limit sell offers to unsigned buy limit then warn within release windows

core/src/main/java/haveno/core/account/witness/AccountAgeWitnessService.java

@@ -433,10 +433,12 @@ public class AccountAgeWitnessService {
             limit = BigInteger.valueOf(MathUtils.roundDoubleToLong(maxTradeLimit.longValueExact() * factor));
         }
 
-        log.debug("limit={}, factor={}, accountAgeWitnessHash={}",
-                limit,
-                factor,
-                Utilities.bytesAsHexString(accountAgeWitness.getHash()));
+        if (accountAgeWitness != null) {
+            log.debug("limit={}, factor={}, accountAgeWitnessHash={}",
+            limit,
+            factor,
+            Utilities.bytesAsHexString(accountAgeWitness.getHash()));
+        }
         return limit;
     }
 
@@ -518,6 +520,15 @@ public class AccountAgeWitnessService {
                 paymentAccount.getPaymentMethod()).longValueExact();
     }
 
+    public long getUnsignedTradeLimit(PaymentMethod paymentMethod, String currencyCode, OfferDirection direction) {
+        return getTradeLimit(paymentMethod.getMaxTradeLimit(currencyCode),
+                currencyCode,
+                null,
+                AccountAge.UNVERIFIED,
+                direction,
+                paymentMethod).longValueExact();
+    }
+
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Verification
     ///////////////////////////////////////////////////////////////////////////////////////////

core/src/main/java/haveno/core/trade/HavenoUtils.java

@@ -44,6 +44,8 @@ import java.security.PrivateKey;
 import java.text.DecimalFormat;
 import java.text.DecimalFormatSymbols;
 import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
 import java.util.Locale;
 import java.util.concurrent.CountDownLatch;
 import javax.annotation.Nullable;
@@ -60,8 +62,13 @@ import org.bitcoinj.core.Coin;
 @Slf4j
 public class HavenoUtils {
 
-    // Use the US locale as a base for all DecimalFormats (commas should be omitted from number strings).
-    public static final DecimalFormatSymbols DECIMAL_FORMAT_SYMBOLS = DecimalFormatSymbols.getInstance(Locale.US);
+    // configurable
+    private static final String RELEASE_DATE = "01-03-2024 00:00:00"; // optionally set to release date of the network in format dd-mm-yyyy to impose temporary limits, etc. e.g. "01-03-2024 00:00:00"
+    public static final int RELEASE_LIMIT_DAYS = 60; // number of days to limit sell offers to max buy limit for new accounts
+    public static final int WARN_ON_OFFER_EXCEEDS_UNSIGNED_BUY_LIMIT_DAYS = 182; // number of days to warn if sell offer exceeds unsigned buy limit
+
+    // non-configurable
+    public static final DecimalFormatSymbols DECIMAL_FORMAT_SYMBOLS = DecimalFormatSymbols.getInstance(Locale.US); // use the US locale as a base for all DecimalFormats (commas should be omitted from number strings)
     public static int XMR_SMALLEST_UNIT_EXPONENT = 12;
     public static final String LOOPBACK_HOST = "127.0.0.1"; // local loopback address to host Monero node
     public static final String LOCALHOST = "localhost";
@@ -70,14 +77,34 @@ public class HavenoUtils {
     public static final DecimalFormat XMR_FORMATTER = new DecimalFormat("##############0.000000000000", DECIMAL_FORMAT_SYMBOLS);
     public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
 
-    // TODO: better way to share references?
-    public static ArbitrationManager arbitrationManager;
+    public static ArbitrationManager arbitrationManager; // TODO: better way to share references?
     public static HavenoSetup havenoSetup;
 
     public static boolean isSeedNode() {
         return havenoSetup == null;
     }
 
+    @SuppressWarnings("unused")
+    public static Date getReleaseDate() {
+        if (RELEASE_DATE == null) return null;
+        try {
+            return DATE_FORMAT.parse(RELEASE_DATE);
+        } catch (Exception e) {
+            log.error("Failed to parse release date: " + RELEASE_DATE, e);
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    public static boolean isReleasedWithinDays(int days) {
+        Date releaseDate = getReleaseDate();
+        if (releaseDate == null) return false;
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(releaseDate);
+        calendar.add(Calendar.DATE, days);
+        Date releaseDatePlusDays = calendar.getTime();
+        return new Date().before(releaseDatePlusDays);
+    }
+
     // ----------------------- CONVERSION UTILS -------------------------------
 
     public static BigInteger coinToAtomicUnits(Coin coin) {

core/src/main/resources/i18n/displayStrings.properties

@@ -412,6 +412,8 @@ popup.warning.tradeLimitDueAccountAgeRestriction.seller=The allowed trade amount
  - The buyer''s account has not been signed by an arbitrator or a peer\n\
  - The time since signing of the buyer''s account is not at least 30 days\n\
  - The payment method for this offer is considered risky for bank chargebacks\n\n{1}
+popup.warning.tradeLimitDueAccountAgeRestriction.seller.releaseLimit=This payment method is temporarily limited to {0} until {1} because all buyers have new accounts.\n\n{2}
+popup.warning.tradeLimitDueAccountAgeRestriction.seller.exceedsUnsignedBuyLimit=Your offer will be limited to buyers with signed and aged accounts because it exceeds {0}.\n\n{1}
 popup.warning.tradeLimitDueAccountAgeRestriction.buyer=The allowed trade amount is limited to {0} because of security restrictions based on the following criteria:\n\
  - Your account has not been signed by an arbitrator or a peer\n\
  - The time since signing of your account is not at least 30 days\n\

desktop/src/main/java/haveno/desktop/app/HavenoApp.java

@@ -380,7 +380,7 @@ public class HavenoApp extends Application implements UncaughtExceptionHandler {
         // if no warning popup has been shown yet, prompt user if they really intend to shut down
         String key = "popup.info.shutDownQuery";
         if (injector.getInstance(Preferences.class).showAgain(key) && !DevEnv.isDevMode()) {
-            new Popup().headLine(Res.get("popup.info.shutDownQuery"))
+            new Popup().headLine(Res.get(key))
                     .actionButtonText(Res.get("shared.yes"))
                     .onAction(() -> resp.complete(true))
                     .closeButtonText(Res.get("shared.no"))

desktop/src/main/java/haveno/desktop/main/offer/MutableOfferDataModel.java

@@ -455,6 +455,12 @@ public abstract class MutableOfferDataModel extends OfferDataModel {
     }
 
     long getMaxTradeLimit() {
+
+        // disallow offers which no buyer can take due to trade limits on release
+        if (HavenoUtils.isReleasedWithinDays(HavenoUtils.RELEASE_LIMIT_DAYS)) {
+            return accountAgeWitnessService.getMyTradeLimit(paymentAccount, tradeCurrencyCode.get(), OfferDirection.BUY);
+        }
+
         if (paymentAccount != null) {
             return accountAgeWitnessService.getMyTradeLimit(paymentAccount, tradeCurrencyCode.get(), direction);
         } else {
@@ -586,6 +592,10 @@ public abstract class MutableOfferDataModel extends OfferDataModel {
     // Getters
     ///////////////////////////////////////////////////////////////////////////////////////////
 
+    public BigInteger getMaxUnsignedBuyLimit() {
+        return BigInteger.valueOf(accountAgeWitnessService.getUnsignedTradeLimit(paymentAccount.getPaymentMethod(), tradeCurrencyCode.get(), OfferDirection.BUY));
+    }
+
     protected ReadOnlyObjectProperty<BigInteger> getAmount() {
         return amount;
     }

desktop/src/main/java/haveno/desktop/main/offer/MutableOfferView.java

@@ -1012,7 +1012,24 @@ public abstract class MutableOfferView<M extends MutableOfferViewModel<?>> exten
 
         nextButton.setOnAction(e -> {
             if (model.isPriceInRange()) {
-                onShowPayFundsScreen();
+
+                // warn if sell offer exceeds unsigned buy limit within release window
+                boolean isSellOffer = model.getDataModel().isSellOffer();
+                boolean exceedsUnsignedBuyLimit = model.getDataModel().getAmount().get().compareTo(model.getDataModel().getMaxUnsignedBuyLimit()) > 0;
+                String key = "popup.warning.tradeLimitDueAccountAgeRestriction.seller.exceedsUnsignedBuyLimit";
+                if (isSellOffer && exceedsUnsignedBuyLimit && DontShowAgainLookup.showAgain(key) && HavenoUtils.isReleasedWithinDays(HavenoUtils.WARN_ON_OFFER_EXCEEDS_UNSIGNED_BUY_LIMIT_DAYS)) {
+                    new Popup().information(Res.get(key,
+                                    HavenoUtils.formatXmr(model.getDataModel().getMaxUnsignedBuyLimit(), true),
+                                    Res.get("offerbook.warning.newVersionAnnouncement")))
+                            .closeButtonText(Res.get("shared.cancel"))
+                            .actionButtonText(Res.get("shared.ok"))
+                            .onAction(this::onShowPayFundsScreen)
+                            .width(900)
+                            .dontShowAgainId(key)
+                            .show();
+                } else {
+                    onShowPayFundsScreen();
+                }
             }
         });
     }

desktop/src/main/java/haveno/desktop/main/offer/MutableOfferViewModel.java

@@ -81,6 +81,9 @@ import org.bitcoinj.core.Coin;
 import javax.inject.Inject;
 import javax.inject.Named;
 import java.math.BigInteger;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
 import java.util.concurrent.TimeUnit;
 
 import static javafx.beans.binding.Bindings.createStringBinding;
@@ -692,11 +695,32 @@ public abstract class MutableOfferViewModel<M extends MutableOfferDataModel> ext
                 } else {
                     amount.set(HavenoUtils.formatXmr(xmrValidator.getMaxTradeLimit()));
                     boolean isBuy = dataModel.getDirection() == OfferDirection.BUY;
-                    new Popup().information(Res.get(isBuy ? "popup.warning.tradeLimitDueAccountAgeRestriction.buyer" : "popup.warning.tradeLimitDueAccountAgeRestriction.seller",
-                                    HavenoUtils.formatXmr(OfferRestrictions.TOLERATED_SMALL_TRADE_AMOUNT, true),
-                                    Res.get("offerbook.warning.newVersionAnnouncement")))
-                            .width(900)
-                            .show();
+                    boolean isSellerWithinReleaseWindow = !isBuy && HavenoUtils.isReleasedWithinDays(HavenoUtils.RELEASE_LIMIT_DAYS);
+                    if (isSellerWithinReleaseWindow) {
+                        
+                        // format release date plus days
+                        Date releaseDate = HavenoUtils.getReleaseDate();
+                        Calendar c = Calendar.getInstance();
+                        c.setTime(releaseDate);
+                        c.add(Calendar.DATE, HavenoUtils.RELEASE_LIMIT_DAYS);
+                        Date releaseDatePlusDays = c.getTime();
+                        SimpleDateFormat formatter = new SimpleDateFormat("MMMM d, yyyy");
+                        String releaseDatePlusDaysAsString = formatter.format(releaseDatePlusDays);
+
+                        // popup temporary restriction
+                        new Popup().information(Res.get("popup.warning.tradeLimitDueAccountAgeRestriction.seller.releaseLimit",
+                                HavenoUtils.formatXmr(OfferRestrictions.TOLERATED_SMALL_TRADE_AMOUNT, true),
+                                releaseDatePlusDaysAsString,
+                                Res.get("offerbook.warning.newVersionAnnouncement")))
+                        .width(900)
+                        .show();
+                    } else {
+                        new Popup().information(Res.get(isBuy ? "popup.warning.tradeLimitDueAccountAgeRestriction.buyer" : "popup.warning.tradeLimitDueAccountAgeRestriction.seller",
+                                HavenoUtils.formatXmr(OfferRestrictions.TOLERATED_SMALL_TRADE_AMOUNT, true),
+                                Res.get("offerbook.warning.newVersionAnnouncement")))
+                        .width(900)
+                        .show();
+                    }
                 }
             }
             // We want to trigger a recalculation of the volume

docs/deployment-guide.md

@@ -78,6 +78,16 @@ Keypairs with alert privileges are able to send alerts, e.g. to update the appli
 
 Set the XMR address to collect trade fees in `getTradeFeeAddress()` in HavenoUtils.java.
 
+## Set the network's release date
+
+Optionally set the network's approximate release date by setting `RELEASE_DATE` in HavenoUtils.java.
+
+This will prevent posting sell offers which no buyers can take before any buyer accounts are signed and aged, while the network bootstraps.
+
+After a period (default 60 days), the limit is lifted and sellers can post offers exceeding unsigned buy limits, but they will receive an informational warning for an additional period (default 6 months after release).
+
+The defaults can be adjusted with the related constants in HavenoUtils.java.
+
 ## Create and register arbitrators
 
 Before running the arbitrator, remember that at least one seednode should already be deployed and its address listed in `core/src/main/resources/xmr_<network>.seednodes`.