Allow setting server url in settings

Caps/CapsApp.swift

@@ -5,7 +5,7 @@ struct CapsApp: App {
 
     static let thumbnailImageSize: CGFloat = 60
 
-    let database = Database(server: URL(string: "https://christophhagen.de/caps")!)
+    let database = Database()
 
     var body: some Scene {
         WindowGroup {

Caps/Data/Database.swift

@@ -33,7 +33,16 @@ final class Database: ObservableObject {
     private let encoder = JSONEncoder()
     private let decoder = JSONDecoder()
 
-    let serverUrl: URL
+    @AppStorage("serverUrl")
+    var serverPath: String = "" {
+        didSet {
+            images.server = serverUrl
+        }
+    }
+
+    var serverUrl: URL? {
+        .init(string: serverPath)
+    }
 
     let folderUrl: URL
 
@@ -159,20 +168,20 @@ final class Database: ObservableObject {
         return _classifierClassesCache!
     }
 
-    init(server: URL, folder: URL = FileManager.default.documentDirectory) {
+    init(folder: URL = FileManager.default.documentDirectory) {
-        self.serverUrl = server
         self.folderUrl = folder
         self.caps = [:]
 
         let imageFolder = folder.appendingPathComponent("images")
         self.images = try! ImageCache(
             folder: imageFolder,
-            server: server,
+            server: nil,
             thumbnailSize: CapsApp.thumbnailImageSize)
         
         self.localClassifierVersion = storedLocalClassifierVersion
         self.serverClassifierVersion = storedServerClassifierVersion
 
+        images.server = serverUrl
         ensureFolderExistence(gridStorageFolder)
         loadCaps()
         updatePendingImageUploadCount(imageUploads: imageUploads)
@@ -200,20 +209,20 @@ final class Database: ObservableObject {
         folderUrl.appendingPathComponent("uploads")
     }
 
-    private var serverDbUrl: URL {
+    private var serverDbUrl: URL? {
-        serverUrl.appendingPathComponent("caps.json")
+        serverUrl?.appendingPathComponent("caps.json")
     }
 
-    private var serverClassifierUrl: URL {
+    private var serverClassifierUrl: URL? {
-        serverUrl.appendingPathComponent("classifier.mlmodel")
+        serverUrl?.appendingPathComponent("classifier.mlmodel")
     }
     
-    private var serverClassifierClassesUrl: URL {
+    private var serverClassifierClassesUrl: URL? {
-        serverUrl.appendingPathComponent("classifier.classes")
+        serverUrl?.appendingPathComponent("classifier.classes")
     }
 
-    private var serverClassifierVersionUrl: URL {
+    private var serverClassifierVersionUrl: URL? {
-        serverUrl.appendingPathComponent("version")
+        serverUrl?.appendingPathComponent("version")
     }
 
     private var gridStorageFolder: URL {
@@ -224,7 +233,7 @@ final class Database: ObservableObject {
         guard let path = caps[cap]?.mainImagePath else {
             return nil
         }
-        return serverUrl.appendingPathComponent(path)
+        return serverUrl?.appendingPathComponent(path)
     }
 
     // MARK: Disk storage
@@ -305,6 +314,10 @@ final class Database: ObservableObject {
 
     @discardableResult
     func downloadCaps() async -> Bool {
+        guard let serverDbUrl else {
+            log("No server url set to download cap data")
+            return false
+        }
         log("Downloading cap data from \(serverDbUrl)")
         let data: Data
         let response: URLResponse
@@ -357,6 +370,10 @@ final class Database: ObservableObject {
 
     @discardableResult
     func updateServerClassifierVersion() async -> Bool {
+        guard let serverClassifierVersionUrl else {
+            log("No server url to download classifier version")
+            return false
+        }
         let data: Data
         let response: URLResponse
         do {
@@ -385,6 +402,10 @@ final class Database: ObservableObject {
 
     @discardableResult
     func downloadClassifier() async -> Bool {
+        guard let serverClassifierUrl else {
+            log("No server url to download classifier")
+            return false
+        }
         log("Downloading classifier")
 
         let progress = ClassifierProgress()
@@ -428,6 +449,10 @@ final class Database: ObservableObject {
     
     @discardableResult
     func downloadClassifierClasses() async -> Bool {
+        guard let serverClassifierClassesUrl else {
+            log("No server url to download classifier classes")
+            return false
+        }
         log("Downloading classifier classes")
         let data: Data
         let response: URLResponse
@@ -612,6 +637,10 @@ final class Database: ObservableObject {
 
     @discardableResult
     private func upload(imageAt url: URL, for cap: Int) async -> Bool {
+        guard let serverUrl else {
+            log("No server url to upload image")
+            return false
+        }
         guard hasServerAuthentication else {
             return false
         }
@@ -619,10 +648,10 @@ final class Database: ObservableObject {
             log("No image data found for image \(url.lastPathComponent) (Cap \(cap))")
             return false
         }
-        let serverUrl = serverUrl
+        let serverImageUrl = serverUrl
             .appendingPathComponent("image")
             .appendingPathComponent("\(cap)")
-        var request = URLRequest(url: serverUrl)
+        var request = URLRequest(url: serverImageUrl)
         request.addValue(serverAuthenticationKey, forHTTPHeaderField: "key")
         request.httpMethod = "POST"
         do {
@@ -677,6 +706,10 @@ final class Database: ObservableObject {
 
     @discardableResult
     private func upload(cap: Cap) async -> Bool {
+        guard let serverUrl else {
+            log("No server url to upload cap")
+            return false
+        }
         guard hasServerAuthentication else {
             return false
         }
@@ -736,6 +769,10 @@ final class Database: ObservableObject {
     }
 
     func delete(image: CapImage) async -> Bool {
+        guard let serverUrl else {
+            log("No server url to delete image")
+            return false
+        }
         guard hasServerAuthentication else {
             log("No authorization to delete cap image")
             return false
@@ -784,6 +821,10 @@ final class Database: ObservableObject {
     }
 
     func delete(cap: Int) async -> Bool {
+        guard let serverUrl else {
+            log("No server url to delete cap")
+            return false
+        }
         guard hasServerAuthentication else {
             log("No authorization to delete cap")
             return false
@@ -1027,7 +1068,8 @@ extension Database.ClassifierProgress: URLSessionDownloadDelegate {
 extension Database {
 
     static var mock: Database {
-        let db = Database(server: URL(string: "https://christophhagen.de/caps")!)
+        let db = Database()
+        db.serverPath = "https://caps.christophhagen.de"
         db.caps = [
             Cap(id: 123, name: "My new cap"),
             Cap(id: 234, name: "My favorite cap"),
@@ -1041,7 +1083,8 @@ extension Database {
     }
 
     static var largeMock: Database {
-        let db = Database(server: URL(string: "https://christophhagen.de/caps")!)
+        let db = Database()
+        db.serverPath = "https://caps.christophhagen.de"
         db.caps = (1..<500)
             .map { Cap(id: $0, name: "Cap \($0)") }
             .reduce(into: [:]) { $0[$1.id] = $1 }

Caps/Data/ImageCache.swift

@@ -5,7 +5,7 @@ final class ImageCache: ObservableObject {
 
     let folder: URL
 
-    let server: URL
+    var server: URL?
 
     let thumbnailSize: CGFloat
 
@@ -22,7 +22,7 @@ final class ImageCache: ObservableObject {
     @Published
     private(set) var imageCount = 0
 
-    init(folder: URL, server: URL, thumbnailSize: CGFloat) throws {
+    init(folder: URL, server: URL?, thumbnailSize: CGFloat) throws {
         self.folder = folder
         self.server = server
         self.thumbnailSize = thumbnailSize * UIScreen.main.scale
@@ -37,8 +37,8 @@ final class ImageCache: ObservableObject {
         folder.appendingPathComponent(String(format: "%04d-%02d.jpg", image.cap, image.version))
     }
 
-    private func remoteImageUrl(_ image: CapImage) -> URL {
+    private func remoteImageUrl(_ image: CapImage) -> URL? {
-        server.appendingPathComponent(String(format: "images/%04d/%04d-%02d.jpg", image.cap, image.cap, image.version))
+        server?.appendingPathComponent(String(format: "images/%04d/%04d-%02d.jpg", image.cap, image.cap, image.version))
     }
     
     @discardableResult
@@ -134,7 +134,9 @@ final class ImageCache: ObservableObject {
     }
 
     private func loadRemoteImage(_ image: CapImage) async -> URL? {
-        let remoteURL = remoteImageUrl(image)
+        guard let remoteURL = remoteImageUrl(image) else {
+            return nil
+        }
         return await loadRemoteImage(at: remoteURL)
     }
 

Caps/Views/CapRowView.swift

@@ -14,10 +14,6 @@ struct CapRowView: View {
     @EnvironmentObject
     var database: Database
 
-    var imageUrl: URL {
-        database.serverUrl.appendingPathComponent(cap.mainImagePath)
-    }
-
     var body: some View {
         HStack(alignment: .center) {
             VStack(alignment: .leading, spacing: 0) {

Caps/Views/SettingsView.swift

@@ -18,6 +18,18 @@ struct SettingsView: View {
     var body: some View {
         NavigationView {
             VStack(alignment: .leading, spacing: 3) {
+                Text("Server")
+                    .font(.footnote)
+                    .textCase(.uppercase)
+                    .foregroundColor(.secondary)
+                    .padding(.top)
+                Group {
+                    FancyTextField(
+                        text: $database.serverPath,
+                        icon: .globe, 
+                        placeholder: "Server url")
+                    .keyboardType(.URL)
+                }.padding(.horizontal)
                 Text("Authentication")
                     .font(.footnote)
                     .textCase(.uppercase)
@@ -25,6 +37,7 @@ struct SettingsView: View {
                     .padding(.top)
                 Group {
                     FancyTextField(text: $serverAuthenticationKey, icon: .key, placeholder: "Server key")
+                        .keyboardType(.asciiCapable)
                 }.padding(.horizontal)
                 Text("Statistics")
                     .font(.footnote)