButton(map, "Jump", v => JumpPressed = v);
            BindButton(map, "Sprint", v => SprintHeld = v);
            BindButton(map, "Attack", v => AttackPressed = v);
        }

        private void SetupMainMenuInputCallbacks()
        {
            var map = _inputActionAsset.actionMaps[(int)ActionMapping.MainMenu];
            BindVector2(map, "Parallax", v => MainMenuParalax = v);
        }

        private void BindButton(InputActionMap map, string actionName, System.Action<bool> setter)
        {
            var action = map.FindAction(actionName);

            if (action == null)
                return;

            action.performed += _ => setter(true);
            action.canceled += _ => setter(false);
        }

        private void BindVector2(InputActionMap map, string actionName, System.Action<Vector2> setter)
        {
            var action = map.FindAction(actionName);

            if (action == null)
                return;

            action.performed += ctx => setter(ctx.ReadValue<Vector2>());
            action.canceled += _ => setter(Vector2.zero);
        }
        
        private void BindAxis(InputActionMap map, string actionName, System.Action<float> setter)
        {
            var action = map.FindAction(actionName);

            if (action == null)
                return;

            action.performed += ctx => setter(ctx.ReadValue<float>());
            action.canceled += _ => setter(0f);
        }

        public void EnableMap(ActionMapping actionMap)
        {
            _inputActionAsset.actionMaps[(int)actionMap].Enable();
        }

        public void DisableMap(ActionMapping actionMap)
        {
            _inputActionAsset.actionMaps[(int)actionMap].Disable();
        }

        public void DebugBindAction(int mapId, int actionId, System.Action<InputAction.CallbackContext> action) =>
            _inputActionAsset.actionMaps[mapId].actions[actionId].performed += action;

        public void DebugUnbindAction(int mapId, int actionId, System.Action<InputAction.CallbackContext> action) =>
            _inputActionAsset.actionMaps[mapId].actions[actionId].performed -= action;
    }
}