Delta-v/Content.Shared/_DV/Cargo/Systems/LogisticStatsSystem.cs

using Content.Shared._DV.Cargo.Components;
using JetBrains.Annotations;

namespace Content.Shared._DV.Cargo.Systems;

public sealed partial class LogisticStatsSystem : EntitySystem
{
    [PublicAPI]
    public void AddOpenedMailEarnings(EntityUid uid, StationLogisticStatsComponent component, int earnedMoney)
    {
        component.Metrics = component.Metrics with
        {
            Earnings = component.Metrics.Earnings + earnedMoney,
            OpenedCount = component.Metrics.OpenedCount + 1
        };
        UpdateLogisticsStats(uid);
    }

    [PublicAPI]
    public void AddExpiredMailLosses(EntityUid uid, StationLogisticStatsComponent component, int lostMoney)
    {
        component.Metrics = component.Metrics with
        {
            ExpiredLosses = component.Metrics.ExpiredLosses + lostMoney,
            ExpiredCount = component.Metrics.ExpiredCount + 1
        };
        UpdateLogisticsStats(uid);
    }

    [PublicAPI]
    public void AddDamagedMailLosses(EntityUid uid, StationLogisticStatsComponent component, int lostMoney)
    {
        component.Metrics = component.Metrics with
        {
            DamagedLosses = component.Metrics.DamagedLosses + lostMoney,
            DamagedCount = component.Metrics.DamagedCount + 1
        };
        UpdateLogisticsStats(uid);
    }

    [PublicAPI]
    public void AddTamperedMailLosses(EntityUid uid, StationLogisticStatsComponent component, int lostMoney)
    {
        component.Metrics = component.Metrics with
        {
            TamperedLosses = component.Metrics.TamperedLosses + lostMoney,
            TamperedCount = component.Metrics.TamperedCount + 1
        };
        UpdateLogisticsStats(uid);
    }

    private void UpdateLogisticsStats(EntityUid uid)
    {
        var ev = new LogisticStatsUpdatedEvent(uid);
        RaiseLocalEvent(uid, ref ev);
    }
}

[ByRefEvent]
public record struct LogisticStatsUpdatedEvent(EntityUid Station)
{
    public EntityUid Station = Station;
    public bool Handled = false;
}