using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using SiegeSong;

namespace SiegeSong
{
    public class Selector : MonoBehaviour
    {
        public Selectable Target;

        public InventoryManager Inventory;

        public Text TightSelectorText;
        public Image TightSelectorIcon;
        public Text LooseSelectorText;
        public Image LooseSelectorIcon;
        public GameObject LooseSelector;
        public CameraManager CameraManager;
        public Sprite DefaultIcon;
        public bool InteractInputNewState;

        private Color dangerColor = Color.red;
        private Color defaultColor = Color.white;
        private float tightSelectorMaxDistance = 2.0f;
        private bool interacting;

        void Start()
        {
        
        }

        void Update()
        {
            var cameraObject = CameraManager.ActiveCamera;
            if (Physics.Raycast(cameraObject.transform.position, cameraObject.transform.forward, out RaycastHit raycastHit))
            {
                if (Vector3.Distance(cameraObject.transform.position, raycastHit.point) < tightSelectorMaxDistance)
                {
                    var selectable = raycastHit.transform.gameObject.GetComponent<Selectable>();
                    if (selectable == null)
                        selectable = raycastHit.transform.gameObject.GetComponentInChildren<Selectable>();
                    if (selectable == null && raycastHit.transform.parent != null)
                        selectable = raycastHit.transform.parent.gameObject.GetComponent<Selectable>();
                    if (selectable == null && raycastHit.transform.parent != null)
                        selectable = raycastHit.transform.parent.gameObject.GetComponent<Selectable>();
                    if (selectable == null && raycastHit.transform.parent != null && raycastHit.transform.parent.parent != null)
                        selectable = raycastHit.transform.parent.parent.gameObject.GetComponent<Selectable>();
                    if (selectable == null && raycastHit.transform.parent != null && raycastHit.transform.parent.parent != null && raycastHit.transform.parent.parent != null)
                        selectable = raycastHit.transform.parent.parent.parent.gameObject.GetComponent<Selectable>();

                    if (selectable != null && selectable.enabled)
                    {
                        Target = selectable;
                        TightSelectorText.text = $"{selectable.Interaction} {selectable.Name}";
                        TightSelectorIcon.sprite = selectable.Icon;
                        if (selectable.Danger)
                        {
                            TightSelectorText.color = dangerColor;
                        }
                        else
                        {
                            TightSelectorText.color = defaultColor;
                        }
                        if (InteractInputNewState)
                        {
                            if (!interacting)
                            {
                                interacting = true;
                                selectable.Activate(Inventory);
                            }
                        }
                        else
                        {
                            interacting = false;
                        }
                    }
                    else
                    {
                        Target = null;
                        TightSelectorText.text = $"";
                        TightSelectorIcon.sprite = DefaultIcon;
                    }
                }
                else
                {
                    Target = null;
                    TightSelectorText.text = $"";
                    TightSelectorIcon.sprite = DefaultIcon;
                }
            }
            else
            {
                Target = null;
                TightSelectorText.text = $"";
                TightSelectorIcon.sprite = DefaultIcon;
            }
        }
    }
}