Create SyncResultRenderable, SyncStrategy, and SyncResultRenderer

Sources/AppStoreConnectCLI/Readers and Renderers/Renderers.swift

@@ -113,3 +113,42 @@ extension ResultRenderable where Self: TableInfoProvider {
         return table.render()
     }
 }
+
+protocol SyncResultRenderable {
+    var syncResultText: String { get }
+}
+
+enum SyncStrategy<T: SyncResultRenderable> {
+    case delete(T)
+    case create(T)
+    case update(T)
+}
+
+extension Renderers {
+
+    struct SyncResultRenderer<T: SyncResultRenderable> {
+
+        func render(_ strategy: [SyncStrategy<T>], isDryRun: Bool) {
+            strategy.forEach { renderResultText($0, isDryRun) }
+        }
+
+        func render(_ strategy: SyncStrategy<T>, isDryRun: Bool) {
+            renderResultText(strategy, isDryRun)
+        }
+
+        private func renderResultText(_ strategy: SyncStrategy<T>, _ isDryRun: Bool) {
+            let resultText: String
+            switch strategy {
+            case .create(let input):
+                resultText = "➕ \(input.syncResultText)"
+            case .delete(let input):
+                resultText = "➖ \(input.syncResultText)"
+            case .update(let input):
+                resultText = "⬆️  \(input.syncResultText)"
+            }
+
+            print("\(isDryRun ? "" : "✅") \(resultText)")
+        }
+    }
+
+}