import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:yubico_authenticator/management/models.dart';
import 'package:collection/collection.dart';

import '../models.dart';
import '../state.dart';
import 'device_avatar.dart';

Function _listEquals = const ListEquality().equals;

class MainActionsDialog extends ConsumerWidget {
  const MainActionsDialog({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final devices = ref.watch(attachedDevicesProvider).toList();
    final currentNode = ref.watch(currentDeviceProvider);
    final data = ref.watch(currentDeviceDataProvider);
    final actions = ref.watch(menuActionsProvider)(context);

    if (currentNode != null) {
      devices.removeWhere((e) => _listEquals(e.path, currentNode.path));
    }

    return SimpleDialog(
      children: [
        if (currentNode != null)
          _CurrentDeviceRow(
            currentNode,
            data: data,
            onTap: () {
              Navigator.of(context).pop();
            },
          ),
        ...devices.map(
          (e) => _DeviceRow(
            e,
            info: e.map(
              usbYubiKey: (node) => node.info,
              nfcReader: (_) => null,
            ),
            onTap: () {
              Navigator.of(context).pop();
              ref.read(currentDeviceProvider.notifier).setCurrentDevice(e);
            },
          ),
        ),
        if (currentNode == null && devices.isEmpty)
          Center(
              child: Text(
            'No YubiKey found',
            style: Theme.of(context).textTheme.titleMedium,
          )),
        if (actions.isNotEmpty) const Divider(),
        ...actions.map((a) => ListTile(
              dense: true,
              leading: a.icon,
              title: Text(a.text),
              onTap: () {
                Navigator.of(context).pop();
                a.action?.call();
              },
            )),
      ],
    );
  }
}

class _CurrentDeviceRow extends StatelessWidget {
  final DeviceNode node;
  final YubiKeyData? data;
  final Function() onTap;

  const _CurrentDeviceRow(
    this.node, {
    this.data,
    required this.onTap,
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final subtitle = node.when(
        usbYubiKey: (_, __, ___, info) =>
            'S/N: ${info.serial} F/W: ${info.version}',
        nfcReader: (_, name) {
          final info = data?.info;
          return info == null
              ? name
              : '$name\nS/N: ${info.serial} F/W: ${info.version}';
        });

    return ListTile(
      leading: data != null
          ? DeviceAvatar.yubiKeyData(
              data!,
              selected: true,
            )
          : DeviceAvatar.deviceNode(
              node,
              selected: true,
            ),
      title: Text(data?.name ?? 'No YubiKey present'),
      isThreeLine: subtitle.contains('\n'),
      subtitle: Text(subtitle),
      onTap: onTap,
    );
  }
}

class _DeviceRow extends StatelessWidget {
  final DeviceNode node;
  final DeviceInfo? info;
  final Function() onTap;

  const _DeviceRow(
    this.node, {
    required this.info,
    required this.onTap,
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return ListTile(
      leading: DeviceAvatar.deviceNode(node),
      title: Text(node.name),
      subtitle: Text(
        node.when(
          usbYubiKey: (_, __, ___, info) =>
              'S/N: ${info.serial} F/W: ${info.version}',
          nfcReader: (_, __) => 'Select to scan',
        ),
      ),
      onTap: onTap,
    );
  }
}