Update README for device managedBy comparison focus

README.md

@@ -1,67 +1,80 @@
 # Disco ICT - AD Compare Plugin
 
-A plugin for [Disco ICT](https://github.com/garysharp/Disco) that compares Active Directory user details against Disco's stored records to identify mismatches.
+A plugin for [Disco ICT](https://github.com/garysharp/Disco) that compares the **Managed By** field on Active Directory computer objects against the **Assigned User** in Disco, and reports mismatches.
 
 ## What It Does
 
-This plugin provides:
+For every active device in Disco that has a domain computer account, this plugin:
 
-- **Full Comparison** — Iterates all Disco users and looks them up in AD, comparing core fields
-- **Mismatch Detection** — Identifies differences in Display Name, Surname, Given Name, Email, and Phone Number
-- **AD Status Checks** — Flags users not found in AD or with disabled AD accounts
-- **Web Dashboard** — In-app UI with filtering, searching, and summary stats
-- **CSV Export** — Download comparison results for reporting
-- **Detail Provider** — Stores comparison metadata as UserDetails for other plugins to consume
-- **Photo Sync** — Pulls `thumbnailPhoto` from AD for user photos
+1. Looks up the computer in AD and reads the `managedBy` attribute
+2. Resolves the `managedBy` Distinguished Name back to a `DOMAIN\username`
+3. Compares that against Disco's `AssignedUserId` for the device
+4. Reports mismatches with clear reasons
 
-## Fields Compared
+### Mismatch Categories
 
-| Disco Field     | AD Attribute       |
-|-----------------|--------------------|
-| DisplayName     | displayName        |
-| Surname         | sn                 |
-| GivenName       | givenName          |
-| EmailAddress    | mail               |
-| PhoneNumber     | telephoneNumber    |
+- **Different users** — Disco has one user assigned, AD `managedBy` points to someone else
+- **Assigned in Disco but AD empty** — Device is assigned in Disco but `managedBy` is blank in AD
+- **Not assigned in Disco but AD set** — No Disco assignment but `managedBy` is populated
+- **Computer not found in AD** — The device's domain ID doesn't resolve to an AD computer object
+
+## Web Dashboard
+
+The plugin provides an in-app dashboard accessible via the Disco plugin web handler:
+
+- Summary stats with colour-coded counts
+- Filterable results table (mismatches only by default)
+- Text search across serial numbers, computer names, and user IDs
+- CSV export of all mismatches
 
 ## Project Structure
 
 ```
-Disco.Plugins.ADCompare/
 ├── ADComparePlugin.cs                              # Main plugin class
+├── ConfigurationHandler/
+│   └── ADCompareConfigurationHandler.cs            # Required config handler + Razor view
 ├── Features/
-│   ├── ADCompareDetailsProvider.cs     # DetailsProviderFeature implementation
-│   └── ADCompareService.cs            # Core comparison logic
+│   └── DeviceCompareService.cs                     # Core comparison logic
 ├── Models/
-│   └── UserComparisonResult.cs        # Comparison result models
+│   └── DeviceComparisonResult.cs                   # Result models
 ├── WebHandler/
-│   └── ADCompareWebHandler.cs         # Web UI and API endpoints
+│   └── ADCompareWebHandler.cs                      # Dashboard, JSON API, CSV export
 ├── Properties/
 │   └── AssemblyInfo.cs
+├── Build-Plugin.ps1                                # Build + package script
 ├── Disco.Plugins.ADCompare.csproj
 └── README.md
 ```
 
-## Web Handler Endpoints
+## Building & Packaging
 
-| Action         | Description                                     |
-|----------------|-------------------------------------------------|
-| `Index`        | Dashboard page with comparison UI               |
-| `Compare`      | Runs full comparison, returns JSON               |
-| `CompareUser`  | Compare single user (`?userId=DOMAIN\username`) |
-| `Export`        | Download results as CSV                         |
+### Prerequisites
 
-## Building
+- Windows machine with Visual Studio or MSBuild
+- The Disco ICT solution cloned and built
 
-This plugin needs to reference the Disco ICT assemblies (`Disco.Models.dll`, `Disco.Data.dll`, `Disco.Services.dll`). Adjust the HintPaths in the `.csproj` to point at your local Disco build output, or add as ProjectReferences if building within the Disco solution.
+### Steps
 
-## Installation
+1. Clone this repo alongside (or inside) the Disco solution directory
+2. Build the Disco solution first (so assemblies are available)
+3. Run the build script:
 
-1. Build the project to produce `Disco.Plugins.ADCompare.dll`
-2. Place the DLL in the Disco plugins directory
-3. Restart Disco ICT
-4. Navigate to the plugin configuration in Disco's admin panel
-5. Click "Run Full Comparison" to see results
+```powershell
+.\Build-Plugin.ps1 -DiscoSolutionPath "C:\Path\To\Disco"
+```
+
+This will:
+- Compile the plugin against Disco's assemblies
+- Generate a `manifest.json` (using Disco's ManifestGenerator if available, or manually)
+- Package everything into a `.discoPlugin` file (which is just a zip)
+
+### Installing
+
+1. In Disco ICT, go to **Configuration > Plugins**
+2. Click **Install Plugin**
+3. Upload the `.discoPlugin` file
+4. Restart Disco
+5. Navigate to the plugin dashboard to run comparisons
 
 ## Requirements