feat: add model for DocumentContent and DocumentSource

src/AnthropicClient/Models/DocumentContent.cs

@@ -0,0 +1,56 @@
+using System.Text.Json.Serialization;
+
+using AnthropicClient.Utils;
+
+namespace AnthropicClient.Models;
+
+/// <summary>
+/// Represents content from a document that is part of a message.
+/// </summary>
+public class DocumentContent : Content
+{
+  /// <summary>
+  /// Gets the source of the document.
+  /// </summary>
+  public DocumentSource Source { get; init; } = new();
+
+  [JsonConstructor]
+  internal DocumentContent()
+  {
+  }
+
+  private void Validate(string mediaType, string data)
+  {
+    ArgumentValidator.ThrowIfNull(mediaType, nameof(mediaType));
+    ArgumentValidator.ThrowIfNull(data, nameof(data));
+  }
+
+  /// <summary>
+  /// Initializes a new instance of the <see cref="DocumentContent"/> class.
+  /// </summary>
+  /// <param name="mediaType">The media type of the document.</param>
+  /// <param name="data">The data of the document.</param>
+  /// <exception cref="ArgumentNullException">Thrown when the media type or data is null.</exception>
+  /// <returns>A new instance of the <see cref="DocumentContent"/> class.</returns>
+  public DocumentContent(string mediaType, string data) : base(ContentType.Document)
+  {
+    Validate(mediaType, data);
+
+    Source = new(mediaType, data);
+  }
+
+  /// <summary>
+  /// Initializes a new instance of the <see cref="DocumentContent"/> class.
+  /// </summary>
+  /// <param name="mediaType">The media type of the document.</param>
+  /// <param name="data">The data of the document.</param>
+  /// <param name="cacheControl">The cache control to be used for the content.</param>
+  /// <returns>A new instance of the <see cref="DocumentContent"/> class.</returns>
+  /// <exception cref="ArgumentNullException">Thrown when the media type, data, or cache control is null.</exception>
+  public DocumentContent(string mediaType, string data, CacheControl cacheControl) : base(ContentType.Document, cacheControl)
+  {
+    Validate(mediaType, data);
+
+    Source = new(mediaType, data);
+  }
+}