using System.Collections.Generic;
using System.Linq;
using System;
using AmongUs.GameOptions;
using EHR.Modules;
using EHR.Roles;
using HarmonyLib;
using Il2CppInterop.Runtime.InteropTypes.Arrays;

namespace EHR;

[HarmonyPatch(typeof(ShipStatus), nameof(ShipStatus.AddTasksFromList))]
internal static class AddTasksFromListPatch
{
    public static Dictionary<TaskTypes, OptionItem> DisableTasksSettings = [];

    public static void Prefix([HarmonyArgument(4)] Il2CppSystem.Collections.Generic.List<NormalPlayerTask> unusedTasks)
    {
        if (!AmongUsClient.Instance.AmHost) return;

        if (DisableTasksSettings.Count == 0)
        {
            DisableTasksSettings = new()
            {
                [TaskTypes.SwipeCard] = Options.DisableSwipeCard,
                [TaskTypes.SubmitScan] = Options.DisableSubmitScan,
                [TaskTypes.UnlockSafe] = Options.DisableUnlockSafe,
                [TaskTypes.UploadData] = Options.DisableUploadData,
                [TaskTypes.StartReactor] = Options.DisableStartReactor,
                [TaskTypes.ResetBreakers] = Options.DisableResetBreaker,
                [TaskTypes.VentCleaning] = Options.DisableCleanVent,
                [TaskTypes.CalibrateDistributor] = Options.DisableCalibrateDistributor,
                [TaskTypes.ChartCourse] = Options.DisableChartCourse,
                [TaskTypes.StabilizeSteering] = Options.DisableStabilizeSteering,
                [TaskTypes.CleanO2Filter] = Options.DisableCleanO2Filter,
                [TaskTypes.UnlockManifolds] = Options.DisableUnlockManifolds,
                [TaskTypes.PrimeShields] = Options.DisablePrimeShields,
                [TaskTypes.MeasureWeather] = Options.DisableMeasureWeather,
                [TaskTypes.BuyBeverage] = Options.DisableBuyBeverage,
                [TaskTypes.AssembleArtifact] = Options.DisableAssembleArtifact,
                [TaskTypes.SortSamples] = Options.DisableSortSamples,
                [TaskTypes.ProcessData] = Options.DisableProcessData,
                [TaskTypes.RunDiagnostics] = Options.DisableRunDiagnostics,
                [TaskTypes.RepairDrill] = Options.DisableRepairDrill,
                [TaskTypes.AlignTelescope] = Options.DisableAlignTelescope,
                [TaskTypes.RecordTemperature] = Options.DisableRecordTemperature,
                [TaskTypes.FillCanisters] = Options.DisableFillCanisters,
                [TaskTypes.MonitorOxygen] = Options.DisableMonitorTree,
                [TaskTypes.StoreArtifacts] = Options.DisableStoreArtifacts,
                [TaskTypes.PutAwayPistols] = Options.DisablePutAwayPistols,
                [TaskTypes.PutAwayRifles] = Options.DisablePutAwayRifles,
                [TaskTypes.MakeBurger] = Options.DisableMakeBurger,
                [TaskTypes.CleanToilet] = Options.DisableCleanToilet,
                [TaskTypes.Decontaminate] = Options.DisableDecontaminate,
                [TaskTypes.SortRecords] = Options.DisableSortRecords,
                [TaskTypes.FixShower] = Options.DisableFixShower,
                [TaskTypes.PickUpTowels] = Options.DisablePickUpTowels,
                [TaskTypes.PolishRuby] = Options.DisablePolishRuby,
                [TaskTypes.DressMannequin] = Options.DisableDressMannequin,
                [TaskTypes.AlignEngineOutput] = Options.DisableAlignEngineOutput,
                [TaskTypes.InspectSample] = Options.DisableInspectSample,
                [TaskTypes.EmptyChute] = Options.DisableEmptyChute,
                [TaskTypes.ClearAsteroids] = Options.DisableClearAsteroids,
                [TaskTypes.WaterPlants] = Options.DisableWaterPlants,
                [TaskTypes.OpenWaterways] = Options.DisableOpenWaterways,
                [TaskTypes.ReplaceWaterJug] = Options.DisableReplaceWaterJug,
                [TaskTypes.RebootWifi] = Options.DisableRebootWifi,
                [TaskTypes.DevelopPhotos] = Options.DisableDevelopPhotos,
                [TaskTypes.RewindTapes] = Options.DisableRewindTapes,
                [TaskTypes.StartFans] = Options.DisableStartFans,
                [TaskTypes.FixWiring] = Options.DisableFixWiring,
                [TaskTypes.EnterIdCode] = Options.DisableEnterIdCode,
                [TaskTypes.InsertKeys] = Options.DisableInsertKeys,
                [TaskTypes.ScanBoardingPass] = Options.DisableScanBoardingPass,
                [TaskTypes.EmptyGarbage] = Options.DisableEmptyGarbage,
                [TaskTypes.FuelEngines] = Options.DisableFuelEngines,
                [TaskTypes.DivertPower] = Options.DisableDivertPower,
                [TaskTypes.FixWeatherNode] = Options.DisableActivateWeatherNodes,
                [TaskTypes.RoastMarshmallow] = Options.DisableRoastMarshmallow,
                [TaskTypes.CollectSamples] = Options.DisableCollectSamples,
                [TaskTypes.ReplaceParts] = Options.DisableReplaceParts,
                [TaskTypes.CollectVegetables] = Options.DisableCollectVegetables,
                [TaskTypes.MineOres] = Options.DisableMineOres,
                [TaskTypes.ExtractFuel] = Options.DisableExtractFuel,
                [TaskTypes.CatchFish] = Options.DisableCatchFish,
                [TaskTypes.PolishGem] = Options.DisablePolishGem,
                [TaskTypes.HelpCritter] = Options.DisableHelpCritter,
                [TaskTypes.HoistSupplies] = Options.DisableHoistSupplies,
                [TaskTypes.FixAntenna] = Options.DisableFixAntenna,
                [TaskTypes.BuildSandcastle] = Options.DisableBuildSandcastle,
                [TaskTypes.CrankGenerator] = Options.DisableCrankGenerator,
                [TaskTypes.MonitorMushroom] = Options.DisableMonitorMushroom,
                [TaskTypes.PlayVideogame] = Options.DisablePlayVideoGame,
                [TaskTypes.TuneRadio] = Options.DisableFindSignal,
                [TaskTypes.TestFrisbee] = Options.DisableThrowFisbee,
                [TaskTypes.LiftWeights] = Options.DisableLiftWeights,
                [TaskTypes.CollectShells] = Options.DisableCollectShells
            };
        }

        if (!Options.DisableShortTasks.GetBool() && !Options.DisableCommonTasks.GetBool() && !Options.DisableLongTasks.GetBool() && !Options.DisableOtherTasks.GetBool() && Options.CurrentGameMode == CustomGameMode.Standard) return;

        List<NormalPlayerTask> disabledTasks = [];

        foreach (NormalPlayerTask task in unusedTasks)
        {
            if ((DisableTasksSettings.TryGetValue(task.TaskType, out OptionItem setting) && setting.GetBool()) || IsTaskAlwaysDisabled(task.TaskType))
                disabledTasks.Add(task);
        }

        foreach (NormalPlayerTask task in disabledTasks)
        {
            Logger.Msg($"Deleted assigned task: {task.TaskType}", "AddTask");
            unusedTasks.Remove(task);
        }

        return;

        bool IsTaskAlwaysDisabled(TaskTypes type) => type switch
        {
            TaskTypes.FuelEngines => Options.CurrentGameMode is CustomGameMode.StopAndGo or CustomGameMode.Speedrun,
            TaskTypes.VentCleaning => Options.CurrentGameMode == CustomGameMode.RoomRush,
            TaskTypes.RunDiagnostics => Options.CurrentGameMode == CustomGameMode.Speedrun,
            _ => false
        };
    }
}

[HarmonyPatch(typeof(NetworkedPlayerInfo), nameof(NetworkedPlayerInfo.RpcSetTasks))]
internal static class RpcSetTasksPatch
{
    // Patch that overwrites the task just before assigning the task and sending the RPC
    // Do not interfere with vanilla task allocation process itself
    public static void Prefix(NetworkedPlayerInfo __instance, [HarmonyArgument(0)] ref Il2CppStructArray<byte> taskTypeIds)
    {
        // Android host somehow doesn't assign tasks in some game modes, so we skip the patch
        bool notTaskingGM = Options.CurrentGameMode is not (CustomGameMode.Standard or CustomGameMode.HideAndSeek or CustomGameMode.Speedrun or CustomGameMode.StopAndGo);
        if (OperatingSystem.IsAndroid() && notTaskingGM) return;

        // Null measures
        if (Main.RealOptionsData == null)
        {
            Logger.Warn("Warning: RealOptionsData is null.", "RpcSetTasksPatch");
            return;
        }

        PlayerControl pc = __instance.Object;
        if (!pc) return;

        CustomRoles role = GhostRolesManager.AssignedGhostRoles.TryGetValue(pc.PlayerId, out (CustomRoles Role, IGhostRole Instance) gr) && gr.Instance is Phantasm or Haunter ? gr.Role : pc.GetCustomRole();

        // Default number of tasks
        var hasCommonTasks = true;
        int numLongTasks = Main.NormalOptions.NumLongTasks;
        int numShortTasks = Main.NormalOptions.NumShortTasks;

        if (Options.OverrideTasksData.AllData.TryGetValue(role, out Options.OverrideTasksData data) && data.DoOverride.GetBool())
        {
            hasCommonTasks = data.AssignCommonTasks.GetBool(); // Whether to assign common tasks (regular tasks)
            // Even if assigned, it will not be reassigned and will be assigned the same common tasks as other crews.
            numLongTasks = data.NumLongTasks.GetInt(); // Number of long tasks to allocate
            numShortTasks = data.NumShortTasks.GetInt(); // Number of short tasks to allocate
            // Longs and shorts are constantly reallocated.
            if (role is CustomRoles.Phantasm or CustomRoles.Haunter) Main.PlayerStates[pc.PlayerId].TaskState.AllTasksCount = numLongTasks + numShortTasks;
        }

        if (pc.Is(CustomRoles.Busy))
        {
            numLongTasks += Options.BusyLongTasks.GetInt();
            numShortTasks += Options.BusyShortTasks.GetInt();
        }

        // Mad Snitch mission coverage
        if (pc.Is(CustomRoles.Snitch) && pc.Is(CustomRoles.Madmate))
        {
            hasCommonTasks = false;
            numLongTasks = 0;
            numShortTasks = Options.MadSnitchTasks.GetInt();
        }

        // GM and Lazy Guy have no tasks
        if (pc.Is(CustomRoles.GM) || pc.Is(CustomRoles.LazyGuy) || notTaskingGM)
        {
            hasCommonTasks = false;
            numShortTasks = 0;
            numLongTasks = 0;
        }

        // Workhorse task assignment
        if (pc.Is(CustomRoles.Workhorse)) (hasCommonTasks, numLongTasks, numShortTasks) = Workhorse.TaskData;

        // Capitalist is going to harm people~
        if (Capitalist.CapitalistAssignTask.TryGetValue(pc.PlayerId, out int extraTasksNum))
        {
            numShortTasks += extraTasksNum;
            Capitalist.CapitalistAssignTask.Remove(pc.PlayerId);
        }

        if (taskTypeIds.Length == 0) hasCommonTasks = false; // Set common to 0 when redistributing tasks

        switch (hasCommonTasks)
        {
            case false when numLongTasks == 0 && numShortTasks == 0:
                numShortTasks = 1; // Task 0 measures
                break;
            case true when numLongTasks == Main.NormalOptions.NumLongTasks && numShortTasks == Main.NormalOptions.NumShortTasks:
                return; // If there are no changes
        }

        // List containing IDs of assignable tasks
        // Clone of the second argument of the original RpcSetTasks
        Il2CppSystem.Collections.Generic.List<byte> TasksList = new();
        foreach (byte num in taskTypeIds) TasksList.Add(num);

        // Reference: ShipStatus.Begin
        // Processing to delete unnecessary assigned tasks
        // If the setting is to assign common tasks, delete all others than common tasks
        // Empty the list if no common tasks are assigned
        int defaultCommonTasksNum = Main.RealOptionsData.GetInt(Int32OptionNames.NumCommonTasks);

        if (hasCommonTasks)
            TasksList.RemoveRange(defaultCommonTasksNum, TasksList.Count - defaultCommonTasksNum);
        else
            TasksList.Clear();

        // HashSet where assigned tasks will be placed
        // Prevents multiple assignments of the same task
        Il2CppSystem.Collections.Generic.HashSet<TaskTypes> usedTaskTypes = new();
        var start2 = 0;
        var start3 = 0;

        // List of assignable long tasks
        Il2CppSystem.Collections.Generic.List<NormalPlayerTask> LongTasks = new();
        foreach (NormalPlayerTask task in ShipStatus.Instance.LongTasks) LongTasks.Add(task);

        Shuffle(LongTasks);

        // List of assignable short tasks
        Il2CppSystem.Collections.Generic.List<NormalPlayerTask> ShortTasks = new();
        foreach (NormalPlayerTask task in ShipStatus.Instance.ShortTasks) ShortTasks.Add(task);

        Shuffle(ShortTasks);

        // Use the task assignment function actually used on the Among Us side.
        ShipStatus.Instance.AddTasksFromList(
            ref start2,
            numLongTasks,
            TasksList,
            usedTaskTypes,
            LongTasks
        );

        ShipStatus.Instance.AddTasksFromList(
            ref start3,
            numShortTasks,
            TasksList,
            usedTaskTypes,
            ShortTasks
        );

        // Convert the list of tasks to array (Il2CppStructArray)
        taskTypeIds = new(TasksList.Count);
        for (var i = 0; i < TasksList.Count; i++) taskTypeIds[i] = TasksList[i];

        #region Logging

        try
        {
            NormalPlayerTask[] allTasks = ShortTasks.ToArray().Concat(LongTasks.ToArray()).ToArray();
            Il2CppSystem.Text.StringBuilder sb = new();

            foreach (TaskTypes taskType in usedTaskTypes)
                GetTaskFromTaskType(taskType)?.AppendTaskText(sb);

            Logger.Info($" Changed Assigned tasks:\n{sb.Replace("\r\n", "\n").ToString()}", pc.GetRealName(), multiLine: true);

            PlayerTask GetTaskFromTaskType(TaskTypes type) => allTasks.FirstOrDefault(t => t.TaskType == type);
        }
        catch { }

        #endregion
    }

    private static void Shuffle<T>(Il2CppSystem.Collections.Generic.List<T> list)
    {
        for (var i = 0; i < list.Count - 1; i++)
        {
            T obj = list[i];
            int rand = IRandom.Instance.Next(i, list.Count);
            list[i] = list[rand];
            list[rand] = obj;
        }
    }
}