using System.Collections.Generic;
using System.Linq;
using UnityEngine;

namespace Game
{
    /// <summary>
    /// 角色不具备战斗逻辑，所有战斗逻辑由战斗系统完成
    /// 自走棋的角色不具备自动回血功能，只能通过技能buff进行回血
    /// </summary>
    public interface ICharacter
    {
        HeroConfig Config { get; }
        GameObject Go { get; }

        string Name { get; }
        string Description { get; }
        int Level { get; }
        float Hp { get; }
        float Mp { get; }
        float Attack { get; }
        float Defense { get; }
        float MoveSpeed { get; }
        float AttackSpeed { get; }
        bool IsDead { get; }

        IReadOnlyList<IEquipment> Equipments { get; }
        IReadOnlyList<Buff> Buffs { get; }

        bool AddEquipment(IEquipment equipment);
        bool RemoveAllEquipment(out List<IEquipment> equipments);

        void OnAttack(Character character);
    }

    public class Character : ICharacter
    {
        private HeroConfig _characterConfig;
        private GameObject _go;
        private List<IEquipment> _equipments;
        private string _name;
        private string _description;
        private int _level;
        private float _hp;
        private float _mp;
        private float _attack;
        private float _defense;
        private float _moveSpeed;
        private float _attackSpeed;

        private float tmphp;
        private float tmpmp;
        private float tmpattack;
        private float tmpdefense;
        private float tmpmoveSpeed;
        private float tmpattackSpeed;
        private IReadOnlyList<Buff> _buffs;

        public HeroConfig Config => _characterConfig;

        public GameObject Go => _go;

        public string Name => _name;

        public string Description => _description;

        public int Level => _level;

        public float Hp => _hp + tmphp;

        public float Mp => _mp + tmpmp;

        public float Attack => _attack + tmpattack;

        public float Defense => _defense + tmpdefense;

        public float MoveSpeed => _moveSpeed + tmpmoveSpeed;

        public float AttackSpeed => _attackSpeed + tmpattackSpeed;

        public bool IsDead => _hp <= 0;

        public IReadOnlyList<IEquipment> Equipments => _equipments;

        public IReadOnlyList<Buff> Buffs => _buffs;

        public Character(HeroConfig characterConfig, GameObject go)
        {
            _characterConfig = characterConfig;
            _go = go;
            _name = _characterConfig.BasicStats.Name;
            _description = _characterConfig.BasicStats.Description;
            // _hp = _characterConfig.MaxHp;
            // _mp = _characterConfig.MaxMp;
            _equipments = new List<IEquipment>();
        }

        public bool AddEquipment(IEquipment equipment)
        {
            // if (_equipments.Count >= _characterConfig.MaxEquipmentCount)
            //     return false;

            _equipments.Add(equipment);
            // tmphp += equipment.Config.Hp;
            // tmpmp += equipment.Config.Mp;
            // tmpattack += equipment.Config.Attack;
            // tmpdefense += equipment.Config.Defense;
            // tmpmoveSpeed += equipment.Config.MoveSpeed;
            // tmpattackSpeed += equipment.Config.AttackSpeed;
            return true;
        }

        public bool RemoveAllEquipment(out List<IEquipment> equipments)
        {
            equipments = _equipments.ToList();
            // foreach (var equipment in _equipments)
            // {
            //     tmphp -= equipment.Config.Hp;
            //     tmpmp -= equipment.Config.Mp;
            //     tmpattack -= equipment.Config.Attack;
            //     tmpdefense -= equipment.Config.Defense;
            //     tmpmoveSpeed -= equipment.Config.MoveSpeed;
            //     tmpattackSpeed -= equipment.Config.AttackSpeed;
            // }

            _equipments.Clear();
            return true;
        }

        public void OnAttack(Character target)
        {
            foreach (var equipment in _equipments)
            {
                
            }
        }
    }
}