wwdpublic/Content.Server/EntityEffects/Effects/AddReagentToBlood.cs

using System;
using Robust.Shared.IoC;
using Robust.Shared.Log;
using Content.Server.Body.Components;
using Content.Shared.Chemistry.Reagent;
using Content.Server.Body.Systems;
using Content.Shared.EntityEffects;
using Content.Shared.FixedPoint;
using Robust.Shared.Prototypes;
using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
using Content.Shared.Chemistry.Components;
using Content.Shared.Chemistry.EntitySystems;

namespace Content.Server.EntityEffects.Effects;

public sealed partial class AddReagentToBlood : EntityEffect
{

    private readonly SharedSolutionContainerSystem _solutionContainers;

    public AddReagentToBlood(SharedSolutionContainerSystem solutionContainers)
    {
        _solutionContainers = solutionContainers;
    }

    [DataField(customTypeSerializer: typeof(PrototypeIdSerializer<ReagentPrototype>))]
    public string? Reagent = null;

    [DataField]
    public FixedPoint2 Amount = default!;

    public override void Effect(EntityEffectBaseArgs args)
    {
        if (!args.EntityManager.TryGetComponent<BloodstreamComponent>(args.TargetEntity, out var blood))
            return;

        if (args is not EntityEffectReagentArgs reagentArgs)
            return;

        if (Reagent is null)
            return;

        var sys = args.EntityManager.System<BloodstreamSystem>();
        var amt = Amount;
        var solution = new Solution();
        solution.AddReagent(Reagent, amt);
        sys.TryAddToChemicals(args.TargetEntity, solution, blood);
    }

    protected override string? ReagentEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys)
    {
        if (Reagent is not null && prototype.TryIndex(Reagent, out ReagentPrototype? reagentProto))
        {
            return Loc.GetString("reagent-effect-guidebook-add-to-chemicals",
                ("chance", Probability),
                ("deltasign", MathF.Sign(Amount.Float())),
                ("reagent", reagentProto.LocalizedName),
                ("amount", MathF.Abs(Amount.Float())));
        }

        var logger = IoCManager.Resolve<ILogManager>().GetSawmill("effects");
        logger.Error($"Failed to find reagent prototype {Reagent} for AddReagentToBlood effect guidebook text");
        return null; // Return null instead of throwing exception
    }
}