Add support for Piped accounts and subscriptions

Shared/Favorites/FavoriteItemView.swift

@@ -52,7 +52,7 @@ struct FavoriteItemView: View {
                 .opacity(dragging?.id == item.id ? 0.5 : 1)
                 .onAppear {
                     resource?.addObserver(store)
-                    resource?.loadIfNeeded()
+                    resource?.load()
                 }
                 #if !os(tvOS)
                 .onDrag {

Shared/Navigation/AccountsMenuView.swift

@@ -15,7 +15,7 @@ struct AccountsMenuView: View {
                 }
             }
         } label: {
-            Label(model.current?.name ?? "Select Account", systemImage: "person.crop.circle")
+            Label(model.current?.description ?? "Select Account", systemImage: "person.crop.circle")
                 .labelStyle(.titleAndIcon)
         }
         .disabled(instances.isEmpty)

Shared/Navigation/AppSidebarPlaylists.swift

@@ -30,9 +30,6 @@ struct AppSidebarPlaylists: View {
             newPlaylistButton
                 .padding(.top, 8)
         }
-        .onAppear {
-            playlists.load()
-        }
     }
 
     var newPlaylistButton: some View {

Shared/Navigation/AppSidebarSubscriptions.swift

@@ -22,8 +22,5 @@ struct AppSidebarSubscriptions: View {
                 .id("channel\(channel.id)")
             }
         }
-        .onAppear {
-            subscriptions.load()
-        }
     }
 }

Shared/Navigation/Sidebar.swift

@@ -3,6 +3,8 @@ import SwiftUI
 struct Sidebar: View {
     @EnvironmentObject<AccountsModel> private var accounts
     @EnvironmentObject<NavigationModel> private var navigation
+    @EnvironmentObject<PlaylistsModel> private var playlists
+    @EnvironmentObject<SubscriptionsModel> private var subscriptions
 
     var body: some View {
         ScrollViewReader { scrollView in
@@ -13,12 +15,25 @@ struct Sidebar: View {
                     AppSidebarRecents()
                         .id("recentlyOpened")
 
-                    if accounts.signedIn {
-                        AppSidebarSubscriptions()
-                        AppSidebarPlaylists()
+                    if accounts.api.signedIn {
+                        if accounts.app.supportsSubscriptions {
+                            AppSidebarSubscriptions()
+                        }
+
+                        if accounts.app.supportsUserPlaylists {
+                            AppSidebarPlaylists()
+                        }
                     }
                 }
             }
+            .onAppear {
+                subscriptions.load()
+                playlists.load()
+            }
+            .onChange(of: accounts.signedIn) { _ in
+                subscriptions.load(force: true)
+                playlists.load(force: true)
+            }
             .onChange(of: navigation.sidebarSectionChanged) { _ in
                 scrollScrollViewToItem(scrollView: scrollView, for: navigation.tabSelection)
             }

Shared/Settings/AccountForm.swift

@@ -6,11 +6,13 @@ struct AccountForm: View {
     var selectedAccount: Binding<Account?>?
 
     @State private var name = ""
-    @State private var sid = ""
+    @State private var username = ""
+    @State private var password = ""
 
     @State private var isValid = false
     @State private var isValidated = false
     @State private var isValidating = false
+    @State private var validationError: String?
     @State private var validationDebounce = Debounce()
 
     @FocusState private var focused: Bool
@@ -67,21 +69,42 @@ struct AccountForm: View {
             #endif
         }
         .onAppear(perform: initializeForm)
-        .onChange(of: sid) { _ in validate() }
+        .onChange(of: username) { _ in validate() }
+        .onChange(of: password) { _ in validate() }
     }
 
     var formFields: some View {
         Group {
-            TextField("Name", text: $name, prompt: Text("Account Name (optional)"))
-                .focused($focused)
+            if !instance.app.accountsUsePassword {
+                TextField("Name", text: $name, prompt: Text("Account Name (optional)"))
+                    .focused($focused)
+            }
 
-            TextField("SID", text: $sid, prompt: Text("Invidious SID Cookie"))
+            TextField("Username", text: $username, prompt: usernamePrompt)
+
+            if instance.app.accountsUsePassword {
+                SecureField("Password", text: $password, prompt: Text("Password"))
+            }
+        }
+    }
+
+    var usernamePrompt: Text {
+        switch instance.app {
+        case .invidious:
+            return Text("SID Cookie")
+        default:
+            return Text("Username")
         }
     }
 
     var footer: some View {
         HStack {
-            AccountValidationStatus(isValid: $isValid, isValidated: $isValidated, isValidating: $isValidating, error: .constant(nil))
+            AccountValidationStatus(
+                isValid: $isValid,
+                isValidated: $isValidated,
+                isValidating: $isValidating,
+                error: $validationError
+            )
 
             Spacer()
 
@@ -106,7 +129,9 @@ struct AccountForm: View {
         isValid = false
         validationDebounce.invalidate()
 
-        guard !sid.isEmpty else {
+        let passwordIsValid = instance.app.accountsUsePassword ? !password.isEmpty : true
+
+        guard !username.isEmpty, passwordIsValid else {
             validator.reset()
             return
         }
@@ -114,7 +139,7 @@ struct AccountForm: View {
         isValidating = true
 
         validationDebounce.debouncing(1) {
-            validator.validateInvidiousAccount()
+            validator.validateAccount()
         }
     }
 
@@ -123,7 +148,7 @@ struct AccountForm: View {
             return
         }
 
-        let account = AccountsModel.add(instance: instance, name: name, sid: sid)
+        let account = AccountsModel.add(instance: instance, name: name, username: username, password: password)
         selectedAccount?.wrappedValue = account
 
         dismiss()
@@ -133,11 +158,12 @@ struct AccountForm: View {
         AccountValidator(
             app: .constant(instance.app),
             url: instance.apiURL,
-            account: Account(instanceID: instance.id, url: instance.apiURL, sid: sid),
-            id: $sid,
+            account: Account(instanceID: instance.id, url: instance.apiURL, username: username, password: password),
+            id: $username,
             isValid: $isValid,
             isValidated: $isValidated,
-            isValidating: $isValidating
+            isValidating: $isValidating,
+            error: $validationError
         )
     }
 }

Shared/Settings/AccountValidationStatus.swift

@@ -17,8 +17,8 @@ struct AccountValidationStatus: View {
 
             VStack(alignment: .leading) {
                 Text(isValid ? "Connected successfully" : "Connection failed")
-                if !isValid && !error.isNil {
-                    Text(error!)
+                if let error = error, !isValid {
+                    Text(error)
                         .font(.caption2)
                         .foregroundColor(.secondary)
                         .truncationMode(.tail)

Shared/Settings/SettingsView.swift

@@ -52,7 +52,7 @@ struct SettingsView: View {
                 .tag(Tabs.services)
             }
             .padding(20)
-            .frame(width: 400, height: 310)
+            .frame(width: 400, height: 380)
         #else
             NavigationView {
                 List {

Shared/Views/SubscriptionsView.swift

@@ -39,8 +39,13 @@ struct SubscriptionsView: View {
     fileprivate func loadResources(force: Bool = false) {
         feed?.addObserver(store)
 
-        if let request = force ? accounts.api.home?.load() : accounts.api.home?.loadIfNeeded() {
-            request.onSuccess { _ in
+        if accounts.app == .invidious {
+            // Invidious for some reason won't refresh feed until homepage is loaded
+            if let request = force ? accounts.api.home?.load() : accounts.api.home?.loadIfNeeded() {
+                request.onSuccess { _ in
+                    loadFeed(force: force)
+                }
+            } else {
                 loadFeed(force: force)
             }
         } else {