package main

import (
	"smesh.lol/web/common/helpers"
	"smesh.lol/web/common/jsbridge/schnorr"
	"smesh.lol/web/common/nostr"
)

// Identity: key management and signing.

var (
	seckey   [32]byte
	hasKey   bool
	myPubkey string
)

func identitySetKey(hexKey string) {
	// Wipe prior backing before replacing. On JS, seckey = newValue swaps the
	// underlying array reference, leaving the old 32-byte backing abandoned
	// un-wiped.
	clear(seckey[:])
	seckey = hexTo32(hexKey)
	hasKey = true
	pk, ok := schnorr.PubKeyFromSecKey(seckey[:])
	if ok {
		myPubkey = helpers.HexEncode(pk)
	}
}

func identitySetPubkey(hex string) {
	myPubkey = hex
}

func identityClearKey() {
	clear(seckey[:])
	seckey = [32]byte{}
	hasKey = false
	myPubkey = ""
}

func identitySignEvent(ev *nostr.Event) bool {
	if !hasKey {
		return false
	}
	aux := random32()
	return ev.Sign(seckey, aux)
}