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get available local balance

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This commit is contained in:
Carsten Otto
2021-11-12 17:35:05 +01:00
parent def458ebbb
commit a746dfd664
11 changed files with 204 additions and 18 deletions
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11
application/src/main/java/de/cotto/lndmanagej/controller/LegacyController.java
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@@ -4,6 +4,7 @@ import de.cotto.lndmanagej.model.Channel;
import de.cotto.lndmanagej.model.ChannelId;
import de.cotto.lndmanagej.model.LocalChannel;
import de.cotto.lndmanagej.model.Pubkey;
import de.cotto.lndmanagej.service.BalanceService;
import de.cotto.lndmanagej.service.ChannelService;
import de.cotto.lndmanagej.service.FeeService;
import de.cotto.lndmanagej.service.NodeService;
@@ -25,17 +26,20 @@ public class LegacyController {
private final ChannelService channelService;
private final OwnNodeService ownNodeService;
private final FeeService feeService;
private final BalanceService balanceService;
public LegacyController(
NodeService nodeService,
ChannelService channelService,
OwnNodeService ownNodeService,
FeeService feeService
FeeService feeService,
BalanceService balanceService
) {
this.nodeService = nodeService;
this.channelService = channelService;
this.ownNodeService = ownNodeService;
this.feeService = feeService;
this.balanceService = balanceService;
}
@GetMapping("/node/{pubkey}/alias")
@@ -115,6 +119,11 @@ public class LegacyController {
return feeService.getOutgoingBaseFee(channelId).milliSatoshis();
}
@GetMapping("/channel/{channelId}/available-local-balance")
public long getAvailableLocalBalance(ChannelId channelId) {
return balanceService.getAvailableLocalBalance(channelId).satoshis();
}
private Stream<ChannelId> getOpenChannelIdsSorted() {
return channelService.getOpenChannels().stream()
.map(Channel::getId)

34
application/src/main/java/de/cotto/lndmanagej/service/BalanceService.java Normal file
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@@ -0,0 +1,34 @@
package de.cotto.lndmanagej.service;
import de.cotto.lndmanagej.grpc.GrpcChannels;
import de.cotto.lndmanagej.model.ChannelId;
import de.cotto.lndmanagej.model.Coins;
import de.cotto.lndmanagej.model.LocalChannel;
import org.springframework.stereotype.Component;
@Component
public class BalanceService {
private final GrpcChannels grpcChannels;
public BalanceService(GrpcChannels grpcChannels) {
this.grpcChannels = grpcChannels;
}
public Coins getLocalBalance(ChannelId channelId) {
return grpcChannels.getChannel(channelId).map(LocalChannel::getLocalBalance).orElse(Coins.NONE);
}
public Coins getLocalReserve(ChannelId channelId) {
return grpcChannels.getChannel(channelId).map(LocalChannel::getLocalReserve).orElse(Coins.NONE);
}
public Coins getAvailableLocalBalance(ChannelId channelId) {
Coins available = grpcChannels.getChannel(channelId)
.map(c -> c.getLocalBalance().subtract(c.getLocalReserve()))
.orElse(Coins.NONE);
if (available.isNegative()) {
return Coins.NONE;
}
return available;
}
}