using System.Collections.Generic;
using ActionGameFramework.Health;
using Core.Health;
using TowerDefense.Affectors;
using TowerDefense.Towers.Data;
using TowerDefense.UI.HUD;
using UnityEngine;

namespace TowerDefense.Towers
{
    /// <summary>
    /// An individual level of a tower
    /// </summary>
    [DisallowMultipleComponent]
    public class TowerLevel : MonoBehaviour, ISerializationCallbackReceiver
    {
        /// <summary>
        /// The prefab for communicating placement in the scene
        /// </summary>
        public TowerPlacementGhost towerGhostPrefab;

        /// <summary>
        /// Build effect gameObject to instantiate on start
        /// </summary>
        public GameObject buildEffectPrefab;

        /// <summary>
        /// 升级特效
        /// </summary>
        public GameObject UpgradeEffectPrefab;

        /// <summary>
        /// 当前的Level对应的DamagerData.
        /// </summary>
        public Damager levelDamager;

        /// <summary>
        /// Reference to scriptable object with level data on it
        /// </summary>
        public TowerLevelData levelData;

        /// <summary>
        /// The parent tower controller of this tower
        /// </summary>
        protected Tower m_ParentTower;

        /// <summary>
        /// The list of effects attached to the tower
        /// </summary>
        Affector[] m_Affectors;

        /// <summary>
        /// TEST CODE: 是否已经缩放.
        /// </summary>
        protected bool bScaleForCombat = false;

        /// <summary>
        /// Gets the list of effects attached to the tower
        /// </summary>
        protected Affector[] Affectors
        {
            get
            {
                if (m_Affectors == null)
                {
                    m_Affectors = GetComponentsInChildren<Affector>();
                }
                return m_Affectors;
            }
        }

        /// <summary>
        /// The physics layer mask that the tower searches on
        /// </summary>
        public LayerMask mask { get; protected set; }

        /// <summary>
        /// Gets the cost value
        /// </summary>
        public int cost
        {
            get { return levelData.cost; }
        }

        /// <summary>
        /// Gets the sell value
        /// </summary>
        public int sell
        {
            get { return levelData.sell; }
        }

        /// <summary>
        /// Gets the max health
        /// </summary>
        public int maxHealth
        {
            get { return levelData.maxHealth; }
        }

        /// <summary>
        /// Gets the starting health
        /// </summary>
        public int startingHealth
        {
            get { return levelData.startingHealth; }
        }

        /// <summary>
        /// Gets the tower description
        /// </summary>
        public string description
        {
            get { return levelData.description; }
        }

        /// <summary>
        /// Gets the tower description
        /// </summary>
        public string upgradeDescription
        {
            get { return levelData.upgradeDescription; }
        }


        /// <summary>
        /// Initialises the Effects attached to this object
        /// </summary>
        public virtual void Initialize(Tower tower, LayerMask enemyMask, IAlignmentProvider alignment)
        {
            mask = enemyMask;

            foreach (Affector effect in Affectors)
            {
                effect.Initialize(alignment, mask);
                effect.towerPtr = tower;
            }
            m_ParentTower = tower;
        }

        private Transform mat;
        Vector3 normalScale;

        private Vector3 fireScale = new Vector3(1.92f, 1.92f, 2.208f);
        private Vector3 woodScale = new Vector3(1.5f, 1.5f, 2.82f);
        private Vector3 waterScale = new Vector3(1.0f, 1.0f, 1.88f);

        private Vector3 fireOffectp = new Vector3(0f, 0f, -0.15f);

        private Vector3 woodOffectp = new Vector3(0.08f, 0f, 0.2f);

        private void Awake()
        {
            mat = transform.Find("Cube");
            normalScale = new Vector3(1.5f, 1.5f, 1.5f);
        }

        /// <summary>
        /// 未上阵塔缩放，固定缩放
        /// </summary>
        public void NormalScale()
        {
            mat.localScale = normalScale;
            mat.localPosition = Vector3.zero;
        }

        /// <summary>
        /// 上阵塔缩放
        /// </summary>
        public void ResetScale()
        {
            if (transform.name.StartsWith("GrowUpTower"))
            {
                //火元素
                mat.localScale = fireScale;
                mat.localPosition = fireOffectp;
            }
            else if (transform.name.StartsWith("BlinkTower"))
            {
                //木元素
                mat.localScale = woodScale;
                mat.localPosition = woodOffectp;

            }
            else if (transform.name.StartsWith("CopyCatTower"))
            {
                //水元素
                //mat.localScale = woodScale;

                Vector3 scale = mat.localScale;

                if (!this.bScaleForCombat)
                {
                    scale.z *= 1.267f;
                    mat.localScale = scale;
                    Vector3 pos = mat.localPosition;
                    pos.z -= 0.2f;
                    mat.localPosition = pos;
                    bScaleForCombat = true;
                }
            }
        }

        /// <summary>
        /// 当前的TowerLevel设置为对应怪物的材质显示
        /// </summary>
        /// <param name="mat"></param>
        public void SetTowerMonsterMat(Material material)
        {
            if (material == null) return;

            mat.GetComponent<MeshRenderer>().material = material;

            ResetScale();
            // if (transform.name.StartsWith("GrowUpTower") && mat.localPosition != fireOffectp)
            // {
            //     mat.localPosition = fireOffectp;
            // }
            // else if (transform.name.StartsWith("BlinkTower") && mat.localPosition != woodOffectp)
            // {
            //     //木元素
            //     mat.localPosition = woodOffectp;
            // }
            // // 查找子结点:
            // foreach (Transform t in transform.GetComponentsInChildren<Transform>())
            // {
            //     if (t.name == "Cube")
            //     {
            //         t.GetComponent<MeshRenderer>().material = mat;
            //         //Vector3 scale = t.localScale;

            //         // if (!this.bScaleForCombat)
            //         // {
            //         //     scale.z *= 1.267f;
            //         //     t.localScale = scale;
            //         //     Vector3 pos = t.localPosition;
            //         //     pos.z -= 0.2f;
            //         //     t.localPosition = pos;
            //         //     bScaleForCombat = true;
            //         // }
            //     }
            // }
        }

        /// <summary>
        /// A method for activating or deactivating the attached <see cref="Affectors"/>
        /// </summary>
        public void SetAffectorState(bool state, int waveline)
        {
            foreach (Affector affector in Affectors)
            {
                if (affector != null)
                {
                    affector.enabled = state;
                    affector.waveLineID = waveline;
                }
            }
        }


        /// <summary>
        /// Returns a list of affectors that implement ITowerRadiusVisualizer
        /// </summary>
        /// <returns>ITowerRadiusVisualizers of tower</returns>
        public List<ITowerRadiusProvider> GetRadiusVisualizers()
        {
            List<ITowerRadiusProvider> visualizers = new List<ITowerRadiusProvider>();
            foreach (Affector affector in Affectors)
            {
                var visualizer = affector as ITowerRadiusProvider;
                if (visualizer != null)
                {
                    visualizers.Add(visualizer);
                }
            }
            return visualizers;
        }

        /// <summary>
        /// Returns the dps of the tower
        /// </summary>
        /// <returns>The dps of the tower</returns>
        public float GetTowerDps()
        {
            float dps = 0;
            foreach (Affector affector in Affectors)
            {
                var attack = affector as AttackAffector;
                if (attack != null && attack.damagerProjectile != null)
                {
                    dps += attack.GetProjectileDamage() * attack.fireRate;
                }
            }
            return dps;
        }

        public void Kill()
        {
            m_ParentTower.KillTower();
        }

        public void OnBeforeSerialize()
        {
        }


        /// <summary>
        /// 获取当前TowerLevel对应的AttackRise.
        /// </summary>
        public float attackRise { get { return m_ParentTower.attackRise; } }

        public void OnAfterDeserialize()
        {
            // Setting this member to null is required because we are setting this value on a prefab which will 
            // persists post run in editor, so we null this member to ensure it is repopulated every run
            m_Affectors = null;
        }

        /// <summary>
        /// Insntiate the build particle effect object
        /// </summary>
        void Start()
        {

        }

        /// <summary>
        /// 播放升级特效
        /// </summary>
        public void PlayUpGradeEffect()
        {
            if (UpgradeEffectPrefab != null)
            {
                GameObject obj = Instantiate(UpgradeEffectPrefab);
                obj.transform.position = gameObject.transform.position;
                ParticleSystem ps = obj.GetComponent<ParticleSystem>();

                if (ps == null)
                    ps = obj.transform.GetChild(0).GetComponent<ParticleSystem>();

                Vector3 pos = obj.transform.position;
                pos.y = 5f;
                obj.transform.position = pos;
                ps.Play();
                Destroy(obj, ps.main.duration);
            }
        }
    }
}