fix: fixes dead relative links in md/org with a new single-file viewer when tapped

Fixes: https://todo.sr.ht/~ccleberg/hutch/63

1 files changed, 85 insertions, 0 deletions

diff --git a/Hutch/Views/Repositories/LinkedFileSheetView.swift b/Hutch/Views/Repositories/LinkedFileSheetView.swift
new file mode 100644
index 0000000..4f176be
--- /dev/null
+++ b/Hutch/Views/Repositories/LinkedFileSheetView.swift
@@ -0,0 +1,85 @@
+import SwiftUI
+
+/// A sheet that fetches and displays a single repository file by path,
+/// using the `repository.path()` GraphQL field — one API call, no tree traversal.
+struct LinkedFileSheetView: View {
+    let rid: String
+    let service: SRHTService
+    let client: SRHTClient
+    let request: LinkedFileRequest
+
+    @AppStorage(AppStorageKeys.wrapRepositoryFileLines) private var wrapLines = false
+    @Environment(\.dismiss) private var dismiss
+
+    @State private var entry: TreeEntry?
+    @State private var isLoading = true
+    @State private var error: String?
+
+    var body: some View {
+        NavigationStack {
+            Group {
+                if isLoading {
+                    SRHTLoadingStateView(message: "Loading \(request.fileName)…")
+                } else if let error {
+                    SRHTErrorStateView(
+                        title: "Couldn't Load File",
+                        message: error,
+                        retryAction: { await load() }
+                    )
+                } else if let entry, let object = entry.object {
+                    fileContentView(entry: entry, object: object)
+                } else {
+                    ContentUnavailableView(
+                        "File Not Found",
+                        systemImage: "doc.questionmark",
+                        description: Text("\(request.path) could not be found in this repository.")
+                    )
+                }
+            }
+            .navigationTitle(request.fileName)
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Done") { dismiss() }
+                }
+            }
+        }
+        .task { await load() }
+    }
+
+    private func load() async {
+        isLoading = true
+        error = nil
+        let vm = FileTreeViewModel(repositoryRid: rid, service: service, client: client)
+        do {
+            entry = try await vm.fetchLinkedFile(path: request.path, revspec: request.revspec)
+        } catch {
+            self.error = error.userFacingMessage
+        }
+        isLoading = false
+    }
+
+    @ViewBuilder
+    private func fileContentView(entry: TreeEntry, object: GitObject) -> some View {
+        switch object {
+        case .textBlob(let blob):
+            CodeFileTextView(
+                text: blob.text ?? "",
+                fileName: entry.name,
+                wrapLines: wrapLines
+            )
+        case .binaryBlob:
+            ContentUnavailableView(
+                "Binary File",
+                systemImage: "doc.zipper",
+                description: Text("Binary files cannot be displayed inline.")
+            )
+        default:
+            ContentUnavailableView(
+                "Unknown File",
+                systemImage: "questionmark.folder",
+                description: Text("This object type cannot be displayed.")
+            )
+        }
+    }
+}