//go:build wasip1

package rudder

import "unsafe"

//go:wasmimport rudder_v1 input_len
func importInputLength() uint32

//go:wasmimport rudder_v1 input
func importInput(pointer unsafe.Pointer)

//go:wasmimport rudder_v1 call
func importCall(pointer unsafe.Pointer, length uint32) uint32

//go:wasmimport rudder_v1 result
func importResult(pointer unsafe.Pointer)

//go:wasmimport rudder_v1 output
func importOutput(pointer unsafe.Pointer, length uint32)

//go:wasmexport handle
func handle() {
	runHandle()
}

//go:wasmexport describe
func describe() {
	runDescribe()
}

func readInput() []byte {
	input := make([]byte, importInputLength())
	importInput(unsafe.Pointer(unsafe.SliceData(input)))
	return input
}

func hostCall(request []byte) []byte {
	response := make([]byte, importCall(unsafe.Pointer(unsafe.SliceData(request)), uint32(len(request))))
	importResult(unsafe.Pointer(unsafe.SliceData(response)))
	return response
}

func writeOutput(body []byte) {
	importOutput(unsafe.Pointer(unsafe.SliceData(body)), uint32(len(body)))
}