#nullable enable

using System;
using System.Linq;
using System.Collections.Generic;
using Godot;
using ShrinkApp;
using ShrinkApp.Starter.Basic;
using ShrinkCommand;
using Cysharp.Threading.Tasks;
using ShrinkDataSaver;
using ShrinkEventBus;
using ShrinkNetwork;
using ShrinkSDK.Godot;
using ShrinkTutorial;

public partial class SampleRoot : ShrinkGodotHost
{
    public override void _Ready()
    {
        base._Ready();
        RunSmokeAsync().Forget();
    }

    private async UniTaskVoid RunSmokeAsync()
    {
        var marker = RequireWoven(GetType().Assembly);
        using var binding = EventBus.Attach(new GodotSubscriber());
        EventBus.Post(new GodotSmokeEvent());
        var assembly = GetType().Assembly;
        var registries = assembly.GetCustomAttributes(false).Select(value => value.GetType().Name).ToHashSet();
        var savedValue = 42;
        ShrinkDataSaverRuntime.Initialize(new ShrinkDataSaverRuntimeConfig
        {
            RootPath = PersistentDataPath,
            CurrentSaveVersion = 1
        });
        ShrinkSave.RegisterModule("godot-smoke", () => savedValue, value => savedValue = value);
        await ShrinkSave.SaveSlotAsync(0, new SaveOptions { SlotName = "Godot Smoke" });
        savedValue = 0;
        await ShrinkSave.LoadSlotAsync(0);
        var app = await StartAppAsync();
        var composition = ShrinkBasicComposition.CreateHost(app.Context.Services);
        var entries = ShrinkBasicComposition.CreateEntries(app.Context.Services);
        await composition.ApplyAsync(entries);
        await composition.ApplyAsync(entries);
        var activeFibers = composition.Runtime.Fibers.Count(fiber => fiber.State == ShrinkContext.ShrinkFiberState.Active);
        var tutorialStorage = new MemoryTutorialStorage();
        var tutorial = new ShrinkTutorialRunner(tutorialStorage);
        var tutorialStarted = tutorial.Start(new ShrinkTutorialData
        {
            TutorialId = "godot-smoke",
            Steps = { new ShrinkTutorialStep { StepId = "one", CompleteCondition = ShrinkTutorialCompleteCondition.AnyClick } }
        });
        var tutorialCompleted = tutorial.CompleteStep();

        if (GodotSubscriber.Calls != 1 || GodotStaticSubscriber.Calls != 1 || savedValue != 42 ||
            !app.IsRunning || !GodotInstaller.Initialized ||
            activeFibers != 3 || !tutorialStarted || !tutorialCompleted || !tutorialStorage.Saved ||
            !registries.Contains(nameof(ShrinkCommandStaticRegistryAttribute)) ||
            !registries.Contains(nameof(ShrinkNetworkMessageRegistryAttribute)))
        {
            GD.PushError("ShrinkSDK Godot smoke failed.");
            GetTree().Quit(1);
            return;
        }
        await composition.ShutdownAsync();
        var smokePath = System.IO.Path.Combine(OS.GetUserDataDir(), "shrink_smoke_pass.txt");
        System.IO.File.WriteAllText(smokePath, $"CodeGen={marker.WeaverVersion};DataSaver={savedValue}");
        if (!System.IO.File.Exists(smokePath))
            throw new System.IO.IOException($"Failed to create smoke sentinel: {smokePath}");
        GD.Print($"SHRINK_GODOT_SMOKE_PASS CodeGen={marker.WeaverVersion} DataSaver={savedValue}");
        GetTree().Quit(0);
    }
}

public sealed class MemoryTutorialStorage : IShrinkTutorialStorage
{
    private ShrinkTutorialProgress _progress = new();
    public bool Saved { get; private set; }
    public ShrinkTutorialProgress Load() => _progress;
    public void Save(ShrinkTutorialProgress progress) { _progress = progress; Saved = true; }
    public void Reset() { _progress = new ShrinkTutorialProgress(); Saved = false; }
}

public readonly struct GodotSmokeEvent : IShrinkEvent { }

[ShrinkEventSubscriber]
public sealed class GodotSubscriber
{
    public static int Calls;
    [ShrinkSubscribe] private void Handle(GodotSmokeEvent value) => Calls++;
}

[ShrinkEventSubscriber]
public static class GodotStaticSubscriber
{
    public static int Calls;
    [ShrinkSubscribe] private static void Handle(GodotSmokeEvent value) => Calls++;
}

[ShrinkCommandSubscriber]
public static class GodotCommands
{
    [ShrinkCommand("godot/smoke")] public static void Smoke() { }
}

[ShrinkNetworkMessage(42001, "godot/smoke")]
public sealed class GodotSmokeMessage : IShrinkNetworkMessage { }

[ShrinkAppModuleInstaller]
public sealed class GodotInstaller : IShrinkAppModuleInstaller
{
    public static bool Initialized;
    public string ModuleId => "godot-smoke";
    public int Order => 0;
    public IReadOnlyList<string> DependsOn => Array.Empty<string>();
    public void RegisterServices(ShrinkAppContext context) => context.Services.Register(this);
    public UniTask InitializeAsync(ShrinkAppContext context)
    {
        Initialized = true;
        return UniTask.CompletedTask;
    }
}