/*
 * Copyright 2020 Google LLC
 *
 * 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
 *
 *     https://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.google.mlkit.md

import android.graphics.Bitmap
import com.google.mlkit.md.camera.FrameMetadata
import java.nio.ByteBuffer

interface InputInfo {
    fun getBitmap(): Bitmap
}

class CameraInputInfo(
    private val frameByteBuffer: ByteBuffer,
    private val frameMetadata: FrameMetadata
) : InputInfo {

    private var bitmap: Bitmap? = null

    @Synchronized
    override fun getBitmap(): Bitmap {
        return bitmap ?: let {
            bitmap = Utils.convertToBitmap(
                frameByteBuffer, frameMetadata.width, frameMetadata.height, frameMetadata.rotation
            )
            bitmap!!
        }
    }
}

class BitmapInputInfo(private val bitmap: Bitmap) : InputInfo {
    override fun getBitmap(): Bitmap {
        return bitmap
    }
}
