/*
 * Copyright (c) 2024-2025 Fabian Freund.
 *
 * This file is part of WebLibre
 * (see https://weblibre.eu).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
import 'package:fading_scroll/fading_scroll.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:go_router/go_router.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:weblibre/features/bangs/data/models/bang_data.dart';
import 'package:weblibre/features/bangs/domain/providers/search.dart';
import 'package:weblibre/features/geckoview/domain/providers/tab_session.dart';
import 'package:weblibre/features/geckoview/domain/providers/tab_state.dart';
import 'package:weblibre/features/geckoview/domain/repositories/tab.dart';
import 'package:weblibre/features/geckoview/features/browser/domain/providers.dart';
import 'package:weblibre/features/geckoview/features/search/domain/providers/search_suggestions.dart';
import 'package:weblibre/features/geckoview/features/search/presentation/widgets/search_field.dart';
import 'package:weblibre/features/geckoview/features/search/presentation/widgets/search_modules/search_suggestions.dart';
import 'package:weblibre/presentation/hooks/listenable_callback.dart';
import 'package:weblibre/presentation/widgets/selectable_chips.dart';
import 'package:weblibre/presentation/widgets/url_icon.dart';

class SiteSearch extends HookConsumerWidget {
  final String domain;
  final List<BangData> availableBangs;
  final bool searchInNewTab;

  const SiteSearch({
    required this.domain,
    required this.availableBangs,
    super.key,
    this.searchInNewTab = true,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final formKey = useMemoized(() => GlobalKey<FormState>());

    final searchTextController = useTextEditingController();

    useListenableCallback(searchTextController, () {
      ref
          .read(searchSuggestionsProvider().notifier)
          .addQuery(searchTextController.text);
    });

    final selectedBang = ref.watch(selectedBangDataProvider(domain: domain));

    final activeBang = selectedBang ?? availableBangs.firstOrNull;

    Future<void> submitSearch(String query) async {
      if (activeBang != null && (formKey.currentState?.validate() == true)) {
        final isPrivate =
            ref.read(selectedTabStateProvider)?.isPrivate ?? false;

        final searchUri = activeBang.getTemplateUrl(query);

        if (!isPrivate) {
          await ref
              .read(bangSearchProvider.notifier)
              .triggerBangSearch(activeBang, query);
        }

        if (searchInNewTab) {
          await ref
              .read(tabRepositoryProvider.notifier)
              .addTab(url: searchUri, private: isPrivate);
        } else {
          await ref
              .read(tabSessionProvider(tabId: null).notifier)
              .loadUrl(url: searchUri);
        }

        if (context.mounted) {
          context.pop();
        }
      }
    }

    return Form(
      key: formKey,
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          SizedBox(
            height: 48,
            width: double.maxFinite,
            child: SelectableChips(
              itemId: (bang) => bang.trigger,
              itemAvatar: (bang) =>
                  UrlIcon([bang.getTemplateUrl('')], iconSize: 20),
              itemLabel: (bang) => Text(bang.websiteName),
              itemTooltip: (bang) => bang.trigger,
              availableItems: availableBangs,
              selectedItem: selectedBang,
              onSelected: (bang) {
                ref
                    .read(selectedBangTriggerProvider(domain: domain).notifier)
                    .setTrigger(bang.trigger);
              },
              onDeleted: (bang) {
                if (ref.read(selectedBangTriggerProvider(domain: domain)) ==
                    bang.trigger) {
                  ref
                      .read(
                        selectedBangTriggerProvider(domain: domain).notifier,
                      )
                      .clearTrigger();
                }
              },
            ),
          ),
          SearchField(
            textEditingController: searchTextController,
            activeBang: activeBang,
            onSubmitted: (_) async {
              await submitSearch(searchTextController.text);
            },
            showSuggestions: false,
          ),
          ConstrainedBox(
            constraints: const BoxConstraints(maxHeight: 150),
            child: FadingScroll(
              fadingSize: 25,
              builder: (context, controller) {
                return CustomScrollView(
                  shrinkWrap: true,
                  controller: controller,
                  slivers: [
                    SearchTermSuggestions(
                      searchTextController: searchTextController,
                      activeBang: activeBang,
                      submitSearch: submitSearch,
                      showHistory: false,
                      showChips: false,
                    ),
                  ],
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}