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

namespace Decentralized
{
    /// <summary>
    /// 用币付款的顾客：每天排队的买家里，按派系（上层 CRC、黑市 CRT、革命派 CRA、下层 PSC）有一小部分改用币结算。
    /// 成交时在店里扣回刚入账的信用点，换成币进热钱包；赃物的款项不记销赃，改成币带污点（货值 × 赃物热度%）。
    /// </summary>
    public static class CoinCustomers
    {
        private static readonly HashSet<StoreClient> Marked = new HashSet<StoreClient>();
        private static int markDay = -1;

        public static void Subscribe()
        {
            ModHook.OnGenerateCustomerLate += OnGenerate;
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Run night (test)", () => Log.Guard("过夜（测试）", () =>
            {
                // 走游戏自己的夜间流程（EndNight 会触发本 mod 的夜间结算），再进下一天并开门前的日程
                // 游戏过夜会清空前柜台，先把自己的东西收进物品栏
                foreach (var it in EmporiumEntry.Instance.frontInvinvElement.childItems.ToList())
                    if (GeneralHelper.IsItemOwned(it)) GraphUtils.TryAcceptAll(EmporiumEntry.Instance.invElement, it);
                PlayerStore.Instance.EndNight();
                StoreStation.Instance.storeEventManager.OnDayEnd();   // 让事件按天数过期
                StoreStation.Instance.StartDay();
                Log.Info($"过夜完成，现在是第 {StoreStation.GetDayCounter()} 天");
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Morning report (test)", () => Log.Guard("晨间日志（测试）", () => StartOfDayUIManager.Instance.ShowMorningReport()));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Newspaper (test)", () => Log.Guard("报纸（测试）", () => NewsUIManager.Instance.ToggleUI()));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Start crackdown (test)", () => Log.Guard("镇压（测试）", () =>
            {
                StoreStation.Instance.storeEventManager.ActivateEvent(OperationListSec.Crackdown());
                Log.Info("镇压事件已激活");
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Frozen CRT (test)", () => Log.Guard("冻结 CRT（测试）", () =>
            {
                var w = Session.Data.Hot;
                w.Add(Assets.CRT, 1000);
                double f = w.Freeze(Assets.CRT, Tuning.CrtFreezeShare, StoreStation.GetDayCounter() + Tuning.CrtUnfreezeAfter);
                Log.Info($"CRT {w.Get(Assets.CRT):0}，冻结 {f:0}，可动用 {w.Avail(Assets.CRT):0}");
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Tainted wallet (test)", () => Log.Guard("带污点的钱包（测试）", () =>
            {
                var w = Session.Data.Hot;
                w.Add(Assets.PSC, 100); w.Add(Assets.CRT, 1000); w.Taint += 3000; w.Basis += 2000;
                Log.Info($"钱包：PSC {w.Get(Assets.PSC):0.##}，污点 {w.Taint:0}");
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Terminal (test)", () => Log.Guard("终端（测试）", TerminalWindow.Open));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Black market +50 rep, restock (test)", () => Log.Guard("黑市（测试）", () =>
            {
                StoreReputation.ModReputation("FACTION_BLACK_MARKET", 50);
                if (!Unlock.IsUnlocked) ModHelper.GetNetworkUpgrade(Unlock.Id)?.Unlock();
                if (!Unlock.BlackUnlocked) ModHelper.GetNetworkUpgrade(Unlock.BlackId)?.Unlock();
                var d = Session.Data;
                d.Hot.Add(Assets.PSC, 20); d.Hot.Add(Assets.CRT, 3000); d.Hot.Taint += 2000; d.Hot.Basis += 1000;
                BlackDelivery.Restock(d, StoreStation.GetDayCounter(), true);
                Log.Info($"黑市：声望 {StoreReputation.GetBMReputation()}，上架 {d.Black.Offers.Count} 种：{string.Join(", ", d.Black.Offers.Select(o => o.Item + "×" + o.Qty + "@" + o.Price))}，解锁 {Unlock.BlackUnlocked}");
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Courier (test)", () => Log.Guard("黑市快递（测试）", () =>
            {
                foreach (var o in Session.Data.Black.Orders.Where(x => x.State == OrderState.Pending)) { o.State = OrderState.Ready; }
                PlayerStore.Instance.currentClientInstance = null;
                PlayerStore.Instance.storeClientManager.clientStack.Insert(0, BlackDelivery.CreateCourier());
                PlayerStore.Instance.TryCallNextClient();
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Courier trap (test)", () => Log.Guard("受控交付（测试）", () =>
            {
                foreach (var o in Session.Data.Black.Orders.Where(x => x.State == OrderState.Pending)) { o.State = OrderState.Ready; o.Controlled = true; }
                PlayerStore.Instance.currentClientInstance = null;
                PlayerStore.Instance.storeClientManager.clientStack.Insert(0, BlackDelivery.CreateCourier());
                PlayerStore.Instance.TryCallNextClient();
            }));
            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Coin buyer (test)", () => Log.Guard("用币付款顾客（测试）", () =>
            {
                var c = new StoreClient
                {
                    identifier = "pd_coin_test", displayName = "Coin buyer", spriteName = SpriteDict.GetRandomScavSpriteName(),
                    clientFaction = "FACTION_BLACK_MARKET", useClientBudget = true, clientIntent = StoreClient.ClientIntent.BUY,
                    canClientExposeFeature = ClientCanExposeFunc.BasicClientExposeCapacity,
                };
                c.SetBudget(5000);
                c.clientBuyingTagList.Add("SEED");
                c.mainDialogue.SetText(c.displayName, "CRT.").SetEndAction(() => { });
                c.AddBasicDialog();
                c.CompleteClientCreation();
                Mark(c, Assets.CRT);
                Log.Info($"用币付款顾客（测试）已设置，钱包污点 {Session.Data.Hot.Taint:0.##}，当前顾客 {PlayerStore.Instance.currentClientInstance?.GetClientBlueprint()?.identifier}，队列 {PlayerStore.Instance.storeClientManager.clientStack.Count} 人");
                PlayerStore.Instance.currentClientInstance = null;   // 测试：丢掉在场的顾客（开局的高利贷者不可遣散）
                PlayerStore.Instance.storeClientManager.clientStack.Insert(0, c);
                PlayerStore.Instance.TryCallNextClient();
                // 把后柜里的种子都标成赃物（热度 50%），买走后钱包的污点应为成交额的一半
                foreach (var it in EmporiumEntry.Instance.backInvinvElement.childItems)
                    if (it.IsTag("SEED")) it.ModifyTag("STOLEN_VALUE_INT", t => t.Enable().SetInt(50));
            }));
        }
        public static void Unsubscribe() => ModHook.OnGenerateCustomerLate -= OnGenerate;

        private static void OnGenerate(StoreClientManager manager)
        {
            if (Session.Data == null || !Unlock.IsUnlocked) return;
            Log.Guard("用币付款", () =>
            {
                int day = StoreStation.GetDayCounter();
                if (day != markDay) { Marked.Clear(); markDay = day; }
                foreach (var c in manager.clientStack)
                {
                    if (c == null || c.isSecurity || Marked.Contains(c) || c.clientIntent != StoreClient.ClientIntent.BUY || c.isNoContributeToEvidence) continue;
                    Marked.Add(c);
                    string asset = CoinPayment.AssetFor(c.clientFaction);
                    if (asset == null || !Session.Data.Rng.Chance(CoinPayment.Chance(asset))) continue;
                    Mark(c, asset);
                }
            });
        }

        private static void Mark(StoreClient c, string asset)
        {
            var before = c.onItemBought;
            double total = 0;   // 这位顾客这一单一共付了多少币
            c.isNoContributeToEvidence = true;
            c.onItemBought = (item, cost) =>
            {
                before?.Invoke(item, cost);
                Log.Guard("用币付款成交", () => { total += Pay(c, asset, item, cost); Say(c, asset, total); });
            };
        }

        /// <summary>成交后顾客说的话：告诉玩家这单是币到账，不是信用点。</summary>
        private static void Say(StoreClient client, string asset, double total)
        {
            client.acceptDealDialogue = new Dialogue().SetText(client.displayName, L.T("coinpay.line", Fmt.Num(total), asset));
            client.acceptDealDialogue.priority = 4;
            client.acceptDealDialoguePlayed = false;
        }

        private static double Pay(StoreClient client, string asset, GameItem item, int cost)
        {
            var d = Session.Data;
            double price = Session.Price(asset);
            if (cost <= 0 || price <= 0) return 0;
            int heat = item.IsTag("STOLEN_VALUE_INT") ? item.GetTagReadonly("STOLEN_VALUE_INT").GetInt() : 0;
            ModHelper.AddCredit(-cost, false);
            double qty = CoinPayment.Receive(d.Hot, asset, cost, price, heat);
            d.CoinSalesToday += cost;
            Log.Info($"用币付款：{item.name} {cost} 信用点 → {qty:0.####} {asset}，污点 +{cost * heat / 100.0:0}");
            return qty;
        }
    }
}