//go:build wasm
//:build wasm

package ws

import (
	"git.smesh.lol/smesh/web/common/jsbridge/callback"
	"unsafe"
)

//:wasmimport bridge ws_dial
func wasmDial(urlPtr *byte, urlLen int32, urlCap int32, onMsgID int32, onOpenID int32, onCloseID int32, onErrID int32) (n int32)

//:wasmimport bridge ws_send
func wasmSend(conn int32, msgPtr *byte, msgLen int32, msgCap int32) (n int32)

//:wasmimport bridge ws_close
func wasmClose(conn int32)

//:wasmimport bridge ws_ready_state
func wasmReadyState(conn int32) (n int32)

func Dial(url string, onMessage func(int32, string), onOpen func(int32), onClose func(int32, int32, string), onError func(int32)) (c Conn) {
	msgID := callback.RegisterIS(onMessage)
	openID := callback.RegisterI(onOpen)
	errID := callback.RegisterI(onError)
	var closeID int32
	closeID = callback.RegisterIIS(func(a int32, b int32, c string) {
		callback.Release(msgID)
		callback.Release(openID)
		callback.Release(errID)
		callback.Release(closeID)
		onClose(a, b, c)
	})
	h := wasmDial(
		unsafe.StringData(url), int32(len(url)), int32(len(url)),
		msgID, openID, closeID, errID,
	)
	return Conn(h)
}

func Send(conn Conn, msg string) (ok bool) {
	return wasmSend(int32(conn), unsafe.StringData(msg), int32(len(msg)), int32(len(msg))) != 0
}

func Close(conn Conn) {
	wasmClose(int32(conn))
}

func ReadyState(conn Conn) (n int32) {
	return wasmReadyState(int32(conn))
}