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/*
 * Copyright (c) 2023. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */


package org.jetbrains.letsPlot.util.pngj

internal expect object Zip {
    fun compressBytes(ori: ByteArray, offset: Int, len: Int, compress: Boolean): ByteArray
    fun newDeflater(deflaterCompLevel: Int = DEFLATER_DEFAULT_STRATEGY): Deflater
    fun newInflater(): Inflater
    fun crc32() : Checksum
    fun adler32() : Checksum
    val IS_BYTE_ORDER_BIG_ENDIAN: Boolean
}

internal interface Inflater {
    // } catch (e: java.util.zip.DataFormatException) {
    //     throw PngjInputException("error decompressing zlib stream ", e)
    // }
    fun inflate(output: ByteArray, off: Int, len: Int): Int
    fun setInput(input: ByteArray, off: Int, len: Int)
    fun end()

    val needsDictionary: Boolean
    val needsInput: Boolean
    val finished: Boolean

}

internal interface Deflater {
    fun setStrategy(deflaterStrategy: Int)
    fun finished(): Boolean
    fun setInput(data: ByteArray, off: Int, len: Int)
    fun needsInput(): Boolean
    fun deflate(buf: ByteArray, off: Int, n: Int): Int
    fun finish()
    fun end()
    fun reset()
}

internal interface Checksum {
    fun update(b: Int)
    fun update(b: ByteArray, off: Int = 0, len: Int = b.size)
    val value: Long
    fun reset()
}



internal const val DEFLATER_DEFAULT_STRATEGY: Int = 0