// Copyright (C) 2024 Rubén Beltrán del Río

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see https://map.tranquil.systems.

import SwiftUI

struct MapPreferencesView: View {
  @AppStorage("showMapBackground") private var showBackground = UserPreferences.Defaults
    .showMapBackground
  @AppStorage("useCustomFont") private var useCustomFont = UserPreferences.Defaults.useCustomFont
  @AppStorage("customFontName") private var customFontName = UserPreferences.Defaults.customFontName
  @AppStorage("defaultExportFormat") private var defaultExportFormat = UserPreferences.Defaults
    .defaultExportFormat
  @AppStorage("useSmartLabelPositioning") private var useSmartLabelPositioning = UserPreferences
    .Defaults.useSmartLabelPositioning

  var body: some View {
    VStack(alignment: .center, spacing: Dimensions.Spacing.loose) {
      HStack(alignment: .firstTextBaseline, spacing: Dimensions.Spacing.regular) {
        Text("preferences.map.map_style.title")
          .font(.Theme.Body.emphasized)
          .frame(maxWidth: 250, alignment: .trailing)

        VStack(alignment: .leading, spacing: Dimensions.Spacing.cozy) {
          Toggle(
            isOn: $showBackground,
            label: {
              Text("preferences.map.map_style.show_background")
                .font(.Theme.Body.regular)
            })

          Toggle(
            isOn: $useSmartLabelPositioning,
            label: {
              Text("preferences.map.map_style.use_smart_label_positioning")
                .font(.Theme.Body.regular)
            })

          Toggle(
            isOn: $useCustomFont,
            label: {
              Text("preferences.map.map_style.use_custom_font")
                .font(.Theme.Body.regular)
            })

          Picker("", selection: $customFontName) {
            ForEach(NSFontManager.shared.availableFontFamilies, id: \.self) { fontFamily in
              Text(fontFamily).tag(fontFamily)
            }
          }
          .pickerStyle(MenuPickerStyle())
          .frame(maxWidth: 250)
          .padding(.leading, -Dimensions.Spacing.regular)
          .disabled(!useCustomFont)
        }
        .frame(maxWidth: .infinity, alignment: .leading)
      }

      Divider()

      HStack(alignment: .firstTextBaseline, spacing: Dimensions.Spacing.regular) {
        Text("preferences.map.export.title")
          .font(.Theme.Body.emphasized)
          .frame(maxWidth: 250, alignment: .trailing)

        VStack(alignment: .leading, spacing: Dimensions.Spacing.cozy) {
          Text("preferences.map.export.default_format")
            .font(.Theme.Body.regular)
          Picker("", selection: $defaultExportFormat) {
            ForEach(ExportFormats.allCases, id: \.self) { exportFormat in
              Text(exportFormat.title).tag(exportFormat.rawValue)
            }
          }
          .pickerStyle(MenuPickerStyle())
          .frame(maxWidth: 250)
          .padding(.leading, -Dimensions.Spacing.regular)
        }
        .frame(maxWidth: .infinity, alignment: .leading)
      }

      Spacer()
    }.padding(.vertical, Dimensions.Spacing.loose)
      .padding(.horizontal, Dimensions.Spacing.indulgent)
  }
}

#Preview {
  MapPreferencesView()
}