using System.Linq;
using Content.Server.Humanoid;
using Content.Server.IdentityManagement;
using Content.Shared._White.Wizard.Mirror;
using Content.Shared.Humanoid;
using Content.Shared.Humanoid.Markings;
using Content.Shared.Interaction;
using Content.Shared.Physics;
using Content.Shared.Preferences;
using Content.Shared.UserInterface;
using Robust.Server.GameObjects;
using Robust.Shared.Player;

namespace Content.Server._White.Wizard.Mirror;

public sealed class WizardMirrorSystem : EntitySystem
{
    [Dependency] private readonly HumanoidAppearanceSystem _humanoid = default!;
    [Dependency] private readonly UserInterfaceSystem _uiSystem = default!;
    [Dependency] private readonly SharedInteractionSystem _interaction = default!;
    [Dependency] private readonly MetaDataSystem _metaData = default!;
    [Dependency] private readonly IdentitySystem _identity = default!;

    public override void Initialize()
    {
        base.Initialize();
        SubscribeLocalEvent<WizardMirrorComponent, ActivatableUIOpenAttemptEvent>(OnOpenUIAttempt);

        Subs.BuiEvents<WizardMirrorComponent>(WizardMirrorUiKey.Key,
            subs =>
            {
                subs.Event<BoundUIClosedEvent>(OnUIClosed);
                subs.Event<WizardMirrorSave>(OnSave);
            });

        SubscribeLocalEvent<WizardMirrorComponent, InteractHandEvent>(OnInteractHand);
        SubscribeLocalEvent<WizardMirrorComponent, AfterInteractEvent>(OnMagicMirrorInteract);

        SubscribeLocalEvent<WizardMirrorComponent, BoundUserInterfaceCheckRangeEvent>(OnRangeCheck);
    }

    private void OnOpenUIAttempt(EntityUid uid, WizardMirrorComponent mirror, ActivatableUIOpenAttemptEvent args)
    {
        if (!HasComp<HumanoidAppearanceComponent>(args.User))
            args.Cancel();
    }

    private static void OnUIClosed(Entity<WizardMirrorComponent> ent, ref BoundUIClosedEvent args)
    {
        ent.Comp.Target = null;
    }

    private void OnSave(EntityUid uid, WizardMirrorComponent component, WizardMirrorSave args)
    {
        if (!TryComp(component.Target, out HumanoidAppearanceComponent? humanoid) || !string.IsNullOrEmpty(humanoid.Initial))
            return;

        _humanoid.LoadProfile(component.Target.Value, args.Profile, humanoid);
        _metaData.SetEntityName(component.Target.Value, args.Profile.Name);
        _identity.QueueIdentityUpdate(component.Target.Value);
    }

    private void OnInteractHand(EntityUid uid, WizardMirrorComponent component, ref InteractHandEvent args)
    {
        UpdateInterface(uid, args.User, component);
    }

    private void OnMagicMirrorInteract(EntityUid uid, WizardMirrorComponent component, ref AfterInteractEvent args)
    {
        if (!args.CanReach || args.Target == null)
            return;

        if (!HasComp<ActorComponent>(args.User))
            return;

        if (!_uiSystem.TryOpenUi(uid, WizardMirrorUiKey.Key, args.User))
            return;

        UpdateInterface(uid, args.Target.Value, component);
    }

    private void OnRangeCheck(EntityUid uid, WizardMirrorComponent component, ref BoundUserInterfaceCheckRangeEvent args)
    {
        component.Target ??= args.Actor;

        if (!component.Target.HasValue || !_interaction.InRangeUnobstructed(uid, component.Target!.Value, range: 2f, CollisionGroup.None))
            args.Result = BoundUserInterfaceRangeResult.Fail;
    }

    private void UpdateInterface(EntityUid mirrorUid, EntityUid targetUid, WizardMirrorComponent component)
    {
        if (!TryComp<HumanoidAppearanceComponent>(targetUid, out var humanoid) ||
            !TryComp<MetaDataComponent>(targetUid, out var meta))
            return;

        var hair = humanoid.MarkingSet.TryGetCategory(MarkingCategories.Hair, out var hairMarkings)
            ? new List<Marking>(hairMarkings)[0]
            : null;

        var facialHair = humanoid.MarkingSet.TryGetCategory(MarkingCategories.FacialHair, out var facialHairMarkings)
            ? new List<Marking>(facialHairMarkings)[0]
            : null;

        var profile = HumanoidCharacterProfile.RandomWithSpecies(humanoid.Species)
            .WithAge(humanoid.Age)
            .WithGender(humanoid.Gender)
            .WithName(meta.EntityName)
            .WithSex(humanoid.Sex)
            .WithVoice(humanoid.Voice)
            .WithBodyType(humanoid.BodyType);

        profile = profile.WithCharacterAppearance(
            profile.WithCharacterAppearance(
                profile.Appearance.WithSkinColor(humanoid.SkinColor))
                .Appearance.WithEyeColor(humanoid.EyeColor));

        if (hair != null)
        {
            profile = profile.WithCharacterAppearance(
                profile.WithCharacterAppearance(
                        profile.Appearance.WithHairStyleName(hair.MarkingId))
                    .Appearance.WithHairColor(hair.MarkingColors[0]));
        }

        if (facialHair != null)
        {
            profile = profile.WithCharacterAppearance(
                profile.WithCharacterAppearance(
                        profile.Appearance.WithFacialHairStyleName(facialHair.MarkingId))
                    .Appearance.WithFacialHairColor(facialHair.MarkingColors[0]));
        }

        profile = profile.WithCharacterAppearance(profile.Appearance.WithMarkings(humanoid.MarkingSet.GetForwardEnumerator().ToList()));

        var state = new WizardMirrorUiState(profile);

        component.Target = targetUid;
        _uiSystem.SetUiState(mirrorUid, WizardMirrorUiKey.Key, state);
    }
}