import 'package:cubit_form/cubit_form.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:selfprivacy/config/brand_theme.dart';
import 'package:selfprivacy/logic/cubit/app_config_dependent/authentication_dependend_cubit.dart';
import 'package:selfprivacy/logic/cubit/forms/setup/initializing/provider_form_cubit.dart';
import 'package:selfprivacy/logic/models/hive/server_details.dart';
import 'package:selfprivacy/ui/components/brand_bottom_sheet/brand_bottom_sheet.dart';
import 'package:selfprivacy/ui/components/brand_button/filled_button.dart';
import 'package:selfprivacy/ui/components/brand_md/brand_md.dart';

class ProviderPicker extends StatefulWidget {
  const ProviderPicker({
    required this.serverInstallationCubit,
    super.key,
  });

  final ServerInstallationCubit serverInstallationCubit;

  @override
  State<ProviderPicker> createState() => _ProviderPickerState();
}

class _ProviderPickerState extends State<ProviderPicker> {
  ServerProvider selectedProvider = ServerProvider.unknown;

  void setProvider(final ServerProvider provider) {
    setState(() {
      selectedProvider = provider;
    });
  }

  @override
  Widget build(final BuildContext context) {
    switch (selectedProvider) {
      case ServerProvider.unknown:
        return ProviderSelectionPage(
          callback: setProvider,
        );

      case ServerProvider.hetzner:
        return ProviderInputDataPage(
          serverInstallationCubit: widget.serverInstallationCubit,
          providerInfo: ProviderPageInfo(
            providerType: ServerProvider.hetzner,
            pathToHow: 'hetzner_how',
            image: Image.asset(
              'assets/images/logos/hetzner.png',
              width: 150,
            ),
          ),
        );

      case ServerProvider.digitalOcean:
        return ProviderInputDataPage(
          serverInstallationCubit: widget.serverInstallationCubit,
          providerInfo: ProviderPageInfo(
            providerType: ServerProvider.digitalOcean,
            pathToHow: 'hetzner_how',
            image: Image.asset(
              'assets/images/logos/digital_ocean.png',
              width: 150,
            ),
          ),
        );
    }
  }
}

class ProviderPageInfo {
  const ProviderPageInfo({
    required this.providerType,
    required this.pathToHow,
    required this.image,
  });

  final String pathToHow;
  final Image image;
  final ServerProvider providerType;
}

class ProviderInputDataPage extends StatelessWidget {
  const ProviderInputDataPage({
    required this.providerInfo,
    required this.serverInstallationCubit,
    super.key,
  });

  final ProviderPageInfo providerInfo;
  final ServerInstallationCubit serverInstallationCubit;

  @override
  Widget build(final BuildContext context) => BlocProvider(
        create: (final context) => ProviderFormCubit(
          serverInstallationCubit,
        ),
        child: Builder(
          builder: (final context) {
            final formCubitState = context.watch<ProviderFormCubit>().state;
            return Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                providerInfo.image,
                const SizedBox(height: 10),
                Text(
                  'initializing.connect_to_server'.tr(),
                  style: Theme.of(context).textTheme.titleLarge,
                ),
                const Spacer(),
                CubitFormTextField(
                  formFieldCubit: context.read<ProviderFormCubit>().apiKey,
                  textAlign: TextAlign.center,
                  scrollPadding: const EdgeInsets.only(bottom: 70),
                  decoration: const InputDecoration(
                    hintText: 'Provider API Token',
                  ),
                ),
                const Spacer(),
                FilledButton(
                  title: 'basis.connect'.tr(),
                  onPressed: () => formCubitState.isSubmitting
                      ? null
                      : () => context.read<ProviderFormCubit>().trySubmit(),
                ),
                const SizedBox(height: 10),
                OutlinedButton(
                  child: Text('initializing.how'.tr()),
                  onPressed: () => showModalBottomSheet<void>(
                    context: context,
                    isScrollControlled: true,
                    backgroundColor: Colors.transparent,
                    builder: (final BuildContext context) => BrandBottomSheet(
                      isExpended: true,
                      child: Padding(
                        padding: paddingH15V0,
                        child: ListView(
                          padding: const EdgeInsets.symmetric(vertical: 16),
                          children: [
                            BrandMarkdown(
                              fileName: providerInfo.pathToHow,
                            ),
                          ],
                        ),
                      ),
                    ),
                  ),
                ),
              ],
            );
          },
        ),
      );
}

class ProviderSelectionPage extends StatelessWidget {
  const ProviderSelectionPage({
    required this.callback,
    super.key,
  });

  final Function callback;

  @override
  Widget build(final BuildContext context) => Column(
        children: [
          Text(
            'initializing.select_provider'.tr(),
            style: Theme.of(context).textTheme.titleLarge,
          ),
          const SizedBox(height: 10),
          Text(
            'initializing.place_where_data'.tr(),
          ),
          const SizedBox(height: 10),
          ConstrainedBox(
            constraints: const BoxConstraints(
              maxWidth: 320,
            ),
            child: Row(
              children: [
                InkWell(
                  onTap: () {
                    context.read<ServerInstallationCubit>().setServerProviderType(ServerProvider.hetzner);
                    callback(ServerProvider.hetzner);
                  },
                  child: Image.asset(
                    'assets/images/logos/hetzner.png',
                    width: 150,
                  ),
                ),
                const SizedBox(
                  width: 20,
                ),
                InkWell(
                  onTap: () {
                    context.read<ServerInstallationCubit>().setServerProviderType(ServerProvider.digitalOcean);
                    callback(ServerProvider.digitalOcean);
                  },
                  child: Image.asset(
                    'assets/images/logos/digital_ocean.png',
                    width: 150,
                  ),
                ),
              ],
            ),
          ),
        ],
      );
}