import SwiftUI

/// Sekundär-Action-Buttons unterhalb der Lern-/Karten-hinzufügen-Buttons
/// in `DeckDetailView`. Eigenständige View, damit `DeckDetailView` selbst
/// nicht über die Type-Body-Length-Grenze rutscht und die einzelnen
/// Aktionen einzeln (z.B. via Snapshot-Tests) prüfbar bleiben.
///
/// Reines Layout — alle Side-Effects laufen über die Callbacks im Parent.
struct DeckSecondaryActions: View {
    let isForkedFromMarketplace: Bool
    let isPullingUpdate: Bool
    let isDuplicating: Bool
    let onPullUpdate: () -> Void
    let onDuplicate: () -> Void
    let onPublish: () -> Void
    let onPrint: () -> Void
    let onEdit: () -> Void
    let onDelete: () -> Void

    var body: some View {
        if isForkedFromMarketplace {
            updateButton
        } else {
            publishButton
        }
        duplicateButton
        printButton
        editDeleteRow
    }

    private var printButton: some View {
        Button(action: onPrint) {
            HStack {
                Image(systemName: "printer")
                Text("Druck-Ansicht / PDF")
            }
            .frame(maxWidth: .infinity)
            .padding(.vertical, 10)
            .background(CardsTheme.surface, in: RoundedRectangle(cornerRadius: 10))
            .foregroundStyle(CardsTheme.foreground)
            .overlay(
                RoundedRectangle(cornerRadius: 10)
                    .stroke(CardsTheme.border, lineWidth: 1)
            )
        }
        .buttonStyle(.plain)
    }

    private var publishButton: some View {
        Button(action: onPublish) {
            HStack {
                Image(systemName: "globe.badge.chevron.backward")
                Text("Im Marketplace veröffentlichen")
            }
            .frame(maxWidth: .infinity)
            .padding(.vertical, 10)
            .background(CardsTheme.surface, in: RoundedRectangle(cornerRadius: 10))
            .foregroundStyle(CardsTheme.primary)
            .overlay(
                RoundedRectangle(cornerRadius: 10)
                    .stroke(CardsTheme.primary.opacity(0.3), lineWidth: 1)
            )
        }
        .buttonStyle(.plain)
    }

    private var updateButton: some View {
        Button(action: onPullUpdate) {
            HStack {
                if isPullingUpdate {
                    ProgressView().tint(CardsTheme.primary)
                } else {
                    Image(systemName: "arrow.triangle.2.circlepath")
                }
                Text(isPullingUpdate ? "Wird geprüft …" : "Updates aus Marketplace prüfen")
            }
            .frame(maxWidth: .infinity)
            .padding(.vertical, 10)
            .background(CardsTheme.surface, in: RoundedRectangle(cornerRadius: 10))
            .foregroundStyle(CardsTheme.primary)
            .overlay(
                RoundedRectangle(cornerRadius: 10)
                    .stroke(CardsTheme.primary.opacity(0.3), lineWidth: 1)
            )
        }
        .buttonStyle(.plain)
        .disabled(isPullingUpdate)
    }

    private var duplicateButton: some View {
        Button(action: onDuplicate) {
            HStack {
                if isDuplicating {
                    ProgressView().tint(CardsTheme.foreground)
                } else {
                    Image(systemName: "doc.on.doc")
                }
                Text(isDuplicating ? "Wird dupliziert …" : "Deck duplizieren")
            }
            .frame(maxWidth: .infinity)
            .padding(.vertical, 10)
            .background(CardsTheme.surface, in: RoundedRectangle(cornerRadius: 10))
            .foregroundStyle(CardsTheme.foreground)
            .overlay(
                RoundedRectangle(cornerRadius: 10)
                    .stroke(CardsTheme.border, lineWidth: 1)
            )
        }
        .buttonStyle(.plain)
        .disabled(isDuplicating)
    }

    private var editDeleteRow: some View {
        HStack(spacing: 12) {
            Button(action: onEdit) {
                Label("Bearbeiten", systemImage: "pencil")
                    .frame(maxWidth: .infinity)
                    .padding(.vertical, 10)
                    .background(CardsTheme.surface, in: RoundedRectangle(cornerRadius: 10))
                    .foregroundStyle(CardsTheme.foreground)
                    .overlay(
                        RoundedRectangle(cornerRadius: 10)
                            .stroke(CardsTheme.border, lineWidth: 1)
                    )
            }
            .buttonStyle(.plain)

            Button(action: onDelete) {
                Label("Löschen", systemImage: "trash")
                    .frame(maxWidth: .infinity)
                    .padding(.vertical, 10)
                    .background(CardsTheme.error.opacity(0.1), in: RoundedRectangle(cornerRadius: 10))
                    .foregroundStyle(CardsTheme.error)
            }
            .buttonStyle(.plain)
        }
    }
}