import WidgetKit
import SwiftUI
import SFSafeSymbols

struct Provider: TimelineProvider {

    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date())
    }

    func getSnapshot(in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry = SimpleEntry(date: Date())
        completion(entry)
    }

    func getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        let entries = [Entry(date: .now), Entry(date: .distantFuture)]
        completion(Timeline(entries: entries, policy: .atEnd))
    }
}

struct SimpleEntry: TimelineEntry {
    let date: Date
}

struct Sesame_WidgetEntryView : View {
    
    @Environment(\.widgetRenderingMode)
    var widgetRenderingMode
    
    @Environment(\.widgetFamily)
    var widgetFamily

    var entry: Provider.Entry

    var body: some View {
        switch widgetRenderingMode {
        default:
            image.unredacted()
        }
    }
    
    private var image: some View {
        Image(systemSymbol: .lock)
            .resizable()
            .aspectRatio(contentMode: .fit)
            .padding()
            .fontWeight(.thin)
            .widgetURL(URL(string: "sesame:///open")!)
            .containerBackground(.green, for: .widget)
            .widgetAccentable()
    }
}

@main
struct Sesame_Widget: Widget {
    let kind: String = "SesameOpen"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: Provider()) { entry in
            Sesame_WidgetEntryView(entry: entry)
        }
        .configurationDisplayName("Open")
        .description("This widget can be used to unlock the door with a single tap.")
    }
}

struct Sesame_Widget_Previews: PreviewProvider {
    static var previews: some View {
        Sesame_WidgetEntryView(entry: SimpleEntry(date: Date()))
            .previewContext(WidgetPreviewContext(family: .accessoryRectangular))
    }
}