chore: handle profile errors properly and stop being lazy

Dalamud/Plugin/Internal/PluginManager.cs

@@ -789,9 +789,16 @@ internal partial class PluginManager : IDisposable, IServiceType
         // If it was in multiple profiles and is still, the user uninstalled it and chose to keep it in there,
         // or the user removed the plugin manually in which case we don't care
         if (reason == PluginLoadReason.Installer)
+        {
+            try
             {
                 // We don't need to apply, it doesn't matter
-            await this.profileManager.DefaultProfile.RemoveAsync(repoManifest.InternalName, false, false);
+                await this.profileManager.DefaultProfile.RemoveAsync(repoManifest.InternalName, false);
+            }
+            catch (ProfileOperationException)
+            {
+                // ignored
+            }
         }
         else
         {

Dalamud/Plugin/Internal/Profiles/Profile.cs

@@ -200,22 +200,17 @@ internal class Profile
     /// </summary>
     /// <param name="internalName">The internal name of the plugin.</param>
     /// <param name="apply">Whether or not the current state should immediately be applied.</param>
-    /// <param name="guardrails">
-    /// Throw if certain operations are invalid.
-    /// * Throw if the plugin is not in this profile.
-    /// * If this is the default profile, check if we are in any other, then throw if we aren't.
-    /// </param>
     /// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
-    public async Task RemoveAsync(string internalName, bool apply = true, bool guardrails = true)
+    public async Task RemoveAsync(string internalName, bool apply = true)
     {
         ProfileModelV1.ProfileModelV1Plugin entry;
         lock (this)
         {
             entry = this.modelV1.Plugins.FirstOrDefault(x => x.InternalName == internalName);
-            if (entry == null && guardrails)
+            if (entry == null)
-                throw new ArgumentException($"No plugin \"{internalName}\" in profile \"{this.Guid}\"");
+                throw new PluginNotFoundException(internalName);
 
-            if (!this.modelV1.Plugins.Remove(entry) && guardrails)
+            if (!this.modelV1.Plugins.Remove(entry))
                 throw new Exception("Couldn't remove plugin from model collection");
         }
 
@@ -226,9 +221,9 @@ internal class Profile
             {
                 await this.manager.DefaultProfile.AddOrUpdateAsync(internalName, this.IsEnabled && entry.IsEnabled, false);
             }
-            else if (guardrails)
+            else
             {
-                throw new Exception("Removed plugin from default profile, but wasn't in any other profile");
+                throw new PluginNotInDefaultProfileException(internalName);
             }
         }
 
@@ -241,3 +236,48 @@ internal class Profile
     /// <inheritdoc/>
     public override string ToString() => $"{this.Guid} ({this.Name})";
 }
+
+/// <summary>
+/// Exception indicating an issue during a profile operation.
+/// </summary>
+internal abstract class ProfileOperationException : Exception
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ProfileOperationException"/> class.
+    /// </summary>
+    /// <param name="message">Message to pass on.</param>
+    protected ProfileOperationException(string message)
+        : base(message)
+    {
+    }
+}
+
+/// <summary>
+/// Exception indicating that a plugin was not found in the default profile.
+/// </summary>
+internal sealed class PluginNotInDefaultProfileException : ProfileOperationException
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PluginNotInDefaultProfileException"/> class.
+    /// </summary>
+    /// <param name="internalName">The internal name of the plugin causing the error.</param>
+    public PluginNotInDefaultProfileException(string internalName)
+        : base($"The plugin '{internalName}' is not in the default profile, and cannot be removed")
+    {
+    }
+}
+
+/// <summary>
+/// Exception indicating that the plugin was not found.
+/// </summary>
+internal sealed class PluginNotFoundException : ProfileOperationException
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PluginNotFoundException"/> class.
+    /// </summary>
+    /// <param name="internalName">The internal name of the plugin causing the error.</param>
+    public PluginNotFoundException(string internalName)
+        : base($"The plugin '{internalName}' was not found in the profile")
+    {
+    }
+}