using System.Collections;
using System.Reflection;
using CLre.API.Engines;
using Game.Building;
using Game.Character;
using Game.Utilities;
using HarmonyLib;
using Svelto.ECS;
using Svelto.Tasks;
using UnityEngine;
using voxelfarm.VFCol;

namespace CLre.Fixes
{
    [Bugfix(name = "UnderStructureCollider",
        description = "Prevent passing through structures from below a bit better",
        more = "https://trello.com/c/nfuaZWQZ/10-passing-through-structures",
        component = BugfixType.Initialiser, id = 7)]
    public static class UnderStructureCollider
    {
        public static void Init()
        {
#if DEBUG
            MainLevel_BuildDeprecatedEngines_Patch.afterBuildEngines.Add(new CharacterGroundedCheckEngine());
#endif
            MainLevel_BuildDeprecatedEngines_Patch.afterBuildEngines.Add(new CharacterUnderStructureRaycastEngine());
        }
    }
    
    [Bugfix(name = "UnderStructureCollider",
        description = "Prevent passing through structures from below a bit better",
        more = "https://trello.com/c/nfuaZWQZ/10-passing-through-structures",
        component = BugfixType.HarmonyPatch, id = 7)]
    [HarmonyPatch(typeof(VFColUtility), "Move")]
    class VFCOlUtility_Move_Patch
    {
        internal static bool Override = false;

        [HarmonyPostfix]
        public static void AfterMethodCall(ref Vector3 __result)
        {
#if DEBUG
            API.Utility.Logging.MetaLog("Intercepting CharacterMovementEngine.ApplyForces(...)");
#endif
            if (Override)
            {
                if (__result.y > 0)
                {
                    __result = Vector3.zero;
                }
            }
        }
    }

#if DEBUG
    [Bugfix(name = "UnderStructureCollider",
        description = "Prevent passing through structures from below a bit better",
        more = "https://trello.com/c/nfuaZWQZ/10-passing-through-structures",
        component = BugfixType.Debug, id = 7)]
    public class CharacterGroundedCheckEngine : SingleEntityViewEngine<CharacterOnStructureNode>, ICLreEngine
    {
        private CharacterOnStructureNode _characterOnStructureNode;
        
        public void Ready() {}

        public IEntitiesDB entitiesDB { get; set; }
        public IEntityFactory entityFactory { get; set; }
        
        protected override void Add(CharacterOnStructureNode entityView)
        {
            _characterOnStructureNode = entityView;
            CheckNode().Run();
        }

        protected override void Remove(CharacterOnStructureNode entityView)
        {
            _characterOnStructureNode = null;
        }

        public IEnumerator CheckNode()
        {
            while (_characterOnStructureNode != null)
            {
                if (_characterOnStructureNode.characterGroundedRaycastComponent.didHit)
                {
                    if (_characterOnStructureNode.characterGroundedRaycastComponent.hitResult.transform != null)
                    {
                        API.Utility.Logging.MetaLog($"HIT: {_characterOnStructureNode.characterGroundedRaycastComponent.hitResult.transform.tag} (audio: '{_characterOnStructureNode.characterOnStructureComponent.characterPositionStructureAudioSwitch.value}')");
                        RaycastHit raycastHitInfo = _characterOnStructureNode.characterGroundedRaycastComponent.hitResult;
                        if (raycastHitInfo.transform.tag == GameTags.STRUCTURE_TAG)
                        {
                            int instanceID = raycastHitInfo.transform.GetComponentInParent<DEPRECATED_REMOVE_EntityProxy>().gameObject.GetInstanceID();
                            if (entitiesDB.TryQueryEntityView(instanceID, DEPRECATED_SveltoExtensions.DEPRECATED_GROUP,
                                out PlacedStructureNode entityView))
                            {
                                API.Utility.Logging.MetaLog($"Structure: {entityView.structureNameComponent.resourceName}");
                            }
                        }
                    }
                    else
                    {
                        API.Utility.Logging.MetaLog("No transform (not on a structure?)");
                    }
                    
                }
                else
                {
                    API.Utility.Logging.MetaLog("No hit");
                }
                yield return null;
            }
        }
    }
#endif

    [Bugfix(name = "UnderStructureCollider",
        description = "Prevent passing through structures from below a bit better",
        more = "https://trello.com/c/nfuaZWQZ/10-passing-through-structures",
        component = BugfixType.Miscellaneous, id = 7)]
    public class CharacterUnderStructureRaycastEngine : SingleEntityViewEngine<CharacterMovementNode>, ICLreEngine
    {
        private bool _playerExists = false;

        private int _layer = GameLayers.CARD_INTERACTABLE;
        
        public void Ready()
        {
        }

        public IEntitiesDB entitiesDB { get; set; }
        public IEntityFactory entityFactory { get; set; }
        
        protected override void Add(CharacterMovementNode entityView)
        {
            _playerExists = true;
            RaycastStructureCheck(entityView.ID.entityID).RunOnScheduler(StandardSchedulers.physicScheduler);
        }

        protected override void Remove(CharacterMovementNode entityView)
        {
            _playerExists = false;
        }

        public IEnumerator RaycastStructureCheck(int playerId)
        {
            while (_playerExists)
            {
                CharacterMovementNode cmn;
                while (entitiesDB.TryQueryEntityView(playerId, DEPRECATED_SveltoExtensions.DEPRECATED_GROUP, out cmn))
                {
                    Vector3 position = cmn.characterMovementComponent.characterController.transform.position;
                    CharacterController cc = cmn.characterMovementComponent.characterController;
                    RaycastHit rayInfo;
                    bool didHit = Physics.SphereCast(
                        position, //+ Vector3.up * (cc.height * 0.5f), // center of player
                        cc.radius,
                        Vector3.up,
                        out rayInfo,
                        cc.height, //* 0.5f - cc.radius * 0.05f,
                        _layer);
                    if (didHit && rayInfo.transform != null)
                    {
                        if (rayInfo.transform.CompareTag(GameTags.STRUCTURE_TAG))
                        {
#if DEBUG
                            API.Utility.Logging.MetaLog("Structure is above me!");
#endif
                            VFCOlUtility_Move_Patch.Override = true;
                        }
                    }
                    else
                    {
#if DEBUG
                        API.Utility.Logging.MetaLog("No structure above :(");
#endif
                        VFCOlUtility_Move_Patch.Override = false;
                    }
                    yield return null;
                }

                yield return null;
            }
            
        }
    }
}