/*
 * Copyright (c) 2010-2019 Belledonne Communications SARL.
 *
 * This file is part of linphone-android
 * (see https://www.linphone.org).
 *
 * 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 org.linphone.utils;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.net.Uri;
import android.provider.MediaStore;
import android.util.DisplayMetrics;
import android.util.TypedValue;

public class ImageUtils {

    public static Bitmap getRoundBitmapFromUri(Context context, Uri fromPictureUri) {
        Bitmap bm = null;
        Bitmap roundBm;
        if (fromPictureUri != null) {
            try {
                bm =
                        MediaStore.Images.Media.getBitmap(
                                context.getContentResolver(), fromPictureUri);
            } catch (Exception e) {
                return null;
            }
        }
        if (bm != null) {
            roundBm = getRoundBitmap(bm);
            if (roundBm != null) {
                bm.recycle();
                bm = roundBm;
            }
        }
        return bm;
    }

    public static Bitmap getRoundBitmap(Bitmap bitmap) {
        Bitmap output =
                Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawCircle(
                bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return output;
    }

    public static float dpToPixels(Context context, float dp) {
        return TypedValue.applyDimension(
                TypedValue.COMPLEX_UNIT_DIP, dp, context.getResources().getDisplayMetrics());
    }

    public static float pixelsToDp(Context context, float pixels) {
        return pixels
                / ((float) context.getResources().getDisplayMetrics().densityDpi
                        / DisplayMetrics.DENSITY_DEFAULT);
    }

    public static Bitmap rotateImage(Bitmap source, float angle) {
        Matrix matrix = new Matrix();
        matrix.postRotate(angle);
        Bitmap rotatedBitmap =
                Bitmap.createBitmap(
                        source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
        source.recycle();
        return rotatedBitmap;
    }
}