/*
 * Copyright (C) 2017 Peng fei Pan <sky@xiaopan.me>
 *
 * 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 me.xiaopan.sketch.decode;

import android.graphics.BitmapFactory;

import me.xiaopan.sketch.SketchMonitor;
import me.xiaopan.sketch.cache.BitmapPool;
import me.xiaopan.sketch.drawable.ImageAttrs;
import me.xiaopan.sketch.drawable.SketchGifDrawable;
import me.xiaopan.sketch.drawable.SketchGifFactory;
import me.xiaopan.sketch.request.LoadRequest;

public class GifDecodeHelper implements DecodeHelper {

    @Override
    public boolean match(LoadRequest request, DataSource dataSource, ImageType imageType, BitmapFactory.Options boundOptions) {
        return imageType != null
                && imageType == ImageType.GIF
                && request.getOptions().isDecodeGifImage()
                && SketchGifFactory.isExistGifLibrary();
    }

    @Override
    public DecodeResult decode(LoadRequest request, DataSource dataSource, ImageType imageType,
                               BitmapFactory.Options boundOptions, BitmapFactory.Options decodeOptions, int orientation) {
        try {
            ImageAttrs imageAttrs = new ImageAttrs(boundOptions.outMimeType, boundOptions.outWidth,
                    boundOptions.outHeight, orientation);
            BitmapPool bitmapPool = request.getConfiguration().getBitmapPool();

            SketchGifDrawable gifDrawable = dataSource.makeGifDrawable(request.getKey(), request.getUri(),
                    imageAttrs, bitmapPool);
            if (gifDrawable == null) {
                return null;
            }

            return new GifDecodeResult(imageAttrs, gifDrawable).setBanProcess(true);
        } catch (Throwable e) {
            e.printStackTrace();
            SketchMonitor sketchMonitor = request.getConfiguration().getMonitor();
            sketchMonitor.onDecodeGifImageError(e, request,
                    boundOptions.outWidth, boundOptions.outHeight, boundOptions.outMimeType);
            return null;
        }
    }
}