[Feat] #484 - downloadHandlers를 관리하는 manager 구현

SOPT-iOS/Projects/Features/BaseFeatureDependency/Sources/WebView/Download/WKDownloadManager.swift

@@ -0,0 +1,51 @@
+//
+//  WKDownloadManager.swift
+//  BaseFeatureDependency
+//
+//  Created by 장석우 on 1/24/25.
+//  Copyright © 2025 SOPT-iOS. All rights reserved.
+//
+
+import Foundation
+import UniformTypeIdentifiers
+import WebKit
+
+public final class WKDownloadManager {
+    private var downloadHandlers: [UTType: WKDownloadExecutable]
+    var webVC: SOPTWebViewControllable?
+
+    init(
+        downloadHandlers: [UTType : WKDownloadExecutable] = [:],
+        webVC: SOPTWebViewControllable? = nil
+    ) {
+        self.downloadHandlers = downloadHandlers
+        self.webVC = webVC
+    }
+
+    public func register<T: WKDownloadExecutable>(_ object: T) {
+        self.downloadHandlers[T.key] = object
+    }
+
+    func download(
+        _ download: WKDownload,
+        decideDestinationUsing response: URLResponse,
+        suggestedFilename: String
+    ) async -> URL? {
+        guard let mimeType = response.mimeType,
+              let utType = UTType(mimeType: mimeType)
+        else { return nil }
+
+        guard let handler = downloadHandlers.first(where: { utType.conforms(to: $0.key) })?.value
+        else { return nil }
+
+        return await handler.execute(download, response, suggestedFilename, webVC)
+    }
+
+    public static let `default`: WKDownloadManager = {
+        let manager = WKDownloadManager()
+        manager.register(WKImageDownloadHandler())
+        return manager
+    }()
+}
+
+