import 'package:flutter/material.dart' hide Visibility;

import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:matrix/matrix.dart';

import 'package:fluffychat/pages/chat_access_settings/chat_access_settings_controller.dart';
import 'package:fluffychat/utils/fluffy_share.dart';
import 'package:fluffychat/utils/matrix_sdk_extensions/matrix_locals.dart';
import 'package:fluffychat/widgets/layouts/max_width_body.dart';

class ChatAccessSettingsPageView extends StatelessWidget {
  final ChatAccessSettingsController controller;
  const ChatAccessSettingsPageView(this.controller, {super.key});

  @override
  Widget build(BuildContext context) {
    final room = controller.room;
    return Scaffold(
      appBar: AppBar(
        leading: const Center(child: BackButton()),
        title: Text(L10n.of(context)!.accessAndVisibility),
      ),
      body: MaxWidthBody(
        child: StreamBuilder<Object>(
          stream: room.onUpdate.stream,
          builder: (context, snapshot) => Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              ListTile(
                title: Text(
                  L10n.of(context)!.visibilityOfTheChatHistory,
                  style: TextStyle(
                    color: Theme.of(context).colorScheme.secondary,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
              for (final historyVisibility in HistoryVisibility.values)
                RadioListTile<HistoryVisibility>.adaptive(
                  title: Text(
                    historyVisibility
                        .getLocalizedString(MatrixLocals(L10n.of(context)!)),
                  ),
                  value: historyVisibility,
                  groupValue: room.historyVisibility,
                  onChanged: controller.historyVisibilityLoading ||
                          !room.canChangeHistoryVisibility
                      ? null
                      : controller.setHistoryVisibility,
                ),
              Divider(color: Theme.of(context).dividerColor),
              ListTile(
                title: Text(
                  L10n.of(context)!.whoIsAllowedToJoinThisGroup,
                  style: TextStyle(
                    color: Theme.of(context).colorScheme.secondary,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
              for (final joinRule in JoinRules.values)
                RadioListTile<JoinRules>.adaptive(
                  title: Text(
                    joinRule.localizedString(L10n.of(context)!),
                  ),
                  value: joinRule,
                  groupValue: room.joinRules,
                  onChanged:
                      controller.joinRulesLoading || !room.canChangeJoinRules
                          ? null
                          : controller.setJoinRule,
                ),
              Divider(color: Theme.of(context).dividerColor),
              if ({JoinRules.public, JoinRules.knock}
                  .contains(room.joinRules)) ...[
                ListTile(
                  title: Text(
                    L10n.of(context)!.areGuestsAllowedToJoin,
                    style: TextStyle(
                      color: Theme.of(context).colorScheme.secondary,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                ),
                for (final guestAccess in GuestAccess.values)
                  RadioListTile<GuestAccess>.adaptive(
                    title: Text(
                      guestAccess
                          .getLocalizedString(MatrixLocals(L10n.of(context)!)),
                    ),
                    value: guestAccess,
                    groupValue: room.guestAccess,
                    onChanged: controller.guestAccessLoading ||
                            !room.canChangeGuestAccess
                        ? null
                        : controller.setGuestAccess,
                  ),
                Divider(color: Theme.of(context).dividerColor),
                FutureBuilder(
                  future: room.client.getRoomVisibilityOnDirectory(room.id),
                  builder: (context, snapshot) => SwitchListTile.adaptive(
                    value: snapshot.data == Visibility.public,
                    title: Text(
                      L10n.of(context)!.chatCanBeDiscoveredViaSearchOnServer(
                        room.client.userID!.domain!,
                      ),
                    ),
                    onChanged: controller.setChatVisibilityOnDirectory,
                  ),
                ),
                ListTile(
                  title: Text(L10n.of(context)!.publicLink),
                  subtitle: room.canonicalAlias.isEmpty
                      ? Text(
                          L10n.of(context)!.noPublicLinkHasBeenCreatedYet,
                          style: const TextStyle(
                            fontStyle: FontStyle.italic,
                          ),
                        )
                      : Text(
                          'https://matrix.to/#/${room.canonicalAlias}',
                          style: TextStyle(
                            decoration: TextDecoration.underline,
                            color: Theme.of(context).colorScheme.primary,
                          ),
                        ),
                  onTap: room.canChangeStateEvent(EventTypes.RoomCanonicalAlias)
                      ? controller.setCanonicalAlias
                      : null,
                  trailing: room.canonicalAlias.isEmpty
                      ? const Padding(
                          padding: EdgeInsets.symmetric(horizontal: 8.0),
                          child: Icon(Icons.add),
                        )
                      : IconButton(
                          icon: Icon(Icons.adaptive.share_outlined),
                          onPressed: () => FluffyShare.share(room.id, context),
                        ),
                ),
              ],
              ListTile(
                title: Text(L10n.of(context)!.globalChatId),
                subtitle: SelectableText(room.id),
                trailing: IconButton(
                  icon: const Icon(Icons.copy_outlined),
                  onPressed: () => FluffyShare.share(room.id, context),
                ),
              ),
              ListTile(
                title: Text(L10n.of(context)!.roomVersion),
                subtitle: SelectableText(
                  room
                          .getState(EventTypes.RoomCreate)!
                          .content
                          .tryGet<String>('room_version') ??
                      'Unknown',
                ),
                trailing: room.canSendEvent(EventTypes.RoomTombstone)
                    ? IconButton(
                        icon: const Icon(Icons.upgrade_outlined),
                        onPressed: controller.updateRoomAction,
                      )
                    : null,
              ),
            ],
          ),
        ),
      ),
    );
  }
}

extension JoinRulesDisplayString on JoinRules {
  String localizedString(L10n l10n) {
    switch (this) {
      case JoinRules.public:
        return l10n.anyoneCanJoin;
      case JoinRules.invite:
        return l10n.invitedUsersOnly;
      case JoinRules.knock:
        return l10n.usersMustKnock;
      case JoinRules.private:
        return l10n.noOneCanJoin;
    }
  }
}