punish v6.8.18.0

Questionable/Questionable.Validation.Validators/BasicSequenceValidator.cs

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+using System.Collections.Generic;
+using System.Linq;
+using Questionable.Model;
+using Questionable.Model.Questing;
+
+namespace Questionable.Validation.Validators;
+
+internal sealed class BasicSequenceValidator : IQuestValidator
+{
+	public IEnumerable<ValidationIssue> Validate(Quest quest)
+	{
+		List<QuestSequence> sequences = quest.Root.QuestSequence;
+		QuestSequence foundStart = sequences.FirstOrDefault((QuestSequence x) => x.Sequence == 0);
+		if (foundStart == null)
+		{
+			yield return new ValidationIssue
+			{
+				ElementId = quest.Id,
+				Sequence = 0,
+				Step = null,
+				Type = EIssueType.MissingSequence0,
+				Severity = EIssueSeverity.Error,
+				Description = "Missing quest start"
+			};
+		}
+		else if (quest.Info is QuestInfo { CompletesInstantly: not false })
+		{
+			foreach (QuestSequence item in sequences)
+			{
+				if (item != foundStart)
+				{
+					yield return new ValidationIssue
+					{
+						ElementId = quest.Id,
+						Sequence = item.Sequence,
+						Step = null,
+						Type = EIssueType.InstantQuestWithMultipleSteps,
+						Severity = EIssueSeverity.Error,
+						Description = "Instant quest should not have any sequences after the start"
+					};
+				}
+			}
+		}
+		else
+		{
+			if (!(quest.Info is QuestInfo))
+			{
+				yield break;
+			}
+			int maxSequence = (from x in sequences
+				select x.Sequence into x
+				where x != byte.MaxValue
+				select x).Max();
+			int i;
+			for (i = 0; i < maxSequence; i++)
+			{
+				List<QuestSequence> foundSequences = sequences.Where((QuestSequence x) => x.Sequence == i).ToList();
+				ValidationIssue validationIssue = ValidateSequences(quest, i, foundSequences);
+				if (validationIssue != null)
+				{
+					yield return validationIssue;
+				}
+			}
+			List<QuestSequence> foundSequences2 = sequences.Where((QuestSequence x) => x.Sequence == byte.MaxValue).ToList();
+			ValidationIssue validationIssue2 = ValidateSequences(quest, 255, foundSequences2);
+			if (validationIssue2 != null)
+			{
+				yield return validationIssue2;
+			}
+		}
+	}
+
+	private static ValidationIssue? ValidateSequences(Quest quest, int sequenceNo, List<QuestSequence> foundSequences)
+	{
+		if (foundSequences.Count == 0)
+		{
+			return new ValidationIssue
+			{
+				ElementId = quest.Id,
+				Sequence = (byte)sequenceNo,
+				Step = null,
+				Type = EIssueType.MissingSequence,
+				Severity = EIssueSeverity.Error,
+				Description = "Missing sequence"
+			};
+		}
+		if (foundSequences.Count == 2)
+		{
+			return new ValidationIssue
+			{
+				ElementId = quest.Id,
+				Sequence = (byte)sequenceNo,
+				Step = null,
+				Type = EIssueType.DuplicateSequence,
+				Severity = EIssueSeverity.Error,
+				Description = "Duplicate sequence"
+			};
+		}
+		return null;
+	}
+}