using System;
using System.Collections.Generic;
using System.Linq;
using CommonDomain;
using CommonDomain.BaseModel;
using CommonDomain.Enum;
using UserDomain.Entity;

namespace RedisService.Param
{
    public static class RoomBotFactory
    {
        public static readonly int[] FixedBotSeats = Array.Empty<int>();

        public static bool FixedBotSeatsEnabled => FixedBotSeats.Length > 0;

        /// <summary>基础默认炮台（与 UserService.UnloadCannon 中一致）</summary>
        public const string DefaultCannonNumber = "11001";

        /// <summary>机器人初始等级范围</summary>
        public const int MinBotLevel = 1;
        public const int MaxBotLevel = 15;

        /// <summary>机器人初始 VIP 等级范围</summary>
        public const int MinBotVipLevel = 0;
        public const int MaxBotVipLevel = 5;

        public static RedisGamePlayer CreateBot(int position, RoomConfig roomConfig, GameConfig gameConfig, IReadOnlyList<BotProfileEntity> botProfiles)
        {
            if (roomConfig?.CannonMultipleList == null || roomConfig.CannonMultipleList.Count == 0
                || botProfiles == null || botProfiles.Count == 0)
                return null;

            var profile = botProfiles[System.Random.Shared.Next(botProfiles.Count)];
            var maxMultiple = roomConfig.CannonMultipleList.Max();
            var gold = maxMultiple * System.Random.Shared.Next(100, 501);

            var botId = Guid.NewGuid().ToString("N");
            var botNumber = Common.Utils.RandomHelper.RandomNumbers(8);
            var bot = new RedisGamePlayer
            {
                UserId = botId,
                UserNumber = botNumber,
                UserName = profile.Name,
                Avatar = profile.Avatar,
                IsBot = true,
                Gold = gold,
                Diamond = System.Random.Shared.Next(100, 5001),
                Position = position,
                CannonMultiple = roomConfig.CannonMultipleList[System.Random.Shared.Next(roomConfig.CannonMultipleList.Count)],
                BeginCoin = gold,
                BeginTime = new DateTimeOffset(DateTime.Now).ToUnixTimeSeconds(),
                CId = string.Empty,
                State = 0,
                PlayerFactor = new PlayerFactor()
            };

            ApplyBotBaseValues(bot, gameConfig);
            return bot;
        }

        /// <summary>
        /// 设置机器人基础值：等级 1~15、VIP 0~5、经验与等级对应、炮台 30% 非默认 / 70% 默认、
        /// 翅膀 15%、战神 5%。三处创建机器人的入口共用，避免取值不一致。
        /// </summary>
        public static void ApplyBotBaseValues(RedisGamePlayer bot, GameConfig gameConfig)
        {
            if (bot == null)
                return;

            var levelConfigs = gameConfig?.UserLevelConfigs ?? new List<UserLevelConfig>();
            var inRangeLevels = levelConfigs
                .Where(c => c != null && c.Level >= MinBotLevel && c.Level <= MaxBotLevel)
                .ToList();

            var levelCfg = inRangeLevels.Count > 0
                ? inRangeLevels[System.Random.Shared.Next(inRangeLevels.Count)]
                : null;
            bot.Level = levelCfg?.Level ?? MinBotLevel;
            bot.MaxExp = levelCfg?.ExpMax ?? 0;
            bot.Exp = levelCfg == null || levelCfg.ExpMax <= levelCfg.ExpMin
                ? (levelCfg?.ExpMin ?? 0)
                : System.Random.Shared.NextInt64(levelCfg.ExpMin, levelCfg.ExpMax);

            bot.VipLevel = System.Random.Shared.Next(MinBotVipLevel, MaxBotVipLevel + 1);

            var props = gameConfig?.PropConfig ?? new List<PropInfConfig>();
            var cannons = props.Where(p => p.Type == ProductTypeEnum.炮台 && p.IsEnable && !p.Number.StartsWith("401")).ToList();
            var wings = props.Where(p => p.Type == ProductTypeEnum.翅膀 && p.IsEnable && p.IsSale).ToList();
            var warGods = props.Where(p => p.Type == ProductTypeEnum.战神 && p.IsEnable && p.IsSale).ToList();

            var nonDefaultCannons = cannons.Where(c => c.Number != DefaultCannonNumber).ToList();
            bot.CannonId = System.Random.Shared.Next(100) < 30 && nonDefaultCannons.Count > 0
                ? nonDefaultCannons[System.Random.Shared.Next(nonDefaultCannons.Count)].Number
                : DefaultCannonNumber;

            bot.WingsId = wings.Count > 0 && System.Random.Shared.Next(100) < 15
                ? wings[System.Random.Shared.Next(wings.Count)].Number
                : string.Empty;

            bot.WarGodId = warGods.Count > 0 && System.Random.Shared.Next(100) < 5
                ? warGods[System.Random.Shared.Next(warGods.Count)].Number
                : string.Empty;
        }

        public static List<RedisGamePlayer> CreateFixedSeatBots(RedisGameRoom room, RoomConfig roomConfig, GameConfig gameConfig, IReadOnlyList<BotProfileEntity> botProfiles, IReadOnlyList<int> fixedSeats = null)
        {
            var result = new List<RedisGamePlayer>();
            if (room == null)
                return result;

            fixedSeats ??= FixedBotSeats;
            if (fixedSeats.Count == 0)
                return result;

            room.Players ??= new List<RedisGamePlayer>();
            foreach (var seat in fixedSeats.Distinct())
            {
                if (seat < 0 || seat >= room.MaxPlayerCount)
                    continue;
                if (room.Players.Any(p => p.Position == seat))
                    continue;

                var bot = CreateBot(seat, roomConfig, gameConfig, botProfiles);
                if (bot != null)
                    result.Add(bot);
            }
            return result;
        }
    }
}