waku-org/go-waku

//go:build !gowaku_no_rln
// +build !gowaku_no_rln

package main

import (
    "errors"

    "github.com/waku-org/go-waku/waku/v2/node"
    "github.com/waku-org/go-zerokit-rln/rln"
    "go.uber.org/zap"
)

func checkForRLN(logger *zap.Logger, options NodeOptions, nodeOpts *[]node.WakuNodeOption) error {
    if options.RLNRelay.Enable {
        if !options.Relay.Enable {
            return errors.New("waku relay is required to enable RLN relay")
        }

        if !options.RLNRelay.Dynamic {
            *nodeOpts = append(*nodeOpts, node.WithStaticRLNRelay((*rln.MembershipIndex)(options.RLNRelay.MembershipIndex), nil))
        } else {
            // TODO: too many parameters in this function
            // consider passing a config struct instead
            *nodeOpts = append(*nodeOpts, node.WithDynamicRLNRelay(
                options.RLNRelay.CredentialsPath,
                options.RLNRelay.CredentialsPassword,
                options.RLNRelay.TreePath,
                options.RLNRelay.MembershipContractAddress,
                options.RLNRelay.MembershipIndex,
                nil,
                options.RLNRelay.ETHClientAddress,
            ))
        }
    }

    return nil
}