/*
 * Copyright (C) 2021 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.accessibility;

import static com.android.internal.accessibility.common.ShortcutConstants.UserShortcutType.SOFTWARE;

import android.content.Context;
import android.content.res.Resources;
import android.view.accessibility.AccessibilityManager;

import androidx.annotation.NonNull;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;

import com.android.settings.R;
import com.android.settings.core.BasePreferenceController;
import com.android.settingslib.search.SearchIndexableRaw;

import java.util.List;

/**
 * Preference controller for accessibility button preference.
 */
public class AccessibilityButtonPreferenceController extends BasePreferenceController {
    public AccessibilityButtonPreferenceController(Context context, String key) {
        super(context, key);
    }

    @Override
    public int getAvailabilityStatus() {
        if (!com.android.settings.accessibility.Flags.fixA11ySettingsSearch()) {
            return AVAILABLE;
        } else {
            if (mContext.getSystemService(AccessibilityManager.class)
                    .getAccessibilityShortcutTargets(SOFTWARE).isEmpty()) {
                return DISABLED_DEPENDENT_SETTING;
            } else {
                return AVAILABLE;
            }
        }
    }

    @Override
    public void updateState(@NonNull Preference preference) {
        super.updateState(preference);
        refreshSummary(preference);
    }

    @Override
    public @NonNull CharSequence getSummary() {
        if (getAvailabilityStatus() == AVAILABLE) {
            return "";
        } else {
            return mContext.getString(
                    R.string.accessibility_shortcut_unassigned_setting_unavailable_summary,
                    AccessibilityUtil.getShortcutSummaryList(mContext, SOFTWARE));
        }
    }

    @Override
    public void displayPreference(PreferenceScreen screen) {
        super.displayPreference(screen);
        final Preference preference = screen.findPreference(getPreferenceKey());
        preference.setTitle(getPreferenceTitleResource());
    }

    @Override
    public void updateDynamicRawDataToIndex(List<SearchIndexableRaw> rawData) {
        SearchIndexableRaw data = new SearchIndexableRaw(mContext);
        data.key = getPreferenceKey();
        final Resources res = mContext.getResources();
        data.title = res.getString(getPreferenceTitleResource());
        data.screenTitle = res.getString(R.string.accessibility_shortcuts_settings_title);
        rawData.add(data);
    }

    private int getPreferenceTitleResource() {
        if (android.provider.Flags.a11yStandaloneGestureEnabled()) {
            return R.string.accessibility_button_title;
        } else {
            return AccessibilityUtil.isGestureNavigateEnabled(mContext)
                    ? R.string.accessibility_button_gesture_title
                    : R.string.accessibility_button_title;
        }
    }
}