import SwiftUI

/// A view that can be styled view the `.textLabelStyle` modifier, generally they will be
/// simple `Text` views, however it will accept any content view and will apply the style to.
///
/// Custom styles can be created by conforming to the ``TextLabelStyle`` protocol.
///
public struct TextLabel<Content: View>: View {

  @Environment(\.textLabelStyle) private var textLabelStyle

  private let content: () -> Content

  public init(@ViewBuilder content: @escaping () -> Content) {
    self.content = content
  }

  public var body: some View {
    textLabelStyle.makeBody(
      configuration: TextLabelConfiguration(
        label: TextLabelConfiguration.Label(content: content())
      )
    )
  }
}

extension TextLabel where Content == Text {
  public init<S>(_ text: S) where S: StringProtocol {
    self.init { Text(text) }
  }
}

#Preview {
  VStack {
    TextLabel("Automatic")

    TextLabel("Secondary-Bold")
      .textLabelStyle(AnyTextLabelStyle.boldSecondary)

    TextLabel("Secondary")
      .textLabelStyle(.secondary)
      .padding(.bottom)

    Group {
      TextLabel("One")
      TextLabel("Two")
      TextLabel("Three")
    }
    .font(.title)
    .textLabelStyle(.boldSecondary)
  }
}