CatStation/Content.Server/Body/Systems/BloodstreamSystem.cs

using Content.Shared.Body.Components;
using Content.Shared.Body.Systems;
using Content.Shared.Chemistry.Reagent;
using Content.Shared.Forensics;

namespace Content.Server.Body.Systems;

public sealed class BloodstreamSystem : SharedBloodstreamSystem
{
    public override void Initialize()
    {
        base.Initialize();

        SubscribeLocalEvent<BloodstreamComponent, GenerateDnaEvent>(OnDnaGenerated);
    }

    // forensics is not predicted yet
    private void OnDnaGenerated(Entity<BloodstreamComponent> entity, ref GenerateDnaEvent args)
    {
        if (SolutionContainer.ResolveSolution(entity.Owner, entity.Comp.BloodSolutionName, ref entity.Comp.BloodSolution, out var bloodSolution))
        {
            var data = NewEntityBloodData(entity);
            entity.Comp.BloodReferenceSolution.SetReagentData(data);

            foreach (var reagent in bloodSolution.Contents)
            {
                List<ReagentData> reagentData = reagent.Reagent.EnsureReagentData();
                reagentData.RemoveAll(x => x is DnaData);
                reagentData.AddRange(data);
            }
        }
        else
            Log.Error("Unable to set bloodstream DNA, solution entity could not be resolved");
    }
}