/*
 * Copyright (C)2005-2019 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package hl;

@:coreType abstract Bytes {
	extern public inline function new(v:Int) {
		this = alloc(v);
	}

	@:hlNative("std", "bytes_blit") public function blit(pos:Int, src:Bytes, srcPos:Int, len:Int):Void {}

	@:arrayAccess extern public inline function getUI8(pos:Int):Int {
		return untyped $bgetui8(this, pos);
	}

	@:arrayAccess extern public inline function setUI8(pos:Int, value:Int):Int {
		untyped $bsetui8(this, pos, value);
		return value;
	}

	extern public inline function getI32(pos:Int):Int {
		return untyped $bgeti32(this, pos);
	}

	public inline function getUI16(pos:Int):Int {
		return untyped $bgetui16(this, pos);
	}

	public inline function setUI16(pos:Int, v:Int) {
		untyped $bsetui16(this, pos, v);
	}

	extern public inline function getF32(pos:Int):F32 {
		return untyped $bgetf32(this, pos);
	}

	extern public inline function getF64(pos:Int):Float {
		return untyped $bgetf64(this, pos);
	}

	extern public inline function setI32(pos:Int, value:Int):Void {
		untyped $bseti32(this, pos, value);
	}

	extern public inline function setF32(pos:Int, value:F32):Void {
		untyped $bsetf32(this, pos, value);
	}

	extern public inline function setF64(pos:Int, value:Float):Void {
		untyped $bsetf64(this, pos, value);
	}

	@:hlNative("std", "alloc_bytes")
	static function alloc(size:Int):Bytes {
		return null;
	}

	@:hlNative("std", "parse_int")
	public function parseInt(pos:Int, size:Int):Null<Int> {
		return null;
	}

	@:hlNative("std", "parse_float")
	public function parseFloat(pos:Int, size:Int):Float {
		return 0.;
	}

	@:hlNative("std", "bytes_compare")
	public function compare(pos:Int, bytes:Bytes, bytesPos:Int, size:Int):Int {
		return 0;
	}

	#if (hl_ver >= version("1.10.0"))
	@:hlNative("std", "bytes_compare16")
	public function compare16(bytes:Bytes, size:Int):Int {
		return 0;
	}
	#end

	@:hlNative("std", "bytes_find")
	public function find(pos:Int, size:Int, bytes:Bytes, bytesPos:Int, bytesSize:Int):Int {
		return 0;
	}

	@:hlNative("std", "bytes_fill")
	public function fill(pos:Int, size:Int, v:Int):Void {}

	@:hlNative("std", "bsort_i32")
	public function sortI32(pos:Int, length:Int, f:Int->Int->Int):Void {}

	@:hlNative("std", "bsort_f64")
	public function sortF64(pos:Int, length:Int, f:Float->Float->Int):Void {}

	/**
		Please note that you need to retain the original unoffset'ed Bytes so it does not get garbage collected, unless the pointer was not GC allocated.
	**/
	@:hlNative("std", "bytes_offset")
	public function offset(delta:Int):Bytes {
		return null;
	}

	/**
		Returns an offset between the two pointers. This might overflow in 64 bits if the addresses of the two pointers differs by more than 4GB
	**/
	@:hlNative("std", "bytes_subtract")
	public function subtract(other:Bytes):Int {
		return 0;
	}

	@:hlNative("std", "bytes_address")
	static function get_address(b:Bytes, high:Ref<Int>):Int {
		return 0;
	}

	@:hlNative("std", "bytes_from_address")
	static function from_address(low:Int, high:Int):Bytes {
		return null;
	}

	/**
		Creates an pointer at a given memory address (highly unsafe)
	**/
	public static inline function fromAddress(h:haxe.Int64):Bytes {
		return from_address(h.low, h.high);
	}

	/**
		Returns the address value of the bytes. On 32 bit system the upper 32 bits will always be 0
	**/
	public function address():haxe.Int64 {
		var high = 0;
		var low = get_address(this, high);
		return haxe.Int64.make(high, low);
	}

	public function sub(pos:Int, size:Int) {
		var b = new Bytes(size);
		b.blit(0, this, pos, size);
		return b;
	}

	@:hlNative("std", "ucs2length")
	public function ucs2Length(bytePos:Int):Int {
		return 0;
	}

	@:hlNative("std", "hash")
	function hash():Int {
		return 0;
	}

	@:hlNative("std", "utf8_to_utf16")
	public function utf8ToUtf16(bytePos:Int, outSize:Ref<Int>):Bytes {
		return null;
	}

	@:hlNative("std","utf16_to_utf8")
	public function utf16ToUtf8(len:Int, outSize:Ref<Int>) : Bytes {
		return null;
	}

	@:hlNative("std", "ucs2_upper")
	function ucs2Upper(bytePos:Int, size:Int):Bytes {
		return null;
	}

	@:hlNative("std", "ucs2_lower")
	function ucs2Lower(bytePos:Int, size:Int):Bytes {
		return null;
	}

	@:hlNative("std", "url_encode")
	function urlEncode(outSize:Ref<Int>):Bytes {
		return null;
	}

	@:hlNative("std", "url_decode")
	function urlDecode(outSize:Ref<Int>):Bytes {
		return null;
	}

	@:hlNative("std", "value_to_string")
	public static function fromValue(v:Dynamic, length:Ref<Int>):Bytes {
		return null;
	}

	/**
		Get the bytes reference from an array of basic types (no copy occurs)
	**/
	extern public static inline function getArray<T>(a:Array<T>):Bytes {
		return untyped $abytes(a);
	}

	@:from
	public static inline function fromBytes(bytes:haxe.io.Bytes) {
		return @:privateAccess bytes.b;
	}

	public inline function toBytes(len:Int) {
		return @:privateAccess new haxe.io.Bytes(this, len);
	}
}