chore: import upstream snapshot with attribution

dotnet/samples/03-workflows/Declarative/CustomerSupport/TicketingPlugin.cs

@@ -0,0 +1,85 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.ComponentModel;
+
+namespace Demo.Workflows.Declarative.CustomerSupport;
+
+internal sealed class TicketingPlugin
+{
+    private readonly Dictionary<string, TicketItem> _ticketStore = [];
+
+    [Description("Retrieve a ticket by identifier from Azure DevOps.")]
+    public TicketItem? GetTicket(string id)
+    {
+        Trace(nameof(GetTicket));
+
+        this._ticketStore.TryGetValue(id, out TicketItem? ticket);
+
+        return ticket;
+    }
+
+    [Description("Create a ticket in Azure DevOps and return its identifier.")]
+    public string CreateTicket(string subject, string description, string notes)
+    {
+        Trace(nameof(CreateTicket));
+
+        TicketItem ticket = new()
+        {
+            Subject = subject,
+            Description = description,
+            Notes = notes,
+            Id = Guid.NewGuid().ToString("N"),
+        };
+
+        this._ticketStore[ticket.Id] = ticket;
+
+        return ticket.Id;
+    }
+
+    [Description("Resolve an existing ticket in Azure DevOps given its identifier.")]
+    public void ResolveTicket(string id, string resolutionSummary)
+    {
+        Trace(nameof(ResolveTicket));
+
+        if (this._ticketStore.TryGetValue(id, out TicketItem? ticket))
+        {
+            ticket.Status = TicketStatus.Resolved;
+        }
+    }
+
+    [Description("Send an email notification to escalate ticket engagement.")]
+    public void SendNotification(string id, string email, string cc, string body)
+    {
+        Trace(nameof(SendNotification));
+    }
+
+    private static void Trace(string functionName)
+    {
+        Console.ForegroundColor = ConsoleColor.DarkMagenta;
+        try
+        {
+            Console.WriteLine($"\nFUNCTION: {functionName}");
+        }
+        finally
+        {
+            Console.ResetColor();
+        }
+    }
+
+    public enum TicketStatus
+    {
+        Open,
+        InProgress,
+        Resolved,
+        Closed,
+    }
+
+    public sealed class TicketItem
+    {
+        public TicketStatus Status { get; set; } = TicketStatus.Open;
+        public string Subject { get; init; } = string.Empty;
+        public string Id { get; init; } = string.Empty;
+        public string Description { get; init; } = string.Empty;
+        public string Notes { get; init; } = string.Empty;
+    }
+}