Files
ArchiSteamFarm/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/RemoteCommunication.cs
Archi 643b8a60fc Announce to the listing sooner if inventory has changed
We should announce to the listing at least each 60 minutes, but we should do it faster if we know that our inventory has changed. With this logic we can report in up to 1 minute since the change, which should provide very up-to-date state, but at the same time we still limit amount of announcements to not more than one per 5 minutes.
2022-12-16 19:57:32 +01:00

724 lines
29 KiB
C#

// _ _ _ ____ _ _____
// / \ _ __ ___ | |__ (_)/ ___| | |_ ___ __ _ _ __ ___ | ___|__ _ _ __ _ __ ___
// / _ \ | '__|/ __|| '_ \ | |\___ \ | __|/ _ \ / _` || '_ ` _ \ | |_ / _` || '__|| '_ ` _ \
// / ___ \ | | | (__ | | | || | ___) || |_| __/| (_| || | | | | || _|| (_| || | | | | | | |
// /_/ \_\|_| \___||_| |_||_||____/ \__|\___| \__,_||_| |_| |_||_| \__,_||_| |_| |_| |_|
// |
// Copyright 2015-2022 Łukasz "JustArchi" Domeradzki
// Contact: JustArchi@JustArchi.net
// |
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// |
// http://www.apache.org/licenses/LICENSE-2.0
// |
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Globalization;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using ArchiSteamFarm.Core;
using ArchiSteamFarm.Localization;
using ArchiSteamFarm.OfficialPlugins.ItemsMatcher.Data;
using ArchiSteamFarm.Steam;
using ArchiSteamFarm.Steam.Cards;
using ArchiSteamFarm.Steam.Data;
using ArchiSteamFarm.Steam.Exchange;
using ArchiSteamFarm.Steam.Security;
using ArchiSteamFarm.Steam.Storage;
using ArchiSteamFarm.Storage;
namespace ArchiSteamFarm.OfficialPlugins.ItemsMatcher;
internal sealed class RemoteCommunication : IAsyncDisposable, IDisposable {
private const byte MaxAnnouncementTTL = 60; // Maximum amount of minutes we can wait before the next Announcement
private const byte MinAnnouncementTTL = 5; // Minimum amount of minutes we must wait before the next Announcement
private const byte MinHeartBeatTTL = 10; // Minimum amount of minutes we must wait before sending next HeartBeat
private const byte MinItemsCount = 100; // Minimum amount of items to be eligible for public listing
private const byte MinPersonaStateTTL = 5; // Minimum amount of minutes we must wait before requesting persona state update
private static readonly ImmutableHashSet<Asset.EType> AcceptedMatchableTypes = ImmutableHashSet.Create(
Asset.EType.Emoticon,
Asset.EType.FoilTradingCard,
Asset.EType.ProfileBackground,
Asset.EType.TradingCard
);
private readonly Bot Bot;
private readonly Timer? HeartBeatTimer;
private readonly SemaphoreSlim MatchActivelySemaphore = new(1, 1);
private readonly Timer? MatchActivelyTimer;
private readonly SemaphoreSlim RequestsSemaphore = new(1, 1);
private DateTime LastAnnouncement;
private DateTime LastHeartBeat;
private DateTime LastPersonaStateRequest;
private bool ShouldSendAnnouncementEarlier;
private bool ShouldSendHeartBeats;
internal RemoteCommunication(Bot bot) {
ArgumentNullException.ThrowIfNull(bot);
Bot = bot;
if (Bot.BotConfig.RemoteCommunication.HasFlag(BotConfig.ERemoteCommunication.PublicListing)) {
HeartBeatTimer = new Timer(
HeartBeat,
null,
TimeSpan.FromMinutes(1) + TimeSpan.FromSeconds(ASF.LoadBalancingDelay * Bot.Bots?.Count ?? 0),
TimeSpan.FromMinutes(1)
);
}
if (Bot.BotConfig.TradingPreferences.HasFlag(BotConfig.ETradingPreferences.MatchActively)) {
if ((ASF.GlobalConfig?.LicenseID != null) && (ASF.GlobalConfig.LicenseID != Guid.Empty)) {
MatchActivelyTimer = new Timer(
MatchActively,
null,
TimeSpan.FromHours(1) + TimeSpan.FromSeconds(ASF.LoadBalancingDelay * Bot.Bots?.Count ?? 0),
TimeSpan.FromHours(6)
);
} else {
bot.ArchiLogger.LogGenericError(string.Format(CultureInfo.CurrentCulture, Strings.WarningNoLicense, nameof(BotConfig.ETradingPreferences.MatchActively)));
}
}
}
public void Dispose() {
// Those are objects that are always being created if constructor doesn't throw exception
MatchActivelySemaphore.Dispose();
RequestsSemaphore.Dispose();
// Those are objects that might be null and the check should be in-place
HeartBeatTimer?.Dispose();
MatchActivelyTimer?.Dispose();
}
public async ValueTask DisposeAsync() {
// Those are objects that are always being created if constructor doesn't throw exception
MatchActivelySemaphore.Dispose();
RequestsSemaphore.Dispose();
// Those are objects that might be null and the check should be in-place
if (HeartBeatTimer != null) {
await HeartBeatTimer.DisposeAsync().ConfigureAwait(false);
}
if (MatchActivelyTimer != null) {
await MatchActivelyTimer.DisposeAsync().ConfigureAwait(false);
}
}
internal void OnNewItemsNotification() => ShouldSendAnnouncementEarlier = true;
internal async Task OnPersonaState(string? nickname = null, string? avatarHash = null) {
if (!Bot.BotConfig.RemoteCommunication.HasFlag(BotConfig.ERemoteCommunication.PublicListing)) {
return;
}
if ((DateTime.UtcNow < LastAnnouncement.AddMinutes(ShouldSendAnnouncementEarlier ? MinAnnouncementTTL : MaxAnnouncementTTL)) && ShouldSendHeartBeats) {
return;
}
await RequestsSemaphore.WaitAsync().ConfigureAwait(false);
try {
if ((DateTime.UtcNow < LastAnnouncement.AddMinutes(ShouldSendAnnouncementEarlier ? MinAnnouncementTTL : MaxAnnouncementTTL)) && ShouldSendHeartBeats) {
return;
}
// Don't announce if we don't meet conditions
bool? eligible = await IsEligibleForListing().ConfigureAwait(false);
if (!eligible.HasValue) {
// This is actually network failure, so we'll stop sending heartbeats but not record it as valid check
ShouldSendHeartBeats = false;
return;
}
if (!eligible.Value) {
// We're not eligible, record this as a valid check
LastAnnouncement = DateTime.UtcNow;
ShouldSendAnnouncementEarlier = ShouldSendHeartBeats = false;
return;
}
HashSet<Asset.EType> acceptedMatchableTypes = Bot.BotConfig.MatchableTypes.Where(AcceptedMatchableTypes.Contains).ToHashSet();
if (acceptedMatchableTypes.Count == 0) {
throw new InvalidOperationException(nameof(acceptedMatchableTypes));
}
string? tradeToken = await Bot.ArchiHandler.GetTradeToken().ConfigureAwait(false);
if (string.IsNullOrEmpty(tradeToken)) {
// This is actually a network failure, so we'll stop sending heartbeats but not record it as valid check
ShouldSendHeartBeats = false;
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(tradeToken)));
return;
}
List<Asset> inventory;
try {
inventory = await Bot.ArchiWebHandler.GetInventoryAsync().ToListAsync().ConfigureAwait(false);
} catch (HttpRequestException e) {
// This is actually a network failure, so we'll stop sending heartbeats but not record it as valid check
ShouldSendHeartBeats = false;
Bot.ArchiLogger.LogGenericWarningException(e);
return;
} catch (Exception e) {
// This is actually a network failure, so we'll stop sending heartbeats but not record it as valid check
ShouldSendHeartBeats = false;
Bot.ArchiLogger.LogGenericException(e);
return;
}
// This is actual inventory
if (inventory.Count(item => item.Tradable && acceptedMatchableTypes.Contains(item.Type)) < MinItemsCount) {
// We're not eligible, record this as a valid check
LastAnnouncement = DateTime.UtcNow;
ShouldSendAnnouncementEarlier = ShouldSendHeartBeats = false;
return;
}
Bot.ArchiLogger.LogGenericInfo(string.Format(CultureInfo.CurrentCulture, Localization.Strings.ListingAnnouncing, Bot.SteamID, nickname, inventory.Count));
// ReSharper disable once RedundantSuppressNullableWarningExpression - required for .NET Framework
HttpStatusCode? response = await Backend.AnnounceForListing(Bot, inventory, acceptedMatchableTypes, tradeToken!, nickname, avatarHash).ConfigureAwait(false);
if (!response.HasValue) {
// This is actually a network failure, so we'll stop sending heartbeats but not record it as valid check
ShouldSendHeartBeats = false;
return;
}
// We've got the response, regardless what happened, we've succeeded in a valid check
LastAnnouncement = DateTime.UtcNow;
ShouldSendAnnouncementEarlier = false;
if (response.Value.IsClientErrorCode()) {
// ArchiNet told us that we've sent a bad request, so the process should restart from the beginning at later time
ShouldSendHeartBeats = false;
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, response));
switch (response) {
case HttpStatusCode.Forbidden:
// ArchiNet told us to stop submitting data for now
LastAnnouncement = DateTime.UtcNow.AddYears(1);
break;
#if NETFRAMEWORK
case (HttpStatusCode) 429:
#else
case HttpStatusCode.TooManyRequests:
#endif
// ArchiNet told us to try again later
LastAnnouncement = DateTime.UtcNow.AddDays(1);
break;
}
return;
}
LastHeartBeat = DateTime.UtcNow;
ShouldSendHeartBeats = true;
Bot.ArchiLogger.LogGenericInfo(Strings.Success);
} finally {
RequestsSemaphore.Release();
}
}
private async void HeartBeat(object? state = null) {
if (!Bot.IsConnectedAndLoggedOn || (Bot.HeartBeatFailures > 0)) {
return;
}
// Request persona update if needed
if ((DateTime.UtcNow > LastPersonaStateRequest.AddMinutes(MinPersonaStateTTL)) && (DateTime.UtcNow > LastAnnouncement.AddMinutes(ShouldSendAnnouncementEarlier ? MinAnnouncementTTL : MaxAnnouncementTTL))) {
LastPersonaStateRequest = DateTime.UtcNow;
Bot.RequestPersonaStateUpdate();
}
if (!ShouldSendHeartBeats || (DateTime.UtcNow < LastHeartBeat.AddMinutes(MinHeartBeatTTL))) {
return;
}
if (!await RequestsSemaphore.WaitAsync(0).ConfigureAwait(false)) {
return;
}
try {
HttpStatusCode? response = await Backend.HeartBeatForListing(Bot).ConfigureAwait(false);
if (!response.HasValue) {
return;
}
if (response.Value.IsClientErrorCode()) {
ShouldSendHeartBeats = false;
return;
}
LastHeartBeat = DateTime.UtcNow;
} finally {
RequestsSemaphore.Release();
}
}
private async Task<bool?> IsEligibleForListing() {
// Bot must be eligible for matching first
bool? isEligibleForMatching = await IsEligibleForMatching().ConfigureAwait(false);
if (isEligibleForMatching != true) {
return isEligibleForMatching;
}
// Bot must have STM enabled in TradingPreferences
if (!Bot.BotConfig.TradingPreferences.HasFlag(BotConfig.ETradingPreferences.SteamTradeMatcher)) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, $"{nameof(Bot.BotConfig.TradingPreferences)}: {Bot.BotConfig.TradingPreferences}"));
return false;
}
// Bot must have public inventory
bool? hasPublicInventory = await Bot.HasPublicInventory().ConfigureAwait(false);
if (hasPublicInventory != true) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, $"{nameof(Bot.HasPublicInventory)}: {hasPublicInventory?.ToString() ?? "null"}"));
return hasPublicInventory;
}
return true;
}
private async Task<bool?> IsEligibleForMatching() {
// Bot must have ASF 2FA
if (!Bot.HasMobileAuthenticator) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, $"{nameof(Bot.HasMobileAuthenticator)}: {Bot.HasMobileAuthenticator}"));
return false;
}
// Bot must have at least one accepted matchable type set
if ((Bot.BotConfig.MatchableTypes.Count == 0) || Bot.BotConfig.MatchableTypes.All(static type => !AcceptedMatchableTypes.Contains(type))) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, $"{nameof(Bot.BotConfig.MatchableTypes)}: {string.Join(", ", Bot.BotConfig.MatchableTypes)}"));
return false;
}
// Bot must have valid API key (e.g. not being restricted account)
bool? hasValidApiKey = await Bot.ArchiWebHandler.HasValidApiKey().ConfigureAwait(false);
if (hasValidApiKey != true) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, $"{nameof(Bot.ArchiWebHandler.HasValidApiKey)}: {hasValidApiKey?.ToString() ?? "null"}"));
return hasValidApiKey;
}
return true;
}
private async void MatchActively(object? state = null) {
if (ASF.GlobalConfig == null) {
throw new InvalidOperationException(nameof(ASF.GlobalConfig));
}
if (!ASF.GlobalConfig.LicenseID.HasValue || (ASF.GlobalConfig.LicenseID == Guid.Empty)) {
throw new InvalidOperationException(nameof(ASF.GlobalConfig.LicenseID));
}
if (!Bot.IsConnectedAndLoggedOn || Bot.BotConfig.TradingPreferences.HasFlag(BotConfig.ETradingPreferences.MatchEverything) || !Bot.BotConfig.TradingPreferences.HasFlag(BotConfig.ETradingPreferences.MatchActively) || (await IsEligibleForMatching().ConfigureAwait(false) != true)) {
Bot.ArchiLogger.LogGenericTrace(Strings.ErrorAborted);
return;
}
HashSet<Asset.EType> acceptedMatchableTypes = Bot.BotConfig.MatchableTypes.Where(AcceptedMatchableTypes.Contains).ToHashSet();
if (acceptedMatchableTypes.Count == 0) {
Bot.ArchiLogger.LogNullError(acceptedMatchableTypes);
return;
}
if (!await MatchActivelySemaphore.WaitAsync(0).ConfigureAwait(false)) {
Bot.ArchiLogger.LogGenericTrace(Strings.ErrorAborted);
return;
}
try {
Bot.ArchiLogger.LogGenericInfo(Strings.Starting);
string? tradeToken = await Bot.ArchiHandler.GetTradeToken().ConfigureAwait(false);
if (string.IsNullOrEmpty(tradeToken)) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(tradeToken)));
return;
}
HashSet<Asset> ourInventory;
try {
ourInventory = await Bot.ArchiWebHandler.GetInventoryAsync().Where(item => acceptedMatchableTypes.Contains(item.Type) && !Bot.BotDatabase.MatchActivelyBlacklistAppIDs.Contains(item.RealAppID)).ToHashSetAsync().ConfigureAwait(false);
} catch (HttpRequestException e) {
Bot.ArchiLogger.LogGenericWarningException(e);
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(ourInventory)));
return;
} catch (Exception e) {
Bot.ArchiLogger.LogGenericException(e);
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(ourInventory)));
return;
}
if (ourInventory.Count == 0) {
Bot.ArchiLogger.LogGenericInfo(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, nameof(ourInventory)));
return;
}
// ReSharper disable once RedundantSuppressNullableWarningExpression - required for .NET Framework
(HttpStatusCode StatusCode, ImmutableHashSet<ListedUser> Users)? response = await Backend.GetListedUsersForMatching(ASF.GlobalConfig.LicenseID.Value, Bot, ourInventory, acceptedMatchableTypes, tradeToken!).ConfigureAwait(false);
if (response == null) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(response)));
return;
}
if (!response.Value.StatusCode.IsSuccessCode()) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, response.Value.StatusCode));
return;
}
if (response.Value.Users.IsEmpty) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(response.Value.Users)));
return;
}
#pragma warning disable CA2000 // False positive, we're actually wrapping it in the using clause below exactly for that purpose
using (await Bot.Actions.GetTradingLock().ConfigureAwait(false)) {
#pragma warning restore CA2000 // False positive, we're actually wrapping it in the using clause below exactly for that purpose
Bot.ArchiLogger.LogGenericInfo(Strings.Starting);
await MatchActivelyRound(response.Value.Users, ourInventory, acceptedMatchableTypes).ConfigureAwait(false);
}
Bot.ArchiLogger.LogGenericInfo(Strings.Done);
} finally {
MatchActivelySemaphore.Release();
}
}
private async Task MatchActivelyRound(IReadOnlyCollection<ListedUser> listedUsers, IReadOnlyCollection<Asset> ourInventory, IReadOnlyCollection<Asset.EType> acceptedMatchableTypes) {
if ((listedUsers == null) || (listedUsers.Count == 0)) {
throw new ArgumentNullException(nameof(listedUsers));
}
if ((ourInventory == null) || (ourInventory.Count == 0)) {
throw new ArgumentNullException(nameof(ourInventory));
}
if ((acceptedMatchableTypes == null) || (acceptedMatchableTypes.Count == 0)) {
throw new ArgumentNullException(nameof(acceptedMatchableTypes));
}
(Dictionary<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity), Dictionary<ulong, uint>> ourFullState, Dictionary<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity), Dictionary<ulong, uint>> ourTradableState) = Trading.GetDividedInventoryState(ourInventory);
if (Trading.IsEmptyForMatching(ourFullState, ourTradableState)) {
// User doesn't have any more dupes in the inventory
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, $"{nameof(ourFullState)} || {nameof(ourTradableState)}"));
return;
}
HashSet<ulong> triedSteamIDs = new();
HashSet<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity)> skippedSetsThisRound = new();
byte maxTradeHoldDuration = ASF.GlobalConfig?.MaxTradeHoldDuration ?? GlobalConfig.DefaultMaxTradeHoldDuration;
foreach (ListedUser listedUser in listedUsers.Where(listedUser => (listedUser.SteamID != Bot.SteamID) && !triedSteamIDs.Contains(listedUser.SteamID) && acceptedMatchableTypes.Any(listedUser.MatchableTypes.Contains) && !Bot.IsBlacklistedFromTrades(listedUser.SteamID)).OrderByDescending(static listedUser => listedUser.MatchEverything).ThenBy(static listedUser => listedUser.Assets.Count)) {
HashSet<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity)> wantedSets = ourTradableState.Keys.Where(set => !skippedSetsThisRound.Contains(set) && listedUser.MatchableTypes.Contains(set.Type)).ToHashSet();
if (wantedSets.Count == 0) {
continue;
}
Bot.ArchiLogger.LogGenericTrace($"{listedUser.SteamID}...");
byte? tradeHoldDuration = await Bot.ArchiWebHandler.GetCombinedTradeHoldDurationAgainstUser(listedUser.SteamID, listedUser.TradeToken).ConfigureAwait(false);
switch (tradeHoldDuration) {
case null:
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, nameof(tradeHoldDuration)));
continue;
case > 0 when (tradeHoldDuration.Value > maxTradeHoldDuration) || (tradeHoldDuration.Value > listedUser.MaxTradeHoldDuration):
Bot.ArchiLogger.LogGenericTrace($"{tradeHoldDuration.Value} > {maxTradeHoldDuration} || {listedUser.MaxTradeHoldDuration}");
continue;
}
HashSet<Asset> theirInventory = listedUser.Assets.Where(item => (!listedUser.MatchEverything || item.Tradable) && wantedSets.Contains((item.RealAppID, item.Type, item.Rarity)) && ((tradeHoldDuration.Value == 0) || !(item.Type is Asset.EType.FoilTradingCard or Asset.EType.TradingCard && CardsFarmer.SalesBlacklist.Contains(item.RealAppID)))).Select(static asset => asset.ToAsset()).ToHashSet();
HashSet<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity)> skippedSetsThisUser = new();
Dictionary<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity), Dictionary<ulong, uint>> theirTradableState = Trading.GetTradableInventoryState(theirInventory);
Dictionary<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity), Dictionary<ulong, uint>> inventoryStateChanges = new();
for (byte i = 0; i < Trading.MaxTradesPerAccount; i++) {
byte itemsInTrade = 0;
HashSet<(uint RealAppID, Asset.EType Type, Asset.ERarity Rarity)> skippedSetsThisTrade = new();
Dictionary<ulong, uint> classIDsToGive = new();
Dictionary<ulong, uint> classIDsToReceive = new();
Dictionary<ulong, uint> fairClassIDsToGive = new();
Dictionary<ulong, uint> fairClassIDsToReceive = new();
foreach (((uint RealAppID, Asset.EType Type, Asset.ERarity Rarity) set, Dictionary<ulong, uint> ourFullItems) in ourFullState.Where(set => !skippedSetsThisUser.Contains(set.Key) && listedUser.MatchableTypes.Contains(set.Key.Type) && set.Value.Values.Any(static count => count > 1))) {
if (!ourTradableState.TryGetValue(set, out Dictionary<ulong, uint>? ourTradableItems) || (ourTradableItems.Count == 0)) {
continue;
}
if (!theirTradableState.TryGetValue(set, out Dictionary<ulong, uint>? theirTradableItems) || (theirTradableItems.Count == 0)) {
continue;
}
// Those 2 collections are on user-basis since we can't be sure that the trade passes through (and therefore we need to keep original state in case of failure)
Dictionary<ulong, uint> ourFullSet = new(ourFullItems);
Dictionary<ulong, uint> ourTradableSet = new(ourTradableItems);
// We also have to take into account changes that happened in previous trades with this user, so this block will adapt to that
if (inventoryStateChanges.TryGetValue(set, out Dictionary<ulong, uint>? pastChanges) && (pastChanges.Count > 0)) {
foreach ((ulong classID, uint amount) in pastChanges) {
if (!ourFullSet.TryGetValue(classID, out uint fullAmount) || (fullAmount == 0) || (fullAmount < amount)) {
Bot.ArchiLogger.LogNullError(fullAmount);
return;
}
if (fullAmount > amount) {
ourFullSet[classID] = fullAmount - amount;
} else {
ourFullSet.Remove(classID);
}
if (!ourTradableSet.TryGetValue(classID, out uint tradableAmount) || (tradableAmount == 0) || (tradableAmount < amount)) {
Bot.ArchiLogger.LogNullError(tradableAmount);
return;
}
if (fullAmount > amount) {
ourTradableSet[classID] = fullAmount - amount;
} else {
ourTradableSet.Remove(classID);
}
}
if (Trading.IsEmptyForMatching(ourFullSet, ourTradableSet)) {
continue;
}
}
bool match;
do {
match = false;
foreach ((ulong ourItem, uint ourFullAmount) in ourFullSet.Where(static item => item.Value > 1).OrderByDescending(static item => item.Value)) {
if (!ourTradableSet.TryGetValue(ourItem, out uint ourTradableAmount) || (ourTradableAmount == 0)) {
continue;
}
foreach ((ulong theirItem, uint theirTradableAmount) in theirTradableItems.OrderBy(item => ourFullSet.TryGetValue(item.Key, out uint ourAmountOfTheirItem) ? ourAmountOfTheirItem : 0)) {
if (ourFullSet.TryGetValue(theirItem, out uint ourAmountOfTheirItem) && (ourFullAmount <= ourAmountOfTheirItem + 1)) {
continue;
}
if (!listedUser.MatchEverything) {
// We have a potential match, let's check fairness for them
fairClassIDsToGive.TryGetValue(ourItem, out uint fairGivenAmount);
fairClassIDsToReceive.TryGetValue(theirItem, out uint fairReceivedAmount);
fairClassIDsToGive[ourItem] = ++fairGivenAmount;
fairClassIDsToReceive[theirItem] = ++fairReceivedAmount;
// Filter their inventory for the sets we're trading or have traded with this user
HashSet<Asset> fairFiltered = theirInventory.Where(item => ((item.RealAppID == set.RealAppID) && (item.Type == set.Type) && (item.Rarity == set.Rarity)) || skippedSetsThisTrade.Contains((item.RealAppID, item.Type, item.Rarity))).Select(static item => item.CreateShallowCopy()).ToHashSet();
// Copy list to HashSet<Steam.Asset>
HashSet<Asset> fairItemsToGive = Trading.GetTradableItemsFromInventory(ourInventory.Where(item => ((item.RealAppID == set.RealAppID) && (item.Type == set.Type) && (item.Rarity == set.Rarity)) || skippedSetsThisTrade.Contains((item.RealAppID, item.Type, item.Rarity))).Select(static item => item.CreateShallowCopy()).ToHashSet(), fairClassIDsToGive.ToDictionary(static classID => classID.Key, static classID => classID.Value));
HashSet<Asset> fairItemsToReceive = Trading.GetTradableItemsFromInventory(fairFiltered.Select(static item => item.CreateShallowCopy()).ToHashSet(), fairClassIDsToReceive.ToDictionary(static classID => classID.Key, static classID => classID.Value));
// Actual check:
if (!Trading.IsTradeNeutralOrBetter(fairFiltered, fairItemsToReceive, fairItemsToGive)) {
if (fairGivenAmount > 1) {
fairClassIDsToGive[ourItem] = fairGivenAmount - 1;
} else {
fairClassIDsToGive.Remove(ourItem);
}
if (fairReceivedAmount > 1) {
fairClassIDsToReceive[theirItem] = fairReceivedAmount - 1;
} else {
fairClassIDsToReceive.Remove(theirItem);
}
continue;
}
}
// Skip this set from the remaining of this round
skippedSetsThisTrade.Add(set);
// Update our state based on given items
classIDsToGive[ourItem] = classIDsToGive.TryGetValue(ourItem, out uint ourGivenAmount) ? ourGivenAmount + 1 : 1;
ourFullSet[ourItem] = ourFullAmount - 1; // We don't need to remove anything here because we can guarantee that ourItem.Value is at least 2
if (inventoryStateChanges.TryGetValue(set, out Dictionary<ulong, uint>? currentChanges)) {
currentChanges[ourItem] = currentChanges.TryGetValue(ourItem, out uint amount) ? amount + 1 : 1;
} else {
inventoryStateChanges[set] = new Dictionary<ulong, uint> {
{ ourItem, 1 }
};
}
// Update our state based on received items
classIDsToReceive[theirItem] = classIDsToReceive.TryGetValue(theirItem, out uint ourReceivedAmount) ? ourReceivedAmount + 1 : 1;
ourFullSet[theirItem] = ourAmountOfTheirItem + 1;
if (ourTradableAmount > 1) {
ourTradableSet[ourItem] = ourTradableAmount - 1;
} else {
ourTradableSet.Remove(ourItem);
}
// Update their state based on taken items
if (theirTradableAmount > 1) {
theirTradableItems[theirItem] = theirTradableAmount - 1;
} else {
theirTradableItems.Remove(theirItem);
}
itemsInTrade += 2;
match = true;
break;
}
if (match) {
break;
}
}
} while (match && (itemsInTrade < Trading.MaxItemsPerTrade - 1));
if (itemsInTrade >= Trading.MaxItemsPerTrade - 1) {
break;
}
}
if (skippedSetsThisTrade.Count == 0) {
Bot.ArchiLogger.LogGenericTrace(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, nameof(skippedSetsThisTrade)));
break;
}
// Remove the items from inventories
HashSet<Asset> itemsToGive = Trading.GetTradableItemsFromInventory(ourInventory, classIDsToGive);
HashSet<Asset> itemsToReceive = Trading.GetTradableItemsFromInventory(theirInventory, classIDsToReceive, true);
if ((itemsToGive.Count != itemsToReceive.Count) || !Trading.IsFairExchange(itemsToGive, itemsToReceive)) {
// Failsafe
Bot.ArchiLogger.LogGenericError(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, Strings.ErrorAborted));
return;
}
triedSteamIDs.Add(listedUser.SteamID);
Bot.ArchiLogger.LogGenericInfo(string.Format(CultureInfo.CurrentCulture, Localization.Strings.MatchingFound, itemsToReceive.Count, listedUser.SteamID, listedUser.Nickname));
Bot.ArchiLogger.LogGenericTrace($"{Bot.SteamID} <- {string.Join(", ", itemsToReceive.Select(static item => $"{item.RealAppID}/{item.Type}/{item.Rarity}/{item.ClassID} #{item.Amount}"))} | {string.Join(", ", itemsToGive.Select(static item => $"{item.RealAppID}/{item.Type}/{item.Rarity}/{item.ClassID} #{item.Amount}"))} -> {listedUser.SteamID}");
(bool success, HashSet<ulong>? mobileTradeOfferIDs) = await Bot.ArchiWebHandler.SendTradeOffer(listedUser.SteamID, itemsToGive, itemsToReceive, listedUser.TradeToken, true).ConfigureAwait(false);
if ((mobileTradeOfferIDs?.Count > 0) && Bot.HasMobileAuthenticator) {
(bool twoFactorSuccess, _, _) = await Bot.Actions.HandleTwoFactorAuthenticationConfirmations(true, Confirmation.EType.Trade, mobileTradeOfferIDs, true).ConfigureAwait(false);
if (!twoFactorSuccess) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(twoFactorSuccess)));
return;
}
}
if (!success) {
Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Localization.Strings.TradeOfferFailed, listedUser.SteamID, listedUser.Nickname));
break;
}
// Add itemsToGive to theirInventory to reflect their current state if we're over MaxItemsPerTrade
theirInventory.UnionWith(itemsToGive);
skippedSetsThisUser.UnionWith(skippedSetsThisTrade);
Bot.ArchiLogger.LogGenericInfo(Strings.Success);
}
if (skippedSetsThisUser.Count == 0) {
continue;
}
skippedSetsThisRound.UnionWith(skippedSetsThisUser);
foreach ((uint RealAppID, Asset.EType Type, Asset.ERarity Rarity) skippedSet in skippedSetsThisUser) {
ourFullState.Remove(skippedSet);
ourTradableState.Remove(skippedSet);
}
if (Trading.IsEmptyForMatching(ourFullState, ourTradableState)) {
// User doesn't have any more dupes in the inventory
break;
}
ourFullState.TrimExcess();
ourTradableState.TrimExcess();
}
Bot.ArchiLogger.LogGenericInfo(string.Format(CultureInfo.CurrentCulture, Localization.Strings.ActivelyMatchingItemsRound, skippedSetsThisRound.Count));
}
}