[Explorer] Default + Custom Criteria improvements (#130)

* [Explorer] Default + Custom Criteria improvements

For Custom Criteria:
* If a custom criteria throws an error or fails to parse/load, Core no longer disables custom criteria entirely -- it now disables the problematic criteria until you update the custom criteria file and trigger a new journal/re-read (which reloads the source file).

For Default Criteria:
* Adds landable status of the body triggering the Close Ring/Belt proximity. (Requested in Discord somewhere.)
* Adds the triggering ring name to the Wide Ring criteria. (I believe also requested, can't remember now.)

ObservatoryExplorer/CustomCriteriaManager.cs

@@ -12,6 +12,7 @@ namespace Observatory.Explorer
     {
         private Lua LuaState;
         private Dictionary<String,LuaFunction> CriteriaFunctions;
+        private Dictionary<string, string> CriteriaWithErrors = new();
         Action<Exception, String> ErrorLogger;
         private uint ScanCount;
 
@@ -180,6 +181,7 @@ namespace Observatory.Explorer
             #endregion
 
             CriteriaFunctions.Clear();
+            CriteriaWithErrors.Clear();
             var criteria = File.Exists(criteriaPath) ? File.ReadAllLines(criteriaPath) : Array.Empty<string>();
             StringBuilder script = new();
 
@@ -260,8 +262,8 @@ namespace Observatory.Explorer
                 StringBuilder errorDetail = new();
                 errorDetail.AppendLine("Error Reading Custom Criteria File:")
                     .AppendLine(originalScript)
-                    .AppendLine("NOTE: Custom criteria processing has been disabled to prevent further errors.");
-                ErrorLogger(e, errorDetail.ToString());
+                    .AppendLine("To correct this problem, make changes to the Lua source file, save it and either re-run read-all or scan another body. It will be automatically reloaded."); ErrorLogger(e, errorDetail.ToString());
+                CriteriaFunctions.Clear(); // Don't use partial parse.
                 throw new CriteriaLoadException(e.Message, originalScript);
             }
         }
@@ -273,6 +275,9 @@ namespace Observatory.Explorer
 
             foreach (var criteriaFunction in CriteriaFunctions)
             {
+                // Skip criteria which have previously thrown an error. We can't remove them from the dictionary while iterating it. 
+                if (CriteriaWithErrors.ContainsKey(criteriaFunction.Key)) continue;
+
                 var scanList = scanHistory[scan.SystemAddress].Values.ToList();
 
                 int bioSignals;
@@ -326,15 +331,23 @@ namespace Observatory.Explorer
                 }
                 catch (NLua.Exceptions.LuaScriptException e)
                 {
-                    settings.EnableCustomCriteria = false;
                     results.Add((e.Message, scan.Json, false));
 
                     StringBuilder errorDetail = new();
                     errorDetail.AppendLine($"while processing custom criteria '{criteriaFunction.Key}' on scan:")
                         .AppendLine(scan.Json)
-                        .AppendLine("NOTE: Custom criteria processing has been disabled to prevent further errors.");
+                        .AppendLine("To correct this problem, make changes to the Lua source file, save it and either re-run read-all or scan another body. It will be automatically reloaded.");
                     ErrorLogger(e, errorDetail.ToString());
-                    break;
+                    CriteriaWithErrors.Add(criteriaFunction.Key, e.Message + Environment.NewLine + errorDetail.ToString());
+                }
+            }
+
+            // Remove any erroring criteria. They will be repopulated next time the file is parsed.
+            if (CriteriaWithErrors.Count > 0)
+            {
+                foreach (var criteriaKey in CriteriaWithErrors.Keys)
+                {
+                    if (CriteriaFunctions.ContainsKey(criteriaKey)) CriteriaFunctions.Remove(criteriaKey);
                 }
             }
 

ObservatoryExplorer/DefaultCriteria.cs

@@ -104,8 +104,9 @@ namespace Observatory.Explorer
                         if (separation < scan.Radius * 10)
                         {
                             var ringTypeName = ring.Name.Contains("Belt") ? "Belt" : "Ring";
+                            var isLandable = scan.Landable ? ", Landable" : "";
                             results.Add($"Close {ringTypeName} Proximity",
-                                $"Orbit: {scan.SemiMajorAxis / 1000:N0}km, Radius: {scan.Radius / 1000:N0}km, Distance from {ringTypeName.ToLower()}: {separation / 1000:N0}km");
+                                $"Orbit: {scan.SemiMajorAxis / 1000:N0}km, Radius: {scan.Radius / 1000:N0}km, Distance from {ringTypeName.ToLower()}: {separation / 1000:N0}km{isLandable}");
                         }
                     }
                 }
@@ -130,7 +131,8 @@ namespace Observatory.Explorer
                     var ringWidth = ring.OuterRad - ring.InnerRad;
                     if (ringWidth > scan.Radius * 5)
                     {
-                        results.Add("Wide Ring", $"Width: {ringWidth / 299792458:N2}Ls / {ringWidth / 1000:N0}km, Parent Radius: {scan.Radius / 1000:N0}km");
+                        var ringName = ring.Name.Replace(scan.BodyName, "").Trim();
+                        results.Add("Wide Ring", $"{ringName}: Width: {ringWidth / 299792458:N2}Ls / {ringWidth / 1000:N0}km, Parent Radius: {scan.Radius / 1000:N0}km");
                     }
                 }
             }

ObservatoryExplorer/Explorer.cs

@@ -188,7 +188,6 @@ namespace Observatory.Explorer
                                 Details = e.OriginalScript
                             };
                             ObservatoryCore.AddGridItem(ExplorerWorker, exceptionResult);
-                            ExplorerWorker.settings.EnableCustomCriteria = false;
                         }
                         
                         CriteriaLastModified = fileModified;