From 42bd130a13c63b6565b5168df32a02e6f64ad082 Mon Sep 17 00:00:00 2001
From: Joe Glombek <joe.glombek@bumpdigital.co.uk>
Date: Tue, 8 Oct 2024 16:37:53 +0100
Subject: [PATCH 1/2] Add a Cogworks.Meganav to Our.Umbraco.Meganav migrator

---
 .../Community/Meganav/MeganavToMeganavMigrator.cs        | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs

diff --git a/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs b/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs
new file mode 100644
index 00000000..991c1243
--- /dev/null
+++ b/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs
@@ -0,0 +1,9 @@
+namespace uSync.Migrations.Migrators.Community.Meganav;
+
+[SyncMigrator("Cogworks.Meganav")]
+[SyncDefaultMigrator]
+public class MeganavToMeganavMigrator : SyncPropertyMigratorBase
+{
+    public override string GetEditorAlias(SyncMigrationDataTypeProperty dataTypeProperty, SyncMigrationContext context)
+        => "Our.Umbraco.Meganav";
+}

From 8bff5a149bd335ba6626fb1734fb0c5ce924c3d7 Mon Sep 17 00:00:00 2001
From: Joe Glombek <joe.glombek@bumpdigital.co.uk>
Date: Wed, 23 Oct 2024 16:31:42 +0100
Subject: [PATCH 2/2] Correct Meganav migration

Meganav's auto-migrator doesn't kick in if using uSync Migrations!
---
 .../Meganav/MeganavToMeganavMigrator.cs       | 116 +++++++++++++++++-
 1 file changed, 114 insertions(+), 2 deletions(-)

diff --git a/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs b/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs
index 991c1243..e32817f1 100644
--- a/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs
+++ b/uSync.Migrations.Migrators/Community/Meganav/MeganavToMeganavMigrator.cs
@@ -1,9 +1,121 @@
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json.Serialization;
+using Umbraco.Cms.Core;
+using Umbraco.Extensions;
+using static Umbraco.Cms.Core.Models.Property;
+
 namespace uSync.Migrations.Migrators.Community.Meganav;
 
+/// <summary>
+/// Based on https://github.com/callumbwhyte/meganav/tree/v9/dev/src/Our.Umbraco.Meganav/Migrations
+/// </summary>
 [SyncMigrator("Cogworks.Meganav")]
+[SyncMigrator("Meganav")]
 [SyncDefaultMigrator]
 public class MeganavToMeganavMigrator : SyncPropertyMigratorBase
 {
-    public override string GetEditorAlias(SyncMigrationDataTypeProperty dataTypeProperty, SyncMigrationContext context)
-        => "Our.Umbraco.Meganav";
+	public override string GetEditorAlias(SyncMigrationDataTypeProperty dataTypeProperty, SyncMigrationContext context)
+		=> "Our.Umbraco.Meganav";
+
+	public override string? GetContentValue(SyncMigrationContentProperty contentProperty, SyncMigrationContext context)
+	{
+		var oldStringValue = base.GetContentValue(contentProperty, context);
+		var data = JToken.Parse(string.IsNullOrEmpty(oldStringValue) ? "{}" : oldStringValue);
+
+		var entities = ConvertToEntity(data, context);
+		var value = JsonConvert.SerializeObject(entities, new JsonSerializerSettings() {  });
+		
+		return value;
+	}
+
+	private IEnumerable<MeganavEntity> ConvertToEntity(JToken data, SyncMigrationContext context)
+	{
+		foreach (var item in data.Children())
+		{
+			var entity = new MeganavEntity
+			{
+				Title = item.Value<string>("title"),
+				Target = item.Value<string>("target"),
+				Visible = !item.Value<bool>("naviHide")
+			};
+
+
+			var id = item.Value<int>("id");
+
+			UdiParser.TryParse(item.Value<string>("udi"), out Udi udi);
+
+			if (id > 0 || udi != null)
+			{
+				if (udi is GuidUdi guidUdi)
+				{
+					// UDI is healthy
+
+					// UNDONE: the original source still obtains the object here but I think it's not needed.
+					// All I can see it'd do is check the node still exists, which is handled by the editor anyway.
+				}
+				else
+				{
+					// convert ID to key
+					guidUdi = new GuidUdi(UmbConstants.UdiEntityType.Document, context.GetKey(id));
+				}
+
+				entity.Udi = guidUdi;
+			}
+			else
+			{
+				entity.Url = item.Value<string>("url");
+			}
+
+			var children = item.Value<JArray>("children");
+
+			if (children != null)
+			{
+				entity.Children = ConvertToEntity(children, context);
+			}
+
+			var ignoreProperties = new[]
+			{
+				"id", "key", "udi", "name", "title", "description", "target", "url", "children", "icon", "published",
+				"naviHide", "culture"
+			};
+
+			var settings = item.ToObject<IDictionary<string, object>>();
+
+			settings.RemoveAll(x => ignoreProperties.InvariantContains(x.Key));
+
+			entity.Settings = settings;
+
+			yield return entity;
+		}
+	}
+
+	[JsonObject(NamingStrategyType = typeof(CamelCaseNamingStrategy))]
+	internal class MeganavEntity
+	{
+		[DataMember(Name = "title")]
+		public string Title { get; set; }
+
+		[DataMember(Name = "url")]
+		public string Url { get; set; }
+
+		[DataMember(Name = "target")]
+		public string Target { get; set; }
+
+		[DataMember(Name = "visible")]
+		public bool Visible { get; set; } = true;
+
+		[DataMember(Name = "udi")]
+		public GuidUdi Udi { get; set; }
+
+		[DataMember(Name = "itemTypeId")]
+		public Guid? ItemTypeId { get; set; }
+
+		[DataMember(Name = "settings")]
+		public IDictionary<string, object> Settings { get; set; }
+
+		[DataMember(Name = "children")]
+		public IEnumerable<MeganavEntity> Children { get; set; } = new List<MeganavEntity>();
+	}
 }