using System.Collections.Generic;
using System;

/**
 * endless_port 无尽模式关卡配置表数据处理类
 * @Author: chenxin
 * @Date: 2020-10-10 17:11:23
 */
namespace KTGMGemClient
{
    public class EndlessPortConfig
    {
        /// <summary>
        /// 配置表数据
        /// </summary>
        public endless_port Config;

        /// <summary>
        /// 预先随机好的敌人数据，spawnAgent时直接取这个数据，不再动态随机
        /// </summary>
        public endless_enemy EnemyData;

        /// <summary>
        /// 掉落概率总权重，即：表中掉落概率那一项全部加起来
        /// </summary>
        public int DropTotalWeight;
    }

    public class EndlessPortData
    {
        /// <summary>
        /// 无尽模式关卡配置表
        /// </summary>
        private static List<endless_port> endlessPortList;

        /// <summary>
        /// 无尽模式新手关卡配置表
        /// </summary>
        private static List<endless_port> endlessTeachPortList;

        private static List<EndlessPortConfig> portConfigList;

        /// <summary>
        /// 新手用
        /// </summary>
        private static List<EndlessPortConfig> teachPortConfigList;

        private static Random random;

        /// <summary>
        /// 最大关卡
        /// </summary>
        /// <value></value>
        private static int maxLevel { get; set; }
        public static int MaxLevel
        {
            get { return maxLevel; }
        }

        /// <summary>
        /// 数据初始化
        /// </summary>
        public static void Init()
        {
            random = new Random();
            InitPortConfig();
            InitTeachPortConfig();
            List<List<EndlessPortConfig>> list = GetLevelWaveData(1);
        }

        /// <summary>
        /// 初始化关卡配置
        /// </summary>
        private static void InitPortConfig()
        {
            endlessPortList = JsonDataCenter.GetList<endless_port>();
            portConfigList = new List<EndlessPortConfig>();
            InitPortList(portConfigList, endlessPortList);
        }

        /// <summary>
        /// 初始化新手的关卡配置
        /// </summary>
        private static void InitTeachPortConfig()
        {
            List<endless_teachport> list = JsonDataCenter.GetList<endless_teachport>();
            endlessTeachPortList = new List<endless_port>();

            foreach (endless_teachport data in list)
            {
                endless_port newData = new endless_port();
                newData.id = data.id;
                newData.level = data.level;
                newData.boss_name = data.boss_name;
                newData.resource = data.resource;
                newData.wave = data.wave;
                newData.tunel = data.tunel;
                newData.enemy_id = data.enemy_id;
                newData.amount = data.amount;
                newData.interval = data.interval;
                newData.b_hp = data.b_hp;
                newData.b_speed = data.b_speed;
                newData.b_coin = data.b_coin;
                newData.cooldown = data.cooldown;

                List<reward> rewardList = new List<reward>();
                foreach (reward r in rewardList)
                {
                    reward nr = new reward();
                    nr.type = r.type;
                    nr.id = r.id;
                    nr.count = r.count;
                    rewardList.Add(nr);
                }

                newData.drop = rewardList;

                List<int> rateList = new List<int>();
                foreach (int r in rateList)
                {
                    rateList.Add(r);
                }

                newData.drop_rate = rateList;
                newData.tunel_bg = data.tunel_bg;
                endlessTeachPortList.Add(newData);
            }

            teachPortConfigList = new List<EndlessPortConfig>();
            InitPortList(teachPortConfigList, endlessTeachPortList);
        }

        private static void InitPortList(List<EndlessPortConfig> list, List<endless_port> srcList)
        {
            foreach (endless_port data in srcList)
            {
                if (data.level > maxLevel)
                    maxLevel = data.level;

                EndlessPortConfig param = new EndlessPortConfig();
                param.Config = data;
                param.EnemyData = EndlessEnemyData.GetDataById(data.enemy_id);
                int totalWeight = 0;

                for (int i = 0; i < data.drop_rate.Count; ++i)
                {
                    totalWeight += data.drop_rate[i];
                }

                param.DropTotalWeight = totalWeight;
                list.Add(param);
            }
        }

        /// <summary>
        /// 根据关卡等级获取关卡的所有波数据，如果本波次敌人数量为0，直接忽略掉
        /// </summary>
        /// <param name="level">关卡等级</param>
        /// <returns></returns>
        public static List<List<EndlessPortConfig>> GetLevelWaveData(int level)
        {
            List<List<EndlessPortConfig>> ret = new List<List<EndlessPortConfig>>();

            for (int i = 0; i < 5; ++i)
            {
                ret.Add(new List<EndlessPortConfig>());
            }

            List<EndlessPortConfig> list = GameConfig.IsNewbie ? teachPortConfigList : portConfigList;

            foreach (EndlessPortConfig data in list)
            {
                if (data.Config.level != level || data.Config.amount == 0) continue;

                ret[data.Config.wave - 1].Add(data);
            }

            for (int i = 0; i < ret.Count; ++i)
            {
                if (ret[i].Count == 0)
                {
                    ret.Remove(ret[i]);
                    --i;
                }
            }

            return ret;
        }

        /// <summary>
        /// 根据关卡等级和波次获得该波次的所有敌人数量
        /// </summary>
        /// <param name="level"></param>
        /// <param name="wave"></param>
        /// <returns></returns>
        public static int GetWaveEnemiesCount(int level, int wave)
        {
            List<List<EndlessPortConfig>> list = GetLevelWaveData(level);

            if (list.Count == 0) return 0;

            List<EndlessPortConfig> waveData = list[wave];
            int ret = 0;

            for (int i = 0; i < waveData.Count; ++i)
            {
                ret += waveData[i].Config.amount;
            }

            return ret;
        }

        /// <summary>
        /// 根据关卡等级、波次、赛道获得击杀敌人掉落的奖励列表
        /// </summary>
        /// <param name="level">关卡等级</param>
        /// <param name="wave">波次</param>
        /// <param name="tunel">第几条赛道</param>
        /// <returns></returns>
        public static List<reward> GetDropRewardList(int level, int wave, int tunel)
        {
            List<reward> ret = new List<reward>();
            List<List<EndlessPortConfig>> levelData = GetLevelWaveData(level);

            if (levelData.Count == 0)
                throw new Exception($"当前关卡：{level}, 没有关卡数据");

            List<EndlessPortConfig> waveData = levelData[wave - 1];

            if (waveData.Count == 0)
                throw new Exception($"当前关卡：{level}，当前波次：{wave}，没有波次数据");

            for (int i = 0; i < waveData.Count; ++i)
            {
                if (waveData[i].Config.tunel != tunel) continue;

                for (int j = 0; j < waveData[i].Config.drop.Count; ++j)
                {
                    // 概率为0
                    if (waveData[i].Config.drop_rate[j] == 0) continue;

                    int val = random.Next(waveData[i].DropTotalWeight);

                    if (val <= waveData[i].Config.drop_rate[j])
                        // 命中
                        ret.Add(waveData[i].Config.drop[j]);
                }
            }

            return ret;
        }
    }
}