using SHINT.UI;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.EventSystems;
using WI;

namespace SHINT
{
    public class InteractionManager : MonoBehaviour, ISingle
    {
        //public event Action<Facility> onClickFacility;
        //public event Action<Facility> onEnterFacility;
        //public event Action<Facility> onStayFacility;
        //public event Action<Facility> onExitFacility;
        //public event Action<Facility> onDoubleClickFacility;

        public float assemblyDistance;
        public float injectionDistance;

        Facility[] facilities;
        OrbitalController orbitalController;

        public override void AfterAwake()
        {
            facilities = FindObjectsOfType<Facility>();
            var raycaster = FindSingle<Raycaster>();
            var facilityType = typeof(Facility);
            raycaster.AddTypeLayer(facilityType);
            raycaster.AddFirstEnter(facilityType, (h, c) => OnEnterFacility(c as Facility));
            //raycaster.AddFirstClick(facilityType, (h, c) => onClickFacility.Invoke(c as Facility));
            raycaster.AddFirstExit(facilityType, (h, c) => OnExitFacility(c as Facility));
            //raycaster.AddFirstStay(facilityType, (h, c) => onStayFacility.Invoke(c as Facility));
            raycaster.AddDoubleClickEvent(facilityType, (h, c) => FacilityFocusing(c as Facility));

            orbitalController = FindSingle<OrbitalController>();
        }

        public void OnEnterFacility(Facility f)
        {
            if (f.so == null)
                return;
            f.so.Upscale();
        }

        public void OnExitFacility(Facility f)
        {
            if (f.so == null)
                return;
            f.so.DownScale();
        }

        public void FacilityFocusing(Facility f)
        {
            if (f.info == null)
                return;

            switch (f.info.buildingType)
            {
                case BuildingType.Injection:
                    InjectionCameraMove(f.centerPos + f.adjustCameraTargetPos);
                    break;

                case BuildingType.Assembly:
                    AssemblyCameraMove(f.centerPos + f.adjustCameraTargetPos);
                    break;
            }
            FindSingle<UI_Topbar>().FacilityListChange(f);
            OnNameTag(f);
        }

        void InjectionCameraMove(Vector3 facilityPos)
        {
            var pos = new Vector3(facilityPos.x, 0, facilityPos.z);
            var distance = injectionDistance + facilityPos.y;
            var elevation = 45f;
            var azimuth = 60f;

            orbitalController.SmoothMove(pos, distance, elevation, azimuth);
        }

        void AssemblyCameraMove(Vector3 facilityPos)
        {
            var pos = new Vector3(facilityPos.x, 0, facilityPos.z);
            var distance = assemblyDistance + facilityPos.y;
            var elevation = 45f;
            var azimuth = 330f;
            orbitalController.SmoothMove(pos,distance,elevation,azimuth);
        }
        void OnNameTag(Facility facility)
        {
            foreach (var f in facilities)
            {
                f.nameTag.Deactivate();

                if (facility.Equals(f))
                {
                    f.nameTag.Activate_Animation();
                }
            }
        }
    }
}