Fix for KSP 1.11+ not accounting for modules implementing IPartCostModifier when refunding parts on vessel recovery

KSPRecoveryFix.cs

using System;
using KSP.Localization;
using KSP.UI.Screens;
using KSP.UI.Screens.SpaceCenter.MissionSummaryDialog;
using KSP.UI.Util;
using UnityEngine;

namespace TestPlugin
{
    [KSPAddon(KSPAddon.Startup.AllGameScenes, false)]
    public class FixRecoveryCosts : MonoBehaviour
    {
        private MissionRecoveryDialog currentDialog;
        private double lastFundsRecovered;
        private ResourceWidget lastResourceWidget;

        private void Start()
        {
            Version KSPVersion = new Version(Versioning.version_major, Versioning.version_minor, Versioning.Revision);

            Version MinVersion = new Version(1, 11, 0);
            Version MaxVersion = new Version(1, 11, 9);

            if (KSPVersion >= MinVersion && KSPVersion <= MaxVersion)
            {
                GameEvents.onVesselRecoveryProcessing.Add(OnVesselRecoveryProcessing);
                GameEvents.onGUIRecoveryDialogSpawn.Add(OnGUIRecoveryDialogSpawn);
                GameEvents.onGUIRecoveryDialogDespawn.Add(OnGUIRecoveryDialogDespawn);
            }

            this.enabled = false;
        }

        private void OnDestroy()
        {
            GameEvents.onVesselRecoveryProcessing.Remove(OnVesselRecoveryProcessing);
            GameEvents.onGUIRecoveryDialogSpawn.Remove(OnGUIRecoveryDialogSpawn);
            GameEvents.onGUIRecoveryDialogDespawn.Remove(OnGUIRecoveryDialogDespawn);
        }

        private void OnGUIRecoveryDialogSpawn(MissionRecoveryDialog dialog)
        {
            this.enabled = true;
            ResetFields();
            currentDialog = dialog;
        }

        private void OnGUIRecoveryDialogDespawn(MissionRecoveryDialog dialog)
        {
            ResetFields();
            this.enabled = false;
        }

        private void OnVesselRecoveryProcessing(ProtoVessel pv, MissionRecoveryDialog mrDialog, float recoveryScore)
        {
            lastFundsRecovered = 0.0;
            int partCount = 0;

            if (pv == null)
            {
                ResetFields();
                return;
            }

            foreach (ProtoPartSnapshot protoPartSnapshot in pv.GetAllProtoPartsIncludingCargo())
            {
                if (protoPartSnapshot.moduleCosts != 0f)
                {
                    partCount++;
                    lastFundsRecovered += protoPartSnapshot.moduleCosts;
                }
            }

            lastFundsRecovered *= recoveryScore;

            if (lastFundsRecovered != 0.0)
            {
                Debug.Log($"[VesselRecoveryFix] Extra recovered funds for {pv.vesselName} from partmodules : {lastFundsRecovered}");

                Funding.Instance.AddFunds(lastFundsRecovered, TransactionReasons.VesselRecovery);
                
                ConfigNode dummyResNode = new ConfigNode();
                dummyResNode.AddValue("name", "dummyRecoveryResDef");
                dummyResNode.AddValue("displayName", $"Part modules recovered from {partCount} part(s) :");
                PartResourceDefinition dummyRecoveryResDef = new PartResourceDefinition();
                dummyRecoveryResDef.Load(dummyResNode);
                lastResourceWidget = ResourceWidget.Create(dummyRecoveryResDef, (float)lastFundsRecovered, 1f, mrDialog);
                mrDialog.AddResourceWidget(lastResourceWidget);
            }
        }

        private void Update()
        {
            if (currentDialog == null)
            {
                return;
            }

            if (currentDialog.fundsEarned > 0.0 && lastFundsRecovered > 0.0)
            {
                currentDialog.fundsEarned += lastFundsRecovered;

                foreach (ImgText imgText in currentDialog.gameObject.GetComponentsInChildren<ImgText>())
                {
                    if (imgText.gameObject.name == "TabFooterPanel")
                    {
                        imgText.text = Localizer.Format("#autoLOC_419438", currentDialog.fundsEarned.ToString("N0"));
                    }
                }

                if (lastResourceWidget != null)
                {
                    lastResourceWidget.rscWidgetQtyContent.sprite = currentDialog.fundsIconGreen;
                    lastResourceWidget.rscWidgetQtyContent.text = $"+ {lastFundsRecovered.ToString("N0")} {Localizer.Format("#autoLOC_6002218")}";
                    lastResourceWidget.rscWidgetUnitValueContent.gameObject.SetActive(false);
                    lastResourceWidget.rscWidgetTotalValueContent.gameObject.SetActive(false);
                }

                ResetFields();
                enabled = false;

            }
        }

        private void ResetFields()
        {
            currentDialog = null;
            lastResourceWidget = null;
            lastFundsRecovered = 0.0;
        }
    }
}