// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package xorg

import (
	"context"
	"io"
	"runtime"

	"git.stormux.org/storm/cthulhu/internal/remoteinput"
)

type remoteHelperTarget struct{ target *remoteKeyTarget }

func (target remoteHelperTarget) Apply(name string, pressed bool) error {
	return target.target.apply(name, pressed)
}
func (target remoteHelperTarget) Close() error { return target.target.close() }

// ServeRemoteKeyHelper is for the independent source-built helper executable,
// never the reader event loop. It supplies no consent or production mailbox
// attachment. Physical collision/provenance and native policy gates remain open.
func ServeRemoteKeyHelper(ctx context.Context, epoch uint64, control, lifetime io.ReadCloser, output io.WriteCloser) error {
	if epoch == 0 || ctx == nil || ctx.Err() != nil || control == nil || lifetime == nil || output == nil {
		return remoteinput.ErrProtocol
	}
	runtime.LockOSThread()
	defer runtime.UnlockOSThread()
	target, err := openRemoteKeyTarget()
	if err != nil {
		control.Close()
		lifetime.Close()
		output.Close()
		return remoteinput.ErrTarget
	}
	return remoteinput.Run(ctx, epoch, control, lifetime, output, remoteHelperTarget{target: target})
}