namespace PRecAnnot.Abstractions;

public sealed record RuntimeDiagnostic
{
    public required string Code { get; init; }
    public required string Message { get; init; }
    public string Severity { get; init; } = "Warning";
}

public enum OrthoDetectionStatus { Confirmed, NotOrtho, Ambiguous, Unsupported, Failed }
public enum PlantProjectDetectionStatus { NotFound, FoundWithName, FoundWithoutDisplayName, Ambiguous, Failed }

public sealed record OrthoDetectionResult
{
    public required OrthoDetectionStatus Status { get; init; }
    public required IReadOnlyList<string> Evidence { get; init; }
    public required IReadOnlyList<RuntimeDiagnostic> Diagnostics { get; init; }
}

public readonly record struct Point2Dto(double X, double Y);
public readonly record struct Point3Dto(double X, double Y, double Z);
public readonly record struct Vector2Dto(double X, double Y);
public sealed record Bounds2Dto(Point2Dto Minimum, Point2Dto Maximum);
public sealed record Bounds3Dto(Point3Dto Minimum, Point3Dto Maximum);
public enum ExtentsIntersectionType { DoNotIntersect, Intersect, ExtentsMatch, FirstExtentsInsideSecondExtents, SecondExtentsInsideFirstExtents }

public sealed record LineNumberAnnotationSettings
{
    public required string NullOrEmpty { get; init; }
    public required IReadOnlyList<LineNumberAnnotationDefinition> Annotations { get; init; }
}

public sealed record LineNumberAnnotationDefinition
{
    public required string Nickname { get; init; }
    public IReadOnlyDictionary<string, string> Variables { get; init; } = new Dictionary<string, string>();
    public required IReadOnlyList<LineNumberAnnotationTag> Tags { get; init; }
}

public sealed record LineNumberAnnotationTag
{
    public required string Field { get; init; }
    public string Divider { get; init; } = string.Empty;
    public bool SaveWhenEmpty { get; init; } = true;
    public string IgnoreValue { get; init; } = string.Empty;
    public string ProcessingXml { get; init; } = string.Empty;
}

public sealed record LineNumberFormattingResult(bool Success, string Text, string? ErrorCode = null);
public interface ILineNumberAnnotationFormatter
{
    LineNumberFormattingResult Format(LineNumberAnnotationDefinition definition, IReadOnlyDictionary<string, string?> fields);
}

public sealed record DataLinksPropertyReadResult(bool Success, IReadOnlyDictionary<string, string?> Properties, string? FailureCode = null);
public interface IDataLinksPropertyReader { DataLinksPropertyReadResult ReadProperties(long rowId); }
public sealed record LineNumberFieldResolution(bool Success, IReadOnlyDictionary<string, string?> Values, string? FailureCode = null);
public sealed record LineNumberCandidate(string StableId, long RowId, AnnotationPoint Position, double Rotation, string Layer, string TextStyle, IReadOnlyDictionary<string, string?> Properties);
public sealed record ExistingLineNumberAnnotation(string StableId, string SourceStableId, string Text);
public sealed record LineNumberCommandOperation(string StableId, AnnotationOperationKind Kind, string? Text, AnnotationPoint Position, double Rotation, string Layer, string TextStyle, IReadOnlyList<string> Reasons);
public sealed record LineNumberCommandPlan(IReadOnlyList<LineNumberCommandOperation> Operations);
public sealed record LineNumberApplyPreflight(string StableId, int MarkerNumber, string Text, AnnotationPoint Position, double Rotation, string Layer, string TextStyle);
public sealed record LineNumberApplyResult(int Created, int Updated, int Unchanged);
public sealed record LineNumberListApplyPreflight(string StableId, AnnotationPoint Position, double Rotation, IReadOnlyList<LineNumberApplyPreflight> Rows);
public sealed record LineNumberPreviewResult(bool Success, LineNumberCommandPlan? Plan, IReadOnlyList<LineNumberApplyPreflight> Apply, string? FailureCode = null);
public sealed record LineNumberCandidateReadResult(bool Success, LineNumberCandidate? Candidate, string? FailureCode = null);
public sealed record ElevationCandidate(string StableId, double ModelElevation, double DatumOffset, AnnotationPoint Position, double Rotation, string Layer, string TextStyle);
public sealed record ExistingElevationAnnotation(string StableId, string SourceStableId, string Text, AnnotationPoint Position);
public sealed record ElevationAnnotationOperation(string StableId, AnnotationOperationKind Kind, string? Text, AnnotationPoint Position, double Rotation, string Layer, string TextStyle, IReadOnlyList<string> Reasons);
public sealed record ElevationAnnotationPlan(IReadOnlyList<ElevationAnnotationOperation> Operations);
public sealed record LineConnectionCandidate(string StableId, string LineNumber, Point3Dto FirstEndpoint, Point3Dto SecondEndpoint, Bounds3Dto Bounds, AnnotationPoint Position, double Rotation);
public sealed record LineConnectionGroup(string LineNumber, IReadOnlyList<LineConnectionCandidate> Members, AnnotationPoint Placement, double Rotation);
public sealed record LineNumberOwnedRow(string SourceStableId, int MarkerNumber, string Text, AnnotationPoint MarkerAttributePosition);
public sealed record LineNumberRowMutation(string SourceStableId, int PreviousMarkerNumber, int MarkerNumber, string Text, AnnotationPoint? MarkerAttributePosition);
public sealed record LineNumberTextAsset(string Layer, string TextStyle, double Size, string TextValue, Point2Dto Position);
public sealed record LineNumberLineAsset(string Layer, Point2Dto Start, Point2Dto End);
public sealed record LineNumberMarkerAsset(string Layer, double MaskScaleFactor, IReadOnlyList<LineNumberTextAsset> Texts, IReadOnlyList<LineNumberLineAsset> Lines);
public sealed record LineNumberListAsset(string Layer, double MaskScaleFactor, double LineHeight, double LineSpacingDistance, LineNumberTextAsset MarkerText, LineNumberTextAsset LineNumberText, LineNumberLineAsset Line);
public sealed record AnnotateLineNumbersAssets(LineNumberMarkerAsset Marker, LineNumberListAsset List);

public sealed record GeometrySnapshot
{
    public Point3Dto? WorldPosition { get; init; }
    public Point2Dto? PaperPosition { get; init; }
    public Bounds2Dto? ProjectedBounds { get; init; }
    public double? Rotation { get; init; }
    public double? Elevation { get; init; }
}

public sealed record OrthoViewportInfo
{
    public required string Id { get; init; }
    public required string DisplayName { get; init; }
    public double CenterX { get; init; }
    public double CenterY { get; init; }
    public double Width { get; init; }
    public double Height { get; init; }
    public double Scale { get; init; }
    public double TwistAngle { get; init; }
    public bool IsOn { get; init; }
    public bool IsLocked { get; init; }
    public string? SourceDrawingName { get; init; }
    public string? ViewName { get; init; }
}

public sealed record PlantObjectSnapshot
{
    public required string SnapshotId { get; init; }
    public required string ObjectClass { get; init; }
    public string? Tag { get; init; }
    public string? LineNumber { get; init; }
    public string? SupportNumber { get; init; }
    public string? EquipmentNumber { get; init; }
    public required GeometrySnapshot Geometry { get; init; }
    public IReadOnlyDictionary<string, string?> Properties { get; init; } = new Dictionary<string, string?>();
    public IReadOnlyList<string> Diagnostics { get; init; } = Array.Empty<string>();
    public ViewMembershipStatus MembershipStatus { get; init; } = ViewMembershipStatus.NotResolved;
    public IReadOnlyList<string> MembershipEvidenceCodes { get; init; } = Array.Empty<string>();
}

public enum ViewMembershipStatus { NotResolved, Resolved, PartiallyResolved, ObjectOutsideView, Unsupported, Failed }

public sealed record SourceObjectViewportMembership
{
    public required string SourceObjectStableKey { get; init; }
    public required string ViewStableKey { get; init; }
    public required ViewMembershipStatus Status { get; init; }
    public IReadOnlyList<string> EvidenceCodes { get; init; } = Array.Empty<string>();
    public string? ReasonCode { get; init; }
}

public sealed record PlantRuntimeContext
{
    public bool HasActiveDocument { get; init; }
    public bool HasPlantProject { get; init; }
    public bool IsOrthoDrawing { get; init; }
    public string? DrawingName { get; init; }
    public string? ProjectDisplayName { get; init; }
    public PlantProjectDetectionStatus ProjectDetectionStatus { get; init; } = PlantProjectDetectionStatus.NotFound;
    public IReadOnlyList<OrthoViewportInfo> Viewports { get; init; } = Array.Empty<OrthoViewportInfo>();
    public IReadOnlyList<RuntimeDiagnostic> Diagnostics { get; init; } = Array.Empty<RuntimeDiagnostic>();
    public OrthoDetectionResult Detection { get; init; } = new() { Status = OrthoDetectionStatus.Unsupported, Evidence = Array.Empty<string>(), Diagnostics = Array.Empty<RuntimeDiagnostic>() };
}

public interface IPlantRuntimeContextReader { PlantRuntimeContext ReadCurrentContext(); }
public interface IOrthoViewportReader { IReadOnlyList<OrthoViewportInfo> ReadViewports(CancellationToken cancellationToken); }

public enum SourceDrawingResolutionStatus { Resolved, NotReferenced, Ambiguous, MissingFromProject, Unsupported, Failed }

public sealed record OrthoSourceDrawingReference
{
    public required string StableId { get; init; }
    public required string DisplayName { get; init; }
    public string? ProjectRelativePath { get; init; }
    public long? ProjectDrawingRowId { get; init; }
    public required SourceDrawingResolutionStatus Status { get; init; }
    public IReadOnlyList<string> EvidenceCodes { get; init; } = Array.Empty<string>();
}

public sealed record SourcePlantObjectSnapshot
{
    public required string StableObjectKey { get; init; }
    public required string ClassName { get; init; }
    public string? SourceDrawingStableId { get; init; }
    public string? LineGroupStableKey { get; init; }
    public IReadOnlyDictionary<string, string?> Properties { get; init; } = new Dictionary<string, string?>();
}

public sealed record SourceDrawingReadResult
{
    public required OrthoSourceDrawingReference Source { get; init; }
    public IReadOnlyList<SourcePlantObjectSnapshot> Objects { get; init; } = Array.Empty<SourcePlantObjectSnapshot>();
    public IReadOnlyList<RuntimeDiagnostic> Diagnostics { get; init; } = Array.Empty<RuntimeDiagnostic>();
}

public interface IOrthoSourceDrawingResolver
{
    IReadOnlyList<OrthoSourceDrawingReference> Resolve(OrthoDrawingSnapshot drawing);
}

public sealed record OrthoDrawingSnapshot
{
    public required string StableId { get; init; }
    public IReadOnlyList<OrthoViewSourceSnapshot> Views { get; init; } = Array.Empty<OrthoViewSourceSnapshot>();
}

public sealed record OrthoViewSourceSnapshot
{
    public required string ViewStableId { get; init; }
    public IReadOnlyList<string> ReferencedDrawingPaths { get; init; } = Array.Empty<string>();
}

public interface ISourceDrawingDataLinksReader
{
    SourceDrawingReadResult Read(PlantProjectContext project, OrthoSourceDrawingReference source);
}

public sealed record PlantProjectContext
{
    public required string StableProjectId { get; init; }
    public string? ProjectDisplayName { get; init; }
}

public enum AnnotationOperationKind { Create, Update, Skip, Conflict, Unsupported }

public sealed record AnnotationOperationPlan
{
    public required string SourceSnapshotId { get; init; }
    public required AnnotationOperationKind Kind { get; init; }
    public string? AnnotationType { get; init; }
    public string? Text { get; init; }
    public Point2Dto? Position { get; init; }
    public double? Rotation { get; init; }
    public string? ExistingAnnotationId { get; init; }
    public required IReadOnlyList<string> Reasons { get; init; }
}

public sealed record AnnotationPlanSummary
{
    public int ObjectsExamined { get; init; }
    public int CreateCount { get; init; }
    public int UpdateCount { get; init; }
    public int SkipCount { get; init; }
    public int ConflictCount { get; init; }
    public int UnsupportedCount { get; init; }
    public int WarningCount { get; init; }
    public int ErrorCount { get; init; }
}

public sealed record AnnotationPlanningRequest
{
    public required string CommandName { get; init; }
    public required OrthoViewportInfo Viewport { get; init; }
    public IReadOnlyList<PlantObjectSnapshot> Objects { get; init; } = Array.Empty<PlantObjectSnapshot>();
    public IReadOnlyList<ExistingAnnotation> Existing { get; init; } = Array.Empty<ExistingAnnotation>();
    // Test-only limited Apply intent.  It is part of the canonical plan and is
    // deliberately explicit: the planner must never choose an arbitrary Pipe.
    public string? LimitedApplyTargetSnapshotId { get; init; }
    public string? LimitedApplyRuleId { get; init; }
}

public interface IAnnotationPlanBuilder { AnnotationPlan Build(AnnotationPlanningRequest request); }
public enum PRecAnnotExecutionMode { Smoke, DryRun, Apply }
public interface IRuntimeWriteGuard { void EnsureWriteAllowed(string operation); }

public sealed record CreatePipeAnnotationOperation
{
    public required string OperationId { get; init; }
    public required string SourceObjectStableKey { get; init; }
    public required string ViewStableKey { get; init; }
    public required string RuleId { get; init; }
    public required AnnotationPoint Placement { get; init; }
    public required string DuplicateKey { get; init; }
}

public sealed record FirstLimitedApplyPermit
{
    public required string FixtureMarker { get; init; }
    public required bool AllowApply { get; init; }
    public required string TargetSnapshotId { get; init; }
    public required string ExpectedPlanId { get; init; }
}

public sealed record FirstLimitedApplyPreflight
{
    public required string PlanId { get; init; }
    public required CreatePipeAnnotationOperation Operation { get; init; }
}

public sealed record OrthoViewportRef(string DrawingId, string ViewportId);

public sealed record PlantObjectData
{
    public required string ObjectId { get; init; }
    public required string ClassName { get; init; }
    public string? LineNumber { get; init; }
    public string? Tag { get; init; }
    public string? DisplayName { get; init; }
    public required AnnotationPoint Position { get; init; }
    public double Rotation { get; init; }
}

public readonly record struct AnnotationPoint(double X, double Y, double Z = 0);

public sealed record ExistingAnnotation(string StableKey, string? Text, AnnotationPoint Position);

public sealed record AnnotationRequest
{
    public required OrthoViewportRef Viewport { get; init; }
    public required IReadOnlyList<PlantObjectData> Objects { get; init; }
    public required IReadOnlyList<ExistingAnnotation> Existing { get; init; }
}

public sealed record AnnotationIntent
{
    public required string StableKey { get; init; }
    public required string Text { get; init; }
    public required AnnotationPoint Position { get; init; }
    public required double Rotation { get; init; }
    public required string ClassName { get; init; }
    public required string Layer { get; init; }
}

public sealed record AnnotationPlan
{
    public int PlanSchemaVersion { get; init; }
    public string PlanId { get; init; } = string.Empty;
    public string CommandName { get; init; } = string.Empty;
    public IReadOnlyList<AnnotationOperationPlan> Operations { get; init; } = Array.Empty<AnnotationOperationPlan>();
    public IReadOnlyList<RuntimeDiagnostic> Diagnostics { get; init; } = Array.Empty<RuntimeDiagnostic>();
    public AnnotationPlanSummary Summary { get; init; } = new();
    public required IReadOnlyList<AnnotationIntent> Create { get; init; }
    public required IReadOnlyList<AnnotationIntent> Update { get; init; }
    public required IReadOnlyList<string> Delete { get; init; }
    public required IReadOnlyList<string> SkipReasons { get; init; }
    public int ExaminedCount { get; init; }
    public bool IsDeterministic { get; init; } = true;
}

public interface IPlantProjectContext
{
    bool IsPlantProjectOpen { get; }
    string? ProjectName { get; }
}

public interface IOrthoDrawingContext
{
    bool IsOrthoDrawing { get; }
    IReadOnlyList<OrthoViewportRef> GetViewports();
}

public interface IPlantObjectReader
{
    IReadOnlyList<PlantObjectSnapshot> ReadObjects(OrthoViewportInfo viewport, CancellationToken cancellationToken);
}

public interface IAnnotationRepository
{
    IReadOnlyList<ExistingAnnotation> FindExisting(OrthoViewportRef viewport);
    AnnotationWriteResult Apply(AnnotationPlan plan, CancellationToken cancellationToken);
}

public sealed record AnnotationWriteResult(int Created, int Updated, int Deleted, int Skipped);

public interface IAnnotationRuleEngine
{
    AnnotationPlan BuildPlan(AnnotationRequest request);
}

public sealed record CommandUsageEvent
{
    public required string CommandName { get; init; }
    public required string ResultStatus { get; init; }
    public int ObjectsExamined { get; init; }
    public int AnnotationsCreated { get; init; }
    public int AnnotationsUpdated { get; init; }
    public int AnnotationsDeleted { get; init; }
    public int AnnotationsSkipped { get; init; }
    public int WarningCount { get; init; }
    public int ErrorCount { get; init; }
    public long DurationMilliseconds { get; init; }
    public DateTimeOffset TimestampUtc { get; init; } = DateTimeOffset.UtcNow;
}

public interface ICommandUsageSink
{
    void Record(CommandUsageEvent usageEvent);
}