using System;
using System.Text;
using Cielonos.MainGame.Buffs.Character;
using Cielonos.MainGame.Characters.Inventory;
using SickscoreGames.HUDNavigationSystem;
using Sirenix.OdinInspector;
using SLSUtilities.General;
using SLSUtilities.WwiseAssistance;
using SLSUtilities.FunctionalAnimation;
using UniRx;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.Serialization;

namespace Cielonos.MainGame.Characters
{
    public enum Fraction
    {
        Player = 0,
        AlliedMinion = 1,
        Enemy = 10,
        Neutral = 20
    }
    
    public partial class CharacterBase : SerializedMonoBehaviour, IFuncAnimExecutor
    {
        public Fraction fraction;
        public Transform centerPoint => bodyPartsSc.flexibleCenterPoint;
        public Vector3 centerPosition => centerPoint.position;
        
        [TitleGroup("Data")]
        public AttributeData attributeData;
        public VFXData vfxData;
        public BlockData blockData;
        public BaseAnimationGroup baseAnimationGroup;
        
        [TitleGroup("Submodules")] 
        public SelfTimeSubmodule selfTimeSm;
        public AttributeSubmodule attributeSm;
        
        public EventSubmodule eventSm;
        public BuffSubmodule buffSm;
        public StatusSubmodule statusSm;
        
        [TitleGroup("Subcontrollers")] 
        public CollisionSubcontrollerBase collisionSc;
        public MovementSubcontrollerBase movementSc;
        public AnimationSubcontrollerBase animationSc;
        public RenderSubcontrollerBase renderSc;
        public BodyPartsSubcontroller bodyPartsSc;
        public AudioSubcontroller audioSc;
        public ReactionSubcontroller reactionSc;
        public FeedbackSubcontroller feedbackSc;
        
        [TitleGroup("Navigation")]
        public HUDNavigationElement navigationElement;

        protected void Awake()
        {
            InitializeSubmodules();
            InitializeSubcontrollers();
        }

        protected virtual void Start()
        {
            vfxData?.Initialize(this);
            selfTimeSm?.SetUp(this);
            
            if (fraction == Fraction.Enemy)
            {
                BattleManager.EnemySm.activeEnemiesList.Add(this);
            }
        }

        protected virtual void Update()
        {
            selfTimeSm.Update();
            buffSm.Update();
        }

        public virtual void Die()
        {
            Destroy(gameObject);//TODO: 后续改为死亡动画+回收
        }
    }

    public partial class CharacterBase
    {
        protected virtual void InitializeSubmodules()
        {
            selfTimeSm ??= new SelfTimeSubmodule(this);
            attributeSm ??= new AttributeSubmodule(this);
            eventSm ??= new EventSubmodule(this);
            buffSm ??= new BuffSubmodule(this);
            statusSm ??= new StatusSubmodule(this);
        }
        
        protected virtual void InitializeSubcontrollers()
        {
            renderSc?.Initialize();
            movementSc?.Initialize();
            animationSc?.Initialize();
            collisionSc?.Initialize();
            bodyPartsSc?.Initialize();
            audioSc?.Initialize();
            reactionSc?.Initialize();
            feedbackSc?.Initialize();
        }
    }

    public partial class CharacterBase
    {
        public float GetDamageValue(AttackValue attackValue)
        {
            string dealtMultiplier = attackValue.attackType.AttackTypeToString() + "DamageDealtMultiplier";
            string gainMultiplier = attackValue.attackType.AttackTypeToString() + "DamageGainMultiplier";
            
            float baseDamage = attackValue.damage;

            baseDamage *= attackValue.attacker is not null ? attackValue.attacker.attributeSm[dealtMultiplier] : 1;
            baseDamage *= attributeSm[gainMultiplier];

            baseDamage *= attackValue.attacker is not null ? attackValue.attacker.attributeSm["FinalDamageDealtMultiplier"] : 1;
            baseDamage *= attributeSm["FinalDamageGainMultiplier"];
            
            return (baseDamage + attackValue.additionalFlatDamage) * attackValue.damageMultiplier;
        }

        public void TakeDamage(ref AttackResult attackResult)
        {
            float damage = GetDamageValue(attackResult.attackValue);
            if (attributeSm.Has("Shield") && attributeSm["Shield"] > 0)
            {
                attackResult.shieldBlockedDamage = Mathf.Min(damage, attributeSm["Shield"]);
                //GeneralUtilities.InstantiateBlockedDamageNumber(flexibleCenterPoint.position, blockedDamage);
                
                if(damage > attributeSm["Shield"])
                {
                    damage -= attributeSm["Shield"];
                    attributeSm["Shield"] = 0;
                }
                else
                {
                    attributeSm["Shield"] -= damage;
                    damage = 0;
                }
            }

            attributeSm["Health"] -= damage;
            attackResult.finalDamage = damage;
            
            if (attributeSm["Health"] <= 0)
            {
                attackResult.causedDeath = true;
                attributeSm["Health"] = 0;
                Die();
            }
            else
            {
                attackResult.causedDeath = false;
            }
        }
    }

    public partial class CharacterBase
    {
        public virtual bool CheckBreakthrough(BreakthroughType breakthroughType)
        {
            return !reactionSc.breakthroughResistances[breakthroughType].Value;
        }
        
        public virtual bool CheckDisruption(DisruptionType disruptionType)
        {
            return animationSc.fullBodyFuncAnimSm.CheckDisruption(disruptionType);
        }
        
        public virtual bool GetHit(BreakthroughType breakthroughType, out float recoveryTime,
            DisruptionType disruptionType = DisruptionType.NormalExternal, 
            Vector3 direction = default, string funcAnimName = "")
        {
            renderSc.GetHitBlink();
            
            float intensity = breakthroughType switch
            {
                BreakthroughType.None => 0,
                BreakthroughType.Weak => 0.2f,
                BreakthroughType.Medium => 0.4f,
                BreakthroughType.Heavy or BreakthroughType.Disruption or BreakthroughType.Forced => 0.8f,
                _ => 0
            };
            
            if (string.IsNullOrEmpty(funcAnimName))
            {
                funcAnimName = GetHitFuncAnimName(breakthroughType, direction);
            }
            
            if (CheckBreakthrough(breakthroughType))
            {
                if (!animationSc.fullBodyFuncAnimSm.Stop(disruptionType))
                {
                    recoveryTime = 0f;
                    return true;
                }

                if (breakthroughType >= BreakthroughType.Medium)
                {
                    animationSc.PlayGetHitAnimation(funcAnimName, out recoveryTime);
                }
                else
                {
                    recoveryTime = 0f;
                    animationSc.PlayGetHitBoneShake(intensity, direction);
                }
                
                statusSm.AddStatus(StatusType.Stun, recoveryTime);
                return true;
            }
            
            recoveryTime = 0f;
            animationSc.PlayGetHitBoneShake(intensity, direction);
            return false;
        }
        
        protected virtual string GetHitFuncAnimName(BreakthroughType breakthroughType, Vector3 direction)
        {
            string prefix = "GetHitMedium";
            
            if (breakthroughType >= BreakthroughType.Medium)
            {
                prefix = breakthroughType switch
                {
                    BreakthroughType.Medium => "GetHitMedium",
                    BreakthroughType.Heavy => "GetHitHeavy",
                    BreakthroughType.Disruption => "GetHitHeavy",
                    BreakthroughType.Forced => "GetHitForced",
                    _ => "GetHit"
                };
            }
            
            string directionStr = "Front";
            if (direction != default)
            {
                float angle = Vector3.SignedAngle(transform.forward, direction, Vector3.up);
                directionStr = angle switch
                {
                    > -45f and <= 45f => "Back",
                    > 45f and <= 135f => "Left",
                    > -135f and <= -45f => "Right",
                    _ => "Front"
                };

                if (directionStr != "Front" && !animationSc.fullBodyFuncAnimSm.collection.ContainsKey(prefix + directionStr))
                {
                    directionStr = "Front";
                }
            }

            string fullName = prefix + directionStr;
            
            if (!animationSc.fullBodyFuncAnimSm.collection.ContainsKey(fullName))
            {
                if (prefix == "GetHitForced")
                {
                    prefix = "GetHitHeavy"; //如果没有专门的“强制等级”受击动画，就使用“重度等级”的动画
                    fullName = prefix + directionStr;
                }
            }
            
            return fullName;
        }
    }

    public partial class CharacterBase
    {
        public Vector2 GetNormalizedScreenPosition(Camera cam = null)
        {
            if (this is Player player)
            {
                cam ??= player.viewSc.playerCamera;
            }
            else
            {
                if (cam == null)
                {
                    throw new ArgumentNullException(nameof(cam), "Camera must be provided for non-player characters.");
                }
            }
            
            return SpaceConverter.WorldPointToNormalizedScreenPoint(centerPoint.position, cam);
        }
    }
}