1 files changed, 74 insertions, 0 deletions
diff --git a/Timeline/Models/Timeline.cs b/Timeline/Models/Timeline.cs
new file mode 100644
index 00000000..52f38e42
--- /dev/null
+++ b/Timeline/Models/Timeline.cs
@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+
+namespace TimelineApp.Models
+{
+    public enum TimelineVisibility
+    {
+        /// <summary>
+        /// All people including those without accounts.
+        /// </summary>
+        Public,
+        /// <summary>
+        /// Only people signed in.
+        /// </summary>
+        Register,
+        /// <summary>
+        /// Only member.
+        /// </summary>
+        Private
+    }
+
+    public static class TimelinePostContentTypes
+    {
+        public const string Text = "text";
+        public const string Image = "image";
+    }
+
+    public interface ITimelinePostContent
+    {
+        public string Type { get; }
+    }
+
+    public class TextTimelinePostContent : ITimelinePostContent
+    {
+        public TextTimelinePostContent(string text) { Text = text; }
+
+        public string Type { get; } = TimelinePostContentTypes.Text;
+        public string Text { get; set; }
+    }
+
+    public class ImageTimelinePostContent : ITimelinePostContent
+    {
+        public ImageTimelinePostContent(string dataTag) { DataTag = dataTag; }
+
+        public string Type { get; } = TimelinePostContentTypes.Image;
+        public string DataTag { get; set; }
+    }
+
+    public class TimelinePost
+    {
+        public long Id { get; set; }
+        public ITimelinePostContent Content { get; set; } = default!;
+        public DateTime Time { get; set; }
+        public User Author { get; set; } = default!;
+        public DateTime LastUpdated { get; set; } = default!;
+    }
+
+    public class Timeline
+    {
+        public string Name { get; set; } = default!;
+        public string Description { get; set; } = default!;
+        public User Owner { get; set; } = default!;
+        public TimelineVisibility Visibility { get; set; }
+#pragma warning disable CA2227 // Collection properties should be read only
+        public List<User> Members { get; set; } = default!;
+#pragma warning restore CA2227 // Collection properties should be read only
+    }
+
+    public class TimelineChangePropertyRequest
+    {
+        public string? Description { get; set; }
+        public TimelineVisibility? Visibility { get; set; }
+    }
+}