/*
 * Copyright (C) 2010 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.gallery3d.data;

import com.android.gallery3d.util.MediaSetUtils;

public final class DataSourceType {
    public static final int TYPE_NOT_CATEGORIZED = 0;
    public static final int TYPE_LOCAL = 1;
    public static final int TYPE_PICASA = 2;
    public static final int TYPE_MTP = 3;
    public static final int TYPE_CAMERA = 4;

    private static final Path PICASA_ROOT = Path.fromString("/picasa");
    private static final Path LOCAL_ROOT = Path.fromString("/local");
    private static final Path MTP_ROOT = Path.fromString("/mtp");

    public static int identifySourceType(MediaSet set) {
        if (set == null) {
            return TYPE_NOT_CATEGORIZED;
        }

        Path path = set.getPath();
        if (MediaSetUtils.isCameraSource(path)) return TYPE_CAMERA;

        Path prefix = path.getPrefixPath();

        if (prefix == PICASA_ROOT) return TYPE_PICASA;
        if (prefix == MTP_ROOT) return TYPE_MTP;
        if (prefix == LOCAL_ROOT) return TYPE_LOCAL;

        return TYPE_NOT_CATEGORIZED;
    }
}