Integrate simplified message handling

4 files changed, 83 insertions, 4 deletions

diff --git a/src/WixToolset.Extensibility/Services/IBindContext.cs b/src/WixToolset.Extensibility/Services/IBindContext.cs
index 6bed0ef6..ad1aa818 100644
--- a/src/WixToolset.Extensibility/Services/IBindContext.cs
+++ b/src/WixToolset.Extensibility/Services/IBindContext.cs
@@ -10,7 +10,7 @@ namespace WixToolset.Extensibility.Services
     {
         IServiceProvider ServiceProvider { get; }
 
-        Messaging Messaging { get; set; }
+        IMessaging Messaging { get; set; }
 
         IEnumerable<BindPath> BindPaths { get; set; }
 
diff --git a/src/WixToolset.Extensibility/Services/ICommandLineContext.cs b/src/WixToolset.Extensibility/Services/ICommandLineContext.cs
index 0e040d7f..27d4e6dd 100644
--- a/src/WixToolset.Extensibility/Services/ICommandLineContext.cs
+++ b/src/WixToolset.Extensibility/Services/ICommandLineContext.cs
@@ -3,13 +3,12 @@
 namespace WixToolset.Extensibility.Services
 {
     using System;
-    using WixToolset.Data;
 
     public interface ICommandLineContext
     {
         IServiceProvider ServiceProvider { get; }
 
-        Messaging Messaging { get; set; }
+        IMessaging Messaging { get; set; }
 
         IExtensionManager ExtensionManager { get; set; }
 
diff --git a/src/WixToolset.Extensibility/Services/ILinkContext.cs b/src/WixToolset.Extensibility/Services/ILinkContext.cs
index 25c7962f..e098a900 100644
--- a/src/WixToolset.Extensibility/Services/ILinkContext.cs
+++ b/src/WixToolset.Extensibility/Services/ILinkContext.cs
@@ -10,7 +10,7 @@ namespace WixToolset.Extensibility.Services
     {
         IServiceProvider ServiceProvider { get; }
 
-        Messaging Messaging { get; set; }
+        IMessaging Messaging { get; set; }
 
         IEnumerable<ILinkerExtension> Extensions { get; set; }
 
diff --git a/src/WixToolset.Extensibility/Services/IMessaging.cs b/src/WixToolset.Extensibility/Services/IMessaging.cs
new file mode 100644
index 00000000..901c7af4
--- /dev/null
+++ b/src/WixToolset.Extensibility/Services/IMessaging.cs
@@ -0,0 +1,80 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Extensibility.Services
+{
+    using WixToolset.Data;
+
+    /// <summary>
+    /// Interface for handling messages (error/warning/verbose).
+    /// </summary>
+    public interface IMessaging
+    {
+        /// <summary>
+        /// Indicates whether an error has been found.
+        /// </summary>
+        /// <value>A bool indicating whether an error has been found.</value>
+        bool EncounteredError { get; }
+
+        /// <summary>
+        /// Gets the last error code encountered during messaging.
+        /// </summary>
+        /// <value>The exit code for the process.</value>
+        int LastErrorNumber { get; }
+
+        /// <summary>
+        /// Gets or sets the option to show verbose messages.
+        /// </summary>
+        /// <value>The option to show verbose messages.</value>
+        bool ShowVerboseMessages { get; set; }
+
+        /// <summary>
+        /// Gets or sets the option to suppress all warning messages.
+        /// </summary>
+        /// <value>The option to suppress all warning messages.</value>
+        bool SuppressAllWarnings { get; set; }
+
+        /// <summary>
+        /// Gets and sets the option to treat warnings as errors.
+        /// </summary>
+        /// <value>The option to treat warnings as errors.</value>
+        bool WarningsAsError { get; set; }
+
+        /// <summary>
+        /// Sets the listener for messaging.
+        /// </summary>
+        /// <param name="listener"></param>
+        void SetListener(IMessageListener listener);
+
+        /// <summary>
+        /// Adds a warning message id to be elevated to an error message.
+        /// </summary>
+        /// <param name="warningNumber">Id of the message to elevate.</param>
+        void ElevateWarningMessage(int warningNumber);
+
+        /// <summary>
+        /// Adds a warning message id to be suppressed in message output.
+        /// </summary>
+        /// <param name="warningNumber">Id of the message to suppress.</param>
+        void SuppressWarningMessage(int warningNumber);
+
+        /// <summary>
+        /// Formats a message to standard message.
+        /// </summary>
+        /// <param name="message">Message to format.</param>
+        /// <returns>Formatted message</returns>
+        string FormatMessage(Message message);
+
+        /// <summary>
+        /// Sends a message with the given arguments.
+        /// </summary>
+        /// <param name="message">Message to write.</param>
+        void Write(Message message);
+
+        /// <summary>
+        /// Sends a message with the given arguments.
+        /// </summary>
+        /// <param name="message">Message to write.</param>
+        /// <param name="verbose">Indicates where to write a verbose message.</param>
+        void Write(string message, bool verbose = false);
+    }
+}