/*
 * This is the source code of Telegram for Android v. 3.x.x.
 * It is licensed under GNU GPL v. 2 or later.
 * You should have received a copy of the license in this archive (see LICENSE).
 *
 * Copyright Nikolai Kudashov, 2013-2015.
 */

package org.telegram.ui;

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.FrameLayout;
import android.widget.ListView;

import org.telegram.messenger.AndroidUtilities;
import org.telegram.messenger.ContactsController;
import org.telegram.messenger.LocaleController;
import org.telegram.messenger.NotificationCenter;
import org.telegram.messenger.FileLog;
import org.telegram.messenger.R;
import org.telegram.tgnet.ConnectionsManager;
import org.telegram.tgnet.RequestDelegate;
import org.telegram.tgnet.TLObject;
import org.telegram.tgnet.TLRPC;
import org.telegram.messenger.UserConfig;
import org.telegram.ui.ActionBar.ActionBar;
import org.telegram.ui.ActionBar.BaseFragment;
import org.telegram.ui.Adapters.BaseFragmentAdapter;
import org.telegram.ui.Cells.HeaderCell;
import org.telegram.ui.Cells.TextInfoPrivacyCell;
import org.telegram.ui.Cells.TextSettingsCell;
import org.telegram.ui.Components.LayoutHelper;

import java.util.ArrayList;

public class PrivacySettingsActivity extends BaseFragment implements NotificationCenter.NotificationCenterDelegate {

    private ListAdapter listAdapter;

    private int privacySectionRow;
    private int blockedRow;
    private int lastSeenRow;
    private int lastSeenDetailRow;
    private int securitySectionRow;
    private int sessionsRow;
    private int passwordRow;
    private int passcodeRow;
    private int sessionsDetailRow;
    private int deleteAccountSectionRow;
    private int deleteAccountRow;
    private int deleteAccountDetailRow;
    private int rowCount;

    @Override
    public boolean onFragmentCreate() {
        super.onFragmentCreate();

        ContactsController.getInstance().loadPrivacySettings();

        rowCount = 0;
        privacySectionRow = rowCount++;
        blockedRow = rowCount++;
        lastSeenRow = rowCount++;
        lastSeenDetailRow = rowCount++;
        securitySectionRow = rowCount++;
        passcodeRow = rowCount++;
        passwordRow = rowCount++;
        sessionsRow = rowCount++;
        sessionsDetailRow = rowCount++;
        deleteAccountSectionRow = rowCount++;
        deleteAccountRow = rowCount++;
        deleteAccountDetailRow = rowCount++;

        NotificationCenter.getInstance().addObserver(this, NotificationCenter.privacyRulesUpdated);

        return true;
    }

    @Override
    public void onFragmentDestroy() {
        super.onFragmentDestroy();
        NotificationCenter.getInstance().removeObserver(this, NotificationCenter.privacyRulesUpdated);
    }

    @Override
    public View createView(Context context) {
        actionBar.setBackButtonImage(R.drawable.ic_ab_back);
        actionBar.setAllowOverlayTitle(true);
        actionBar.setTitle(LocaleController.getString("PrivacySettings", R.string.PrivacySettings));
        actionBar.setActionBarMenuOnItemClick(new ActionBar.ActionBarMenuOnItemClick() {
            @Override
            public void onItemClick(int id) {
                if (id == -1) {
                    finishFragment();
                }
            }
        });

        listAdapter = new ListAdapter(context);

        fragmentView = new FrameLayout(context);
        FrameLayout frameLayout = (FrameLayout) fragmentView;
        frameLayout.setBackgroundColor(0xfff0f0f0);

        ListView listView = new ListView(context);
        listView.setDivider(null);
        listView.setDividerHeight(0);
        listView.setVerticalScrollBarEnabled(false);
        listView.setDrawSelectorOnTop(true);
        frameLayout.addView(listView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT));
        listView.setAdapter(listAdapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, final int i, long l) {
                if (i == blockedRow) {
                    presentFragment(new BlockedUsersActivity());
                } else if (i == sessionsRow) {
                    presentFragment(new SessionsActivity());
                } else if (i == deleteAccountRow) {
                    if (getParentActivity() == null) {
                        return;
                    }
                    AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity());
                    builder.setTitle(LocaleController.getString("DeleteAccountTitle", R.string.DeleteAccountTitle));
                    builder.setItems(new CharSequence[]{
                            LocaleController.formatPluralString("Months", 1),
                            LocaleController.formatPluralString("Months", 3),
                            LocaleController.formatPluralString("Months", 6),
                            LocaleController.formatPluralString("Years", 1)
                    }, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            int value = 0;
                            if (which == 0) {
                                value = 30;
                            } else if (which == 1) {
                                value = 90;
                            } else if (which == 2) {
                                value = 182;
                            } else if (which == 3) {
                                value = 365;
                            }
                            final ProgressDialog progressDialog = new ProgressDialog(getParentActivity());
                            progressDialog.setMessage(LocaleController.getString("Loading", R.string.Loading));
                            progressDialog.setCanceledOnTouchOutside(false);
                            progressDialog.setCancelable(false);
                            progressDialog.show();

                            final TLRPC.TL_account_setAccountTTL req = new TLRPC.TL_account_setAccountTTL();
                            req.ttl = new TLRPC.TL_accountDaysTTL();
                            req.ttl.days = value;
                            ConnectionsManager.getInstance().sendRequest(req, new RequestDelegate() {
                                @Override
                                public void run(final TLObject response, final TLRPC.TL_error error) {
                                    AndroidUtilities.runOnUIThread(new Runnable() {
                                        @Override
                                        public void run() {
                                            try {
                                                progressDialog.dismiss();
                                            } catch (Exception e) {
                                                FileLog.e("tmessages", e);
                                            }
                                            if (response instanceof TLRPC.TL_boolTrue) {
                                                ContactsController.getInstance().setDeleteAccountTTL(req.ttl.days);
                                                listAdapter.notifyDataSetChanged();
                                            }
                                        }
                                    });
                                }
                            });
                        }
                    });
                    builder.setNegativeButton(LocaleController.getString("Cancel", R.string.Cancel), null);
                    showDialog(builder.create());
                } else if (i == lastSeenRow) {
                    presentFragment(new LastSeenActivity());
                } else if (i == passwordRow) {
                    presentFragment(new TwoStepVerificationActivity(0));
                } else if (i == passcodeRow) {
                    if (UserConfig.passcodeHash.length() > 0) {
                        presentFragment(new PasscodeActivity(2));
                    } else {
                        presentFragment(new PasscodeActivity(0));
                    }
                }
            }
        });

        return fragmentView;
    }

    @Override
    public void didReceivedNotification(int id, Object... args) {
        if (id == NotificationCenter.privacyRulesUpdated) {
            if (listAdapter != null) {
                listAdapter.notifyDataSetChanged();
            }
        }
    }

    private String formatRulesString() {
        ArrayList<TLRPC.PrivacyRule> privacyRules = ContactsController.getInstance().getPrivacyRules();
        if (privacyRules.size() == 0) {
            return LocaleController.getString("LastSeenNobody", R.string.LastSeenNobody);
        }
        int type = -1;
        int plus = 0;
        int minus = 0;
        for (TLRPC.PrivacyRule rule : privacyRules) {
            if (rule instanceof TLRPC.TL_privacyValueAllowUsers) {
                plus += rule.users.size();
            } else if (rule instanceof TLRPC.TL_privacyValueDisallowUsers) {
                minus += rule.users.size();
            } else if (rule instanceof TLRPC.TL_privacyValueAllowAll) {
                type = 0;
            } else if (rule instanceof TLRPC.TL_privacyValueDisallowAll) {
                type = 1;
            } else {
                type = 2;
            }
        }
        if (type == 0 || type == -1 && minus > 0) {
            if (minus == 0) {
                return LocaleController.getString("LastSeenEverybody", R.string.LastSeenEverybody);
            } else {
                return LocaleController.formatString("LastSeenEverybodyMinus", R.string.LastSeenEverybodyMinus, minus);
            }
        } else if (type == 2 || type == -1 && minus > 0 && plus > 0) {
            if (plus == 0 && minus == 0) {
                return LocaleController.getString("LastSeenContacts", R.string.LastSeenContacts);
            } else {
                if (plus != 0 && minus != 0) {
                    return LocaleController.formatString("LastSeenContactsMinusPlus", R.string.LastSeenContactsMinusPlus, minus, plus);
                } else if (minus != 0) {
                    return LocaleController.formatString("LastSeenContactsMinus", R.string.LastSeenContactsMinus, minus);
                } else {
                    return LocaleController.formatString("LastSeenContactsPlus", R.string.LastSeenContactsPlus, plus);
                }
            }
        } else if (type == 1 || plus > 0) {
            if (plus == 0) {
                return LocaleController.getString("LastSeenNobody", R.string.LastSeenNobody);
            } else {
                return LocaleController.formatString("LastSeenNobodyPlus", R.string.LastSeenNobodyPlus, plus);
            }
        }
        return "unknown";
    }

    @Override
    public void onResume() {
        super.onResume();
        if (listAdapter != null) {
            listAdapter.notifyDataSetChanged();
        }
    }

    private class ListAdapter extends BaseFragmentAdapter {
        private Context mContext;

        public ListAdapter(Context context) {
            mContext = context;
        }

        @Override
        public boolean areAllItemsEnabled() {
            return false;
        }

        @Override
        public boolean isEnabled(int i) {
            return i == passcodeRow || i == passwordRow || i == blockedRow || i == sessionsRow || i == lastSeenRow && !ContactsController.getInstance().getLoadingLastSeenInfo() || i == deleteAccountRow && !ContactsController.getInstance().getLoadingDeleteInfo();
        }

        @Override
        public int getCount() {
            return rowCount;
        }

        @Override
        public Object getItem(int i) {
            return null;
        }

        @Override
        public long getItemId(int i) {
            return i;
        }

        @Override
        public boolean hasStableIds() {
            return false;
        }

        @Override
        public View getView(int i, View view, ViewGroup viewGroup) {
            int type = getItemViewType(i);
            if (type == 0) {
                if (view == null) {
                    view = new TextSettingsCell(mContext);
                    view.setBackgroundColor(0xffffffff);
                }
                TextSettingsCell textCell = (TextSettingsCell) view;
                if (i == blockedRow) {
                    textCell.setText(LocaleController.getString("BlockedUsers", R.string.BlockedUsers), true);
                } else if (i == sessionsRow) {
                    textCell.setText(LocaleController.getString("SessionsTitle", R.string.SessionsTitle), false);
                } else if (i == passwordRow) {
                    textCell.setText(LocaleController.getString("TwoStepVerification", R.string.TwoStepVerification), true);
                } else if (i == passcodeRow) {
                    textCell.setText(LocaleController.getString("Passcode", R.string.Passcode), true);
                } else if (i == lastSeenRow) {
                    String value;
                    if (ContactsController.getInstance().getLoadingLastSeenInfo()) {
                        value = LocaleController.getString("Loading", R.string.Loading);
                    } else {
                        value = formatRulesString();
                    }
                    textCell.setTextAndValue(LocaleController.getString("PrivacyLastSeen", R.string.PrivacyLastSeen), value, false);
                } else if (i == deleteAccountRow) {
                    String value;
                    if (ContactsController.getInstance().getLoadingDeleteInfo()) {
                        value = LocaleController.getString("Loading", R.string.Loading);
                    } else {
                        int ttl = ContactsController.getInstance().getDeleteAccountTTL();
                        if (ttl <= 182) {
                            value = LocaleController.formatPluralString("Months", ttl / 30);
                        } else if (ttl == 365) {
                            value = LocaleController.formatPluralString("Years", ttl / 365);
                        } else {
                            value = LocaleController.formatPluralString("Days", ttl);
                        }
                    }
                    textCell.setTextAndValue(LocaleController.getString("DeleteAccountIfAwayFor", R.string.DeleteAccountIfAwayFor), value, false);
                }
            } else if (type == 1) {
                if (view == null) {
                    view = new TextInfoPrivacyCell(mContext);
                }
                if (i == deleteAccountDetailRow) {
                    ((TextInfoPrivacyCell) view).setText(LocaleController.getString("DeleteAccountHelp", R.string.DeleteAccountHelp));
                    view.setBackgroundResource(R.drawable.greydivider_bottom);
                } else if (i == lastSeenDetailRow) {
                    ((TextInfoPrivacyCell) view).setText(LocaleController.getString("LastSeenHelp", R.string.LastSeenHelp));
                    view.setBackgroundResource(R.drawable.greydivider);
                } else if (i == sessionsDetailRow) {
                    ((TextInfoPrivacyCell) view).setText(LocaleController.getString("SessionsInfo", R.string.SessionsInfo));
                    view.setBackgroundResource(R.drawable.greydivider);
                }
            } else if (type == 2) {
                if (view == null) {
                    view = new HeaderCell(mContext);
                    view.setBackgroundColor(0xffffffff);
                }
                if (i == privacySectionRow) {
                    ((HeaderCell) view).setText(LocaleController.getString("PrivacyTitle", R.string.PrivacyTitle));
                } else if (i == securitySectionRow) {
                    ((HeaderCell) view).setText(LocaleController.getString("SecurityTitle", R.string.SecurityTitle));
                } else if (i == deleteAccountSectionRow) {
                    ((HeaderCell) view).setText(LocaleController.getString("DeleteAccountTitle", R.string.DeleteAccountTitle));
                }
            }
            return view;
        }

        @Override
        public int getItemViewType(int i) {
            if (i == lastSeenRow || i == blockedRow || i == deleteAccountRow || i == sessionsRow || i == passwordRow || i == passcodeRow) {
                return 0;
            } else if (i == deleteAccountDetailRow || i == lastSeenDetailRow || i == sessionsDetailRow) {
                return 1;
            } else if (i == securitySectionRow || i == deleteAccountSectionRow || i == privacySectionRow) {
                return 2;
            }
            return 0;
        }

        @Override
        public int getViewTypeCount() {
            return 3;
        }

        @Override
        public boolean isEmpty() {
            return false;
        }
    }
}