From 6d25b9db69a61bc62fa39a756c6b4ae403d71f56 Mon Sep 17 00:00:00 2001
From: Anna Clemens <git@annaclemens.io>
Date: Wed, 29 Jul 2020 22:42:57 -0400
Subject: [PATCH] feat: add error window for bad configs

---
 HudSwap/Plugin.cs   |  9 +++++++--
 HudSwap/PluginUI.cs | 11 +++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/HudSwap/Plugin.cs b/HudSwap/Plugin.cs
index efdbec1..fa9880d 100644
--- a/HudSwap/Plugin.cs
+++ b/HudSwap/Plugin.cs
@@ -1,4 +1,5 @@
 using Dalamud.Plugin;
+using System;
 
 namespace HudSwap {
     public class HudSwapPlugin : IDalamudPlugin {
@@ -11,8 +12,12 @@ namespace HudSwap {
 
         public void Initialize(DalamudPluginInterface pluginInterface) {
             this.pi = pluginInterface;
-
-            this.config = this.pi.GetPluginConfig() as Configuration ?? new Configuration();
+            try {
+                this.config = this.pi.GetPluginConfig() as Configuration ?? new Configuration();
+            } catch (Exception) {
+                this.pi.UiBuilder.OnBuildUi += PluginUI.ConfigError;
+                return;
+            }
             this.config.Initialize(this.pi);
 
             this.ui = new PluginUI(this, this.pi);
diff --git a/HudSwap/PluginUI.cs b/HudSwap/PluginUI.cs
index 6b3adee..7b047b4 100644
--- a/HudSwap/PluginUI.cs
+++ b/HudSwap/PluginUI.cs
@@ -32,6 +32,17 @@ namespace HudSwap {
         private string importName = "";
         private Guid selectedLayout = Guid.Empty;
 
+        private static bool configErrorOpen = true;
+        public static void ConfigError() {
+            if (ImGui.Begin("HudSwap error", ref configErrorOpen)) {
+                ImGui.Text("Could not load HudSwap configuration.");
+                ImGui.Spacing();
+                ImGui.Text("If you are updating from a previous version, please\ndelete your configuration file and restart the game.");
+
+                ImGui.End();
+            }
+        }
+
         public void DrawSettings() {
             if (!this.SettingsVisible) {
                 return;