package eu.siacs.conversations.ui;

import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Dialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.util.Pair;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import androidx.activity.OnBackPressedCallback;
import androidx.annotation.MenuRes;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.StringRes;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.widget.PopupMenu;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.databinding.DataBindingUtil;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
import com.google.android.material.color.MaterialColors;
import com.google.android.material.dialog.MaterialAlertDialogBuilder;
import com.google.android.material.textfield.TextInputLayout;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.leinardi.android.speeddial.SpeedDialActionItem;
import com.leinardi.android.speeddial.SpeedDialView;
import de.gultsch.common.MiniUri;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.ListItem;
import eu.siacs.conversations.services.QuickConversationsService;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
import eu.siacs.conversations.ui.adapter.ListItemAdapter;
import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
import eu.siacs.conversations.ui.util.JidDialog;
import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
import eu.siacs.conversations.ui.util.PendingItem;
import eu.siacs.conversations.ui.util.SoftKeyboardUtils;
import eu.siacs.conversations.ui.widget.SwipeRefreshListFragment;
import eu.siacs.conversations.utils.AccountUtils;
import eu.siacs.conversations.utils.CharSequences;
import eu.siacs.conversations.xmpp.Jid;
import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
import eu.siacs.conversations.xmpp.XmppConnection;
import eu.siacs.conversations.xmpp.manager.BlockingManager;
import eu.siacs.conversations.xmpp.manager.BookmarkManager;
import eu.siacs.conversations.xmpp.manager.MultiUserChatManager;
import im.conversations.android.model.Bookmark;
import im.conversations.android.model.DynamicTag;
import im.conversations.android.model.ImmutableBookmark;
import im.conversations.android.xmpp.model.stanza.Presence;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Consumer;

public class StartConversationActivity extends XmppActivity
        implements XmppConnectionService.OnConversationUpdate,
                OnRosterUpdate,
                OnUpdateBlocklist,
                CreatePrivateGroupChatDialog.CreateConferenceDialogListener,
                JoinConferenceDialog.JoinConferenceDialogListener,
                SwipeRefreshLayout.OnRefreshListener,
                CreatePublicChannelDialog.CreatePublicChannelDialogListener {

    private static final String PREF_KEY_CONTACT_INTEGRATION_CONSENT =
            "contact_list_integration_consent";

    public static final String EXTRA_INVITE_URI = "eu.siacs.conversations.invite_uri";

    private final int REQUEST_SYNC_CONTACTS = 0x28cf;
    private final int REQUEST_CREATE_CONFERENCE = 0x39da;
    private final PendingItem<Intent> pendingViewIntent = new PendingItem<>();
    private final PendingItem<String> mInitialSearchValue = new PendingItem<>();
    private final AtomicBoolean oneShotKeyboardSuppress = new AtomicBoolean();
    public int conference_context_id;
    public int contact_context_id;
    private ListPagerAdapter mListPagerAdapter;
    private final List<ListItem> contacts = new ArrayList<>();
    private ListItemAdapter mContactsAdapter;
    private final List<ListItem> conferences = new ArrayList<>();
    private ListItemAdapter mConferenceAdapter;
    private final ArrayList<String> mActivatedAccounts = new ArrayList<>();
    private EditText mSearchEditText;
    private final AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
    private final AtomicBoolean mOpenedFab = new AtomicBoolean(false);
    private boolean mHideOfflineContacts = false;
    private boolean createdByViewIntent = false;
    private final MenuItem.OnActionExpandListener mOnActionExpandListener =
            new MenuItem.OnActionExpandListener() {

                @Override
                public boolean onMenuItemActionExpand(@NonNull final MenuItem item) {
                    mSearchEditText.post(
                            () -> {
                                updateSearchViewHint();
                                mSearchEditText.requestFocus();
                                if (oneShotKeyboardSuppress.compareAndSet(true, false)) {
                                    return;
                                }
                                InputMethodManager imm =
                                        (InputMethodManager)
                                                getSystemService(Context.INPUT_METHOD_SERVICE);
                                if (imm != null) {
                                    imm.showSoftInput(
                                            mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
                                }
                            });
                    if (binding.speedDial.isOpen()) {
                        binding.speedDial.close();
                    }
                    return true;
                }

                @Override
                public boolean onMenuItemActionCollapse(@NonNull final MenuItem item) {
                    SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
                    mSearchEditText.setText("");
                    filter(null);
                    return true;
                }
            };
    private MenuItem mMenuSearchView;
    private final Consumer<DynamicTag> mOnTagClickedListener =
            new Consumer<>() {
                @Override
                public void accept(DynamicTag dynamicTag) {
                    final var searchView = mMenuSearchView;
                    if (searchView == null) {
                        return;
                    }
                    if (dynamicTag instanceof DynamicTag.RosterGroup(String name)) {
                        mMenuSearchView.expandActionView();
                        mSearchEditText.setText("");
                        mSearchEditText.append(name);
                        filter(name);
                    }
                }
            };
    private final OnBackPressedCallback fabBackPressedCallback =
            new OnBackPressedCallback(false) {
                @Override
                public void handleOnBackPressed() {
                    binding.speedDial.close();
                }
            };
    private Pair<Integer, Intent> mPostponedActivityResult;
    private ActivityStartConversationBinding binding;
    private final TextView.OnEditorActionListener mSearchDone =
            new TextView.OnEditorActionListener() {
                @Override
                public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                    int pos = binding.startConversationViewPager.getCurrentItem();
                    if (pos == 0) {
                        if (contacts.size() == 1) {
                            openConversationForContact((Contact) contacts.get(0));
                            return true;
                        } else if (contacts.isEmpty() && conferences.size() == 1) {
                            openConversationsForBookmark((Bookmark) conferences.get(0));
                            return true;
                        }
                    } else {
                        if (conferences.size() == 1) {
                            openConversationsForBookmark((Bookmark) conferences.get(0));
                            return true;
                        } else if (conferences.isEmpty() && contacts.size() == 1) {
                            openConversationForContact((Contact) contacts.get(0));
                            return true;
                        }
                    }
                    SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
                    mListPagerAdapter.requestFocus(pos);
                    return true;
                }
            };

    public static void populateAccountSpinner(
            final Context context,
            final List<String> accounts,
            final AutoCompleteTextView spinner) {
        if (accounts.isEmpty()) {
            ArrayAdapter<String> adapter =
                    new ArrayAdapter<>(
                            context,
                            R.layout.item_autocomplete,
                            Collections.singletonList(context.getString(R.string.no_accounts)));
            adapter.setDropDownViewResource(R.layout.item_autocomplete);
            spinner.setAdapter(adapter);
            spinner.setEnabled(false);
        } else {
            final ArrayAdapter<String> adapter =
                    new ArrayAdapter<>(context, R.layout.item_autocomplete, accounts);
            adapter.setDropDownViewResource(R.layout.item_autocomplete);
            spinner.setAdapter(adapter);
            spinner.setEnabled(true);
            spinner.setText(Iterables.getFirst(accounts, null), false);
        }
    }

    public static void launch(Context context) {
        final Intent intent = new Intent(context, StartConversationActivity.class);
        context.startActivity(intent);
    }

    private static Intent createLauncherIntent(Context context) {
        final Intent intent = new Intent(context, StartConversationActivity.class);
        intent.setAction(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        return intent;
    }

    private static boolean isViewIntent(final Intent i) {
        return i != null
                && (Intent.ACTION_VIEW.equals(i.getAction())
                        || Intent.ACTION_SENDTO.equals(i.getAction())
                        || i.hasExtra(EXTRA_INVITE_URI));
    }

    protected void hideToast() {
        if (mToast != null) {
            mToast.cancel();
        }
    }

    protected void replaceToast(String msg) {
        hideToast();
        mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
        mToast.show();
    }

    @Override
    public void onRosterUpdate() {
        this.refreshUi();
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
        Activities.setStatusAndNavigationBarColors(this, binding.getRoot());
        setSupportActionBar(binding.toolbar);
        configureActionBar(getSupportActionBar());

        inflateFab(binding.speedDial, R.menu.start_conversation_fab_submenu);
        binding.tabLayout.setupWithViewPager(binding.startConversationViewPager);
        binding.startConversationViewPager.addOnPageChangeListener(
                new ViewPager.SimpleOnPageChangeListener() {
                    @Override
                    public void onPageSelected(int position) {
                        updateSearchViewHint();
                    }
                });
        mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
        binding.startConversationViewPager.setAdapter(mListPagerAdapter);

        mConferenceAdapter = new ListItemAdapter(this, conferences, this.mOnTagClickedListener);
        mContactsAdapter = new ListItemAdapter(this, contacts, this.mOnTagClickedListener);

        final SharedPreferences preferences = getPreferences();

        this.mHideOfflineContacts =
                QuickConversationsService.isConversations()
                        && preferences.getBoolean("hide_offline", false);

        final boolean startSearching =
                preferences.getBoolean(
                        "start_searching", getResources().getBoolean(R.bool.start_searching));

        final Intent intent;
        if (savedInstanceState == null) {
            intent = getIntent();
        } else {
            createdByViewIntent = savedInstanceState.getBoolean("created_by_view_intent", false);
            final String search = savedInstanceState.getString("search");
            if (search != null) {
                mInitialSearchValue.push(search);
            }
            intent = savedInstanceState.getParcelable("intent");
        }

        if (isViewIntent(intent)) {
            pendingViewIntent.push(intent);
            createdByViewIntent = true;
            setIntent(createLauncherIntent(this));
        } else if (startSearching && mInitialSearchValue.peek() == null) {
            mInitialSearchValue.push("");
        }
        mRequestedContactsPermission.set(
                savedInstanceState != null
                        && savedInstanceState.getBoolean("requested_contacts_permission", false));
        mOpenedFab.set(
                savedInstanceState != null && savedInstanceState.getBoolean("opened_fab", false));
        binding.speedDial.setOnChangeListener(
                new SpeedDialView.OnChangeListener() {
                    @Override
                    public boolean onMainActionSelected() {
                        return false;
                    }

                    @Override
                    public void onToggleChanged(boolean isOpen) {
                        Log.d(Config.LOGTAG, "onToggleChanged(" + isOpen + ")");
                        fabBackPressedCallback.setEnabled(isOpen);
                    }
                });
        binding.speedDial.setOnActionSelectedListener(
                actionItem -> {
                    final String searchString =
                            mSearchEditText != null ? mSearchEditText.getText().toString() : null;
                    final String prefilled;
                    if (isValidJid(searchString)) {
                        prefilled = Jid.of(searchString).toString();
                    } else {
                        prefilled = null;
                    }
                    switch (actionItem.getId()) {
                        case R.id.discover_public_channels:
                            if (QuickConversationsService.isPlayStoreFlavor()) {
                                throw new IllegalStateException(
                                        "Channel discovery is not available on Google Play flavor");
                            } else {
                                startActivity(new Intent(this, ChannelDiscoveryActivity.class));
                            }
                            break;
                        case R.id.join_public_channel:
                            showJoinConferenceDialog(prefilled);
                            break;
                        case R.id.create_private_group_chat:
                            showCreatePrivateGroupChatDialog();
                            break;
                        case R.id.create_public_channel:
                            showPublicChannelDialog();
                            break;
                        case R.id.create_contact:
                            showCreateContactDialog(prefilled, null);
                            break;
                    }
                    return false;
                });
        final var backDispatcher = this.getOnBackPressedDispatcher();
        backDispatcher.addCallback(this, this.fabBackPressedCallback);
    }

    private void inflateFab(final SpeedDialView speedDialView, final @MenuRes int menuRes) {
        speedDialView.clearActionItems();
        final PopupMenu popupMenu = new PopupMenu(this, new View(this));
        popupMenu.inflate(menuRes);
        final Menu menu = popupMenu.getMenu();
        for (int i = 0; i < menu.size(); i++) {
            final MenuItem menuItem = menu.getItem(i);
            if (QuickConversationsService.isPlayStoreFlavor()
                    && menuItem.getItemId() == R.id.discover_public_channels) {
                continue;
            }
            final SpeedDialActionItem actionItem =
                    new SpeedDialActionItem.Builder(menuItem.getItemId(), menuItem.getIcon())
                            .setLabel(
                                    menuItem.getTitle() != null
                                            ? menuItem.getTitle().toString()
                                            : null)
                            .setFabImageTintColor(
                                    MaterialColors.getColor(
                                            speedDialView,
                                            com.google.android.material.R.attr.colorOnSurface))
                            .setFabBackgroundColor(
                                    MaterialColors.getColor(
                                            speedDialView,
                                            com.google.android.material.R.attr
                                                    .colorSurfaceContainerHighest))
                            .create();
            speedDialView.addActionItem(actionItem);
        }
        speedDialView.setContentDescription(
                getString(R.string.add_contact_or_create_or_join_group_chat));
    }

    public static boolean isValidJid(final String input) {
        try {
            final Jid jid = Jid.ofUserInput(input);
            return !jid.isDomainJid();
        } catch (final IllegalArgumentException e) {
            return false;
        }
    }

    @Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        Intent pendingIntent = pendingViewIntent.peek();
        savedInstanceState.putParcelable(
                "intent", pendingIntent != null ? pendingIntent : getIntent());
        savedInstanceState.putBoolean(
                "requested_contacts_permission", mRequestedContactsPermission.get());
        savedInstanceState.putBoolean("opened_fab", mOpenedFab.get());
        savedInstanceState.putBoolean("created_by_view_intent", createdByViewIntent);
        if (mMenuSearchView != null && mMenuSearchView.isActionViewExpanded()) {
            savedInstanceState.putString(
                    "search",
                    mSearchEditText != null ? mSearchEditText.getText().toString() : null);
        }
        super.onSaveInstanceState(savedInstanceState);
    }

    @Override
    public void onStart() {
        super.onStart();
        mConferenceAdapter.refreshSettings();
        mContactsAdapter.refreshSettings();
        if (pendingViewIntent.peek() == null) {
            if (askForContactsPermissions()) {
                return;
            }
            requestNotificationPermissionIfNeeded();
        }
    }

    private void requestNotificationPermissionIfNeeded() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU
                && ActivityCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS)
                        != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(
                    new String[] {Manifest.permission.POST_NOTIFICATIONS},
                    REQUEST_POST_NOTIFICATION);
        }
    }

    @Override
    public void onNewIntent(final Intent intent) {
        super.onNewIntent(intent);
        if (xmppConnectionServiceBound) {
            processViewIntent(intent);
        } else {
            pendingViewIntent.push(intent);
        }
        setIntent(createLauncherIntent(this));
    }

    protected void openConversationForContact(int position) {
        Contact contact = (Contact) contacts.get(position);
        openConversationForContact(contact);
    }

    protected void openConversationForContact(Contact contact) {
        Conversation conversation =
                xmppConnectionService.findOrCreateConversation(
                        contact.getAccount(), contact.getAddress(), false, true);
        SoftKeyboardUtils.hideSoftKeyboard(this);
        switchToConversation(conversation);
    }

    protected void openConversationForBookmark(int position) {
        Bookmark bookmark = (Bookmark) conferences.get(position);
        openConversationsForBookmark(bookmark);
    }

    protected void shareBookmarkUri() {
        shareBookmarkUri(conference_context_id);
    }

    protected void shareBookmarkUri(int position) {
        Bookmark bookmark = (Bookmark) conferences.get(position);
        shareAsChannel(this, bookmark.getAddress().asBareJid().toString());
    }

    public static void shareAsChannel(final Context context, final String address) {
        Intent shareIntent = new Intent();
        shareIntent.setAction(Intent.ACTION_SEND);
        shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + address + "?join");
        shareIntent.setType("text/plain");
        try {
            context.startActivity(
                    Intent.createChooser(shareIntent, context.getText(R.string.share_uri_with)));
        } catch (ActivityNotFoundException e) {
            Toast.makeText(context, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT)
                    .show();
        }
    }

    protected void openDetailsForContact() {
        int position = contact_context_id;
        Contact contact = (Contact) contacts.get(position);
        switchToContactDetails(contact);
    }

    protected void showQrForContact() {
        int position = contact_context_id;
        Contact contact = (Contact) contacts.get(position);
        final var uri = new MiniUri.Xmpp(contact.getAddress());
        showQrCode(uri);
    }

    protected void toggleContactBlock() {
        final int position = contact_context_id;
        BlockContactDialog.show(this, (Contact) contacts.get(position));
    }

    protected void deleteContact() {
        final int position = contact_context_id;
        final Contact contact = (Contact) contacts.get(position);
        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this);
        builder.setNegativeButton(R.string.cancel, null);
        builder.setTitle(R.string.action_delete_contact);
        builder.setMessage(
                JidDialog.style(
                        this, R.string.remove_contact_text, contact.getAddress().toString()));
        builder.setPositiveButton(
                R.string.delete,
                (dialog, which) -> {
                    xmppConnectionService.deleteContactOnServer(contact);
                    filter(mSearchEditText.getText().toString());
                });
        builder.create().show();
    }

    protected void deleteConference() {
        final int position = conference_context_id;
        final Bookmark bookmark = (Bookmark) conferences.get(position);
        final var conversation = xmppConnectionService.find(bookmark);
        final boolean hasConversation = conversation != null;
        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this);
        builder.setNegativeButton(R.string.cancel, null);
        builder.setTitle(R.string.delete_bookmark);
        if (hasConversation) {
            builder.setMessage(
                    JidDialog.style(
                            this,
                            R.string.remove_bookmark_and_close,
                            bookmark.getAddress().toString()));
        } else {
            builder.setMessage(
                    JidDialog.style(
                            this, R.string.remove_bookmark, bookmark.getAddress().toString()));
        }
        builder.setPositiveButton(
                hasConversation ? R.string.delete_and_close : R.string.delete,
                (dialog, which) -> {
                    final Account account = bookmark.getAccount();
                    xmppConnectionService.deleteBookmark(account, bookmark);
                    if (conversation != null) {
                        xmppConnectionService.archiveConversation(conversation);
                    }
                    filter(mSearchEditText.getText().toString());
                });
        builder.create().show();
    }

    @SuppressLint("InflateParams")
    protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);
        EnterJidDialog dialog =
                EnterJidDialog.newInstance(
                        mActivatedAccounts,
                        getString(R.string.add_contact),
                        getString(R.string.add),
                        prefilledJid,
                        invite == null ? null : invite.account,
                        invite == null || !invite.uri.hasOmemoFingerprints(),
                        true);

        dialog.setOnEnterJidDialogPositiveListener(
                (accountJid, contactJid) -> {
                    if (!xmppConnectionServiceBound) {
                        return false;
                    }

                    final Account account = xmppConnectionService.findAccountByJid(accountJid);
                    if (account == null) {
                        return true;
                    }

                    final Contact contact = account.getRoster().getContact(contactJid);
                    if (invite != null && invite.uri.getName() != null) {
                        contact.setServerName(invite.uri.getName());
                    }
                    if (contact.isSelf()) {
                        switchToConversation(contact);
                        return true;
                    } else if (contact.showInRoster()) {
                        throw new EnterJidDialog.JidError(
                                getString(R.string.contact_already_exists));
                    } else {
                        final String preAuth =
                                invite == null
                                        ? null
                                        : invite.uri.getParameter(MiniUri.Xmpp.PARAMETER_PRE_AUTH);
                        xmppConnectionService.createContact(contact, preAuth);
                        if (invite != null && invite.uri.hasOmemoFingerprints()) {
                            xmppConnectionService.verifyFingerprints(
                                    contact, invite.uri.getOmemoFingerprints());
                        }
                        switchToConversationDoNotAppend(
                                contact, invite == null ? null : invite.uri.getBody());
                        return true;
                    }
                });
        dialog.show(ft, FRAGMENT_TAG_DIALOG);
    }

    @SuppressLint("InflateParams")
    protected void showJoinConferenceDialog(final String prefilledJid) {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);
        JoinConferenceDialog joinConferenceFragment =
                JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
        joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
    }

    private void showCreatePrivateGroupChatDialog() {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);
        CreatePrivateGroupChatDialog createConferenceFragment =
                CreatePrivateGroupChatDialog.newInstance(mActivatedAccounts);
        createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
    }

    private void showPublicChannelDialog() {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);
        CreatePublicChannelDialog dialog =
                CreatePublicChannelDialog.newInstance(mActivatedAccounts);
        dialog.show(ft, FRAGMENT_TAG_DIALOG);
    }

    public static Account getSelectedAccount(
            final Context context, final AutoCompleteTextView spinner) {
        if (spinner == null || !spinner.isEnabled()) {
            return null;
        }
        if (context instanceof XmppActivity) {
            final Jid jid;
            try {
                jid = Jid.of(spinner.getText().toString());
            } catch (final IllegalArgumentException e) {
                return null;
            }
            final XmppConnectionService service = ((XmppActivity) context).xmppConnectionService;
            if (service == null) {
                return null;
            }
            return service.findAccountByJid(jid);
        } else {
            return null;
        }
    }

    protected void switchToConversation(Contact contact) {
        Conversation conversation =
                xmppConnectionService.findOrCreateConversation(
                        contact.getAccount(), contact.getAddress(), false, true);
        switchToConversation(conversation);
    }

    protected void switchToConversationDoNotAppend(Contact contact, String body) {
        Conversation conversation =
                xmppConnectionService.findOrCreateConversation(
                        contact.getAccount(), contact.getAddress(), false, true);
        switchToConversationDoNotAppend(conversation, body);
    }

    @Override
    public void invalidateOptionsMenu() {
        boolean isExpanded = mMenuSearchView != null && mMenuSearchView.isActionViewExpanded();
        String text = mSearchEditText != null ? mSearchEditText.getText().toString() : "";
        if (isExpanded) {
            mInitialSearchValue.push(text);
            oneShotKeyboardSuppress.set(true);
        }
        super.invalidateOptionsMenu();
    }

    private void updateSearchViewHint() {
        if (binding == null || mSearchEditText == null) {
            return;
        }
        if (binding.startConversationViewPager.getCurrentItem() == 0) {
            mSearchEditText.setHint(R.string.search_contacts);
            mSearchEditText.setContentDescription(getString(R.string.search_contacts));
        } else {
            mSearchEditText.setHint(R.string.search_group_chats);
            mSearchEditText.setContentDescription(getString(R.string.search_group_chats));
        }
    }

    @Override
    public boolean onCreateOptionsMenu(final Menu menu) {
        getMenuInflater().inflate(R.menu.start_conversation, menu);
        AccountUtils.showHideMenuItems(menu);
        final MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
        if (QuickConversationsService.isQuicksy()) {
            menuHideOffline.setVisible(false);
        } else {
            menuHideOffline.setVisible(true);
            menuHideOffline.setChecked(this.mHideOfflineContacts);
        }
        mMenuSearchView = menu.findItem(R.id.action_search);
        mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
        View mSearchView = mMenuSearchView.getActionView();
        mSearchEditText = mSearchView.findViewById(R.id.search_field);
        mSearchEditText.addTextChangedListener(new TextChangeListener(this::filter));
        mSearchEditText.setOnEditorActionListener(mSearchDone);
        String initialSearchValue = mInitialSearchValue.pop();
        if (initialSearchValue != null) {
            mMenuSearchView.expandActionView();
            mSearchEditText.append(initialSearchValue);
            filter(initialSearchValue);
        }
        updateSearchViewHint();
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
            return false;
        }
        switch (item.getItemId()) {
            case android.R.id.home:
                finish();
                return true;
            case R.id.action_hide_offline:
                mHideOfflineContacts = !item.isChecked();
                getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).apply();
                if (mSearchEditText != null) {
                    filter(mSearchEditText.getText().toString());
                }
                invalidateOptionsMenu();
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
            openSearch();
            return true;
        }
        int c = event.getUnicodeChar();
        if (c > 32) {
            if (mSearchEditText != null && !mSearchEditText.isFocused()) {
                openSearch();
                mSearchEditText.append(Character.toString((char) c));
                return true;
            }
        }
        return super.onKeyUp(keyCode, event);
    }

    private void openSearch() {
        if (mMenuSearchView != null) {
            mMenuSearchView.expandActionView();
        }
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        if (resultCode == RESULT_OK) {
            if (xmppConnectionServiceBound) {
                this.mPostponedActivityResult = null;
                if (requestCode == REQUEST_CREATE_CONFERENCE) {
                    Account account = extractAccount(intent);
                    final String name =
                            intent.getStringExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME);
                    final List<Jid> addresses = ChooseContactActivity.extractJabberIds(intent);
                    if (account == null || addresses.isEmpty()) {
                        return;
                    }
                    final var future =
                            xmppConnectionService.createAdhocConference(account, name, addresses);
                    Futures.addCallback(future, adhocCallback, ContextCompat.getMainExecutor(this));
                }
            } else {
                this.mPostponedActivityResult = new Pair<>(requestCode, intent);
            }
        }
        super.onActivityResult(requestCode, requestCode, intent);
    }

    private boolean askForContactsPermissions() {
        if (!QuickConversationsService.isContactListIntegration(this)) {
            return false;
        }
        if (checkSelfPermission(Manifest.permission.READ_CONTACTS)
                == PackageManager.PERMISSION_GRANTED) {
            return false;
        }
        if (mRequestedContactsPermission.compareAndSet(false, true)) {
            final ImmutableList.Builder<String> permissionBuilder = new ImmutableList.Builder<>();
            permissionBuilder.add(Manifest.permission.READ_CONTACTS);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                permissionBuilder.add(Manifest.permission.POST_NOTIFICATIONS);
            }
            final String[] permission = permissionBuilder.build().toArray(new String[0]);
            final String consent =
                    PreferenceManager.getDefaultSharedPreferences(getApplicationContext())
                            .getString(PREF_KEY_CONTACT_INTEGRATION_CONSENT, null);
            final boolean requiresConsent =
                    (QuickConversationsService.isQuicksy()
                                    || QuickConversationsService.isPlayStoreFlavor())
                            && !"agreed".equals(consent);
            if (requiresConsent && "declined".equals(consent)) {
                Log.d(
                        Config.LOGTAG,
                        "not asking for contacts permission because consent has been declined");
                return false;
            }
            if (requiresConsent
                    || shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
                final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this);
                final AtomicBoolean requestPermission = new AtomicBoolean(false);
                if (QuickConversationsService.isQuicksy()) {
                    builder.setTitle(R.string.quicksy_wants_your_consent);
                    builder.setMessage(
                            Html.fromHtml(getString(R.string.sync_with_contacts_quicksy_static)));
                } else {
                    builder.setTitle(R.string.sync_with_contacts);
                    builder.setMessage(
                            getString(
                                    R.string.sync_with_contacts_long,
                                    getString(R.string.app_name)));
                }
                @StringRes int confirmButtonText;
                if (requiresConsent) {
                    confirmButtonText = R.string.agree_and_continue;
                } else {
                    confirmButtonText = R.string.next;
                }
                builder.setPositiveButton(
                        confirmButtonText,
                        (dialog, which) -> {
                            if (requiresConsent) {
                                PreferenceManager.getDefaultSharedPreferences(
                                                getApplicationContext())
                                        .edit()
                                        .putString(PREF_KEY_CONTACT_INTEGRATION_CONSENT, "agreed")
                                        .apply();
                            }
                            if (requestPermission.compareAndSet(false, true)) {
                                requestPermissions(permission, REQUEST_SYNC_CONTACTS);
                            }
                        });
                if (requiresConsent) {
                    builder.setNegativeButton(
                            R.string.decline,
                            (dialog, which) ->
                                    PreferenceManager.getDefaultSharedPreferences(
                                                    getApplicationContext())
                                            .edit()
                                            .putString(
                                                    PREF_KEY_CONTACT_INTEGRATION_CONSENT,
                                                    "declined")
                                            .apply());
                } else {
                    builder.setOnDismissListener(
                            dialog -> {
                                if (requestPermission.compareAndSet(false, true)) {
                                    requestPermissions(permission, REQUEST_SYNC_CONTACTS);
                                }
                            });
                }
                builder.setCancelable(requiresConsent);
                final AlertDialog dialog = builder.create();
                dialog.setCanceledOnTouchOutside(requiresConsent);
                dialog.setOnShowListener(
                        dialogInterface -> {
                            final TextView tv = dialog.findViewById(android.R.id.message);
                            if (tv != null) {
                                tv.setMovementMethod(LinkMovementMethod.getInstance());
                            }
                        });
                dialog.show();
            } else {
                requestPermissions(permission, REQUEST_SYNC_CONTACTS);
            }
        }
        return true;
    }

    @Override
    public void onRequestPermissionsResult(
            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (grantResults.length > 0)
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
                    if (QuickConversationsService.isQuicksy()) {
                        setRefreshing(true);
                    }
                    xmppConnectionService.loadPhoneContacts();
                    xmppConnectionService.startContactObserver();
                }
            }
    }

    private void configureHomeButton() {
        final ActionBar actionBar = getSupportActionBar();
        if (actionBar == null) {
            return;
        }
        boolean openConversations = !createdByViewIntent;
        actionBar.setDisplayHomeAsUpEnabled(!isTaskRoot());
    }

    @Override
    protected void onBackendConnected() {
        if (QuickConversationsService.isContactListIntegration(this)
                && (Build.VERSION.SDK_INT < Build.VERSION_CODES.M
                        || checkSelfPermission(Manifest.permission.READ_CONTACTS)
                                == PackageManager.PERMISSION_GRANTED)) {
            xmppConnectionService.getQuickConversationsService().considerSyncBackground(false);
        }
        if (mPostponedActivityResult != null) {
            onActivityResult(
                    mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
            this.mPostponedActivityResult = null;
        }
        this.mActivatedAccounts.clear();
        this.mActivatedAccounts.addAll(AccountUtils.getEnabledAccounts(xmppConnectionService));
        configureHomeButton();
        Intent intent = pendingViewIntent.pop();
        if (intent != null && processViewIntent(intent)) {
            filter(null);
        } else {
            if (mSearchEditText != null) {
                filter(mSearchEditText.getText().toString());
            } else {
                filter(null);
            }
        }
        final var fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
        if (fragment instanceof OnBackendConnected callback) {
            Log.d(Config.LOGTAG, "calling on backend connected on dialog");
            callback.onBackendConnected();
        }
        if (QuickConversationsService.isQuicksy()) {
            setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
        }
        if (QuickConversationsService.isConversations()
                && AccountUtils.hasEnabledAccounts(xmppConnectionService)
                && this.contacts.isEmpty()
                && this.conferences.isEmpty()
                && mOpenedFab.compareAndSet(false, true)) {
            binding.speedDial.open();
        }
    }

    protected boolean processViewIntent(@NonNull Intent intent) {
        final var inviteUri = MiniUri.getOrNull(intent.getStringExtra(EXTRA_INVITE_URI));
        Log.d(Config.LOGTAG, "inviteUri: " + inviteUri);
        if (inviteUri instanceof MiniUri.Xmpp xmpp && xmpp.isAddress()) {
            final Invite invite =
                    new Invite(xmpp, intent.getStringExtra(EXTRA_ACCOUNT), false, false);
            return handleJid(invite);
        }
        final String action = intent.getAction();
        if (action == null) {
            return false;
        }
        switch (action) {
            case Intent.ACTION_SENDTO:
            case Intent.ACTION_VIEW:
                final var uri = MiniUri.getOrNull(intent.getData());
                if (uri instanceof MiniUri.Xmpp xmpp && xmpp.isAddress()) {
                    final var invite =
                            new Invite(
                                    xmpp,
                                    intent.getStringExtra(EXTRA_ACCOUNT),
                                    intent.getBooleanExtra("scanned", false),
                                    intent.getBooleanExtra("force_dialog", false));
                    return handleJid(invite);
                } else {
                    return false;
                }
        }
        return false;
    }

    private boolean handleJid(final Invite invite) {
        List<Contact> contacts =
                xmppConnectionService.findContacts(invite.uri.asJid(), invite.account);
        if (invite.uri.isAction(MiniUri.Xmpp.ACTION_JOIN)) {
            Conversation muc = xmppConnectionService.findFirstMuc(invite.uri.asJid());
            if (muc != null && !invite.forceDialog) {
                switchToConversationDoNotAppend(muc, invite.uri.getBody());
                return true;
            } else {
                showJoinConferenceDialog(invite.uri.asJid().asBareJid().toString());
                return false;
            }
        } else if (contacts.isEmpty()) {
            showCreateContactDialog(invite.uri.asJid().toString(), invite);
            return false;
        } else if (contacts.size() == 1) {
            Contact contact = contacts.get(0);
            if (!invite.scanned() && invite.uri.hasOmemoFingerprints()) {
                displayVerificationWarningDialog(contact, invite);
            } else {
                if (invite.uri.hasOmemoFingerprints()) {
                    if (xmppConnectionService.verifyFingerprints(
                            contact, invite.uri.getOmemoFingerprints())) {
                        Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT)
                                .show();
                    }
                }
                if (invite.account != null) {
                    xmppConnectionService.getShortcutService().report(contact);
                }
                switchToConversationDoNotAppend(contact, invite.uri.getBody());
            }
            return true;
        } else {
            if (mMenuSearchView != null) {
                mMenuSearchView.expandActionView();
                mSearchEditText.setText("");
                mSearchEditText.append(invite.uri.asJid().toString());
                filter(invite.uri.asJid().toString());
            } else {
                mInitialSearchValue.push(invite.uri.asJid().toString());
            }
            return true;
        }
    }

    private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this);
        builder.setTitle(R.string.verify_omemo_keys);
        View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
        final CheckBox isTrustedSource = view.findViewById(R.id.trusted_source);
        TextView warning = view.findViewById(R.id.warning);
        warning.setText(
                JidDialog.style(
                        this,
                        R.string.verifying_omemo_keys_trusted_source,
                        contact.getAddress().asBareJid().toString(),
                        contact.getDisplayName()));
        builder.setView(view);
        builder.setPositiveButton(
                R.string.confirm,
                (dialog, which) -> {
                    if (isTrustedSource.isChecked() && invite.uri.hasOmemoFingerprints()) {
                        xmppConnectionService.verifyFingerprints(
                                contact, invite.uri.getOmemoFingerprints());
                    }
                    switchToConversationDoNotAppend(contact, invite.uri.getBody());
                });
        builder.setNegativeButton(
                R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
        AlertDialog dialog = builder.create();
        dialog.setCanceledOnTouchOutside(false);
        dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
        dialog.show();
    }

    protected void filter(final String needle) {
        if (xmppConnectionServiceBound) {
            this.filterContacts(needle);
            this.filterConferences(needle);
        }
    }

    protected void filterContacts(final String needle) {
        this.contacts.clear();
        final List<Account> accounts = xmppConnectionService.getAccounts();
        final var showOffline = !this.mHideOfflineContacts;
        for (final Account account : accounts) {
            if (account.isEnabled()) {
                for (Contact contact : account.getRoster().getContacts()) {
                    Presence.Availability s = contact.getShownStatus();
                    if (contact.showInContactList()
                            && contact.match(needle)
                            && (showOffline || s.compareTo(Presence.Availability.OFFLINE) < 0)) {
                        this.contacts.add(contact);
                    }
                }
            }
        }
        Collections.sort(this.contacts);
        mContactsAdapter.notifyDataSetChanged();
    }

    protected void filterConferences(final String needle) {
        this.conferences.clear();
        for (final Account account : xmppConnectionService.getAccounts()) {
            if (account.isEnabled()) {
                for (final Bookmark bookmark :
                        account.getXmppConnection()
                                .getManager(BookmarkManager.class)
                                .getBookmarks()) {
                    if (bookmark.match(needle)) {
                        this.conferences.add(bookmark);
                    }
                }
            }
        }
        Collections.sort(this.conferences);
        mConferenceAdapter.notifyDataSetChanged();
    }

    @Override
    public void OnUpdateBlocklist(final Status status) {
        refreshUi();
    }

    @Override
    protected void refreshUiReal() {
        if (mSearchEditText != null) {
            filter(mSearchEditText.getText().toString());
        }
        configureHomeButton();
        if (QuickConversationsService.isQuicksy()) {
            setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
        }
    }

    @Override
    public void onCreateDialogPositiveClick(AutoCompleteTextView spinner, String name) {
        if (!xmppConnectionServiceBound) {
            return;
        }
        final Account account = getSelectedAccount(this, spinner);
        if (account == null) {
            return;
        }
        Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
        intent.putExtra(ChooseContactActivity.EXTRA_SHOW_ENTER_JID, false);
        intent.putExtra(ChooseContactActivity.EXTRA_SELECT_MULTIPLE, true);
        intent.putExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME, name.trim());
        intent.putExtra(
                ChooseContactActivity.EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
        intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
        startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
    }

    @Override
    public void onJoinDialogPositiveClick(
            final Dialog dialog,
            final AutoCompleteTextView spinner,
            final TextInputLayout layout,
            final AutoCompleteTextView jid) {
        if (!xmppConnectionServiceBound) {
            return;
        }
        final Account account = getSelectedAccount(this, spinner);
        if (account == null) {
            return;
        }
        final String input = CharSequences.nullToEmpty(jid.getText()).trim();
        final var asUri = MiniUri.getXmppUriOrNull(input);
        final Jid conferenceJid;
        if (asUri != null && asUri.isAddress() && asUri.isAction(MiniUri.Xmpp.ACTION_JOIN)) {
            conferenceJid = asUri.asJid();
        } else {
            try {
                conferenceJid = Jid.ofUserInput(input);
            } catch (final IllegalArgumentException e) {
                layout.setError(getString(R.string.invalid_jid));
                return;
            }
        }
        final var existingBookmark =
                account.getXmppConnection()
                        .getManager(BookmarkManager.class)
                        .getBookmark(conferenceJid);
        if (existingBookmark != null) {
            openConversationsForBookmark(existingBookmark);
        } else {
            final String nick = Bookmark.nickOfAddress(account, conferenceJid);
            final var bookmark =
                    ImmutableBookmark.builder()
                            .account(account)
                            .address(conferenceJid.asBareJid())
                            .nick(nick)
                            .isAutoJoin(true)
                            .build();
            xmppConnectionService.createBookmark(account, bookmark);
            final Conversation conversation =
                    xmppConnectionService.findOrCreateConversation(
                            account, conferenceJid, true, true, true);
            switchToConversation(conversation);
        }
        dialog.dismiss();
    }

    @Override
    public void onConversationUpdate() {
        refreshUi();
    }

    @Override
    public void onRefresh() {
        Log.d(Config.LOGTAG, "user requested to refresh");
        if (QuickConversationsService.isQuicksy() && xmppConnectionService != null) {
            xmppConnectionService.getQuickConversationsService().considerSyncBackground(true);
        }
    }

    private void setRefreshing(boolean refreshing) {
        MyListFragment fragment = (MyListFragment) mListPagerAdapter.getItem(0);
        if (fragment != null) {
            fragment.setRefreshing(refreshing);
        }
    }

    @Override
    public void onCreatePublicChannel(Account account, String name, Jid address) {
        mToast = Toast.makeText(this, R.string.creating_channel, Toast.LENGTH_LONG);
        mToast.show();
        final var future =
                account.getXmppConnection()
                        .getManager(MultiUserChatManager.class)
                        .createPublicChannel(address, name);
        Futures.addCallback(
                future,
                new FutureCallback<>() {
                    @Override
                    public void onSuccess(final Conversation conversation) {
                        hideToast();
                        switchToConversation(conversation);
                    }

                    @Override
                    public void onFailure(@NonNull Throwable t) {
                        Log.d(Config.LOGTAG, "could not create channel", t);
                        replaceToast(getString(R.string.unable_to_set_channel_configuration));
                        // creation failed. this most likely means it existed. we can join it anyway
                        // if we ever decide not to join it the createPublicChannel call needs to
                        // archive it
                        final var conversation = xmppConnectionService.find(account, address);
                        if (conversation != null) {
                            switchToConversation(conversation);
                        }
                    }
                },
                ContextCompat.getMainExecutor(this));
    }

    public static class MyListFragment extends SwipeRefreshListFragment {
        private AdapterView.OnItemClickListener mOnItemClickListener;
        private int mResContextMenu;

        public void setContextMenu(final int res) {
            this.mResContextMenu = res;
        }

        @Override
        public void onListItemClick(
                final ListView l, final View v, final int position, final long id) {
            if (mOnItemClickListener != null) {
                mOnItemClickListener.onItemClick(l, v, position, id);
            }
        }

        public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
            this.mOnItemClickListener = l;
        }

        @Override
        public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
            super.onViewCreated(view, savedInstanceState);
            registerForContextMenu(getListView());
            getListView().setFastScrollEnabled(true);
            getListView().setDivider(null);
            getListView().setDividerHeight(0);
        }

        @Override
        public void onCreateContextMenu(
                @NonNull final ContextMenu menu,
                @NonNull final View v,
                final ContextMenuInfo menuInfo) {
            super.onCreateContextMenu(menu, v, menuInfo);
            final StartConversationActivity activity = (StartConversationActivity) getActivity();
            if (activity == null) {
                return;
            }
            activity.getMenuInflater().inflate(mResContextMenu, menu);
            final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
            if (mResContextMenu == R.menu.conference_context) {
                activity.conference_context_id = acmi.position;
                final Bookmark bookmark = (Bookmark) activity.conferences.get(acmi.position);
                final Conversation conversation = activity.xmppConnectionService.find(bookmark);
                final MenuItem share = menu.findItem(R.id.context_share_uri);
                final MenuItem delete = menu.findItem(R.id.context_delete_conference);
                if (conversation != null) {
                    delete.setTitle(R.string.delete_and_close);
                } else {
                    delete.setTitle(R.string.delete_bookmark);
                }
                share.setVisible(conversation == null || !conversation.isPrivateAndNonAnonymous());
            } else if (mResContextMenu == R.menu.contact_context) {
                activity.contact_context_id = acmi.position;
                final Contact contact = (Contact) activity.contacts.get(acmi.position);
                final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
                final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
                final MenuItem deleteContactMenuItem = menu.findItem(R.id.context_delete_contact);
                if (contact.isSelf()) {
                    showContactDetailsItem.setVisible(false);
                }
                deleteContactMenuItem.setVisible(
                        contact.showInRoster()
                                && !contact.getOption(Contact.Options.SYNCED_VIA_OTHER));
                final XmppConnection xmpp = contact.getAccount().getXmppConnection();
                if (xmpp != null
                        && xmpp.getManager(BlockingManager.class).hasFeature()
                        && !contact.isSelf()) {
                    if (contact.isBlocked()) {
                        blockUnblockItem.setTitle(R.string.unblock_contact);
                    } else {
                        blockUnblockItem.setTitle(R.string.block_contact);
                    }
                } else {
                    blockUnblockItem.setVisible(false);
                }
            }
        }

        @Override
        public boolean onContextItemSelected(final MenuItem item) {
            StartConversationActivity activity = (StartConversationActivity) getActivity();
            if (activity == null) {
                return true;
            }
            switch (item.getItemId()) {
                case R.id.context_contact_details:
                    activity.openDetailsForContact();
                    break;
                case R.id.context_show_qr:
                    activity.showQrForContact();
                    break;
                case R.id.context_contact_block_unblock:
                    activity.toggleContactBlock();
                    break;
                case R.id.context_delete_contact:
                    activity.deleteContact();
                    break;
                case R.id.context_share_uri:
                    activity.shareBookmarkUri();
                    break;
                case R.id.context_delete_conference:
                    activity.deleteConference();
            }
            return true;
        }
    }

    public class ListPagerAdapter extends PagerAdapter {
        private final FragmentManager fragmentManager;
        private final MyListFragment[] fragments;

        ListPagerAdapter(FragmentManager fm) {
            fragmentManager = fm;
            fragments = new MyListFragment[2];
        }

        public void requestFocus(int pos) {
            if (fragments.length > pos) {
                fragments[pos].getListView().requestFocus();
            }
        }

        @Override
        public void destroyItem(
                @NonNull ViewGroup container, int position, @NonNull Object object) {
            FragmentTransaction trans = fragmentManager.beginTransaction();
            trans.remove(fragments[position]);
            trans.commit();
            fragments[position] = null;
        }

        @NonNull
        @Override
        public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
            final Fragment fragment = getItem(position);
            final FragmentTransaction trans = fragmentManager.beginTransaction();
            trans.add(container.getId(), fragment, "fragment:" + position);
            try {
                trans.commit();
            } catch (IllegalStateException e) {
                // ignore
            }
            return fragment;
        }

        @Override
        public int getCount() {
            return fragments.length;
        }

        @Override
        public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
            return ((Fragment) fragment).getView() == view;
        }

        @Nullable
        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return getResources().getString(R.string.contacts);
                case 1:
                    return getResources().getString(R.string.group_chats);
                default:
                    return super.getPageTitle(position);
            }
        }

        Fragment getItem(int position) {
            if (fragments[position] == null) {
                final MyListFragment listFragment = new MyListFragment();
                if (position == 1) {
                    listFragment.setListAdapter(mConferenceAdapter);
                    listFragment.setContextMenu(R.menu.conference_context);
                    listFragment.setOnListItemClickListener(
                            (arg0, arg1, p, arg3) -> openConversationForBookmark(p));
                } else {
                    listFragment.setListAdapter(mContactsAdapter);
                    listFragment.setContextMenu(R.menu.contact_context);
                    listFragment.setOnListItemClickListener(
                            (arg0, arg1, p, arg3) -> openConversationForContact(p));
                    if (QuickConversationsService.isQuicksy()) {
                        listFragment.setOnRefreshListener(StartConversationActivity.this);
                    }
                }
                fragments[position] = listFragment;
            }
            return fragments[position];
        }
    }

    public static void addInviteUri(final Intent to, final BaseActivity activity) {
        final var source = activity.getIntent();
        if (source == null || !source.hasExtra(EXTRA_INVITE_URI)) {
            return;
        }
        final var uri = MiniUri.getXmppUriOrNull(source.getStringExtra(EXTRA_INVITE_URI));
        if (uri == null) {
            return;
        }
        Log.d(Config.LOGTAG, "dragging on invite uri: " + uri.asUri());
        to.putExtra(EXTRA_INVITE_URI, uri.asUri().toString());
    }

    public static Intent startOrConversationsActivity(
            final BaseActivity baseActivity, @Nullable final Account account) {
        final var currentIntent = baseActivity.getIntent();
        final MiniUri.Xmpp invite;
        if (currentIntent != null) {
            invite = MiniUri.getXmppUriOrNull(currentIntent.getStringExtra(EXTRA_INVITE_URI));
        } else {
            invite = null;
        }
        final Intent intent;
        if (invite == null || account == null) {
            intent = new Intent(baseActivity, ConversationsActivity.class);
        } else {
            intent = new Intent(baseActivity, StartConversationActivity.class);
            Log.d(Config.LOGTAG, "dragging on invite uri: " + invite.asUri());
            intent.putExtra(EXTRA_INVITE_URI, invite.asUri().toString());
            intent.putExtra(EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
        }
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        return intent;
    }

    public record Invite(MiniUri.Xmpp uri, String account, boolean scanned, boolean forceDialog) {}
}
