screen-template-9

screen-template-9

struct JuicyScreenTemplate<ViewState: KotlinBase, Content: View>: View {
    let screenBackgroundColor: Color
    let screenState: ScreenState
    let content: () -> Content
    let screenToolbarViewState: ScreenToolbarViewState?
    let screenCallToActionViewState: ScreenCallToActionViewState?
    let onCallToActionTapped: () -> Void
    
    init(
        screenBackgroundColor: Color = .white,
        screenState: ScreenState,
        screenToolbarViewState: ScreenToolbarViewState?,
        screenCallToActionViewState: ScreenCallToActionViewState? = nil,
        onCallToActionTapped: @escaping () -> Void = { },
        @ViewBuilder content: @escaping () -> Content
    ) {
        self.screenBackgroundColor = screenBackgroundColor
        self.screenState = screenState
        self.screenToolbarViewState = screenToolbarViewState
        self.screenCallToActionViewState = screenCallToActionViewState
        self.onCallToActionTapped = onCallToActionTapped
        self.content = content
    }
    
    var body: some View {
        ZStack {
            screenBackgroundColor.ignoresSafeArea()
            VStack(spacing: 0) {
                header
                ZStack(alignment: .bottom) {
                    screenContent
                    if let ctaViewState = screenCallToActionViewState {
                        CallToAction(
                            screenCallToActionViewState: ctaViewState,
                            onCallToActionTapped: onCallToActionTapped
                        )
                    }
                }
            }
        }
        .navigationBarTitle("")
        .navigationBarHidden(true)
    }
    
    @ViewBuilder
    var header: some View {
        if let viewState = screenToolbarViewState {
            JuicyHeaderView(title: viewState.title)
        }
    }
    
    @ViewBuilder
    var screenContent: some View {
        switch screenState {
        case is ScreenStateLoaded:
            VStack {
                Spacer()
                content()
                Spacer()
            }
        case is ScreenStateLoading:
            LoadingTemplate()
        case let errorViewState as ScreenStateError:
            ErrorTemplate(
                screenErrorViewState: errorViewState.screenErrorViewState
            )
        default:
            EmptyView()
        }
    }
}