/*
 * Nextcloud Talk application
 *
 * @author Mario Danic
 * Copyright (C) 2017 Mario Danic (mario@lovelyhq.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.nextcloud.talk.controllers;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.content.Intent;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.bluelinelabs.conductor.RouterTransaction;
import com.bluelinelabs.conductor.changehandler.VerticalChangeHandler;
import com.bumptech.glide.load.model.GlideUrl;
import com.bumptech.glide.load.model.LazyHeaders;
import com.nextcloud.talk.BuildConfig;
import com.nextcloud.talk.R;
import com.nextcloud.talk.api.helpers.api.ApiHelper;
import com.nextcloud.talk.application.NextcloudTalkApplication;
import com.nextcloud.talk.controllers.base.BaseController;
import com.nextcloud.talk.persistence.entities.UserEntity;
import com.nextcloud.talk.utils.ColorUtils;
import com.nextcloud.talk.utils.SettingsMessageHolder;
import com.nextcloud.talk.utils.database.user.UserUtils;
import com.nextcloud.talk.utils.glide.GlideApp;
import com.nextcloud.talk.utils.preferences.AppPreferences;
import com.nextcloud.talk.utils.preferences.MagicUserInputModule;
import com.yarolegovich.mp.MaterialChoicePreference;
import com.yarolegovich.mp.MaterialEditTextPreference;
import com.yarolegovich.mp.MaterialPreferenceCategory;
import com.yarolegovich.mp.MaterialPreferenceScreen;
import com.yarolegovich.mp.MaterialStandardPreference;

import net.orange_box.storebox.listeners.OnPreferenceValueChangedListener;

import org.greenrobot.eventbus.EventBus;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import javax.inject.Inject;

import autodagger.AutoInjector;
import butterknife.BindView;
import cn.carbs.android.avatarimageview.library.AvatarImageView;

@AutoInjector(NextcloudTalkApplication.class)
public class SettingsController extends BaseController {

    public static final String TAG = "SettingsController";

    @BindView(R.id.settings_screen)
    MaterialPreferenceScreen settingsScreen;

    @BindView(R.id.settings_proxy_choice)
    MaterialChoicePreference proxyChoice;

    @BindView(R.id.settings_proxy_port_edit)
    MaterialEditTextPreference proxyPortEditText;

    @BindView(R.id.settings_licence)
    MaterialStandardPreference licenceButton;

    @BindView(R.id.settings_privacy)
    MaterialStandardPreference privacyButton;

    @BindView(R.id.settings_source_code)
    MaterialStandardPreference sourceCodeButton;

    @BindView(R.id.settings_version)
    MaterialStandardPreference versionInfo;

    @BindView(R.id.avatar_image)
    AvatarImageView avatarImageView;

    @BindView(R.id.display_name_text)
    TextView displayName;

    @BindView(R.id.settings_remove_account)
    MaterialStandardPreference removeAccountButton;

    @BindView(R.id.settings_switch)
    MaterialStandardPreference switchAccountButton;

    @BindView(R.id.settings_reauthorize)
    MaterialStandardPreference reauthorizeButton;

    @BindView(R.id.settings_add_account)
    MaterialStandardPreference addAccountButton;

    @BindView(R.id.message_view)
    MaterialPreferenceCategory messageView;

    @BindView(R.id.message_text)
    TextView messageText;

    @Inject
    EventBus eventBus;

    @Inject
    AppPreferences appPreferences;

    @Inject
    UserUtils userUtils;

    private OnPreferenceValueChangedListener<String> proxyTypeChangeListener;
    private OnPreferenceValueChangedListener<Boolean> proxyCredentialsChangeListener;

    @Override
    protected View inflateView(@NonNull LayoutInflater inflater, @NonNull ViewGroup container) {
        return inflater.inflate(R.layout.controller_settings, container, false);
    }

    @Override
    protected void onViewBound(@NonNull View view) {
        super.onViewBound(view);
        NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
    }

    @Override
    protected void onAttach(@NonNull View view) {
        super.onAttach(view);

        if ("No proxy".equals(appPreferences.getProxyType()) || appPreferences.getProxyType() == null) {
            hideProxySettings();
        } else {
            showProxySettings();
        }

        if (appPreferences.getProxyCredentials()) {
            showProxyCredentials();
        } else {
            hideProxyCredentials();
        }

        appPreferences.registerProxyTypeListener(proxyTypeChangeListener = new ProxyTypeChangeListener());
        appPreferences.registerProxyCredentialsListener(proxyCredentialsChangeListener = new
                ProxyCredentialsChangeListener());

        List<String> listWithIntFields = new ArrayList<>();
        listWithIntFields.add("proxy_port");

        settingsScreen.setUserInputModule(new MagicUserInputModule(getActivity(), listWithIntFields));
        settingsScreen.setVisibilityController(R.id.settings_proxy_use_credentials,
                Arrays.asList(R.id.settings_proxy_username_edit, R.id.settings_proxy_password_edit),
                true);

        if (!TextUtils.isEmpty(getResources().getString(R.string.nc_gpl3_url))) {
            licenceButton.setOnClickListener(view1 -> {
                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(getResources().
                        getString(R.string.nc_gpl3_url)));
                startActivity(browserIntent);
            });
        } else {
            licenceButton.setVisibility(View.GONE);
        }

        if (!TextUtils.isEmpty(getResources().getString(R.string.nc_privacy_url))) {
            privacyButton.setOnClickListener(view12 -> {
                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(getResources().
                        getString(R.string.nc_privacy_url)));
                startActivity(browserIntent);
            });
        } else {
            privacyButton.setVisibility(View.GONE);
        }

        if (!TextUtils.isEmpty(getResources().getString(R.string.nc_source_code_url))) {
            sourceCodeButton.setOnClickListener(view13 -> {
                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(getResources().
                        getString(R.string.nc_source_code_url)));
                startActivity(browserIntent);
            });
        } else {
            sourceCodeButton.setVisibility(View.GONE);
        }

        versionInfo.setSummary("v" + BuildConfig.VERSION_NAME);

        UserEntity userEntity = userUtils.getCurrentUser();
        if (userEntity != null) {
            // Awful hack
            avatarImageView.setTextAndColorSeed(String.valueOf(userEntity.getDisplayName().
                    toUpperCase().charAt(0)), ColorUtils.colorSeed);

            GlideUrl glideUrl = new GlideUrl(ApiHelper.getUrlForAvatarWithName(userEntity.getBaseUrl(),
                    userEntity.getUsername()), new LazyHeaders.Builder()
                    .setHeader("Accept", "image/*")
                    .setHeader("User-Agent", ApiHelper.getUserAgent())
                    .build());

            GlideApp.with(NextcloudTalkApplication.getSharedApplication().getApplicationContext())
                    .load(glideUrl)
                    .circleCrop()
                    .centerInside()
                    .into(avatarImageView);

            displayName.setText(userEntity.getDisplayName());
        }

        if (userUtils.getUsers().size() <= 1) {
            switchAccountButton.setVisibility(View.GONE);
        }


        reauthorizeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                getParentController().getRouter().pushController(RouterTransaction.with(
                        new WebViewLoginController(userEntity.getBaseUrl(), true))
                        .pushChangeHandler(new VerticalChangeHandler())
                        .popChangeHandler(new VerticalChangeHandler()));
            }
        });

        addAccountButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                getParentController().getRouter().pushController(RouterTransaction.with(new
                        ServerSelectionController()).pushChangeHandler(new VerticalChangeHandler())
                        .popChangeHandler(new VerticalChangeHandler()));
            }
        });

        if (SettingsMessageHolder.getInstance().getMessageType() != null) {
            switch (SettingsMessageHolder.getInstance().getMessageType()) {
                case ACCOUNT_UPDATED_NOT_ADDED:
                    messageText.setText(getResources().getString(R.string.nc_settings_account_updated));
                    messageView.setVisibility(View.VISIBLE);
                    break;
                case WRONG_ACCOUNT:
                    messageText.setText(getResources().getString(R.string.nc_settings_wrong_account));
                    messageView.setVisibility(View.VISIBLE);
                    break;
                default:
                    messageView.setVisibility(View.GONE);
                    break;
            }
            SettingsMessageHolder.getInstance().setMessageType(null);

            messageView.animate()
                    .translationY(0)
                    .alpha(0.0f)
                    .setDuration(2000)
                    .setStartDelay(5000)
                    .setListener(new AnimatorListenerAdapter() {
                        @Override
                        public void onAnimationEnd(Animator animation) {
                            super.onAnimationEnd(animation);
                            messageView.setVisibility(View.GONE);
                        }
                    });

        } else {
            messageView.setVisibility(View.GONE);
        }
    }

    @Override
    public void onDestroy() {
        appPreferences.unregisterProxyTypeListener(proxyTypeChangeListener);
        appPreferences.unregisterProxyCredentialsListener(proxyCredentialsChangeListener);
        super.onDestroy();
    }


    private void hideProxySettings() {
        appPreferences.removeProxyHost();
        appPreferences.removeProxyPort();
        appPreferences.removeProxyCredentials();
        appPreferences.removeProxyUsername();
        appPreferences.removeProxyPassword();
        settingsScreen.findViewById(R.id.settings_proxy_host_edit).setVisibility(View.GONE);
        settingsScreen.findViewById(R.id.settings_proxy_port_edit).setVisibility(View.GONE);
        settingsScreen.findViewById(R.id.settings_proxy_use_credentials).setVisibility(View.GONE);
        settingsScreen.findViewById(R.id.settings_proxy_username_edit).setVisibility(View.GONE);
        settingsScreen.findViewById(R.id.settings_proxy_password_edit).setVisibility(View.GONE);
    }

    private void showProxySettings() {
        settingsScreen.findViewById(R.id.settings_proxy_host_edit).setVisibility(View.VISIBLE);
        settingsScreen.findViewById(R.id.settings_proxy_port_edit).setVisibility(View.VISIBLE);
        settingsScreen.findViewById(R.id.settings_proxy_use_credentials).setVisibility(View.VISIBLE);
    }

    private void showProxyCredentials() {
        settingsScreen.findViewById(R.id.settings_proxy_username_edit).setVisibility(View.VISIBLE);
        settingsScreen.findViewById(R.id.settings_proxy_password_edit).setVisibility(View.VISIBLE);
    }

    private void hideProxyCredentials() {
        appPreferences.removeProxyUsername();
        appPreferences.removeProxyPassword();
        settingsScreen.findViewById(R.id.settings_proxy_username_edit).setVisibility(View.GONE);
        settingsScreen.findViewById(R.id.settings_proxy_password_edit).setVisibility(View.GONE);
    }

    private class ProxyCredentialsChangeListener implements OnPreferenceValueChangedListener<Boolean> {

        @Override
        public void onChanged(Boolean newValue) {
            if (newValue) {
                showProxyCredentials();
            } else {
                hideProxyCredentials();
            }
        }
    }

    private class ProxyTypeChangeListener implements OnPreferenceValueChangedListener<String> {

        @Override
        public void onChanged(String newValue) {
            if ("No proxy".equals(newValue)) {
                hideProxySettings();
            } else {
                switch (newValue) {
                    case "HTTP":
                        proxyPortEditText.setValue("3128");
                        break;
                    case "DIRECT":
                        proxyPortEditText.setValue("8080");
                        break;
                    case "SOCKS":
                        proxyPortEditText.setValue("1080");
                        break;
                    default:
                        break;
                }

                showProxySettings();
            }
        }
    }
}