import "package:dartamp/src/main_window/presets_window.dart";
import "package:flutter_test/flutter_test.dart";
import "package:material_ui/material_ui.dart";
import "package:shared_preferences/shared_preferences.dart";

void main() {
  setUp(() {
    SharedPreferences.setMockInitialValues({});
  });

  testWidgets("shows the preset list in load mode with no name field", (
    tester,
  ) async {
    await tester.pumpWidget(
      const MaterialApp(home: PresetsWindow(mode: PresetsMode.load)),
    );
    await tester.pump();

    expect(find.text("Winamp EQ Presets"), findsOneWidget);
    expect(find.text("Classical"), findsOneWidget);
    expect(find.byType(TextField), findsNothing);
  });

  testWidgets("save mode adds the name field", (tester) async {
    await tester.pumpWidget(
      const MaterialApp(home: PresetsWindow(mode: PresetsMode.save)),
    );
    await tester.pump();

    expect(find.text("Preset name"), findsOneWidget);
    expect(find.byType(TextField), findsOneWidget);
  });

  testWidgets("selecting a preset enables the Load action", (tester) async {
    await tester.pumpWidget(
      const MaterialApp(home: PresetsWindow(mode: PresetsMode.load)),
    );
    await tester.pump();

    FilledButton button() => tester.widget<FilledButton>(
      find.widgetWithText(FilledButton, "Load"),
    );
    expect(button().onPressed, isNull);

    await tester.tap(find.text("Classical"));
    // The list rows have an onDoubleTap in load mode, so the single-tap
    // callback only fires after the double-tap timeout elapses.
    await tester.pump(const Duration(milliseconds: 350));
    expect(button().onPressed, isNotNull);
  });

  testWidgets("mode switcher toggles between load and delete", (tester) async {
    await tester.pumpWidget(
      const MaterialApp(home: PresetsWindow(mode: PresetsMode.load)),
    );
    await tester.pump();

    await tester.tap(find.text("Delete"));
    await tester.pump();
    expect(find.widgetWithText(FilledButton, "Delete"), findsOneWidget);
    expect(find.byType(TextField), findsNothing);
  });
}