using Content.Shared.Body.Systems;
using Content.Shared.Buckle.Components;
using Content.Shared.Movement.Events;
using Content.Shared.Movement.Systems;
using Content.Shared.Standing;
using Content.Shared.Throwing;

namespace Content.Shared.Traits.Assorted.Systems;

public sealed class LegsParalyzedSystem : EntitySystem
{
    [Dependency] private readonly MovementSpeedModifierSystem _movementSpeedModifierSystem = default!;
    [Dependency] private readonly StandingStateSystem _standingSystem = default!;
    [Dependency] private readonly SharedBodySystem _bodySystem = default!;

    public override void Initialize()
    {
        SubscribeLocalEvent<Components.LegsParalyzedComponent, ComponentStartup>(OnStartup);
        SubscribeLocalEvent<Components.LegsParalyzedComponent, ComponentShutdown>(OnShutdown);
        SubscribeLocalEvent<Components.LegsParalyzedComponent, BuckledEvent>(OnBuckled);
        SubscribeLocalEvent<Components.LegsParalyzedComponent, UnbuckledEvent>(OnUnbuckled);
        SubscribeLocalEvent<Components.LegsParalyzedComponent, ThrowPushbackAttemptEvent>(OnThrowPushbackAttempt);
        //SubscribeLocalEvent<Components.LegsParalyzedComponent, UpdateCanMoveEvent>(OnUpdateCanMoveEvent); // WWDP
    }

    private void OnStartup(EntityUid uid, Components.LegsParalyzedComponent component, ComponentStartup args)
    {
        // TODO: In future probably must be surgery related wound

        // WWDP edit start
        //_movementSpeedModifierSystem.ChangeBaseSpeed(uid, 0, 0, 20);
        _standingSystem.Down(uid);
        _bodySystem.UpdateMovementSpeed(uid);
        // WWDP edit end
    }

    private void OnShutdown(EntityUid uid, Components.LegsParalyzedComponent component, ComponentShutdown args)
    {
        _standingSystem.Stand(uid);
        _bodySystem.UpdateMovementSpeed(uid);
    }

    private void OnBuckled(EntityUid uid, Components.LegsParalyzedComponent component, ref BuckledEvent args) => _standingSystem.Stand(uid);

    private void OnUnbuckled(EntityUid uid, Components.LegsParalyzedComponent component, ref UnbuckledEvent args) => _standingSystem.Down(uid);

    // WWDP disabled since there is a minimal move speed
    // private void OnUpdateCanMoveEvent(EntityUid uid, Components.LegsParalyzedComponent component, UpdateCanMoveEvent args) => args.Cancel();

    private void OnThrowPushbackAttempt(EntityUid uid, Components.LegsParalyzedComponent component, ThrowPushbackAttemptEvent args) => args.Cancel();
}