//go:build wasm
//:build wasm

package bc

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

//:wasmimport bridge bc_open
func wasmOpen(namePtr *byte, nameLen int32, nameCap int32, cbID int32) (n int32)

//:wasmimport bridge bc_send
func wasmSend(handle int32, msgPtr *byte, msgLen int32, msgCap int32)

//:wasmimport bridge bc_close
func wasmClose(handle int32)

func Open(name string, onMessage func(string)) (b BC) {
	cbID := callback.RegisterS(onMessage)
	return BC(wasmOpen(unsafe.StringData(name), int32(len(name)), int32(len(name)), cbID))
}

func Send(bc BC, msg string) {
	wasmSend(int32(bc), unsafe.StringData(msg), int32(len(msg)), int32(len(msg)))
}

func Close(bc BC) {
	wasmClose(int32(bc))
}