multi: enable per-peer premium configuration

Allow setting different premium values for BTC and LBTC.

This change also enables users to configure individual premiums for
each peer, providing more granular control over pricing and
liquidity.

- Added separate premium fields for BTC and LBTC.
- Implemented logic to apply peer-specific premiums.

clightning/clightning_commands.go

@@ -628,9 +628,11 @@ func (l *ListPeers) Call() (jrpc2.Result, error) {
 					SatsOut:  ReceiverSatsOut,
 					SatsIn:   ReceiverSatsIn,
 				},
-				PaidFee:               paidFees,
-				SwapInPremiumRatePpm:  p.SwapInPremiumRatePPM,
-				SwapOutPremiumRatePpm: p.SwapOutPremiumRatePPM,
+				PaidFee:                   paidFees,
+				BTCSwapInPremiumRatePPM:   p.BTCSwapInPremiumRatePPM,
+				BTCSwapOutPremiumRatePPM:  p.BTCSwapOutPremiumRatePPM,
+				LBTCSwapInPremiumRatePPM:  p.LBTCSwapInPremiumRatePPM,
+				LBTCSwapOutPremiumRatePPM: p.LBTCSwapOutPremiumRatePPM,
 			}
 			channels, err := l.cl.glightning.ListChannelsBySource(peer.Id)
 			if err != nil {
@@ -1115,15 +1117,17 @@ type SwapStats struct {
 }
 
 type PeerSwapPeer struct {
-	NodeId                string                 `json:"nodeid"`
-	SwapsAllowed          bool                   `json:"swaps_allowed"`
-	SupportedAssets       []string               `json:"supported_assets"`
-	Channels              []*PeerSwapPeerChannel `json:"channels"`
-	AsSender              *SwapStats             `json:"sent,omitempty"`
-	AsReceiver            *SwapStats             `json:"received,omitempty"`
-	PaidFee               uint64                 `json:"total_fee_paid,omitempty"`
-	SwapInPremiumRatePpm  int64
-	SwapOutPremiumRatePpm int64
+	NodeId                    string                 `json:"nodeid"`
+	SwapsAllowed              bool                   `json:"swaps_allowed"`
+	SupportedAssets           []string               `json:"supported_assets"`
+	Channels                  []*PeerSwapPeerChannel `json:"channels"`
+	AsSender                  *SwapStats             `json:"sent,omitempty"`
+	AsReceiver                *SwapStats             `json:"received,omitempty"`
+	PaidFee                   uint64                 `json:"total_fee_paid,omitempty"`
+	BTCSwapInPremiumRatePPM   int64                  `json:"btc_swap_in_premium_rate_ppm"`
+	BTCSwapOutPremiumRatePPM  int64                  `json:"btc_swap_out_premium_rate_ppm"`
+	LBTCSwapInPremiumRatePPM  int64                  `json:"lbtc_swap_in_premium_rate_ppm"`
+	LBTCSwapOutPremiumRatePPM int64                  `json:"lbtc_swap_out_premium_rate_ppm"`
 }
 
 // checkFeatures checks if a node runs the peerswap Plugin

go.mod

@@ -157,6 +157,7 @@ require (
 	github.com/lightningnetwork/lnd/ticker v1.1.0 // indirect
 	github.com/lightningnetwork/lnd/tlv v1.0.3 // indirect
 	github.com/samber/lo v1.47.0
+	gopkg.in/ini.v1 v1.67.0
 )
 
 // This fork contains some options we need to reconnect to lnd.

go.sum

@@ -188,8 +188,6 @@ github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/dvyukov/go-fuzz v0.0.0-20220726122315-1d375ef9f9f6 h1:sE4tvxWw01v7K3MAHwKF2UF3xQbgy23PRURntuV1CkU=
 github.com/dvyukov/go-fuzz v0.0.0-20220726122315-1d375ef9f9f6/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
-github.com/elementsproject/glightning v0.0.0-20241218050901-3885803d9ee1 h1:E6+AMjkLPqdmd26ORsJa/glxiiiNAluosVsNY/sLJPw=
-github.com/elementsproject/glightning v0.0.0-20241218050901-3885803d9ee1/go.mod h1:YAdIeSyx8VEhDCtEaGOJLmWNpPaQ3x4vYSAj9Vrppdo=
 github.com/elementsproject/glightning v0.0.0-20241218232330-5d69c660a74c h1:R4SOjU755MzmyedUIHlDIVc0uGZHnKVULKD0dkfJf88=
 github.com/elementsproject/glightning v0.0.0-20241218232330-5d69c660a74c/go.mod h1:YAdIeSyx8VEhDCtEaGOJLmWNpPaQ3x4vYSAj9Vrppdo=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -1169,6 +1167,8 @@ gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMy
 gopkg.in/httprequest.v1 v1.2.0/go.mod h1:T61ZUaJLpMnzvoJDO03ZD8yRXD4nZzBeDoW5e9sffjg=
 gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
+gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/juju/environschema.v1 v1.0.0/go.mod h1:WTgU3KXKCVoO9bMmG/4KHzoaRvLeoxfjArpgd1MGWFA=
 gopkg.in/macaroon-bakery.v2 v2.3.0 h1:b40knPgPTke1QLTE8BSYeH7+R/hiIozB1A8CTLYN0Ic=
 gopkg.in/macaroon-bakery.v2 v2.3.0/go.mod h1:/8YhtPARXeRzbpEPLmRB66+gQE8/pzBBkWwg7Vz/guc=

peerswaprpc/format.go

@@ -7,14 +7,18 @@ import (
 
 func GetPolicyMessage(p policy.Policy) *Policy {
 	return &Policy{
-		ReserveOnchainMsat:    p.ReserveOnchainMsat,
-		MinSwapAmountMsat:     p.MinSwapAmountMsat,
-		AcceptAllPeers:        p.AcceptAllPeers,
-		AllowNewSwaps:         p.AllowNewSwaps,
-		AllowlistedPeers:      p.PeerAllowlist,
-		SuspiciousPeerList:    p.SuspiciousPeerList,
-		SwapInPremiumRatePpm:  p.SwapInPremiumRatePPM,
-		SwapOutPremiumRatePpm: p.SwapOutPremiumRatePPM,
+		ReserveOnchainMsat: p.ReserveOnchainMsat,
+		MinSwapAmountMsat:  p.MinSwapAmountMsat,
+		AcceptAllPeers:     p.AcceptAllPeers,
+		AllowNewSwaps:      p.AllowNewSwaps,
+		AllowlistedPeers:   p.PeerAllowlist,
+		SuspiciousPeerList: p.SuspiciousPeerList,
+		DefaultPremium: &Premium{
+			BtcSwapInPremiumRatePpm:   p.GetPremiumRate("", policy.BtcSwapIn),
+			BtcSwapOutPremiumRatePpm:  p.GetPremiumRate("", policy.BtcSwapOut),
+			LbtcSwapInPremiumRatePpm:  p.GetPremiumRate("", policy.LbtcSwapIn),
+			LbtcSwapOutPremiumRatePpm: p.GetPremiumRate("", policy.LbtcSwapOut),
+		},
 	}
 }