using System.Collections.Generic;
using System.Linq;
using Decentralized.Domain;

namespace Decentralized
{
    /// <summary>
    /// 每天的推进：开门时日内波动和 NPC 大户；睡觉时（游戏 EndNight 的最后）挖矿、损耗与暴毙、全网、稳定币、行情结算，写晨间日志，存档。
    /// 矿架自己在夜间早段扣电并登记显卡（Items.NightDraw），这里只结算。
    /// </summary>
    public static class Night
    {
        public static void Subscribe()
        {
            ModHook.OnShutterOpenedLate += OnOpen;
            ModHook.OnGoingSleepEarly += OnSleepEarly;
            ModHook.OnGoingSleepLate += OnSleepLate;
        }

        public static void Unsubscribe()
        {
            ModHook.OnShutterOpenedLate -= OnOpen;
            ModHook.OnGoingSleepEarly -= OnSleepEarly;
            ModHook.OnGoingSleepLate -= OnSleepLate;
        }

        private static bool Active => Session.Data != null && Unlock.IsUnlocked;

        /// <summary>游戏新闻事件与派系行动 → 行情事件。</summary>
        public static List<MarketEvent> ActiveEvents()
        {
            var list = new List<MarketEvent>();
            var mgr = StoreStation.Instance?.storeEventManager;
            if (mgr == null) return list;
            foreach (var e in mgr.GetActiveEvents())
            {
                switch (e.identifier)
                {
                    case "stationWideBlackout": case "powerShortage": case "powerPlantMaintenance": list.Add(MarketEvent.Blackout); break;
                    case "crackdown": case "sec_martial_law": list.Add(MarketEvent.Crackdown); break;
                    case "bm_gang_war": list.Add(MarketEvent.GangWar); break;
                    case "rev_raid_upper_level": list.Add(MarketEvent.RevRaidUpper); break;
                    case "ll_riot": case "ll_worker_strike": list.Add(MarketEvent.LowerUnrest); break;
                }
            }
            return list.Distinct().ToList();
        }

        private static void OnOpen()
        {
            if (!Active) return;
            Log.Guard("开门行情", () =>
            {
                var d = Session.Data;
                int day = StoreStation.GetDayCounter();
                d.Market.Open(ActiveEvents(), d.Rng, day);
                d.Market.Whale(d.Rng);
                if (!d.OpeningNewsShown)
                {
                    News.Show("pd_news_open", L.T("news.open.title"), L.T("news.open.desc"), 2);
                    d.OpeningNewsShown = true;
                }
                Session.Save();
            });
        }

        private static void OnSleepEarly()
        {
            Session.TonightCards.Clear();
            Session.TonightRigs = Session.TonightPoweredRigs = 0;
            Session.TonightKj = 0;
        }

        private static void OnSleepLate()
        {
            if (!Active) return;
            Log.Guard("夜间结算", Settle);
        }

        private static void Settle()
        {
            var d = Session.Data;
            int day = StoreStation.GetDayCounter();
            var events = ActiveEvents();
            foreach (var ev in events.Where(e => !d.ActiveEvents.Contains(e))) d.Stable.OnEventStart(ev, day, d.Rng);
            d.ActiveEvents = events;
            d.Network.Availability = (events.Contains(MarketEvent.Blackout) ? 0.8 : 1) * (events.Contains(MarketEvent.LowerUnrest) ? 0.9 : 1);

            var units = Session.TonightCards.Select(c => (item: c.Key, unit: Items.ToUnit(c.Key), bonus: c.Value)).ToList();
            double hash = units.Sum(x => x.unit.Hash(x.bonus));
            double mined = d.Network.Mine(hash);
            if (mined > 0) d.Hot.Add(Assets.PSC, mined);

            var report = new NightReport
            {
                Day = day, Rigs = Session.TonightRigs, PoweredRigs = Session.TonightPoweredRigs, Kj = Session.TonightKj,
                Hash = hash, NetworkHash = d.Network.NpcHash * d.Network.Availability + hash, Mined = mined,
            };
            foreach (var (item, unit, bonus) in units)
            {
                bool died = unit.Night(bonus, d.Rng);
                Items.Store(item, unit);
                if (died) report.Burnt.Add(item.name);
            }

            double rewardBefore = d.Network.Reward;
            d.Network.Night(day, d.Market.Price, hash);
            if (d.Network.Reward < rewardBefore) News.Show("pd_news_halving_" + day, L.T("news.halving.title"), L.T("news.halving.desc"), 2);
            double crcFactor = d.Stable.Night(day, d.Rng, 0);
            if (crcFactor < 1) d.Hot.Balances[Assets.CRC] = d.Hot.Get(Assets.CRC) * crcFactor;
            d.Market.Night(events, d.Rng, day, Session.Price);
            report.Price = d.Market.Price;
            d.LastNight = report;
            d.Day = day;

            var ps = PlayerStore.Instance;
            if (mined > 0) ps.AddNightLog(L.T("nightlog.mined", Fmt.Num(mined)));
            foreach (var name in report.Burnt) ps.AddNightLog(L.T("nightlog.burnt", name), "cc7755");
            int unpowered = report.Rigs - report.PoweredRigs;
            if (unpowered > 0 && units.Count + unpowered > 0) ps.AddNightLog(L.T("nightlog.unpowered", unpowered), "cc7755");
            Session.Save();
        }
    }

    /// <summary>mod 新闻：不带价格修正的新闻事件，和原版新闻一样出现在报纸上。</summary>
    public static class News
    {
        public static void Show(string id, string title, string text, int days)
        {
            var mgr = StoreStation.Instance?.storeEventManager;
            if (mgr == null || mgr.IsEventActive(id)) return;
            mgr.ActivateEvent(new StoreEvent
            {
                identifier = id, newsName = title, displayName = title, newsDescription = text,
                duration = days, eventType = StoreEvent.EventType.COSMETIC, eventArea = StoreEvent.EventArea.ALL,
                importance = 2, cooldown = 0, negociationDatas = new List<NegociationData>(),
            });
        }
    }
}