bytes.kt/src/commonMain/kotlin/com/infendro/bytes/bytearray/Operator.kt

package com.infendro.bytes.bytearray

import com.infendro.bytes.byte.not
import kotlin.experimental.and
import kotlin.experimental.or
import kotlin.experimental.xor

fun ByteArray.andInto(
    that: ByteArray,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
    thatStartIndex: Int = 0,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(thatStartIndex in 0..(that.size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] and that[thatStartIndex + i]
    }
}

fun ByteArray.andInto(
    that: Byte,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] and that
    }
}

fun ByteArray.andWith(that: ByteArray, startIndex: Int = 0, endIndex: Int = size, thatStartIndex: Int) =
    andInto(that, this, startIndex, startIndex, endIndex, thatStartIndex)

fun ByteArray.andWith(that: Byte, startIndex: Int = 0, endIndex: Int = size) =
    andInto(that, this, startIndex, startIndex, endIndex)

infix fun ByteArray.and(that: ByteArray): ByteArray {
    val result = ByteArray(size)
    andInto(that, result)
    return result
}

infix fun ByteArray.and(that: Byte): ByteArray {
    val result = ByteArray(size)
    andInto(that, result)
    return result
}

fun ByteArray.orInto(
    that: ByteArray,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
    thatStartIndex: Int = 0,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(thatStartIndex in 0..(that.size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] or that[thatStartIndex + i]
    }
}

fun ByteArray.orInto(
    that: Byte,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] or that
    }
}

fun ByteArray.orWith(that: ByteArray, startIndex: Int = 0, endIndex: Int = size, thatStartIndex: Int) =
    orInto(that, this, startIndex, startIndex, endIndex, thatStartIndex)

fun ByteArray.orWith(that: Byte, startIndex: Int = 0, endIndex: Int = size) =
    orInto(that, this, startIndex, startIndex, endIndex)

infix fun ByteArray.or(that: ByteArray): ByteArray {
    val result = ByteArray(size)
    orInto(that, result)
    return result
}

infix fun ByteArray.or(that: Byte): ByteArray {
    val result = ByteArray(size)
    orInto(that, result)
    return result
}

fun ByteArray.xorInto(
    that: ByteArray,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
    thatStartIndex: Int = 0,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(thatStartIndex in 0..(that.size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] xor that[thatStartIndex + i]
    }
}

fun ByteArray.xorInto(
    that: Byte,
    destination: ByteArray,
    destinationOffset: Int = 0,
    startIndex: Int = 0,
    endIndex: Int = size,
) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = this[startIndex + i] xor that
    }
}

fun ByteArray.xorWith(that: ByteArray, startIndex: Int = 0, endIndex: Int = size, thatStartIndex: Int) =
    xorInto(that, this, startIndex, startIndex, endIndex, thatStartIndex)

fun ByteArray.xorWith(that: Byte, startIndex: Int = 0, endIndex: Int = size) =
    xorInto(that, this, startIndex, startIndex, endIndex)

infix fun ByteArray.xor(that: ByteArray): ByteArray {
    val result = ByteArray(size)
    xorInto(that, result)
    return result
}

infix fun ByteArray.xor(that: Byte): ByteArray {
    val result = ByteArray(size)
    xorInto(that, result)
    return result
}

fun ByteArray.invInto(destination: ByteArray, destinationOffset: Int = 0, startIndex: Int = 0, endIndex: Int = size) {
    val length = endIndex - startIndex
    require(length >= 0)
    require(startIndex in 0..(size - length))
    require(destinationOffset in 0..(destination.size - length))

    for (i in 0..<length) {
        destination[destinationOffset + i] = !this[startIndex + i]
    }
}

fun ByteArray.inv(startIndex: Int, endIndex: Int) =
    invInto(this, startIndex, startIndex, endIndex)

operator fun ByteArray.not(): ByteArray {
    val result = ByteArray(size)
    invInto(result)
    return result
}