Merge remote-tracking branch 'upstream/main'

1 files changed, 326 insertions, 0 deletions

diff --git a/Hotline/macOS/News/NewsView.swift b/Hotline/macOS/News/NewsView.swift
new file mode 100644
index 0000000..00b6555
--- /dev/null
+++ b/Hotline/macOS/News/NewsView.swift
@@ -0,0 +1,326 @@
+import MarkdownUI
+import SplitView
+import SwiftUI
+
+struct NewsView: View {
+  @Environment(HotlineState.self) private var model: HotlineState
+  @Environment(\.openWindow) private var openWindow
+  @Environment(\.colorScheme) private var colorScheme
+
+  @State private var selection: NewsInfo?
+  @State private var articleText: String?
+  @State private var splitHidden: SideHolder = SideHolder(.bottom)
+  @State private var splitFraction = FractionHolder.usingUserDefaults(0.25, key: "News Split Fraction")
+  @State private var editorOpen: Bool = false
+  @State private var replyOpen: Bool = false
+  @State private var loading: Bool = false
+
+  var body: some View {
+    Group {
+      if model.serverVersion < 151 {
+        disabledNewsView
+      }
+      else if !model.newsLoaded {
+        loadingIndicator
+      }
+      else if model.news.isEmpty {
+        emptyNewsView
+      }
+      else {
+        NavigationStack {
+          VSplit(
+            top: {
+              newsBrowser
+            },
+            bottom: {
+              articleViewer
+            }
+          )
+          .fraction(splitFraction)
+          .constraints(minPFraction: 0.1, minSFraction: 0.3)
+          .hide(splitHidden)
+          .styling(
+            color: colorScheme == .dark ? .black : Splitter.defaultColor, inset: 0,
+            visibleThickness: 0.5, invisibleThickness: 5, hideSplitter: true
+          )
+          .frame(maxWidth: .infinity, maxHeight: .infinity)
+          .background(Color(nsColor: .textBackgroundColor))
+        }
+      }
+    }
+    .task {
+      if !model.newsLoaded {
+        loading = true
+        try? await model.getNewsList()
+        loading = false
+      }
+    }
+    .sheet(isPresented: $editorOpen) {
+    } content: {
+      if let selection = selection {
+        switch selection.type {
+        case .article, .category:
+          NewsEditorView(
+            editorTitle: selection.path.last ?? "New Post", isReply: false, path: selection.path,
+            parentID: 0)
+        default:
+          EmptyView()
+        }
+      } else {
+        EmptyView()
+      }
+    }
+    .sheet(isPresented: $replyOpen) {
+    } content: {
+      if let selection = selection, selection.type == .article {
+        NewsEditorView(
+          editorTitle: "Reply to \(selection.articleUsername ?? "Post")", isReply: true,
+          path: selection.path, parentID: UInt32(selection.articleID!),
+          title: selection.name.replyToString())
+      } else {
+        EmptyView()
+      }
+    }
+    .toolbar {
+      ToolbarItem {
+        Button {
+          if selection?.type == .category || selection?.type == .article {
+            editorOpen = true
+          }
+        } label: {
+          Image(systemName: "square.and.pencil")
+        }
+        .help("New post under current topic")
+        .disabled(selection?.type != .category && selection?.type != .article)
+      }
+      
+      ToolbarItem {
+        Button {
+          if selection?.type == .article {
+            replyOpen = true
+          }
+        } label: {
+          Image(systemName: "arrowshape.turn.up.left")
+        }
+        .help("Reply to selected post")
+        .disabled(selection?.type != .article)
+      }
+      
+      if #available(macOS 26.0, *) {
+        ToolbarSpacer(.fixed)
+      }
+      
+      ToolbarItem {
+        Button {
+//          if selection?.type == .category || selection?.type == .article {
+//            editorOpen = true
+//          }
+        } label: {
+          Image(systemName: "newspaper")
+        }
+        .help("Create a new topic")
+      }
+      
+      ToolbarItem {
+        Button {
+//          if selection?.type == .category || selection?.type == .article {
+//            editorOpen = true
+//          }
+        } label: {
+          Image(systemName: "tray")
+        }
+        .help("Create a new category")
+      }
+      
+      ToolbarItem {
+        Button {
+          loading = true
+          if let selectionPath = selection?.path {
+            Task {
+              try? await model.getNewsList(at: selectionPath)
+              loading = false
+            }
+          } else {
+            Task {
+              try? await model.getNewsList()
+              loading = false
+            }
+          }
+        } label: {
+          Image(systemName: "arrow.clockwise")
+        }
+        .help("Reload selected topic")
+        .disabled(loading)
+      }
+    }
+  }
+  
+  private var disabledNewsView: some View {
+    ContentUnavailableView {
+      Label("No News", systemImage: "newspaper")
+    } description: {
+      Text("This server has turned off newsgroups")
+    }
+  }
+  
+  private var emptyNewsView: some View {
+    ContentUnavailableView {
+      Label("No News", systemImage: "newspaper")
+    } description: {
+      Text("This server has no newsgroups")
+    }
+  }
+  
+  private var newsBrowser: some View {
+    List(model.news, id: \.self, selection: $selection) { newsItem in
+      NewsItemView(news: newsItem, depth: 0).tag(newsItem.id)
+    }
+    .frame(maxWidth: .infinity, maxHeight: .infinity)
+    .environment(\.defaultMinListRowHeight, 28)
+    .listStyle(.inset)
+    .alternatingRowBackgrounds(.enabled)
+    .contextMenu(forSelectionType: NewsInfo.self) { items in
+      let selectedItem = items.first
+
+      Button {
+        if selectedItem?.type == .article {
+          replyOpen = true
+        }
+      } label: {
+        Label(
+          "Reply to \(selectedItem?.articleUsername ?? "Post")",
+          systemImage: "arrowshape.turn.up.left")
+      }
+      .disabled(selectedItem == nil || selectedItem?.type != .article)
+
+    } primaryAction: { items in
+      guard let clickedNews = items.first else {
+        return
+      }
+
+      self.selection = clickedNews
+      if clickedNews.type == .bundle || clickedNews.type == .category
+        || clickedNews.children.count > 0
+      {
+        clickedNews.expanded.toggle()
+      }
+    }
+    .onChange(of: selection) {
+      self.articleText = nil
+      if let article = selection, article.type == .article {
+        article.read = true
+        if let articleFlavor = article.articleFlavors?.first,
+          let articleID = article.articleID
+        {
+          Task {
+            if let articleText = try? await self.model.getNewsArticle(id: articleID, at: article.path, flavor: articleFlavor) {
+              self.articleText = articleText
+            }
+          }
+          if self.splitHidden.side != nil {
+            withAnimation(.easeOut(duration: 0.15)) {
+              self.splitHidden.side = nil
+            }
+          }
+
+        }
+      } else {
+        if self.splitHidden.side != .bottom {
+          withAnimation(.easeOut(duration: 0.25)) {
+            self.splitHidden.side = .bottom
+          }
+        }
+      }
+    }
+    .onKeyPress(.rightArrow) {
+      if let s = selection, s.expandable {
+        s.expanded = true
+        return .handled
+      }
+      return .ignored
+    }
+    .onKeyPress(.leftArrow) {
+      if let s = selection, s.expandable {
+        s.expanded = false
+        return .handled
+      }
+      return .ignored
+    }
+  }
+  
+  private var loadingIndicator: some View {
+    VStack {
+      HStack {
+        ProgressView {
+          Text("Loading Newsgroups")
+        }
+        .controlSize(.regular)
+      }
+    }
+    .frame(maxWidth: .infinity)
+  }
+  
+  private var articleViewer: some View {
+    ScrollView {
+      VStack(alignment: .leading, spacing: 0) {
+        if let selection = selection, selection.type == .article {
+          if let poster = selection.articleUsername, let postDate = selection.articleDate {
+            HStack(alignment: .firstTextBaseline) {
+              Text(poster)
+                .foregroundStyle(.secondary)
+                .lineLimit(1)
+                .truncationMode(.tail)
+                .textSelection(.enabled)
+                .padding(.bottom, 16)
+              Spacer()
+              Text("\(NewsItemView.dateFormatter.string(from: postDate))")
+                .foregroundStyle(.secondary)
+                .lineLimit(1)
+                .truncationMode(.tail)
+                .textSelection(.enabled)
+                .padding(.bottom, 16)
+            }
+          }
+
+          Divider()
+
+          Text(selection.name).font(.title)
+            .textSelection(.enabled)
+            .padding(.bottom, 8)
+            .padding(.top, 16)
+
+          if let newsText = self.articleText {
+            Markdown(newsText)
+              .markdownTheme(.basic)
+              .textSelection(.enabled)
+              .lineSpacing(6)
+              .padding(.top, 16)
+          }
+        }
+        else {
+          EmptyView()
+//          HStack(alignment: .center) {
+//            Spacer()
+//            HStack(alignment: .center, spacing: 8) {
+//              Text("Select a news article to read")
+//                .foregroundStyle(.tertiary)
+//                .font(.subheadline)
+//            }
+//            Spacer()
+//          }
+//          .padding()
+//          .padding(.top, 48)
+        }
+      }
+      .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
+      .padding()
+    }
+    .frame(maxWidth: .infinity, maxHeight: .infinity)
+    .transition(.move(edge: .bottom))
+  }
+}
+
+#Preview {
+  NewsView()
+    .environment(HotlineState())
+}