From 107fc89e86dde84e64ae9f40b06f21514490dc39 Mon Sep 17 00:00:00 2001
From: Alsey Coleman Miller <alseycmiller@gmail.com>
Date: Wed, 6 Nov 2024 21:52:20 -0500
Subject: [PATCH] #161 Add `DataConvertible` conformance to `BluetoothUUID`

---
 Sources/Bluetooth/BluetoothUUID.swift | 39 +++++++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/Sources/Bluetooth/BluetoothUUID.swift b/Sources/Bluetooth/BluetoothUUID.swift
index 2aec2d72d..63b7c1e9b 100644
--- a/Sources/Bluetooth/BluetoothUUID.swift
+++ b/Sources/Bluetooth/BluetoothUUID.swift
@@ -92,9 +92,9 @@ extension BluetoothUUID: RawRepresentable {
 
 // MARK: - Data
 
-public extension BluetoothUUID {
+extension BluetoothUUID: DataConvertible {
     
-    init?<Data: DataContainer>(data: Data) {
+    public init?<Data: DataContainer>(data: Data) {
     
         guard let length = Length(rawValue: data.count)
             else { return nil }
@@ -120,6 +120,41 @@ public extension BluetoothUUID {
             self = .bit128(value)
         }
     }
+    
+    public var dataLength: Int {
+        length.rawValue
+    }
+    
+    public func append<Data>(to data: inout Data) where Data : DataContainer {
+        switch self {
+        case let .bit16(value):
+            data += value
+        case let .bit32(value):
+            data += value
+        case let .bit128(value):
+            data += value
+        }
+    }
+}
+
+internal extension BluetoothUUID {
+    
+    /// Number of bytes to represent Bluetooth UUID.
+    enum Length: Int {
+        
+        case bit16 = 2
+        case bit32 = 4
+        case bit128 = 16
+    }
+    
+    private var length: Length {
+        
+        switch self {
+        case .bit16: return .bit16
+        case .bit32: return .bit32
+        case .bit128: return .bit128
+        }
+    }
 }
 
 // MARK: - Codable