import SstUI
import SwiftUI

struct Sidebar: View {
    @EnvironmentObject private var model: AppModel

    var body: some View {
        VStack(alignment: .leading, spacing: Layout.panelGap) {
            SilkLabel(AppIdentity.brandCaption)
            ForEach(AppModel.Section.allCases) { section in
                Button {
                    model.section = section
                } label: {
                    Text(title(for: section)).frame(maxWidth: .infinity)
                }
                .buttonStyle(KeyButtonStyle(latched: model.section == section))
            }
            Spacer()
            ControlsBlock()
        }
        .padding(Layout.panelPadding)
        .frame(width: Layout.sidebarWidth)
    }

    private func title(for section: AppModel.Section) -> String {
        switch section {
        case .transcripts: Strings.transcripts
        case .dictionary: Strings.dictionary
        case .note: Strings.note
        }
    }
}

/// Four lamps: the three macOS permissions and the speech model.
struct ControlsBlock: View {
    @EnvironmentObject private var model: AppModel

    var body: some View {
        VStack(alignment: .leading, spacing: Space.s3) {
            SilkLabel(Strings.controls)
            SeamDivider()
            ForEach(PermissionMonitor.Kind.allCases) { kind in
                let granted = model.permissions.isGranted(kind)
                HStack(spacing: Space.s3) {
                    LampView(isOn: granted, tint: .amber)
                    Text(kind.title).textStyle(Typography.meta).foregroundStyle(Palette.inkSecondary)
                    Spacer()
                    if !granted {
                        Button(Strings.open) { model.permissions.openSettings(for: kind) }
                            .buttonStyle(KeyButtonStyle())
                            .help(Strings.openSystemSettings)
                    }
                }
            }
            HStack(spacing: Space.s3) {
                LampView(isOn: model.modelReady, tint: .amber)
                Text(Strings.modelLamp).textStyle(Typography.meta).foregroundStyle(Palette.inkSecondary)
                Spacer()
            }
        }
        .onAppear { model.permissions.startPolling() }
        .onDisappear { model.permissions.stopPolling() }
    }
}