m3_lightmeter/lib/screens/settings/utils/show_buy_pro_dialog.dart

import 'package:flutter/material.dart';
import 'package:lightmeter/data/models/feature.dart';
import 'package:lightmeter/generated/l10n.dart';
import 'package:lightmeter/providers/remote_config_provider.dart';
import 'package:lightmeter/res/dimens.dart';
import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';

Future<void> showBuyProDialog(BuildContext context) {
  final unlockFeaturesEnabled = RemoteConfig.isEnabled(context, Feature.unlockProFeaturesText);

  Widget splitDescription() {
    final description =
        unlockFeaturesEnabled ? S.of(context).unlockProFeaturesDescription : S.of(context).lightmeterProDescription;
    final paragraphs = description.split('\n\n');
    final features = paragraphs.first.split('\n \u2022 ').sublist(1);
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      mainAxisSize: MainAxisSize.min,
      children: [
        Text(paragraphs.first.split('\n \u2022 ').first),
        ...features.map(
          (f) => Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              const Text('\u2022 '),
              Flexible(child: Text(f)),
            ],
          ),
        ),
        Text('\n${paragraphs.last}'),
      ],
    );
  }

  return showDialog(
    context: context,
    builder: (_) => AlertDialog(
      icon: const Icon(Icons.star),
      titlePadding: Dimens.dialogIconTitlePadding,
      title: Text(unlockFeaturesEnabled ? S.of(context).proFeatures : S.of(context).lightmeterPro),
      contentPadding: const EdgeInsets.symmetric(horizontal: Dimens.paddingL),
      content: SingleChildScrollView(child: splitDescription()),
      actionsPadding: Dimens.dialogActionsPadding,
      actions: [
        TextButton(
          onPressed: Navigator.of(context).pop,
          child: Text(S.of(context).cancel),
        ),
        FilledButton(
          onPressed: () {
            Navigator.of(context).pop();
            IAPProductsProvider.maybeOf(context)?.buy(IAPProductType.paidFeatures);
          },
          child: Text(unlockFeaturesEnabled ? S.of(context).unlock : S.of(context).buy),
        ),
      ],
    ),
  );
}