import SwiftUI

/// Edit one file and commit it. The commit is unsigned — the server
/// authors it — so a repository requiring signatures refuses, and the
/// refusal is what the sheet shows.
struct FileEditSheet: View {

    let model: FileViewModel
    let branch: String
    @Binding var content: String
    let onCommitted: () -> Void

    @Environment(\.dismiss) private var dismiss
    @State private var message = ""

    var body: some View {
        NavigationStack {
            Form {
                Section {
                    TextEditor(text: $content)
                        .font(.gbMono(.caption))
                        .frame(minHeight: 260)
                        .autocorrectionDisabled()
                        .textInputAutocapitalization(.never)
                        .accessibilityIdentifier("file-edit-content")
                } header: {
                    Text(model.fileName)
                } footer: {
                    Text("Commits to \(branch) as an unsigned commit.")
                }
                Section("Message") {
                    TextField("edit \(model.fileName)", text: $message)
                        .autocorrectionDisabled()
                        .accessibilityIdentifier("file-edit-message")
                }
                if let error = model.actionError {
                    Section {
                        GBNotice(error, .gbWarn)
                    }
                }
            }
            .navigationTitle("Edit")
            .navigationBarTitleDisplayMode(.inline)
            .toolbar {
                ToolbarItem(placement: .cancellationAction) {
                    Button("Cancel") { dismiss() }
                }
                ToolbarItem(placement: .confirmationAction) {
                    if model.working {
                        ProgressView()
                    } else {
                        Button("Commit") {
                            Task {
                                if await model.commit(content: content, message: message) {
                                    onCommitted()
                                }
                            }
                        }
                        .accessibilityIdentifier("file-edit-commit")
                    }
                }
            }
            .interactiveDismissDisabled(model.working)
        }
    }
}