Restructure solution layout by module

src/Scanner/__Libraries/StellaOps.Scanner.Diff/ComponentDiffModels.cs

@@ -0,0 +1,109 @@
+using System;
+using System.Collections.Immutable;
+using System.Text.Json.Serialization;
+using StellaOps.Scanner.Core.Contracts;
+
+namespace StellaOps.Scanner.Diff;
+
+public enum ComponentChangeKind
+{
+    Added,
+    Removed,
+    VersionChanged,
+    MetadataChanged,
+}
+
+public sealed record ComponentDiffRequest
+{
+    public required ComponentGraph OldGraph { get; init; }
+
+    public required ComponentGraph NewGraph { get; init; }
+
+    public SbomView View { get; init; } = SbomView.Inventory;
+
+    public DateTimeOffset GeneratedAt { get; init; } = DateTimeOffset.UtcNow;
+
+    public string? OldImageDigest { get; init; }
+        = null;
+
+    public string? NewImageDigest { get; init; }
+        = null;
+}
+
+public sealed record ComponentChange
+{
+    [JsonPropertyName("kind")]
+    public ComponentChangeKind Kind { get; init; }
+
+    [JsonPropertyName("componentKey")]
+    public string ComponentKey { get; init; } = string.Empty;
+
+    [JsonPropertyName("introducingLayer")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? IntroducingLayer { get; init; }
+        = null;
+
+    [JsonPropertyName("removingLayer")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? RemovingLayer { get; init; }
+        = null;
+
+    [JsonPropertyName("oldComponent")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public AggregatedComponent? OldComponent { get; init; }
+        = null;
+
+    [JsonPropertyName("newComponent")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public AggregatedComponent? NewComponent { get; init; }
+        = null;
+}
+
+public sealed record LayerDiff
+{
+    [JsonPropertyName("layerDigest")]
+    public string LayerDigest { get; init; } = string.Empty;
+
+    [JsonPropertyName("changes")]
+    public ImmutableArray<ComponentChange> Changes { get; init; } = ImmutableArray<ComponentChange>.Empty;
+}
+
+public sealed record DiffSummary
+{
+    [JsonPropertyName("added")]
+    public int Added { get; init; }
+
+    [JsonPropertyName("removed")]
+    public int Removed { get; init; }
+
+    [JsonPropertyName("versionChanged")]
+    public int VersionChanged { get; init; }
+
+    [JsonPropertyName("metadataChanged")]
+    public int MetadataChanged { get; init; }
+}
+
+public sealed record ComponentDiffDocument
+{
+    [JsonPropertyName("generatedAt")]
+    public DateTimeOffset GeneratedAt { get; init; }
+
+    [JsonPropertyName("view")]
+    public SbomView View { get; init; }
+
+    [JsonPropertyName("oldImageDigest")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? OldImageDigest { get; init; }
+        = null;
+
+    [JsonPropertyName("newImageDigest")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? NewImageDigest { get; init; }
+        = null;
+
+    [JsonPropertyName("summary")]
+    public DiffSummary Summary { get; init; } = new();
+
+    [JsonPropertyName("layers")]
+    public ImmutableArray<LayerDiff> Layers { get; init; } = ImmutableArray<LayerDiff>.Empty;
+}