/*
 * Copyright (C) 2022-2023 Yubico.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

import '../../app/shortcuts.dart';
import '../../app/views/app_list_item.dart';
import '../../core/state.dart';
import '../features.dart' as features;
import '../models.dart';
import 'account_helper.dart';
import 'account_icon.dart';

class AccountView extends ConsumerStatefulWidget {
  final OathCredential credential;
  final bool expanded;
  final bool selected;
  final bool large;
  const AccountView(this.credential,
      {super.key,
      required this.expanded,
      required this.selected,
      this.large = false});

  @override
  ConsumerState<ConsumerStatefulWidget> createState() => _AccountViewState();
}

String _a11yCredentialLabel(String? issuer, String name, String? code) {
  return [issuer, name, code].whereNotNull().join(' ');
}

class _AccountViewState extends ConsumerState<AccountView> {
  OathCredential get credential => widget.credential;

  Color _iconColor(int shade) {
    final colors = [
      Colors.red[shade],
      Colors.pink[shade],
      Colors.purple[shade],
      Colors.deepPurple[shade],
      Colors.indigo[shade],
      Colors.blue[shade],
      Colors.lightBlue[shade],
      Colors.cyan[shade],
      Colors.teal[shade],
      Colors.green[shade],
      Colors.lightGreen[shade],
      Colors.lime[shade],
      Colors.yellow[shade],
      Colors.amber[shade],
      Colors.orange[shade],
      Colors.deepOrange[shade],
      Colors.brown[shade],
      Colors.grey[shade],
      Colors.blueGrey[shade],
    ];

    final label = credential.issuer != null
        ? '${credential.issuer} (${credential.name})'
        : credential.name;

    return colors[label.hashCode % colors.length]!;
  }

  @override
  Widget build(BuildContext context) {
    final hasFeature = ref.watch(featureProvider);
    final helper = AccountHelper(context, ref, credential);
    final subtitle = helper.subtitle;
    final circleAvatar = CircleAvatar(
      foregroundColor: Theme.of(context).colorScheme.surface,
      backgroundColor: _iconColor(400),
      child: Text(
        (credential.issuer ?? credential.name).characters.first.toUpperCase(),
        style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w300),
      ),
    );

    final openIntent = OpenIntent<OathCredential>(widget.credential);
    final buttonStyle = FilledButton.styleFrom(
        backgroundColor: Theme.of(context).hoverColor, elevation: 0);
    return AppListItem<OathCredential>(
      credential,
      selected: widget.selected,
      leading:
          AccountIcon(issuer: credential.issuer, defaultWidget: circleAvatar),
      title: helper.title,
      subtitle: subtitle,
      semanticTitle: _a11yCredentialLabel(
          credential.issuer, credential.name, helper.code?.value),
      trailing: helper.code != null
          ? FilledButton.tonalIcon(
              icon: helper.buildCodeIcon(),
              label: helper.buildCodeLabel(),
              style: buttonStyle,
              onPressed: Actions.handler(context, openIntent),
            )
          : FilledButton.tonal(
              style: buttonStyle,
              onPressed: Actions.handler(context, openIntent),
              child: helper.buildCodeIcon()),
      tapIntent: isDesktop && !widget.expanded ? null : openIntent,
      doubleTapIntent: hasFeature(features.accountsClipboard)
          ? CopyIntent<OathCredential>(credential)
          : null,
      buildPopupActions: (_) => helper.buildActions(),
      itemBuilder: widget.large
          ? (context) {
              return ListTile(
                mouseCursor: !(isDesktop && !widget.expanded)
                    ? SystemMouseCursors.click
                    : null,
                shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(16)),
                selectedTileColor:
                    Theme.of(context).colorScheme.secondaryContainer,
                selectedColor:
                    Theme.of(context).colorScheme.onSecondaryContainer,
                selected: widget.selected,
                tileColor: Theme.of(context).hoverColor,
                contentPadding:
                    const EdgeInsets.symmetric(horizontal: 8.0, vertical: 4.0),
                title: Column(
                  children: [
                    Row(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        AccountIcon(
                            issuer: credential.issuer,
                            defaultWidget: circleAvatar),
                        const SizedBox(width: 12),
                        Flexible(
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Text(
                                helper.title,
                                style: Theme.of(context)
                                    .textTheme
                                    .bodyLarge
                                    ?.copyWith(
                                        color: Theme.of(context)
                                            .colorScheme
                                            .onSurface),
                                overflow: TextOverflow.fade,
                                maxLines: 1,
                                softWrap: false,
                              ),
                              if (subtitle != null)
                                Text(
                                  subtitle,
                                  style: Theme.of(context)
                                      .textTheme
                                      .bodyMedium
                                      ?.copyWith(
                                          color: Theme.of(context)
                                              .colorScheme
                                              .onSurfaceVariant),
                                  overflow: TextOverflow.fade,
                                  maxLines: 1,
                                  softWrap: false,
                                )
                            ],
                          ),
                        )
                      ],
                    ),
                    const SizedBox(height: 8.0),
                    Focus(
                      skipTraversal: true,
                      descendantsAreTraversable: false,
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.end,
                        children: [
                          helper.code != null
                              ? FilledButton.tonalIcon(
                                  icon: helper.buildCodeIcon(),
                                  label: helper.buildCodeLabel(),
                                  style: buttonStyle,
                                  onPressed:
                                      Actions.handler(context, openIntent),
                                )
                              : FilledButton.tonal(
                                  style: buttonStyle,
                                  onPressed:
                                      Actions.handler(context, openIntent),
                                  child: helper.buildCodeIcon()),
                        ],
                      ),
                    ),
                  ],
                ),
              );
            }
          : null,
    );
  }
}