/*
 * Copyright (C) 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.settings.network;

import static android.provider.Settings.Secure.ADAPTIVE_CONNECTIVITY_MOBILE_NETWORK_ENABLED;
import static android.provider.Settings.Secure.ADAPTIVE_CONNECTIVITY_WIFI_ENABLED;
import static android.provider.Settings.Secure.ADAPTIVE_CONNECTIVITY_ENABLED;
import static com.google.common.base.Preconditions.checkNotNull;

import android.app.settings.SettingsEnums;
import android.content.Context;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.provider.Settings;
import android.telephony.SubscriptionManager;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.preference.Preference;
import androidx.preference.SwitchPreferenceCompat;
import com.android.settings.R;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.flags.Flags;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settingslib.search.SearchIndexable;
import com.android.settingslib.widget.IllustrationPreference;

/** Adaptive connectivity is a feature which automatically manages network connections. */
@SearchIndexable
public class AdaptiveConnectivitySettings extends DashboardFragment {
    private static final String TAG = "AdaptiveConnectivitySettings";
    private static final String ADAPTIVE_CONNECTIVITY_SUMMARY = "adaptive_connectivity_summary";
    private static final String ADAPTIVE_CONNECTIVITY_HEADER = "adaptive_connectivity_header";

    @Override
    public int getMetricsCategory() {
        return SettingsEnums.ADAPTIVE_CONNECTIVITY_CATEGORY;
    }

    @Override
    protected String getLogTag() {
        return TAG;
    }

    @Override
    protected int getPreferenceScreenResId() {
        return R.xml.adaptive_connectivity_settings;
    }

    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
            new BaseSearchIndexProvider(R.xml.adaptive_connectivity_settings);

    @Override
    public @Nullable String getPreferenceScreenBindingKey(@NonNull Context context) {
        return AdaptiveConnectivityScreen.KEY;
    }

    @Override
    public void onCreatePreferences(@NonNull Bundle savedInstanceState, @NonNull String rootKey) {
        Log.i("Settings", "onCreatePreferences");
        super.onCreatePreferences(savedInstanceState, rootKey);

        final IllustrationPreference illustration =
                checkNotNull(findPreference(ADAPTIVE_CONNECTIVITY_HEADER));
        final boolean enableNestedToggles = Flags.enableAdaptiveConnectivityToggleSwitches();

        illustration.setLottieAnimationResId(
                enableNestedToggles
                        ? R.drawable.ic_enhanced_connectivity_dynamic
                        : R.drawable.ic_enhanced_connectivity);

        if (enableNestedToggles) {
            illustration.applyDynamicColor();
            // remove summary
            Preference topIntroPref = findPreference(ADAPTIVE_CONNECTIVITY_SUMMARY);
            if (topIntroPref != null) {
                topIntroPref.setVisible(false);
            }
            // remove legacy master toggle
            Preference legacyAdaptiveConnPref = findPreference(ADAPTIVE_CONNECTIVITY_ENABLED);
            if (legacyAdaptiveConnPref != null) {
                legacyAdaptiveConnPref.setVisible(false);
            }
            setupSwitchPreferenceCompat(ADAPTIVE_CONNECTIVITY_WIFI_ENABLED);
            final SubscriptionManager subscriptionManager =
                    getContext().getSystemService(SubscriptionManager.class);
            final boolean shouldHideMobileNetworkToggle =
                    subscriptionManager != null
                            && SubscriptionUtil.hasSubscriptionForMobileNetworkToggleDisable(
                                    getContext(), subscriptionManager);
            if (!shouldHideMobileNetworkToggle) {
                setupSwitchPreferenceCompat(ADAPTIVE_CONNECTIVITY_MOBILE_NETWORK_ENABLED);
            }
        }
    }

    void setupSwitchPreferenceCompat(String key) {
        SwitchPreferenceCompat switchPreference = findPreference(key);
        if (switchPreference != null) {
            switchPreference.setOnPreferenceChangeListener(
                    (preference, newValue) -> {
                        boolean isChecked = (Boolean) newValue;
                        Settings.Secure.putInt(getContentResolver(), key, isChecked ? 1 : 0);
                        if (preference.getKey().equals(ADAPTIVE_CONNECTIVITY_WIFI_ENABLED)) {
                            getSystemService(WifiManager.class).setWifiScoringEnabled(isChecked);
                        }
                        return true;
                    });
            switchPreference.setVisible(true);
        }
    }
}