import 'package:auto_route/auto_route.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/extensions/asyncvalue_extensions.dart';
import 'package:immich_mobile/extensions/build_context_extensions.dart';
import 'package:immich_mobile/models/shared_link/shared_link.model.dart';
import 'package:immich_mobile/providers/shared_link.provider.dart';
import 'package:immich_mobile/widgets/shared_link/shared_link_item.dart';

@RoutePage()
class SharedLinkPage extends HookConsumerWidget {
  const SharedLinkPage({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final sharedLinks = ref.watch(sharedLinksStateProvider);

    useEffect(() {
      ref.read(sharedLinksStateProvider.notifier).fetchLinks();
      return () {
        if (!context.mounted) return;
        ref.invalidate(sharedLinksStateProvider);
      };
    }, []);

    Widget buildNoShares() {
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Padding(
            padding: const EdgeInsets.only(left: 16.0, top: 16.0),
            child: const Text(
              "shared_link_manage_links",
              style: TextStyle(fontSize: 14, color: Colors.grey, fontWeight: FontWeight.bold),
            ).tr(),
          ),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 16.0),
            child: Padding(
              padding: const EdgeInsets.symmetric(vertical: 10),
              child: const Text("you_dont_have_any_shared_links", style: TextStyle(fontSize: 14)).tr(),
            ),
          ),
          Expanded(
            child: Center(
              child: Icon(Icons.link_off, size: 100, color: context.themeData.iconTheme.color?.withValues(alpha: 0.5)),
            ),
          ),
        ],
      );
    }

    Widget buildSharesList(List<SharedLink> links) {
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Padding(
            padding: const EdgeInsets.only(left: 16.0, top: 16.0, bottom: 30.0),
            child: Text(
              "shared_link_manage_links",
              style: context.textTheme.labelLarge?.copyWith(color: context.textTheme.labelLarge?.color?.withAlpha(200)),
            ).tr(),
          ),
          Expanded(
            child: LayoutBuilder(
              builder: (context, constraints) {
                if (constraints.maxWidth > 600) {
                  // Two column
                  return GridView.builder(
                    gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
                      crossAxisCount: 2,
                      mainAxisExtent: 180,
                    ),
                    itemCount: links.length,
                    itemBuilder: (context, index) {
                      return SharedLinkItem(links.elementAt(index));
                    },
                  );
                }

                // Single column
                return ListView.builder(
                  itemCount: links.length,
                  itemBuilder: (context, index) {
                    return SharedLinkItem(links.elementAt(index));
                  },
                );
              },
            ),
          ),
        ],
      );
    }

    return Scaffold(
      appBar: AppBar(title: const Text("shared_link_app_bar_title").tr(), elevation: 0, centerTitle: false),
      body: SafeArea(
        child: sharedLinks.widgetWhen(
          onError: (error, stackTrace) => buildNoShares(),
          onData: (links) => links.isNotEmpty ? buildSharesList(links) : buildNoShares(),
        ),
      ),
    );
  }
}
