using Dalamud.Hooking;
using Dalamud.IoC;
using Dalamud.Plugin;
using Dalamud.Plugin.Services;
using Dalamud.Utility.Signatures;
using Ktisis.Structs.Env;
using Serilog;
using Serilog.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Reflection.Emit;
using System.Runtime.Intrinsics.Arm;

namespace VoidBox;

public sealed unsafe class Plugin : IDalamudPlugin
{
    private readonly List<Cmd> _cmds;

    public Plugin([RequiredVersion("1.0")] DalamudPluginInterface pluginInterface)
    {
        pluginInterface.Create<Service>();

        Service.Plugin = this;

        Service.Config = Service.PluginInterface.GetPluginConfig() as Configuration ?? new();
        Service.Config.Initialize(Service.PluginInterface);

        Service.PluginUI = new();

        _cmds = typeof(Plugin).Assembly.GetTypes()
            .Where(t => !t.IsAbstract && typeof(Cmd).IsAssignableFrom(t))
            .Select(t => (Cmd) Activator.CreateInstance(t)!)
            .ToList();

        foreach (Cmd cmd in _cmds)
        {
            cmd.Register(Service.CommandManager);
        }

        Service.GameInteropProvider.InitializeFromAttributes(this);

        EnvStateCopyHook?.Enable();
    }

    public string Name => "VoidBox";

    public void Dispose()
    {
        EnvStateCopyHook?.Dispose();

        foreach (Cmd cmd in _cmds)
        {
            cmd.Dispose();
        }

        Service.PluginUI.Dispose();

        Service.Plugin = null!;
    }

    private void Replace(EnvState* env)
    {
        if (!Service.Config.IsEnabled)
        {
            return;
        }

        if (env->SkyId != 0)
        {
            return;
        }

        env->SkyId = 1;
        env->Clouds.CloudTexture = 10;
        env->Clouds.CloudSideTexture = 48;
        env->Clouds.CloudColor = new Vector3(0f, 0f, 0f);
        env->Clouds.Color2 = new Vector3(1f, 1f, 1f);
        env->Clouds.Gradient = 0.5f;
        env->Clouds.SideHeight = 2f;

        env->Fog.Color = new Vector4(0.4f, 0.4f, 0.4f, 1f);
        env->Fog.Distance = 50f;
        env->Fog.Thickness = 5f;
        env->Fog.Opacity = 0.231f;
        env->Fog.SkyVisibility = 0.254f;

        env->Stars.Stars = 20f;
        env->Stars.StarIntensity = 1.104f;
        env->Stars.Constellations = 4.686f;
        env->Stars.ConstellationIntensity = 1.172f;
        env->Stars.GalaxyIntensity = 5.628f;
        env->Stars.MoonColor = new Vector4(1f, 1f, 1f, 1f);
        env->Stars.MoonBrightness = 0.603f;
    }

    private unsafe delegate nint EnvStateCopyDelegate(EnvState* dest, EnvState* src);

    [Signature("E8 ?? ?? ?? ?? 49 3B F5", DetourName = nameof(EnvStateCopyDetour))]
    private Hook<EnvStateCopyDelegate> EnvStateCopyHook = null!;
    private unsafe nint EnvStateCopyDetour(EnvState* dest, EnvState* src)
    {
        var exec = EnvStateCopyHook.Original(dest, src);

        Replace(dest);

        return exec;
    }
}