Address compiler warnings

Core/Calculation/EventAssignmentThresholds.cs

@@ -4,7 +4,7 @@ namespace Core.Calculation;
 
 public class EventAssignmentThresholds
 {
-    public EventDefinition Event { get; set; }
+    public EventDefinition Event { get; set; } = null!;
     public int TeamCount { get; set; }
     public int LowerBound { get; set; }
     public int UpperBound { get; set; }

Core/Calculation/TeamScheduleTimeSlot.cs

@@ -10,22 +10,22 @@ public class TeamScheduleTimeSlot
     /// <summary>
     /// Gets or sets the name of this time slot.
     /// </summary>
-    public string Name { get; set; }
+    public string Name { get; set; } = null!;
 
     /// <summary>
     /// Gets or sets the teams scheduled in this time slot.
     /// </summary>
-    public Team[] Teams;
+    public Team[] Teams = null!;
 
     /// <summary>
     /// Gets or sets the students who are not scheduled in any team during this time slot.
     /// </summary>
-    public Student[] UnscheduledStudents;
+    public Student[] UnscheduledStudents = null!;
 
     /// <summary>
     /// Gets or sets the students who have overlapping team meetings in this time slot.
     /// </summary>
-    public IEnumerable<(Student student, IEnumerable<Team> teams)> StudentOverlaps;
+    public IEnumerable<(Student student, IEnumerable<Team> teams)> StudentOverlaps = null!;
 
     /// <summary>
     /// Checks if a student has overlapping team meetings in this time slot.

Core/Entities/EventDefinition.cs

@@ -9,7 +9,7 @@ public class EventDefinition
     [Required]
     [StringLength(100, MinimumLength = 2)]
     [Display(Name = "Event Name")]
-    public string Name { get; set; }
+    public string Name { get; set; } = null!;
 
     [Required]
     [StringLength(40, MinimumLength = 2)]
@@ -72,7 +72,7 @@ public class EventDefinition
 
     [Required]
     [StringLength(256)]
-    public string Eligibility { get; set; }
+    public string Eligibility { get; set; } = null!;
     [StringLength(4096)]
 	public string? Theme { get; set; }
     [StringLength(1024)]

Core/Entities/EventOccurrence.cs

@@ -3,12 +3,12 @@ namespace Core.Entities
 {
 	public class EventOccurrence
 	{
-		public string Name { get; set; }
-		public string Time { get; set; }
-		public string Date { get; set; }
+		public string Name { get; set; } = null!;
+		public string Time { get; set; } = null!;
+		public string Date { get; set; } = null!;
 		public DateTime StartTime { get; set; }
 		public DateTime? EndTime { get; set; }
-		public string Location { get; set; }
+		public string Location { get; set; } = null!;
 
 		public bool SignupSubmitPickup =>
 			Name.Contains("Sign-up") ||

Core/Entities/PartialTeam.cs

@@ -2,7 +2,7 @@
 
 public class PartialTeam : Team
 {
-	public IList<Student> OmittedStudents { get; set; }
+	public IList<Student> OmittedStudents { get; set; } = null!;
 
     public override Team CloneWithOmittedStudents(IEnumerable<Student> studentsToOmit)
 	{

Core/Entities/Student.cs

@@ -10,12 +10,12 @@ public class Student : IEquatable<Student>
     [Required]
     [StringLength(50,MinimumLength = 2)]
     [Display(Name = "First Name")]
-    public string FirstName { get; set; }
+    public string FirstName { get; set; } = null!;
 
     [Required]
     [StringLength(50, MinimumLength = 2)]
     [Display(Name = "Last Name")]
-    public string LastName { get; set; }
+    public string LastName { get; set; } = null!;
 
     [Range(5,12)]
     [Display(Name = "Grade")]
@@ -44,7 +44,7 @@ public class Student : IEquatable<Student>
     [Display(Name = "Officer Role")]
     public OfficerRole? OfficerRole { get; set;  }
 
-    public List<Team> Teams { get; set; } = null;
+    public List<Team> Teams { get; set; } = null!;
     public List<EventDefinition> RankedEvents { get; } = [];
     public List<StudentEventRanking> EventRankings { get; } = [];
 

Core/Entities/StudentEventStatistics.cs

@@ -2,7 +2,7 @@
 
 public class StudentEventStatistics
 {
-    public Student Student { get; set; }
+    public Student Student { get; set; } = null!;
     public List<EventDefinition> Events { get; set; } = [];
 
     public int? TotalLevelOfEffort => Events.Sum(e => e.LevelOfEffort);

Core/Entities/Team.cs

@@ -6,7 +6,7 @@ public class Team
     public int Id { get; set; }
 
 	[Required]
-    public EventDefinition Event { get; set; }
+    public EventDefinition Event { get; set; } = null!;
 
     public List<Student> Students { get; set; } = [];
 

Core/Parsers/AssignmentRequirementParser.cs

@@ -15,7 +15,7 @@ public class AssignmentRequirementParser : CsvParserBase
 		CsvReader.Read();
 		CsvReader.ReadHeader();
 		var studentColumns =
-			CsvReader.HeaderRecord.Select(h => h.Trim()).Where(h => !string.IsNullOrEmpty(h)).ToArray();
+			CsvReader.HeaderRecord!.Select(h => h.Trim()).Where(h => !string.IsNullOrEmpty(h)).ToArray();
 
 		var studentArray = 
             studentColumns
@@ -30,21 +30,25 @@ public class AssignmentRequirementParser : CsvParserBase
 				throw new Exception($"Could not find eventDefinition named {eventShortName}");
 			for (int i = 0; i <= studentArray.Length; i++)
 			{
+				var student = studentArray[i];
+				if (student == null)
+					continue;
+
 				var field = CsvReader.GetField(i + 1);
 				switch (field)
 				{
 					case "x":
 					case "X":
-						assumptions.Add(new AssignmentRequirement(evt, studentArray[i], Requirement.Exclude));
+						assumptions.Add(new AssignmentRequirement(evt, student, Requirement.Exclude));
 						break;
 					case "i":
 					case "I":
-						assumptions.Add(new AssignmentRequirement(evt, studentArray[i], Requirement.Include));
+						assumptions.Add(new AssignmentRequirement(evt, student, Requirement.Include));
 						break;
 					default:
 						break;
 				}
-				
+
 			}
 		}
 

Core/Parsers/EventDefinitionParser.cs

@@ -53,8 +53,8 @@ public class EventDefinitionParser : CsvParserBase
 
 			var competitiveEvent = new EventDefinition
 			{
-				Name = name.Trim(), 
-				ShortName = shortName.Trim(), 
+				Name = name.Trim(),
+				ShortName = shortName?.Trim() ?? string.Empty,
 				EventFormat = format,
 				ChapterEligibilityCountState = stateTeams,
 				MinTeamSize = min,
@@ -64,10 +64,10 @@ public class EventDefinitionParser : CsvParserBase
 				//RegionalPresubmit = regionalPresubmit.Trim() == "TRUE",
 				Notes = regionalNotes,
 				Documentation= documentation,
-				Presubmission = statePresubmission.Trim() == "TRUE",
+				Presubmission = statePresubmission?.Trim() == "TRUE",
 				//StatePretesting = statePretesting.Trim() == "TRUE",
 				//StatePreliminaryRound = statePreliminary.Trim() == "TRUE",
-				Eligibility = eligibility,
+				Eligibility = eligibility ?? string.Empty,
 				Theme = theme,
 				Description = description,
 				LevelOfEffort = levelOfEffort

Core/Parsers/EventOccurrenceParser.cs

@@ -31,7 +31,7 @@ public class EventOccurrenceParser
 	public IDictionary<EventDefinition, List<EventOccurrence>> Parse()
     {
         var occurrences = new Dictionary<EventDefinition, List<EventOccurrence>>();
-        EventDefinition currentEventDefinition = null;
+        EventDefinition? currentEventDefinition = null;
 
 		var lines = File.ReadLines(_txtFile.FullName);
         foreach (var line in lines)