import SwiftUI

struct SettingsView: View {
    @EnvironmentObject private var settings: AppSettings
    @Environment(\.dismiss) private var dismiss

    var body: some View {
        VStack(alignment: .leading, spacing: 16) {
            Text("Einstellungen")
                .font(.title2.bold())

            VStack(alignment: .leading, spacing: 6) {
                Text("Quellordner").font(.headline)
                Text("Der Dateiauswahl-Dialog öffnet sich hier.")
                    .font(.caption)
                    .foregroundStyle(.secondary)
                folderRow(current: settings.sourceFolder) { settings.setSourceFolder($0) }
            }

            VStack(alignment: .leading, spacing: 6) {
                Text("Zielordner").font(.headline)
                Text("Hier entsteht pro Projekt ein Unterordner mit Original und 4:5-Fassung.")
                    .font(.caption)
                    .foregroundStyle(.secondary)
                folderRow(current: settings.targetFolder) { settings.setTargetFolder($0) }
            }

            Spacer()

            HStack {
                Spacer()
                Button("Fertig") { dismiss() }
                    .keyboardShortcut(.defaultAction)
            }
        }
        .padding(20)
        .frame(minWidth: 440, minHeight: 280)
    }

    @ViewBuilder
    private func folderRow(current: URL?, onChoose: @escaping (URL) -> Void) -> some View {
        HStack {
            Text(current?.path ?? "Nicht gesetzt")
                .lineLimit(1)
                .truncationMode(.middle)
                .foregroundStyle(current == nil ? .secondary : .primary)
            Spacer()
            Button("Wählen…") {
                let panel = NSOpenPanel()
                panel.canChooseDirectories = true
                panel.canChooseFiles = false
                panel.allowsMultipleSelection = false
                if let current { panel.directoryURL = current }
                guard panel.runModal() == .OK, let url = panel.url else { return }
                onChoose(url)
            }
        }
    }
}