Merge branch 'claude/zealous-nobel-7dabeb'

apps/app_seeds/lib/data/export_import/inventory_json_codec.dart

@@ -79,6 +79,8 @@ class InventoryJsonCodec {
             'originPlace': l.originPlace,
             'abundance': l.abundance?.name,
             'preservationFormat': l.preservationFormat?.name,
+            'priceAmount': l.priceAmount,
+            'priceCurrency': l.priceCurrency,
           },
       ],
       'vernacularNames': [
@@ -338,6 +340,8 @@ class InventoryJsonCodec {
             PreservationFormat.values,
             m['preservationFormat'],
           ),
+          priceAmount: (m['priceAmount'] as num?)?.toDouble(),
+          priceCurrency: m['priceCurrency'] as String?,
         );
       }),
       vernacularNames: _rows(root, 'vernacularNames', (m) {

apps/app_seeds/lib/data/variety_repository.dart

@@ -226,6 +226,8 @@ class ShareableLot extends Equatable {
     this.category,
     this.harvestYear,
     this.isOrganic = false,
+    this.priceAmount,
+    this.priceCurrency,
   });
 
   final String lotId;
@@ -246,9 +248,23 @@ class ShareableLot extends Equatable {
   /// filter the market for it.
   final bool isOrganic;
 
+  /// Asking price, only populated for [OfferStatus.sell] lots. Null amount on
+  /// a sale means "price to be agreed" — the offer publishes without a price.
+  final double? priceAmount;
+  final String? priceCurrency;
+
   @override
-  List<Object?> get props =>
+  List<Object?> get props => [
-      [lotId, varietyId, summary, offerStatus, category, harvestYear, isOrganic];
+    lotId,
+    varietyId,
+    summary,
+    offerStatus,
+    category,
+    harvestYear,
+    isOrganic,
+    priceAmount,
+    priceCurrency,
+  ];
 }
 
 /// One germination test on a lot; [rate] is derived (0..1), null when it can't
@@ -322,6 +338,8 @@ class VarietyLot extends Equatable {
     this.abundance,
     this.preservationFormat,
     this.offerStatus = OfferStatus.private,
+    this.priceAmount,
+    this.priceCurrency,
     this.germinationTests = const [],
     this.conditionChecks = const [],
   });
@@ -354,6 +372,11 @@ class VarietyLot extends Equatable {
   /// the network is Block 2.
   final OfferStatus offerStatus;
 
+  /// Asking price, meaningful when [offerStatus] is `sell`. Null amount means
+  /// "price to be agreed".
+  final double? priceAmount;
+  final String? priceCurrency;
+
   final List<GerminationEntry> germinationTests;
 
   /// Storage-condition checks, most-recent first (`conditionChecks.first` = last).
@@ -377,6 +400,8 @@ class VarietyLot extends Equatable {
     abundance,
     preservationFormat,
     offerStatus,
+    priceAmount,
+    priceCurrency,
     germinationTests,
     conditionChecks,
   ];
@@ -1174,7 +1199,10 @@ class VarietyRepository {
   Future<({String id, String? family})?> _autoClassifyFromLabel(
     String label,
   ) async {
-    final speciesId = matchSpeciesInLabel(label, await _speciesNamesForMatching());
+    final speciesId = matchSpeciesInLabel(
+      label,
+      await _speciesNamesForMatching(),
+    );
     if (speciesId == null) return null;
     final species = await (_db.select(
       _db.species,
@@ -1281,9 +1309,12 @@ class VarietyRepository {
     Abundance? abundance,
     PreservationFormat? preservationFormat,
     OfferStatus offerStatus = OfferStatus.private,
+    double? priceAmount,
+    String? priceCurrency,
   }) async {
     final (created, updated) = await _stamp();
     final id = idGen.newId();
+    final forSale = offerStatus == OfferStatus.sell;
     await _db
         .into(_db.lots)
         .insert(
@@ -1306,6 +1337,8 @@ class VarietyRepository {
             abundance: Value(abundance),
             preservationFormat: Value(preservationFormat),
             offerStatus: Value(offerStatus),
+            priceAmount: Value(forSale ? priceAmount : null),
+            priceCurrency: Value(forSale ? priceCurrency : null),
           ),
         );
     return id;
@@ -1326,8 +1359,13 @@ class VarietyRepository {
     Abundance? abundance,
     PreservationFormat? preservationFormat,
     OfferStatus offerStatus = OfferStatus.private,
+    double? priceAmount,
+    String? priceCurrency,
   }) async {
     final (_, updated) = await _stamp();
+    // Price only makes sense on a lot offered for sale; clearing the sale
+    // status clears the price with it.
+    final forSale = offerStatus == OfferStatus.sell;
     await (_db.update(_db.lots)..where((l) => l.id.equals(lotId))).write(
       LotsCompanion(
         type: Value(type),
@@ -1343,6 +1381,8 @@ class VarietyRepository {
         abundance: Value(abundance),
         preservationFormat: Value(preservationFormat),
         offerStatus: Value(offerStatus),
+        priceAmount: Value(forSale ? priceAmount : null),
+        priceCurrency: Value(forSale ? priceCurrency : null),
         updatedAt: Value(updated),
         lastAuthor: Value(nodeId),
       ),
@@ -1532,16 +1572,13 @@ class VarietyRepository {
             .get();
     final bySpecies = <String, List<({String name, String? language})>>{};
     for (final n in rows) {
-      (bySpecies[n.speciesId] ??= []).add((
+      (bySpecies[n.speciesId] ??= []).add((name: n.name, language: n.language));
-        name: n.name,
-        language: n.language,
-      ));
     }
     final result = <String, String>{};
     for (final entry in bySpecies.entries) {
       final inLocale = entry.value.where((n) => n.language == languageCode);
-      result[entry.key] = (inLocale.isEmpty ? entry.value.first : inLocale.first)
+      result[entry.key] =
-          .name;
+          (inLocale.isEmpty ? entry.value.first : inLocale.first).name;
     }
     return result;
   }
@@ -1580,6 +1617,12 @@ class VarietyRepository {
             category: v.category,
             harvestYear: l.harvestYear,
             isOrganic: v.isOrganic,
+            priceAmount: l.offerStatus == OfferStatus.sell
+                ? l.priceAmount
+                : null,
+            priceCurrency: l.offerStatus == OfferStatus.sell
+                ? l.priceCurrency
+                : null,
           ),
     ];
   }
@@ -1823,7 +1866,9 @@ class VarietyRepository {
   }) async {
     final (created, updated) = await _stamp();
     final id = idGen.newId();
-    await _db.into(_db.plantares).insert(
+    await _db
+        .into(_db.plantares)
+        .insert(
           PlantaresCompanion.insert(
             id: id,
             createdAt: created,
@@ -1842,10 +1887,11 @@ class VarietyRepository {
   }
 
   /// All live commitments, newest first (for the Plantares screen).
-  Stream<List<Plantare>> watchPlantares() => (_db.select(_db.plantares)
+  Stream<List<Plantare>> watchPlantares() =>
-        ..where((p) => p.isDeleted.equals(false))
+      (_db.select(_db.plantares)
-        ..orderBy([(p) => OrderingTerm.desc(p.madeOn)]))
+            ..where((p) => p.isDeleted.equals(false))
-      .watch();
+            ..orderBy([(p) => OrderingTerm.desc(p.madeOn)]))
+          .watch();
 
   /// The commitments recorded against one variety.
   Stream<List<Plantare>> watchPlantaresForVariety(String varietyId) =>
@@ -1863,8 +1909,7 @@ class VarietyRepository {
     await (_db.update(_db.plantares)..where((p) => p.id.equals(id))).write(
       PlantaresCompanion(
         status: Value(status),
-        settledOn:
+        settledOn: Value(status == PlantareStatus.open ? null : now),
-            Value(status == PlantareStatus.open ? null : now),
         updatedAt: Value(updated),
         lastAuthor: Value(nodeId),
       ),
@@ -1896,7 +1941,9 @@ class VarietyRepository {
   }) async {
     final (created, updated) = await _stamp();
     final id = idGen.newId();
-    await _db.into(_db.sales).insert(
+    await _db
+        .into(_db.sales)
+        .insert(
           SalesCompanion.insert(
             id: id,
             createdAt: created,
@@ -1915,10 +1962,11 @@ class VarietyRepository {
   }
 
   /// All live sales, newest first (for the Sales screen).
-  Stream<List<Sale>> watchSales() => (_db.select(_db.sales)
+  Stream<List<Sale>> watchSales() =>
-        ..where((s) => s.isDeleted.equals(false))
+      (_db.select(_db.sales)
-        ..orderBy([(s) => OrderingTerm.desc(s.soldOn)]))
+            ..where((s) => s.isDeleted.equals(false))
-      .watch();
+            ..orderBy([(s) => OrderingTerm.desc(s.soldOn)]))
+          .watch();
 
   /// The sales recorded against one variety.
   Stream<List<Sale>> watchSalesForVariety(String varietyId) =>
@@ -1941,6 +1989,130 @@ class VarietyRepository {
     );
   }
 
+  // --- Hand-over: the one moment seeds change hands --------------------------
+
+  /// Records a hand-over in a single transaction (data-model §2.8: a closed
+  /// deal produces a `Movement` and, optionally, a `Plantare`): the Movement
+  /// (given/received) plus — when they came with it — the Sale (money changed
+  /// hands, informational only, never processed in-app) and the Plantare (a
+  /// return promise), all sharing the same free-text [counterparty].
+  ///
+  /// With nothing optional this is a plain gift: just the Movement.
+  ///
+  /// [gaveAll] is the one-tap "all of it" (the natural path for a whole plant
+  /// or shrub): the movement carries the lot's current quantity, the lot's
+  /// precise quantity drops to 0 and it returns to [OfferStatus.private] —
+  /// withdrawing it from the market on the next publish cycle. Otherwise
+  /// [quantity] says how much of the batch moved (optional).
+  Future<({String movementId, String? saleId, String? plantareId})>
+  recordHandover({
+    required String lotId,
+    required HandoverDirection direction,
+    bool gaveAll = false,
+    Quantity? quantity,
+    String? counterparty,
+    bool withPayment = false,
+    double? paymentAmount,
+    String? paymentCurrency,
+    bool withPromise = false,
+    String? promiseOwedDescription,
+    int? promiseDueBy,
+    String? note,
+  }) async {
+    final gave = direction == HandoverDirection.iGave;
+    return _db.transaction(() async {
+      final lot = await (_db.select(
+        _db.lots,
+      )..where((l) => l.id.equals(lotId))).getSingle();
+
+      // The promise first, so the movement can carry its id — the link the
+      // model reserved for exactly this (data-model §2.4: "a `given` may
+      // carry a Plantare").
+      String? plantareId;
+      if (withPromise) {
+        plantareId = await createPlantare(
+          direction: gave
+              ? PlantareDirection.owedToMe
+              : PlantareDirection.iReturn,
+          varietyId: lot.varietyId,
+          counterparty: counterparty,
+          owedDescription: promiseOwedDescription,
+          dueBy: promiseDueBy,
+        );
+      }
+
+      final movedAll = gaveAll && gave;
+      final lotHasQuantity =
+          lot.quantityKind != null ||
+          lot.quantityPrecise != null ||
+          lot.quantityLabel != null;
+      final movedQuantity = movedAll
+          ? (lotHasQuantity
+                ? Quantity(
+                    kind: _parseKind(lot.quantityKind),
+                    count: lot.quantityPrecise,
+                    label: lot.quantityLabel,
+                  )
+                : null)
+          : quantity;
+      final noteParts = [
+        if (counterparty != null && counterparty.trim().isNotEmpty)
+          counterparty.trim(),
+        if (note != null && note.trim().isNotEmpty) note.trim(),
+      ];
+      final (created, _) = await _stamp();
+      final movementId = idGen.newId();
+      await _db
+          .into(_db.movements)
+          .insert(
+            MovementsCompanion.insert(
+              id: movementId,
+              createdAt: created,
+              lastAuthor: nodeId,
+              lotId: lotId,
+              type: gave ? MovementType.given : MovementType.received,
+              occurredOn: Value(created),
+              quantityKind: Value(movedQuantity?.kind.name),
+              quantityPrecise: Value(movedQuantity?.count?.toDouble()),
+              quantityLabel: Value(movedQuantity?.label),
+              plantareId: Value(plantareId),
+              notes: Value(noteParts.isEmpty ? null : noteParts.join(' — ')),
+            ),
+          );
+
+      if (movedAll) {
+        // The batch is gone: an empty jar (0, same unit) with nothing left to
+        // declare or offer. Price goes with the sale status.
+        final (_, updated) = await _stamp();
+        await (_db.update(_db.lots)..where((l) => l.id.equals(lotId))).write(
+          LotsCompanion(
+            quantityPrecise: const Value(0),
+            abundance: const Value(null),
+            offerStatus: const Value(OfferStatus.private),
+            priceAmount: const Value(null),
+            priceCurrency: const Value(null),
+            updatedAt: Value(updated),
+            lastAuthor: Value(nodeId),
+          ),
+        );
+      }
+
+      String? saleId;
+      if (withPayment) {
+        saleId = await createSale(
+          direction: gave ? SaleDirection.iSold : SaleDirection.iBought,
+          varietyId: lot.varietyId,
+          counterparty: counterparty,
+          amount: paymentAmount,
+          currency: paymentCurrency,
+          note: note,
+        );
+      }
+
+      return (movementId: movementId, saleId: saleId, plantareId: plantareId);
+    });
+  }
+
   /// Snapshots the live inventory (tombstones excluded) for the interchange
   /// export — data-model §7. Includes photo bytes; the JSON codec embeds them
   /// as base64 and the CSV codec ignores them.
@@ -2363,6 +2535,8 @@ class VarietyRepository {
       abundance: l.abundance,
       preservationFormat: l.preservationFormat,
       offerStatus: l.offerStatus,
+      priceAmount: l.priceAmount,
+      priceCurrency: l.priceCurrency,
       germinationTests: germinationTests,
       conditionChecks: conditionChecks,
       quantity: hasQuantity

apps/app_seeds/lib/db/database.dart

@@ -31,7 +31,7 @@ class AppDatabase extends _$AppDatabase {
 
   /// Current schema version; also stamped into interchange exports so an
   /// importer knows which app generation wrote the file (data-model §7).
-  static const int currentSchemaVersion = 10;
+  static const int currentSchemaVersion = 11;
 
   @override
   int get schemaVersion => currentSchemaVersion;
@@ -153,6 +153,16 @@ class AppDatabase extends _$AppDatabase {
           await m.createTable(sales);
         }
       }
+      // v11: asking price on Lots — published with "sell" market offers.
+      // Guarded (see the v7 note above).
+      if (from < 11) {
+        if (!await _hasColumn('lots', 'price_amount')) {
+          await m.addColumn(lots, lots.priceAmount);
+        }
+        if (!await _hasColumn('lots', 'price_currency')) {
+          await m.addColumn(lots, lots.priceCurrency);
+        }
+      }
     },
   );
 

apps/app_seeds/lib/db/database.g.dart

@@ -3266,6 +3266,28 @@ class $LotsTable extends Lots with TableInfo<$LotsTable, Lot> {
       ).withConverter<PreservationFormat?>(
         $LotsTable.$converterpreservationFormatn,
       );
+  static const VerificationMeta _priceAmountMeta = const VerificationMeta(
+    'priceAmount',
+  );
+  @override
+  late final GeneratedColumn<double> priceAmount = GeneratedColumn<double>(
+    'price_amount',
+    aliasedName,
+    true,
+    type: DriftSqlType.double,
+    requiredDuringInsert: false,
+  );
+  static const VerificationMeta _priceCurrencyMeta = const VerificationMeta(
+    'priceCurrency',
+  );
+  @override
+  late final GeneratedColumn<String> priceCurrency = GeneratedColumn<String>(
+    'price_currency',
+    aliasedName,
+    true,
+    type: DriftSqlType.string,
+    requiredDuringInsert: false,
+  );
   @override
   List<GeneratedColumn> get $columns => [
     id,
@@ -3289,6 +3311,8 @@ class $LotsTable extends Lots with TableInfo<$LotsTable, Lot> {
     originPlace,
     abundance,
     preservationFormat,
+    priceAmount,
+    priceCurrency,
   ];
   @override
   String get aliasedName => _alias ?? actualTableName;
@@ -3429,6 +3453,24 @@ class $LotsTable extends Lots with TableInfo<$LotsTable, Lot> {
         ),
       );
     }
+    if (data.containsKey('price_amount')) {
+      context.handle(
+        _priceAmountMeta,
+        priceAmount.isAcceptableOrUnknown(
+          data['price_amount']!,
+          _priceAmountMeta,
+        ),
+      );
+    }
+    if (data.containsKey('price_currency')) {
+      context.handle(
+        _priceCurrencyMeta,
+        priceCurrency.isAcceptableOrUnknown(
+          data['price_currency']!,
+          _priceCurrencyMeta,
+        ),
+      );
+    }
     return context;
   }
 
@@ -3532,6 +3574,14 @@ class $LotsTable extends Lots with TableInfo<$LotsTable, Lot> {
           data['${effectivePrefix}preservation_format'],
         ),
       ),
+      priceAmount: attachedDatabase.typeMapping.read(
+        DriftSqlType.double,
+        data['${effectivePrefix}price_amount'],
+      ),
+      priceCurrency: attachedDatabase.typeMapping.read(
+        DriftSqlType.string,
+        data['${effectivePrefix}price_currency'],
+      ),
     );
   }
 
@@ -3600,6 +3650,17 @@ class Lot extends DataClass implements Insertable<Lot> {
   /// How the (seed) lot is physically conserved — see [PreservationFormat].
   /// Distinct from [storageLocation]. Optional.
   final PreservationFormat? preservationFormat;
+
+  /// Asking price when [offerStatus] is `sell` (data-model §2.8 puts price on
+  /// the Offer; with offer state collapsed onto the Lot, it lives here and is
+  /// published with the market offer). Informational only — money changes
+  /// hands off-platform, never in-app. Null amount on a sell lot means
+  /// "price to be agreed" (the offer publishes without a price).
+  final double? priceAmount;
+
+  /// Free-text currency, like [Sales.currency]: "€", "Ğ1", a local/time
+  /// currency. Never assumed (sharing-model §6).
+  final String? priceCurrency;
   const Lot({
     required this.id,
     required this.createdAt,
@@ -3622,6 +3683,8 @@ class Lot extends DataClass implements Insertable<Lot> {
     this.originPlace,
     this.abundance,
     this.preservationFormat,
+    this.priceAmount,
+    this.priceCurrency,
   });
   @override
   Map<String, Expression> toColumns(bool nullToAbsent) {
@@ -3683,6 +3746,12 @@ class Lot extends DataClass implements Insertable<Lot> {
         $LotsTable.$converterpreservationFormatn.toSql(preservationFormat),
       );
     }
+    if (!nullToAbsent || priceAmount != null) {
+      map['price_amount'] = Variable<double>(priceAmount);
+    }
+    if (!nullToAbsent || priceCurrency != null) {
+      map['price_currency'] = Variable<String>(priceCurrency);
+    }
     return map;
   }
 
@@ -3733,6 +3802,12 @@ class Lot extends DataClass implements Insertable<Lot> {
       preservationFormat: preservationFormat == null && nullToAbsent
           ? const Value.absent()
           : Value(preservationFormat),
+      priceAmount: priceAmount == null && nullToAbsent
+          ? const Value.absent()
+          : Value(priceAmount),
+      priceCurrency: priceCurrency == null && nullToAbsent
+          ? const Value.absent()
+          : Value(priceCurrency),
     );
   }
 
@@ -3773,6 +3848,8 @@ class Lot extends DataClass implements Insertable<Lot> {
       preservationFormat: $LotsTable.$converterpreservationFormatn.fromJson(
         serializer.fromJson<String?>(json['preservationFormat']),
       ),
+      priceAmount: serializer.fromJson<double?>(json['priceAmount']),
+      priceCurrency: serializer.fromJson<String?>(json['priceCurrency']),
     );
   }
   @override
@@ -3808,6 +3885,8 @@ class Lot extends DataClass implements Insertable<Lot> {
       'preservationFormat': serializer.toJson<String?>(
         $LotsTable.$converterpreservationFormatn.toJson(preservationFormat),
       ),
+      'priceAmount': serializer.toJson<double?>(priceAmount),
+      'priceCurrency': serializer.toJson<String?>(priceCurrency),
     };
   }
 
@@ -3833,6 +3912,8 @@ class Lot extends DataClass implements Insertable<Lot> {
     Value<String?> originPlace = const Value.absent(),
     Value<Abundance?> abundance = const Value.absent(),
     Value<PreservationFormat?> preservationFormat = const Value.absent(),
+    Value<double?> priceAmount = const Value.absent(),
+    Value<String?> priceCurrency = const Value.absent(),
   }) => Lot(
     id: id ?? this.id,
     createdAt: createdAt ?? this.createdAt,
@@ -3863,6 +3944,10 @@ class Lot extends DataClass implements Insertable<Lot> {
     preservationFormat: preservationFormat.present
         ? preservationFormat.value
         : this.preservationFormat,
+    priceAmount: priceAmount.present ? priceAmount.value : this.priceAmount,
+    priceCurrency: priceCurrency.present
+        ? priceCurrency.value
+        : this.priceCurrency,
   );
   Lot copyWithCompanion(LotsCompanion data) {
     return Lot(
@@ -3915,6 +4000,12 @@ class Lot extends DataClass implements Insertable<Lot> {
       preservationFormat: data.preservationFormat.present
           ? data.preservationFormat.value
           : this.preservationFormat,
+      priceAmount: data.priceAmount.present
+          ? data.priceAmount.value
+          : this.priceAmount,
+      priceCurrency: data.priceCurrency.present
+          ? data.priceCurrency.value
+          : this.priceCurrency,
     );
   }
 
@@ -3941,7 +4032,9 @@ class Lot extends DataClass implements Insertable<Lot> {
           ..write('originName: $originName, ')
           ..write('originPlace: $originPlace, ')
           ..write('abundance: $abundance, ')
-          ..write('preservationFormat: $preservationFormat')
+          ..write('preservationFormat: $preservationFormat, ')
+          ..write('priceAmount: $priceAmount, ')
+          ..write('priceCurrency: $priceCurrency')
           ..write(')'))
         .toString();
   }
@@ -3969,6 +4062,8 @@ class Lot extends DataClass implements Insertable<Lot> {
     originPlace,
     abundance,
     preservationFormat,
+    priceAmount,
+    priceCurrency,
   ]);
   @override
   bool operator ==(Object other) =>
@@ -3994,7 +4089,9 @@ class Lot extends DataClass implements Insertable<Lot> {
           other.originName == this.originName &&
           other.originPlace == this.originPlace &&
           other.abundance == this.abundance &&
-          other.preservationFormat == this.preservationFormat);
+          other.preservationFormat == this.preservationFormat &&
+          other.priceAmount == this.priceAmount &&
+          other.priceCurrency == this.priceCurrency);
 }
 
 class LotsCompanion extends UpdateCompanion<Lot> {
@@ -4019,6 +4116,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
   final Value<String?> originPlace;
   final Value<Abundance?> abundance;
   final Value<PreservationFormat?> preservationFormat;
+  final Value<double?> priceAmount;
+  final Value<String?> priceCurrency;
   final Value<int> rowid;
   const LotsCompanion({
     this.id = const Value.absent(),
@@ -4042,6 +4141,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
     this.originPlace = const Value.absent(),
     this.abundance = const Value.absent(),
     this.preservationFormat = const Value.absent(),
+    this.priceAmount = const Value.absent(),
+    this.priceCurrency = const Value.absent(),
     this.rowid = const Value.absent(),
   });
   LotsCompanion.insert({
@@ -4066,6 +4167,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
     this.originPlace = const Value.absent(),
     this.abundance = const Value.absent(),
     this.preservationFormat = const Value.absent(),
+    this.priceAmount = const Value.absent(),
+    this.priceCurrency = const Value.absent(),
     this.rowid = const Value.absent(),
   }) : id = Value(id),
        createdAt = Value(createdAt),
@@ -4094,6 +4197,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
     Expression<String>? originPlace,
     Expression<String>? abundance,
     Expression<String>? preservationFormat,
+    Expression<double>? priceAmount,
+    Expression<String>? priceCurrency,
     Expression<int>? rowid,
   }) {
     return RawValuesInsertable({
@@ -4118,6 +4223,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
       if (originPlace != null) 'origin_place': originPlace,
       if (abundance != null) 'abundance': abundance,
       if (preservationFormat != null) 'preservation_format': preservationFormat,
+      if (priceAmount != null) 'price_amount': priceAmount,
+      if (priceCurrency != null) 'price_currency': priceCurrency,
       if (rowid != null) 'rowid': rowid,
     });
   }
@@ -4144,6 +4251,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
     Value<String?>? originPlace,
     Value<Abundance?>? abundance,
     Value<PreservationFormat?>? preservationFormat,
+    Value<double?>? priceAmount,
+    Value<String?>? priceCurrency,
     Value<int>? rowid,
   }) {
     return LotsCompanion(
@@ -4168,6 +4277,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
       originPlace: originPlace ?? this.originPlace,
       abundance: abundance ?? this.abundance,
       preservationFormat: preservationFormat ?? this.preservationFormat,
+      priceAmount: priceAmount ?? this.priceAmount,
+      priceCurrency: priceCurrency ?? this.priceCurrency,
       rowid: rowid ?? this.rowid,
     );
   }
@@ -4250,6 +4361,12 @@ class LotsCompanion extends UpdateCompanion<Lot> {
         ),
       );
     }
+    if (priceAmount.present) {
+      map['price_amount'] = Variable<double>(priceAmount.value);
+    }
+    if (priceCurrency.present) {
+      map['price_currency'] = Variable<String>(priceCurrency.value);
+    }
     if (rowid.present) {
       map['rowid'] = Variable<int>(rowid.value);
     }
@@ -4280,6 +4397,8 @@ class LotsCompanion extends UpdateCompanion<Lot> {
           ..write('originPlace: $originPlace, ')
           ..write('abundance: $abundance, ')
           ..write('preservationFormat: $preservationFormat, ')
+          ..write('priceAmount: $priceAmount, ')
+          ..write('priceCurrency: $priceCurrency, ')
           ..write('rowid: $rowid')
           ..write(')'))
         .toString();
@@ -11663,6 +11782,8 @@ typedef $$LotsTableCreateCompanionBuilder =
       Value<String?> originPlace,
       Value<Abundance?> abundance,
       Value<PreservationFormat?> preservationFormat,
+      Value<double?> priceAmount,
+      Value<String?> priceCurrency,
       Value<int> rowid,
     });
 typedef $$LotsTableUpdateCompanionBuilder =
@@ -11688,6 +11809,8 @@ typedef $$LotsTableUpdateCompanionBuilder =
       Value<String?> originPlace,
       Value<Abundance?> abundance,
       Value<PreservationFormat?> preservationFormat,
+      Value<double?> priceAmount,
+      Value<String?> priceCurrency,
       Value<int> rowid,
     });
 
@@ -11812,6 +11935,16 @@ class $$LotsTableFilterComposer extends Composer<_$AppDatabase, $LotsTable> {
     column: $table.preservationFormat,
     builder: (column) => ColumnWithTypeConverterFilters(column),
   );
+
+  ColumnFilters<double> get priceAmount => $composableBuilder(
+    column: $table.priceAmount,
+    builder: (column) => ColumnFilters(column),
+  );
+
+  ColumnFilters<String> get priceCurrency => $composableBuilder(
+    column: $table.priceCurrency,
+    builder: (column) => ColumnFilters(column),
+  );
 }
 
 class $$LotsTableOrderingComposer extends Composer<_$AppDatabase, $LotsTable> {
@@ -11926,6 +12059,16 @@ class $$LotsTableOrderingComposer extends Composer<_$AppDatabase, $LotsTable> {
     column: $table.preservationFormat,
     builder: (column) => ColumnOrderings(column),
   );
+
+  ColumnOrderings<double> get priceAmount => $composableBuilder(
+    column: $table.priceAmount,
+    builder: (column) => ColumnOrderings(column),
+  );
+
+  ColumnOrderings<String> get priceCurrency => $composableBuilder(
+    column: $table.priceCurrency,
+    builder: (column) => ColumnOrderings(column),
+  );
 }
 
 class $$LotsTableAnnotationComposer
@@ -12030,6 +12173,16 @@ class $$LotsTableAnnotationComposer
     column: $table.preservationFormat,
     builder: (column) => column,
   );
+
+  GeneratedColumn<double> get priceAmount => $composableBuilder(
+    column: $table.priceAmount,
+    builder: (column) => column,
+  );
+
+  GeneratedColumn<String> get priceCurrency => $composableBuilder(
+    column: $table.priceCurrency,
+    builder: (column) => column,
+  );
 }
 
 class $$LotsTableTableManager
@@ -12082,6 +12235,8 @@ class $$LotsTableTableManager
                 Value<Abundance?> abundance = const Value.absent(),
                 Value<PreservationFormat?> preservationFormat =
                     const Value.absent(),
+                Value<double?> priceAmount = const Value.absent(),
+                Value<String?> priceCurrency = const Value.absent(),
                 Value<int> rowid = const Value.absent(),
               }) => LotsCompanion(
                 id: id,
@@ -12105,6 +12260,8 @@ class $$LotsTableTableManager
                 originPlace: originPlace,
                 abundance: abundance,
                 preservationFormat: preservationFormat,
+                priceAmount: priceAmount,
+                priceCurrency: priceCurrency,
                 rowid: rowid,
               ),
           createCompanionCallback:
@@ -12131,6 +12288,8 @@ class $$LotsTableTableManager
                 Value<Abundance?> abundance = const Value.absent(),
                 Value<PreservationFormat?> preservationFormat =
                     const Value.absent(),
+                Value<double?> priceAmount = const Value.absent(),
+                Value<String?> priceCurrency = const Value.absent(),
                 Value<int> rowid = const Value.absent(),
               }) => LotsCompanion.insert(
                 id: id,
@@ -12154,6 +12313,8 @@ class $$LotsTableTableManager
                 originPlace: originPlace,
                 abundance: abundance,
                 preservationFormat: preservationFormat,
+                priceAmount: priceAmount,
+                priceCurrency: priceCurrency,
                 rowid: rowid,
               ),
           withReferenceMapper: (p0) => p0

apps/app_seeds/lib/db/enums.dart

@@ -106,3 +106,10 @@ enum PlantareStatus { open, returned, forgiven }
 /// SEPARATE model from a gift or a Plantare — seed for money (any currency:
 /// €, Ğ1, a local/time currency…). No commission is ever taken on seeds.
 enum SaleDirection { iSold, iBought }
+
+/// Direction of a hand-over — the one moment seeds actually change hands
+/// (data-model §2.8: a closed deal produces a Movement and, optionally, a
+/// Plantare and/or a Sale record). Not stored in a column of its own: it maps
+/// to [MovementType.given]/[MovementType.received] plus the derived directions
+/// of the optional Sale and Plantare rows.
+enum HandoverDirection { iGave, iReceived }

apps/app_seeds/lib/db/tables.dart

@@ -109,6 +109,17 @@ class Lots extends Table with SyncColumns {
   /// Distinct from [storageLocation]. Optional.
   TextColumn get preservationFormat =>
       textEnum<PreservationFormat>().nullable()();
+
+  /// Asking price when [offerStatus] is `sell` (data-model §2.8 puts price on
+  /// the Offer; with offer state collapsed onto the Lot, it lives here and is
+  /// published with the market offer). Informational only — money changes
+  /// hands off-platform, never in-app. Null amount on a sell lot means
+  /// "price to be agreed" (the offer publishes without a price).
+  RealColumn get priceAmount => real().nullable()();
+
+  /// Free-text currency, like [Sales.currency]: "€", "Ğ1", a local/time
+  /// currency. Never assumed (sharing-model §6).
+  TextColumn get priceCurrency => text().nullable()();
 }
 
 /// Optional germination history for a Lot; percent is derived in code.

apps/app_seeds/lib/i18n/ast.i18n.json

@@ -303,6 +303,8 @@
     "add": "¿Compártesla?",
     "title": "¿Compártesla?",
     "nudge": "Tienes a esgaya: podríes compartir un poco.",
+    "price": "Preciu",
+    "priceHint": "Déxalu baleru p'alcordalu depués",
     "private": "Namás pa min",
     "gift": "Pa regalar",
     "exchange": "Pa trocar",
@@ -617,6 +619,19 @@
     "settledSection": "Fechos",
     "removeConfirm": "¿Quitar esti compromisu?"
   },
+  "handover": {
+    "title": "Di o recibí semientes",
+    "help": "Un regalu, un truecu o una venta: apúntalo, con promesa de devolver semiente o ensin ella.",
+    "iGave": "Di semientes",
+    "iReceived": "Recibí semientes",
+    "whichLot": "¿De qué llote?",
+    "howMuch": "¿Cuánto?",
+    "allOfIt": "Too",
+    "partOfIt": "Una parte",
+    "paymentChip": "Hubo perres pel mediu",
+    "promiseGave": "Van devolveme semiente",
+    "promiseReceived": "Voi devolver semiente"
+  },
   "sale": {
     "title": "Ventes",
     "help": "Rexistra semilla vendida o mercada — dineru, Ğ1 o cualquier moneda. Un modelu aparte del regalu y del Plantare. Enxamás se cobra comisión poles semilles.",

apps/app_seeds/lib/i18n/en.i18n.json

@@ -304,6 +304,8 @@
     "add": "Do you share it?",
     "title": "Do you share it?",
     "nudge": "You have plenty — you could share some.",
+    "price": "Price",
+    "priceHint": "Leave it empty to agree it later",
     "private": "Just for me",
     "gift": "To give away",
     "exchange": "To swap",
@@ -620,6 +622,19 @@
     "settledSection": "Done",
     "removeConfirm": "Remove this commitment?"
   },
+  "handover": {
+    "title": "Seeds changed hands",
+    "help": "A gift, a swap or a sale — note it down, with a return promise or without.",
+    "iGave": "I gave seeds",
+    "iReceived": "I received seeds",
+    "whichLot": "Which batch?",
+    "howMuch": "How much?",
+    "allOfIt": "All of it",
+    "partOfIt": "A part",
+    "paymentChip": "Money changed hands",
+    "promiseGave": "They'll return me seed",
+    "promiseReceived": "I'll return seed"
+  },
   "sale": {
     "title": "Sales",
     "help": "Record seed you sold or bought — money, Ğ1, or any currency. A separate model from a gift or a Plantare. No commission is ever taken on seeds.",

apps/app_seeds/lib/i18n/es.i18n.json

@@ -303,6 +303,8 @@
     "add": "¿La compartes?",
     "title": "¿La compartes?",
     "nudge": "Tienes de sobra: podrías compartir un poco.",
+    "price": "Precio",
+    "priceHint": "Déjalo vacío para acordarlo luego",
     "private": "Solo para mí",
     "gift": "Para regalar",
     "exchange": "Para intercambiar",
@@ -619,6 +621,19 @@
     "settledSection": "Hechos",
     "removeConfirm": "¿Quitar este compromiso?"
   },
+  "handover": {
+    "title": "Di o recibí semillas",
+    "help": "Un regalo, un trueque o una venta: apúntalo, con promesa de devolver semilla o sin ella.",
+    "iGave": "Di semillas",
+    "iReceived": "Recibí semillas",
+    "whichLot": "¿De qué lote?",
+    "howMuch": "¿Cuánto?",
+    "allOfIt": "Todo",
+    "partOfIt": "Una parte",
+    "paymentChip": "Hubo dinero por medio",
+    "promiseGave": "Me devolverán semilla",
+    "promiseReceived": "Devolveré semilla"
+  },
   "sale": {
     "title": "Ventas",
     "help": "Registra semilla vendida o comprada — dinero, Ğ1 o cualquier moneda. Un modelo aparte del regalo y del Plantare. Nunca se cobra comisión por las semillas.",

apps/app_seeds/lib/i18n/pt.i18n.json

@@ -300,6 +300,8 @@
     "add": "Partilhas esta?",
     "title": "Partilhas esta?",
     "nudge": "Tens de sobra: podias partilhar um pouco.",
+    "price": "Preço",
+    "priceHint": "Deixa vazio para combinar depois",
     "private": "Só para mim",
     "gift": "Para dar",
     "exchange": "Para trocar",
@@ -616,6 +618,19 @@
     "settledSection": "Feitos",
     "removeConfirm": "Remover este compromisso?"
   },
+  "handover": {
+    "title": "Dei ou recebi sementes",
+    "help": "Uma oferta, uma troca ou uma venda: anota-o, com promessa de devolver semente ou sem ela.",
+    "iGave": "Dei sementes",
+    "iReceived": "Recebi sementes",
+    "whichLot": "De que lote?",
+    "howMuch": "Quanto?",
+    "allOfIt": "Tudo",
+    "partOfIt": "Uma parte",
+    "paymentChip": "Houve dinheiro pelo meio",
+    "promiseGave": "Vão devolver-me semente",
+    "promiseReceived": "Vou devolver semente"
+  },
   "sale": {
     "title": "Vendas",
     "help": "Regista semente vendida ou comprada — dinheiro, Ğ1 ou qualquer moeda. Um modelo separado do presente e do Plantare. Nunca se cobra comissão pelas sementes.",

apps/app_seeds/lib/i18n/strings.g.dart

@@ -4,9 +4,9 @@
 /// To regenerate, run: `dart run slang`
 ///
 /// Locales: 4
-/// Strings: 1968 (492 per locale)
+/// Strings: 2020 (505 per locale)
 ///
-/// Built on 2026-07-11 at 05:50 UTC
+/// Built on 2026-07-11 at 06:00 UTC
 
 // coverage:ignore-file
 // ignore_for_file: type=lint, unused_import

apps/app_seeds/lib/i18n/strings_ast.g.dart

@@ -80,6 +80,7 @@ class TranslationsAst extends Translations with BaseTranslations<AppLocale, Tran
 	@override late final _Translations$wot$ast wot = _Translations$wot$ast._(_root);
 	@override late final _Translations$notifications$ast notifications = _Translations$notifications$ast._(_root);
 	@override late final _Translations$plantare$ast plantare = _Translations$plantare$ast._(_root);
+	@override late final _Translations$handover$ast handover = _Translations$handover$ast._(_root);
 	@override late final _Translations$sale$ast sale = _Translations$sale$ast._(_root);
 }
 
@@ -547,6 +548,8 @@ class _Translations$share$ast extends Translations$share$en {
 	@override String get add => '¿Compártesla?';
 	@override String get title => '¿Compártesla?';
 	@override String get nudge => 'Tienes a esgaya: podríes compartir un poco.';
+	@override String get price => 'Preciu';
+	@override String get priceHint => 'Déxalu baleru p\'alcordalu depués';
 	@override String get private => 'Namás pa min';
 	@override String get gift => 'Pa regalar';
 	@override String get exchange => 'Pa trocar';
@@ -895,6 +898,26 @@ class _Translations$plantare$ast extends Translations$plantare$en {
 	@override String get removeConfirm => '¿Quitar esti compromisu?';
 }
 
+// Path: handover
+class _Translations$handover$ast extends Translations$handover$en {
+	_Translations$handover$ast._(TranslationsAst root) : this._root = root, super.internal(root);
+
+	final TranslationsAst _root; // ignore: unused_field
+
+	// Translations
+	@override String get title => 'Di o recibí semientes';
+	@override String get help => 'Un regalu, un truecu o una venta: apúntalo, con promesa de devolver semiente o ensin ella.';
+	@override String get iGave => 'Di semientes';
+	@override String get iReceived => 'Recibí semientes';
+	@override String get whichLot => '¿De qué llote?';
+	@override String get howMuch => '¿Cuánto?';
+	@override String get allOfIt => 'Too';
+	@override String get partOfIt => 'Una parte';
+	@override String get paymentChip => 'Hubo perres pel mediu';
+	@override String get promiseGave => 'Van devolveme semiente';
+	@override String get promiseReceived => 'Voi devolver semiente';
+}
+
 // Path: sale
 class _Translations$sale$ast extends Translations$sale$en {
 	_Translations$sale$ast._(TranslationsAst root) : this._root = root, super.internal(root);
@@ -1501,6 +1524,8 @@ extension on TranslationsAst {
 			'share.add' => '¿Compártesla?',
 			'share.title' => '¿Compártesla?',
 			'share.nudge' => 'Tienes a esgaya: podríes compartir un poco.',
+			'share.price' => 'Preciu',
+			'share.priceHint' => 'Déxalu baleru p\'alcordalu depués',
 			'share.private' => 'Namás pa min',
 			'share.gift' => 'Pa regalar',
 			'share.exchange' => 'Pa trocar',
@@ -1736,6 +1761,17 @@ extension on TranslationsAst {
 			'plantare.openSection' => 'Pendientes',
 			'plantare.settledSection' => 'Fechos',
 			'plantare.removeConfirm' => '¿Quitar esti compromisu?',
+			'handover.title' => 'Di o recibí semientes',
+			'handover.help' => 'Un regalu, un truecu o una venta: apúntalo, con promesa de devolver semiente o ensin ella.',
+			'handover.iGave' => 'Di semientes',
+			'handover.iReceived' => 'Recibí semientes',
+			'handover.whichLot' => '¿De qué llote?',
+			'handover.howMuch' => '¿Cuánto?',
+			'handover.allOfIt' => 'Too',
+			'handover.partOfIt' => 'Una parte',
+			'handover.paymentChip' => 'Hubo perres pel mediu',
+			'handover.promiseGave' => 'Van devolveme semiente',
+			'handover.promiseReceived' => 'Voi devolver semiente',
 			'sale.title' => 'Ventes',
 			'sale.help' => 'Rexistra semilla vendida o mercada — dineru, Ğ1 o cualquier moneda. Un modelu aparte del regalu y del Plantare. Enxamás se cobra comisión poles semilles.',
 			'sale.add' => 'Rexistrar venta',

apps/app_seeds/lib/i18n/strings_en.g.dart

@@ -81,6 +81,7 @@ class Translations with BaseTranslations<AppLocale, Translations> {
 	late final Translations$wot$en wot = Translations$wot$en.internal(_root);
 	late final Translations$notifications$en notifications = Translations$notifications$en.internal(_root);
 	late final Translations$plantare$en plantare = Translations$plantare$en.internal(_root);
+	late final Translations$handover$en handover = Translations$handover$en.internal(_root);
 	late final Translations$sale$en sale = Translations$sale$en.internal(_root);
 }
 
@@ -988,6 +989,12 @@ class Translations$share$en {
 	/// en: 'You have plenty — you could share some.'
 	String get nudge => 'You have plenty — you could share some.';
 
+	/// en: 'Price'
+	String get price => 'Price';
+
+	/// en: 'Leave it empty to agree it later'
+	String get priceHint => 'Leave it empty to agree it later';
+
 	/// en: 'Just for me'
 	String get private => 'Just for me';
 
@@ -1716,6 +1723,48 @@ class Translations$plantare$en {
 	String get removeConfirm => 'Remove this commitment?';
 }
 
+// Path: handover
+class Translations$handover$en {
+	Translations$handover$en.internal(this._root);
+
+	final Translations _root; // ignore: unused_field
+
+	// Translations
+
+	/// en: 'Seeds changed hands'
+	String get title => 'Seeds changed hands';
+
+	/// en: 'A gift, a swap or a sale — note it down, with a return promise or without.'
+	String get help => 'A gift, a swap or a sale — note it down, with a return promise or without.';
+
+	/// en: 'I gave seeds'
+	String get iGave => 'I gave seeds';
+
+	/// en: 'I received seeds'
+	String get iReceived => 'I received seeds';
+
+	/// en: 'Which batch?'
+	String get whichLot => 'Which batch?';
+
+	/// en: 'How much?'
+	String get howMuch => 'How much?';
+
+	/// en: 'All of it'
+	String get allOfIt => 'All of it';
+
+	/// en: 'A part'
+	String get partOfIt => 'A part';
+
+	/// en: 'Money changed hands'
+	String get paymentChip => 'Money changed hands';
+
+	/// en: 'They'll return me seed'
+	String get promiseGave => 'They\'ll return me seed';
+
+	/// en: 'I'll return seed'
+	String get promiseReceived => 'I\'ll return seed';
+}
+
 // Path: sale
 class Translations$sale$en {
 	Translations$sale$en.internal(this._root);
@@ -2473,6 +2522,8 @@ extension on Translations {
 			'share.add' => 'Do you share it?',
 			'share.title' => 'Do you share it?',
 			'share.nudge' => 'You have plenty — you could share some.',
+			'share.price' => 'Price',
+			'share.priceHint' => 'Leave it empty to agree it later',
 			'share.private' => 'Just for me',
 			'share.gift' => 'To give away',
 			'share.exchange' => 'To swap',
@@ -2710,6 +2761,17 @@ extension on Translations {
 			'plantare.openSection' => 'Open',
 			'plantare.settledSection' => 'Done',
 			'plantare.removeConfirm' => 'Remove this commitment?',
+			'handover.title' => 'Seeds changed hands',
+			'handover.help' => 'A gift, a swap or a sale — note it down, with a return promise or without.',
+			'handover.iGave' => 'I gave seeds',
+			'handover.iReceived' => 'I received seeds',
+			'handover.whichLot' => 'Which batch?',
+			'handover.howMuch' => 'How much?',
+			'handover.allOfIt' => 'All of it',
+			'handover.partOfIt' => 'A part',
+			'handover.paymentChip' => 'Money changed hands',
+			'handover.promiseGave' => 'They\'ll return me seed',
+			'handover.promiseReceived' => 'I\'ll return seed',
 			'sale.title' => 'Sales',
 			'sale.help' => 'Record seed you sold or bought — money, Ğ1, or any currency. A separate model from a gift or a Plantare. No commission is ever taken on seeds.',
 			'sale.add' => 'Record a sale',

apps/app_seeds/lib/i18n/strings_es.g.dart

@@ -80,6 +80,7 @@ class TranslationsEs extends Translations with BaseTranslations<AppLocale, Trans
 	@override late final _Translations$wot$es wot = _Translations$wot$es._(_root);
 	@override late final _Translations$notifications$es notifications = _Translations$notifications$es._(_root);
 	@override late final _Translations$plantare$es plantare = _Translations$plantare$es._(_root);
+	@override late final _Translations$handover$es handover = _Translations$handover$es._(_root);
 	@override late final _Translations$sale$es sale = _Translations$sale$es._(_root);
 }
 
@@ -547,6 +548,8 @@ class _Translations$share$es extends Translations$share$en {
 	@override String get add => '¿La compartes?';
 	@override String get title => '¿La compartes?';
 	@override String get nudge => 'Tienes de sobra: podrías compartir un poco.';
+	@override String get price => 'Precio';
+	@override String get priceHint => 'Déjalo vacío para acordarlo luego';
 	@override String get private => 'Solo para mí';
 	@override String get gift => 'Para regalar';
 	@override String get exchange => 'Para intercambiar';
@@ -897,6 +900,26 @@ class _Translations$plantare$es extends Translations$plantare$en {
 	@override String get removeConfirm => '¿Quitar este compromiso?';
 }
 
+// Path: handover
+class _Translations$handover$es extends Translations$handover$en {
+	_Translations$handover$es._(TranslationsEs root) : this._root = root, super.internal(root);
+
+	final TranslationsEs _root; // ignore: unused_field
+
+	// Translations
+	@override String get title => 'Di o recibí semillas';
+	@override String get help => 'Un regalo, un trueque o una venta: apúntalo, con promesa de devolver semilla o sin ella.';
+	@override String get iGave => 'Di semillas';
+	@override String get iReceived => 'Recibí semillas';
+	@override String get whichLot => '¿De qué lote?';
+	@override String get howMuch => '¿Cuánto?';
+	@override String get allOfIt => 'Todo';
+	@override String get partOfIt => 'Una parte';
+	@override String get paymentChip => 'Hubo dinero por medio';
+	@override String get promiseGave => 'Me devolverán semilla';
+	@override String get promiseReceived => 'Devolveré semilla';
+}
+
 // Path: sale
 class _Translations$sale$es extends Translations$sale$en {
 	_Translations$sale$es._(TranslationsEs root) : this._root = root, super.internal(root);
@@ -1503,6 +1526,8 @@ extension on TranslationsEs {
 			'share.add' => '¿La compartes?',
 			'share.title' => '¿La compartes?',
 			'share.nudge' => 'Tienes de sobra: podrías compartir un poco.',
+			'share.price' => 'Precio',
+			'share.priceHint' => 'Déjalo vacío para acordarlo luego',
 			'share.private' => 'Solo para mí',
 			'share.gift' => 'Para regalar',
 			'share.exchange' => 'Para intercambiar',
@@ -1740,6 +1765,17 @@ extension on TranslationsEs {
 			'plantare.openSection' => 'Pendientes',
 			'plantare.settledSection' => 'Hechos',
 			'plantare.removeConfirm' => '¿Quitar este compromiso?',
+			'handover.title' => 'Di o recibí semillas',
+			'handover.help' => 'Un regalo, un trueque o una venta: apúntalo, con promesa de devolver semilla o sin ella.',
+			'handover.iGave' => 'Di semillas',
+			'handover.iReceived' => 'Recibí semillas',
+			'handover.whichLot' => '¿De qué lote?',
+			'handover.howMuch' => '¿Cuánto?',
+			'handover.allOfIt' => 'Todo',
+			'handover.partOfIt' => 'Una parte',
+			'handover.paymentChip' => 'Hubo dinero por medio',
+			'handover.promiseGave' => 'Me devolverán semilla',
+			'handover.promiseReceived' => 'Devolveré semilla',
 			'sale.title' => 'Ventas',
 			'sale.help' => 'Registra semilla vendida o comprada — dinero, Ğ1 o cualquier moneda. Un modelo aparte del regalo y del Plantare. Nunca se cobra comisión por las semillas.',
 			'sale.add' => 'Registrar venta',

apps/app_seeds/lib/i18n/strings_pt.g.dart

@@ -80,6 +80,7 @@ class TranslationsPt extends Translations with BaseTranslations<AppLocale, Trans
 	@override late final _Translations$wot$pt wot = _Translations$wot$pt._(_root);
 	@override late final _Translations$notifications$pt notifications = _Translations$notifications$pt._(_root);
 	@override late final _Translations$plantare$pt plantare = _Translations$plantare$pt._(_root);
+	@override late final _Translations$handover$pt handover = _Translations$handover$pt._(_root);
 	@override late final _Translations$sale$pt sale = _Translations$sale$pt._(_root);
 }
 
@@ -544,6 +545,8 @@ class _Translations$share$pt extends Translations$share$en {
 	@override String get add => 'Partilhas esta?';
 	@override String get title => 'Partilhas esta?';
 	@override String get nudge => 'Tens de sobra: podias partilhar um pouco.';
+	@override String get price => 'Preço';
+	@override String get priceHint => 'Deixa vazio para combinar depois';
 	@override String get private => 'Só para mim';
 	@override String get gift => 'Para dar';
 	@override String get exchange => 'Para trocar';
@@ -894,6 +897,26 @@ class _Translations$plantare$pt extends Translations$plantare$en {
 	@override String get removeConfirm => 'Remover este compromisso?';
 }
 
+// Path: handover
+class _Translations$handover$pt extends Translations$handover$en {
+	_Translations$handover$pt._(TranslationsPt root) : this._root = root, super.internal(root);
+
+	final TranslationsPt _root; // ignore: unused_field
+
+	// Translations
+	@override String get title => 'Dei ou recebi sementes';
+	@override String get help => 'Uma oferta, uma troca ou uma venda: anota-o, com promessa de devolver semente ou sem ela.';
+	@override String get iGave => 'Dei sementes';
+	@override String get iReceived => 'Recebi sementes';
+	@override String get whichLot => 'De que lote?';
+	@override String get howMuch => 'Quanto?';
+	@override String get allOfIt => 'Tudo';
+	@override String get partOfIt => 'Uma parte';
+	@override String get paymentChip => 'Houve dinheiro pelo meio';
+	@override String get promiseGave => 'Vão devolver-me semente';
+	@override String get promiseReceived => 'Vou devolver semente';
+}
+
 // Path: sale
 class _Translations$sale$pt extends Translations$sale$en {
 	_Translations$sale$pt._(TranslationsPt root) : this._root = root, super.internal(root);
@@ -1497,6 +1520,8 @@ extension on TranslationsPt {
 			'share.add' => 'Partilhas esta?',
 			'share.title' => 'Partilhas esta?',
 			'share.nudge' => 'Tens de sobra: podias partilhar um pouco.',
+			'share.price' => 'Preço',
+			'share.priceHint' => 'Deixa vazio para combinar depois',
 			'share.private' => 'Só para mim',
 			'share.gift' => 'Para dar',
 			'share.exchange' => 'Para trocar',
@@ -1734,6 +1759,17 @@ extension on TranslationsPt {
 			'plantare.openSection' => 'Pendentes',
 			'plantare.settledSection' => 'Feitos',
 			'plantare.removeConfirm' => 'Remover este compromisso?',
+			'handover.title' => 'Dei ou recebi sementes',
+			'handover.help' => 'Uma oferta, uma troca ou uma venda: anota-o, com promessa de devolver semente ou sem ela.',
+			'handover.iGave' => 'Dei sementes',
+			'handover.iReceived' => 'Recebi sementes',
+			'handover.whichLot' => 'De que lote?',
+			'handover.howMuch' => 'Quanto?',
+			'handover.allOfIt' => 'Tudo',
+			'handover.partOfIt' => 'Uma parte',
+			'handover.paymentChip' => 'Houve dinheiro pelo meio',
+			'handover.promiseGave' => 'Vão devolver-me semente',
+			'handover.promiseReceived' => 'Vou devolver semente',
 			'sale.title' => 'Vendas',
 			'sale.help' => 'Regista semente vendida ou comprada — dinheiro, Ğ1 ou qualquer moeda. Um modelo separado do presente e do Plantare. Nunca se cobra comissão pelas sementes.',
 			'sale.add' => 'Registar venda',

apps/app_seeds/lib/state/offers_cubit.dart

@@ -284,6 +284,8 @@ class OffersCubit extends Cubit<OffersState> {
           areaGeohash: areaGeohash,
           category: lot.category,
           isOrganic: lot.isOrganic,
+          priceAmount: lot.priceAmount,
+          priceCurrency: lot.priceCurrency,
           imageUrl: await _coverThumbnail(lot.varietyId),
         );
         final result = await transport.publish(offer);

apps/app_seeds/lib/state/variety_detail_cubit.dart

@@ -81,6 +81,8 @@ class VarietyDetailCubit extends Cubit<VarietyDetailState> {
     Abundance? abundance,
     PreservationFormat? preservationFormat,
     OfferStatus offerStatus = OfferStatus.private,
+    double? priceAmount,
+    String? priceCurrency,
   }) => _repo.addLot(
     varietyId: varietyId,
     type: type,
@@ -93,6 +95,8 @@ class VarietyDetailCubit extends Cubit<VarietyDetailState> {
     abundance: abundance,
     preservationFormat: preservationFormat,
     offerStatus: offerStatus,
+    priceAmount: priceAmount,
+    priceCurrency: priceCurrency,
   );
 
   Future<void> updateLot({
@@ -107,6 +111,8 @@ class VarietyDetailCubit extends Cubit<VarietyDetailState> {
     Abundance? abundance,
     PreservationFormat? preservationFormat,
     OfferStatus offerStatus = OfferStatus.private,
+    double? priceAmount,
+    String? priceCurrency,
   }) => _repo.updateLot(
     lotId: lotId,
     type: type,
@@ -119,6 +125,8 @@ class VarietyDetailCubit extends Cubit<VarietyDetailState> {
     abundance: abundance,
     preservationFormat: preservationFormat,
     offerStatus: offerStatus,
+    priceAmount: priceAmount,
+    priceCurrency: priceCurrency,
   );
 
   Future<void> deleteLot(String lotId) => _repo.softDeleteLot(lotId);

apps/app_seeds/lib/ui/currency_quick_picks.dart

@@ -0,0 +1,44 @@
+import 'package:flutter/material.dart';
+
+import '../i18n/strings.g.dart';
+
+/// One-tap currency chips bound to a free-text [controller]. Ğ1 sits quietly
+/// among the familiar ones — offered, never imposed — and free text still
+/// takes anything else (sharing-model §6). Shared by the sale sheet, the lot
+/// price field and the hand-over sheet so every money-ish input feels the same.
+class CurrencyQuickPicks extends StatelessWidget {
+  const CurrencyQuickPicks({
+    required this.controller,
+    required this.keyPrefix,
+    required this.onChanged,
+    super.key,
+  });
+
+  final TextEditingController controller;
+
+  /// Namespaces the chip [Key]s (e.g. `sale` → `sale.currencyChip.€`).
+  final String keyPrefix;
+
+  /// Fires after a chip toggles the controller text (for `setState`).
+  final VoidCallback onChanged;
+
+  @override
+  Widget build(BuildContext context) {
+    final t = context.t;
+    return Wrap(
+      spacing: 8,
+      children: [
+        for (final c in ['€', 'Ğ1', t.sale.hours])
+          ChoiceChip(
+            key: Key('$keyPrefix.currencyChip.$c'),
+            label: Text(c),
+            selected: controller.text.trim() == c,
+            onSelected: (sel) {
+              controller.text = sel ? c : '';
+              onChanged();
+            },
+          ),
+      ],
+    );
+  }
+}

apps/app_seeds/lib/ui/handover_sheet.dart

@@ -0,0 +1,346 @@
+import 'package:commons_core/commons_core.dart';
+import 'package:flutter/material.dart';
+
+import '../data/variety_repository.dart';
+import '../db/enums.dart';
+import '../i18n/strings.g.dart';
+import 'currency_quick_picks.dart';
+import 'harvest_date_picker.dart';
+import 'quantity_kind_l10n.dart';
+import 'quantity_picker.dart';
+import 'theme.dart';
+
+/// Opens the hand-over sheet — the ONE place to note that seeds changed hands
+/// (a gift, a swap, a sale…), optionally with money and/or a return promise.
+/// It records the Movement and spawns the Sale/Plantare rows in one save
+/// (data-model §2.8), so the person never juggles three separate forms.
+///
+/// [lots] are the variety's live batches: one → preselected; several → a
+/// chip picker; none → the quantity section hides and only the optional
+/// records are saved. [initialLot] preselects a batch (entry from a lot row).
+Future<void> showHandoverSheet(
+  BuildContext context, {
+  required VarietyRepository repository,
+  required String varietyId,
+  List<VarietyLot> lots = const [],
+  VarietyLot? initialLot,
+}) {
+  return showModalBottomSheet<void>(
+    context: context,
+    isScrollControlled: true,
+    builder: (_) => _HandoverSheet(
+      repository: repository,
+      varietyId: varietyId,
+      lots: lots,
+      initialLot: initialLot ?? (lots.length == 1 ? lots.single : null),
+    ),
+  );
+}
+
+class _HandoverSheet extends StatefulWidget {
+  const _HandoverSheet({
+    required this.repository,
+    required this.varietyId,
+    required this.lots,
+    this.initialLot,
+  });
+
+  final VarietyRepository repository;
+  final String varietyId;
+  final List<VarietyLot> lots;
+  final VarietyLot? initialLot;
+
+  @override
+  State<_HandoverSheet> createState() => _HandoverSheetState();
+}
+
+class _HandoverSheetState extends State<_HandoverSheet> {
+  HandoverDirection _direction = HandoverDirection.iGave;
+  VarietyLot? _lot;
+  bool _gaveAll = true;
+  Quantity? _partialQuantity;
+  final _counterparty = TextEditingController();
+  bool _withPayment = false;
+  final _amount = TextEditingController();
+  final _currency = TextEditingController();
+  bool _withPromise = false;
+  final _owed = TextEditingController();
+  bool _saving = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _lot = widget.initialLot;
+  }
+
+  @override
+  void dispose() {
+    _counterparty.dispose();
+    _amount.dispose();
+    _currency.dispose();
+    _owed.dispose();
+    super.dispose();
+  }
+
+  String? _nullIfBlank(String s) => s.trim().isEmpty ? null : s.trim();
+
+  String _lotLabel(Translations t, VarietyLot lot) {
+    final parts = <String>[
+      if (lot.harvestYear != null)
+        harvestDateLabel(t, year: lot.harvestYear!, month: lot.harvestMonth)
+      else
+        t.detail.noYear,
+      if (lot.quantity != null) quantityDisplay(t, lot.quantity!),
+    ];
+    return parts.join(' · ');
+  }
+
+  Future<void> _save() async {
+    setState(() => _saving = true);
+    final counterparty = _nullIfBlank(_counterparty.text);
+    final amount = double.tryParse(_amount.text.trim().replaceAll(',', '.'));
+    final currency = _nullIfBlank(_currency.text);
+    final owed = _nullIfBlank(_owed.text);
+    final lot = _lot;
+    if (lot != null) {
+      await widget.repository.recordHandover(
+        lotId: lot.id,
+        direction: _direction,
+        gaveAll: _gaveAll,
+        quantity: _gaveAll ? null : _partialQuantity,
+        counterparty: counterparty,
+        withPayment: _withPayment,
+        paymentAmount: amount,
+        paymentCurrency: currency,
+        withPromise: _withPromise,
+        promiseOwedDescription: owed,
+      );
+    } else {
+      // No batch to move — record just the ledgers the person asked for.
+      if (_withPayment) {
+        await widget.repository.createSale(
+          direction: _direction == HandoverDirection.iGave
+              ? SaleDirection.iSold
+              : SaleDirection.iBought,
+          varietyId: widget.varietyId,
+          counterparty: counterparty,
+          amount: amount,
+          currency: currency,
+        );
+      }
+      if (_withPromise) {
+        await widget.repository.createPlantare(
+          direction: _direction == HandoverDirection.iGave
+              ? PlantareDirection.owedToMe
+              : PlantareDirection.iReturn,
+          varietyId: widget.varietyId,
+          counterparty: counterparty,
+          owedDescription: owed,
+        );
+      }
+    }
+    if (mounted) Navigator.of(context).pop();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final t = context.t;
+    final gave = _direction == HandoverDirection.iGave;
+    return Padding(
+      padding: EdgeInsets.only(
+        left: 16,
+        right: 16,
+        top: 16,
+        bottom: MediaQuery.of(context).viewInsets.bottom + 16,
+      ),
+      child: SingleChildScrollView(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            Text(
+              t.handover.title,
+              style: Theme.of(context).textTheme.titleLarge,
+            ),
+            const SizedBox(height: 4),
+            Text(
+              t.handover.help,
+              style: const TextStyle(color: seedMuted, fontSize: 13),
+            ),
+            const SizedBox(height: 12),
+            // Two big, human choices — same idiom as the plantare sheet.
+            for (final d in HandoverDirection.values)
+              ListTile(
+                key: Key('handover.direction.${d.name}'),
+                contentPadding: EdgeInsets.zero,
+                leading: Icon(
+                  _direction == d
+                      ? Icons.radio_button_checked
+                      : Icons.radio_button_unchecked,
+                  color: _direction == d ? seedGreen : seedMuted,
+                ),
+                title: Text(
+                  d == HandoverDirection.iGave
+                      ? t.handover.iGave
+                      : t.handover.iReceived,
+                ),
+                onTap: () => setState(() => _direction = d),
+              ),
+            if (widget.lots.length > 1) ...[
+              const SizedBox(height: 8),
+              Text(
+                t.handover.whichLot,
+                style: Theme.of(context).textTheme.labelLarge,
+              ),
+              const SizedBox(height: 8),
+              Wrap(
+                spacing: 8,
+                runSpacing: 4,
+                children: [
+                  for (final lot in widget.lots)
+                    ChoiceChip(
+                      key: Key('handover.lot.${lot.id}'),
+                      label: Text(_lotLabel(t, lot)),
+                      selected: _lot?.id == lot.id,
+                      onSelected: (sel) =>
+                          setState(() => _lot = sel ? lot : null),
+                    ),
+                ],
+              ),
+            ],
+            if (_lot != null && gave) ...[
+              const SizedBox(height: 8),
+              Text(
+                t.handover.howMuch,
+                style: Theme.of(context).textTheme.labelLarge,
+              ),
+              const SizedBox(height: 8),
+              Wrap(
+                spacing: 8,
+                children: [
+                  ChoiceChip(
+                    key: const Key('handover.allOfIt'),
+                    label: Text(t.handover.allOfIt),
+                    selected: _gaveAll,
+                    onSelected: (sel) => setState(() => _gaveAll = true),
+                  ),
+                  ChoiceChip(
+                    key: const Key('handover.partOfIt'),
+                    label: Text(t.handover.partOfIt),
+                    selected: !_gaveAll,
+                    onSelected: (sel) => setState(() => _gaveAll = false),
+                  ),
+                ],
+              ),
+              if (!_gaveAll) ...[
+                const SizedBox(height: 8),
+                QuantityPicker(
+                  type: _lot!.type,
+                  value: _partialQuantity,
+                  onChanged: (q) => _partialQuantity = q,
+                ),
+              ],
+            ],
+            const SizedBox(height: 12),
+            TextField(
+              key: const Key('handover.counterparty'),
+              controller: _counterparty,
+              textCapitalization: TextCapitalization.words,
+              decoration: InputDecoration(
+                labelText: t.sale.counterparty,
+                helperText: t.sale.counterpartyHint,
+                border: const OutlineInputBorder(),
+              ),
+            ),
+            const SizedBox(height: 12),
+            // Money and promise stay one tap away — a plain gift needs neither.
+            Wrap(
+              spacing: 8,
+              children: [
+                if (!_withPayment)
+                  ActionChip(
+                    key: const Key('handover.addPayment'),
+                    avatar: const Icon(Icons.sell_outlined, size: 18),
+                    label: Text(t.handover.paymentChip),
+                    onPressed: () => setState(() => _withPayment = true),
+                  ),
+                if (!_withPromise)
+                  ActionChip(
+                    key: const Key('handover.addPromise'),
+                    avatar: const Icon(
+                      Icons.volunteer_activism_outlined,
+                      size: 18,
+                    ),
+                    label: Text(
+                      gave
+                          ? t.handover.promiseGave
+                          : t.handover.promiseReceived,
+                    ),
+                    onPressed: () => setState(() => _withPromise = true),
+                  ),
+              ],
+            ),
+            if (_withPayment) ...[
+              const SizedBox(height: 12),
+              Row(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Expanded(
+                    child: TextField(
+                      key: const Key('handover.amount'),
+                      controller: _amount,
+                      keyboardType: const TextInputType.numberWithOptions(
+                        decimal: true,
+                      ),
+                      decoration: InputDecoration(
+                        labelText: t.sale.amount,
+                        border: const OutlineInputBorder(),
+                      ),
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: TextField(
+                      key: const Key('handover.currency'),
+                      controller: _currency,
+                      decoration: InputDecoration(
+                        labelText: t.sale.currency,
+                        border: const OutlineInputBorder(),
+                      ),
+                      onChanged: (_) => setState(() {}),
+                    ),
+                  ),
+                ],
+              ),
+              const SizedBox(height: 8),
+              CurrencyQuickPicks(
+                controller: _currency,
+                keyPrefix: 'handover',
+                onChanged: () => setState(() {}),
+              ),
+            ],
+            if (_withPromise) ...[
+              const SizedBox(height: 12),
+              TextField(
+                key: const Key('handover.owed'),
+                controller: _owed,
+                decoration: InputDecoration(
+                  labelText: t.plantare.owed,
+                  helperText: t.plantare.owedHint,
+                  helperMaxLines: 2,
+                  border: const OutlineInputBorder(),
+                ),
+              ),
+            ],
+            const SizedBox(height: 20),
+            FilledButton(
+              key: const Key('handover.save'),
+              onPressed: _saving ? null : _save,
+              child: Text(t.common.save),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

apps/app_seeds/lib/ui/sale_sheet.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import '../data/variety_repository.dart';
 import '../db/enums.dart';
 import '../i18n/strings.g.dart';
+import 'currency_quick_picks.dart';
 import 'theme.dart';
 
 /// Opens the "record a sale" sheet. Optionally pre-attached to [varietyId]
@@ -140,22 +141,10 @@ class _SaleSheetState extends State<_SaleSheet> {
               ],
             ),
             const SizedBox(height: 8),
-            // Quick picks so a currency is one tap. Ğ1 sits quietly among the
+            CurrencyQuickPicks(
-            // familiar ones — offered, never imposed — and free text still takes
+              controller: _currency,
-            // anything else.
+              keyPrefix: 'sale',
-            Wrap(
+              onChanged: () => setState(() {}),
-              spacing: 8,
-              children: [
-                for (final c in ['€', 'Ğ1', t.sale.hours])
-                  ChoiceChip(
-                    key: Key('sale.currencyChip.$c'),
-                    label: Text(c),
-                    selected: _currency.text.trim() == c,
-                    onSelected: (sel) => setState(() {
-                      _currency.text = sel ? c : '';
-                    }),
-                  ),
-              ],
             ),
             const SizedBox(height: 12),
             TextField(

apps/app_seeds/lib/ui/variety_detail_screen.dart

@@ -16,11 +16,11 @@ import '../domain/seed_viability.dart';
 import '../domain/species_reference_links.dart';
 import '../i18n/strings.g.dart';
 import '../state/variety_detail_cubit.dart';
+import 'currency_quick_picks.dart';
+import 'handover_sheet.dart';
 import 'harvest_date_picker.dart';
 import 'photo_pick.dart';
-import 'plantare_sheet.dart';
 import 'quantity_kind_l10n.dart';
-import 'sale_sheet.dart';
 import 'quantity_picker.dart';
 import 'seed_glyph.dart';
 import 'theme.dart';
@@ -117,25 +117,19 @@ class _DetailView extends StatelessWidget {
             spacing: 8,
             runSpacing: 8,
             children: [
+              // ONE door for "seeds changed hands": gift, swap or sale, with
+              // or without money or a return promise. The sales/plantares
+              // screens keep their own add buttons for off-app records.
               OutlinedButton.icon(
-                key: const Key('detail.addPlantare'),
+                key: const Key('detail.handover'),
-                icon: const Icon(Icons.volunteer_activism_outlined, size: 18),
+                icon: const Icon(Icons.handshake_outlined, size: 18),
-                onPressed: () => showPlantareSheet(
+                onPressed: () => showHandoverSheet(
                   context,
                   repository: context.read<VarietyRepository>(),
                   varietyId: detail.id,
+                  lots: detail.lots,
                 ),
-                label: Text(t.plantare.add),
+                label: Text(t.handover.title),
-              ),
-              OutlinedButton.icon(
-                key: const Key('detail.addSale'),
-                icon: const Icon(Icons.sell_outlined, size: 18),
-                onPressed: () => showSaleSheet(
-                  context,
-                  repository: context.read<VarietyRepository>(),
-                  varietyId: detail.id,
-                ),
-                label: Text(t.sale.add),
               ),
             ],
           ),
@@ -322,22 +316,32 @@ class _LotTile extends StatelessWidget {
                 ?warning,
               ],
             ),
-      // Germination only applies to seed lots, not to plantel.
+      trailing: Row(
-      trailing: lot.type != LotType.seed
+        mainAxisSize: MainAxisSize.min,
-          ? null
+        children: [
-          : Row(
+          if (lot.type == LotType.seed && lot.latestGerminationRate != null)
-              mainAxisSize: MainAxisSize.min,
+            _GerminationBadge(rate: lot.latestGerminationRate!),
-              children: [
+          IconButton(
-                if (lot.latestGerminationRate != null)
+            key: Key('lot.handover.${lot.id}'),
-                  _GerminationBadge(rate: lot.latestGerminationRate!),
+            icon: const Icon(Icons.handshake_outlined),
-                IconButton(
+            tooltip: t.handover.title,
-                  key: Key('lot.germination.${lot.id}'),
+            onPressed: () => showHandoverSheet(
-                  icon: const Icon(Icons.grass_outlined),
+              context,
-                  tooltip: t.germination.title,
+              repository: context.read<VarietyRepository>(),
-                  onPressed: () => _showGerminationSheet(context, cubit, lot),
+              varietyId: cubit.varietyId,
-                ),
+              lots: [lot],
-              ],
             ),
+          ),
+          // Germination only applies to seed lots, not to plantel.
+          if (lot.type == LotType.seed)
+            IconButton(
+              key: Key('lot.germination.${lot.id}'),
+              icon: const Icon(Icons.grass_outlined),
+              tooltip: t.germination.title,
+              onPressed: () => _showGerminationSheet(context, cubit, lot),
+            ),
+        ],
+      ),
     );
   }
 }
@@ -496,80 +500,82 @@ Future<void> _showGerminationSheet(
               t.germination.title,
               style: Theme.of(sheetContext).textTheme.titleLarge,
             ),
-          const SizedBox(height: 8),
+            const SizedBox(height: 8),
-          if (lot.germinationTests.isEmpty)
+            if (lot.germinationTests.isEmpty)
-            Text(t.germination.none)
+              Text(t.germination.none)
-          else
+            else
-            for (final test in lot.germinationTests)
+              for (final test in lot.germinationTests)
-              ListTile(
+                ListTile(
-                dense: true,
+                  dense: true,
-                contentPadding: EdgeInsets.zero,
+                  contentPadding: EdgeInsets.zero,
-                leading: const Icon(Icons.grass_outlined),
+                  leading: const Icon(Icons.grass_outlined),
-                title: Text(
+                  title: Text(
-                  test.rate == null ? '—' : _germinationPercent(t, test.rate!),
+                    test.rate == null
+                        ? '—'
+                        : _germinationPercent(t, test.rate!),
+                  ),
+                  subtitle:
+                      (test.sampleSize != null && test.germinatedCount != null)
+                      ? Text('${test.germinatedCount}/${test.sampleSize}')
+                      : null,
                 ),
-                subtitle:
+            const Divider(),
-                    (test.sampleSize != null && test.germinatedCount != null)
+            Row(
-                    ? Text('${test.germinatedCount}/${test.sampleSize}')
+              children: [
-                    : null,
+                Expanded(
-              ),
+                  child: TextField(
-          const Divider(),
+                    key: const Key('germination.germinated'),
-          Row(
+                    controller: germinated,
-            children: [
+                    keyboardType: TextInputType.number,
-              Expanded(
+                    decoration: InputDecoration(
-                child: TextField(
+                      labelText: t.germination.germinated,
-                  key: const Key('germination.germinated'),
+                      border: const OutlineInputBorder(
-                  controller: germinated,
+                        borderRadius: BorderRadius.all(Radius.circular(8)),
-                  keyboardType: TextInputType.number,
+                      ),
-                  decoration: InputDecoration(
-                    labelText: t.germination.germinated,
-                    border: const OutlineInputBorder(
-                      borderRadius: BorderRadius.all(Radius.circular(8)),
                     ),
                   ),
                 ),
-              ),
+                const SizedBox(width: 12),
-              const SizedBox(width: 12),
+                Expanded(
-              Expanded(
+                  child: TextField(
-                child: TextField(
+                    key: const Key('germination.sampleSize'),
-                  key: const Key('germination.sampleSize'),
+                    controller: sample,
-                  controller: sample,
+                    keyboardType: TextInputType.number,
-                  keyboardType: TextInputType.number,
+                    decoration: InputDecoration(
-                  decoration: InputDecoration(
+                      labelText: t.germination.sampleSize,
-                    labelText: t.germination.sampleSize,
+                      border: const OutlineInputBorder(
-                    border: const OutlineInputBorder(
+                        borderRadius: BorderRadius.all(Radius.circular(8)),
-                      borderRadius: BorderRadius.all(Radius.circular(8)),
+                      ),
                     ),
                   ),
                 ),
-              ),
+              ],
-            ],
+            ),
-          ),
+            const SizedBox(height: 16),
-          const SizedBox(height: 16),
+            Row(
-          Row(
+              children: [
-            children: [
+                TextButton(
-              TextButton(
+                  onPressed: () => Navigator.of(sheetContext).pop(),
-                onPressed: () => Navigator.of(sheetContext).pop(),
+                  child: Text(t.common.cancel),
-                child: Text(t.common.cancel),
+                ),
-              ),
+                const Spacer(),
-              const Spacer(),
+                FilledButton(
-              FilledButton(
+                  key: const Key('germination.save'),
-                key: const Key('germination.save'),
+                  onPressed: () {
-                onPressed: () {
+                    cubit.addGerminationTest(
-                  cubit.addGerminationTest(
+                      lotId: lot.id,
-                    lotId: lot.id,
+                      testedOn: DateTime.now().millisecondsSinceEpoch,
-                    testedOn: DateTime.now().millisecondsSinceEpoch,
+                      sampleSize: int.tryParse(sample.text.trim()),
-                    sampleSize: int.tryParse(sample.text.trim()),
+                      germinatedCount: int.tryParse(germinated.text.trim()),
-                    germinatedCount: int.tryParse(germinated.text.trim()),
+                    );
-                  );
+                    Navigator.of(sheetContext).pop();
-                  Navigator.of(sheetContext).pop();
+                  },
-                },
+                  child: Text(t.germination.add),
-                child: Text(t.germination.add),
+                ),
-              ),
+              ],
-            ],
+            ),
-          ),
+          ],
-        ],
+        ),
-      ),
       ),
     ),
   );
@@ -1375,62 +1381,63 @@ Future<void> _showConditionSheet(
                 t.conditionCheck.title,
                 style: Theme.of(sheetContext).textTheme.titleLarge,
               ),
-            const SizedBox(height: 12),
+              const SizedBox(height: 12),
-            TextField(
+              TextField(
-              key: const Key('conditionCheck.containers'),
+                key: const Key('conditionCheck.containers'),
-              controller: containers,
+                controller: containers,
-              keyboardType: TextInputType.number,
+                keyboardType: TextInputType.number,
-              decoration: InputDecoration(
+                decoration: InputDecoration(
-                labelText: t.conditionCheck.containers,
+                  labelText: t.conditionCheck.containers,
-                border: const OutlineInputBorder(
+                  border: const OutlineInputBorder(
-                  borderRadius: BorderRadius.all(Radius.circular(8)),
+                    borderRadius: BorderRadius.all(Radius.circular(8)),
+                  ),
                 ),
               ),
-            ),
+              const SizedBox(height: 16),
-            const SizedBox(height: 16),
+              Text(
-            Text(
+                t.conditionCheck.desiccant,
-              t.conditionCheck.desiccant,
+                style: Theme.of(sheetContext).textTheme.labelLarge,
-              style: Theme.of(sheetContext).textTheme.labelLarge,
+              ),
-            ),
+              const SizedBox(height: 8),
-            const SizedBox(height: 8),
+              Wrap(
-            Wrap(
+                spacing: 8,
-              spacing: 8,
+                runSpacing: 4,
-              runSpacing: 4,
+                children: [
-              children: [
+                  for (final d in DesiccantState.values)
-                for (final d in DesiccantState.values)
+                    ChoiceChip(
-                  ChoiceChip(
+                      key: Key('desiccant.${d.name}'),
-                    key: Key('desiccant.${d.name}'),
+                      label: Text(desiccantLabel(t, d)),
-                    label: Text(desiccantLabel(t, d)),
+                      selected: state == d,
-                    selected: state == d,
+                      onSelected: (sel) =>
-                    onSelected: (sel) => setState(() => state = sel ? d : null),
+                          setState(() => state = sel ? d : null),
+                    ),
+                ],
+              ),
+              const SizedBox(height: 16),
+              Row(
+                children: [
+                  TextButton(
+                    onPressed: () => Navigator.of(sheetContext).pop(),
+                    child: Text(t.common.cancel),
                   ),
-              ],
+                  const Spacer(),
-            ),
+                  FilledButton(
-            const SizedBox(height: 16),
+                    key: const Key('conditionCheck.save'),
-            Row(
+                    onPressed: () {
-              children: [
+                      cubit.addConditionCheck(
-                TextButton(
+                        lotId: lot.id,
-                  onPressed: () => Navigator.of(sheetContext).pop(),
+                        checkedOn: DateTime.now().millisecondsSinceEpoch,
-                  child: Text(t.common.cancel),
+                        containerCount: int.tryParse(containers.text.trim()),
-                ),
+                        desiccantState: state,
-                const Spacer(),
+                      );
-                FilledButton(
+                      Navigator.of(sheetContext).pop();
-                  key: const Key('conditionCheck.save'),
+                    },
-                  onPressed: () {
+                    child: Text(t.conditionCheck.add),
-                    cubit.addConditionCheck(
+                  ),
-                      lotId: lot.id,
+                ],
-                      checkedOn: DateTime.now().millisecondsSinceEpoch,
+              ),
-                      containerCount: int.tryParse(containers.text.trim()),
+            ],
-                      desiccantState: state,
+          ),
-                    );
-                    Navigator.of(sheetContext).pop();
-                  },
-                  child: Text(t.conditionCheck.add),
-                ),
-              ],
-            ),
-          ],
-        ),
         ),
       ),
     ),
@@ -1464,6 +1471,18 @@ Future<void> _showLotSheet(
       existing?.originName != null || existing?.originPlace != null;
   var showAbundance = existing?.abundance != null;
   var showShare = selectedShare != OfferStatus.private;
+  final existingPrice = existing?.priceAmount;
+  final priceAmountCtrl = TextEditingController(
+    // Drop a trailing .0 so the field shows "5", not "5.0".
+    text: existingPrice == null
+        ? ''
+        : (existingPrice == existingPrice.roundToDouble()
+              ? existingPrice.toInt().toString()
+              : existingPrice.toString()),
+  );
+  final priceCurrencyCtrl = TextEditingController(
+    text: existing?.priceCurrency ?? '',
+  );
   return showModalBottomSheet<void>(
     context: context,
     isScrollControlled: true,
@@ -1660,6 +1679,49 @@ Future<void> _showLotSheet(
                             style: Theme.of(sheetContext).textTheme.bodySmall,
                           ),
                         ),
+                      // Price only when selling — informational, agreed and
+                      // paid off-app. Empty amount = "to be agreed".
+                      if (selectedShare == OfferStatus.sell) ...[
+                        const SizedBox(height: 12),
+                        Row(
+                          crossAxisAlignment: CrossAxisAlignment.start,
+                          children: [
+                            Expanded(
+                              child: TextField(
+                                key: const Key('lot.priceAmount'),
+                                controller: priceAmountCtrl,
+                                keyboardType:
+                                    const TextInputType.numberWithOptions(
+                                      decimal: true,
+                                    ),
+                                decoration: InputDecoration(
+                                  labelText: t.share.price,
+                                  helperText: t.share.priceHint,
+                                  border: const OutlineInputBorder(),
+                                ),
+                              ),
+                            ),
+                            const SizedBox(width: 12),
+                            Expanded(
+                              child: TextField(
+                                key: const Key('lot.priceCurrency'),
+                                controller: priceCurrencyCtrl,
+                                decoration: InputDecoration(
+                                  labelText: t.sale.currency,
+                                  border: const OutlineInputBorder(),
+                                ),
+                                onChanged: (_) => setState(() {}),
+                              ),
+                            ),
+                          ],
+                        ),
+                        const SizedBox(height: 8),
+                        CurrencyQuickPicks(
+                          controller: priceCurrencyCtrl,
+                          keyPrefix: 'lot',
+                          onChanged: () => setState(() {}),
+                        ),
+                      ],
                     ],
                     // Layer 2: advanced seed-bank details, collapsed by default.
                     // Only for seed lots, and (condition checks) an existing lot.
@@ -1710,6 +1772,10 @@ Future<void> _showLotSheet(
                   onPressed: () {
                     final originName = _nullIfBlank(originNameCtrl.text);
                     final originPlace = _nullIfBlank(originPlaceCtrl.text);
+                    final priceAmount = double.tryParse(
+                      priceAmountCtrl.text.replaceAll(',', '.').trim(),
+                    );
+                    final priceCurrency = _nullIfBlank(priceCurrencyCtrl.text);
                     if (editing) {
                       cubit.updateLot(
                         lotId: existing.id,
@@ -1723,6 +1789,8 @@ Future<void> _showLotSheet(
                         abundance: selectedAbundance,
                         preservationFormat: selectedPreservation,
                         offerStatus: selectedShare,
+                        priceAmount: priceAmount,
+                        priceCurrency: priceCurrency,
                       );
                     } else {
                       cubit.addLot(
@@ -1736,6 +1804,8 @@ Future<void> _showLotSheet(
                         abundance: selectedAbundance,
                         preservationFormat: selectedPreservation,
                         offerStatus: selectedShare,
+                        priceAmount: priceAmount,
+                        priceCurrency: priceCurrency,
                       );
                     }
                     Navigator.of(sheetContext).pop();

apps/app_seeds/test/data/handover_test.dart

@@ -0,0 +1,181 @@
+import 'package:commons_core/commons_core.dart';
+import 'package:drift/drift.dart' hide isNull;
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tane/data/variety_repository.dart';
+import 'package:tane/db/database.dart';
+import 'package:tane/db/enums.dart';
+
+import '../support/test_support.dart';
+
+void main() {
+  late AppDatabase db;
+  late VarietyRepository repo;
+  late String varietyId;
+  setUp(() async {
+    db = newTestDatabase();
+    repo = newTestRepository(db);
+    varietyId = await repo.addQuickVariety(label: 'Tomate rosa');
+  });
+  tearDown(() => db.close());
+
+  Future<Movement> movementById(String id) =>
+      (db.select(db.movements)..where((m) => m.id.equals(id))).getSingle();
+
+  Future<Lot> lotById(String id) =>
+      (db.select(db.lots)..where((l) => l.id.equals(id))).getSingle();
+
+  test('a plain gift records just the given movement', () async {
+    final lotId = await repo.addLot(varietyId: varietyId);
+
+    final result = await repo.recordHandover(
+      lotId: lotId,
+      direction: HandoverDirection.iGave,
+      counterparty: 'María',
+    );
+
+    expect(result.saleId, isNull);
+    expect(result.plantareId, isNull);
+    final movement = await movementById(result.movementId);
+    expect(movement.type, MovementType.given);
+    expect(movement.lotId, lotId);
+    expect(movement.notes, 'María');
+    expect(movement.plantareId, isNull);
+    expect(await repo.watchSales().first, isEmpty);
+    expect(await repo.watchPlantares().first, isEmpty);
+  });
+
+  test(
+    'giving all depletes the lot, privatizes it and drops its price',
+    () async {
+      final lotId = await repo.addLot(
+        varietyId: varietyId,
+        quantity: const Quantity(kind: QuantityKind.grams, count: 40),
+        abundance: Abundance.plentyToShare,
+        offerStatus: OfferStatus.sell,
+        priceAmount: 3,
+        priceCurrency: '€',
+      );
+
+      final result = await repo.recordHandover(
+        lotId: lotId,
+        direction: HandoverDirection.iGave,
+        gaveAll: true,
+      );
+
+      // The movement carries what actually moved: the lot's whole quantity.
+      final movement = await movementById(result.movementId);
+      expect(movement.quantityKind, QuantityKind.grams.name);
+      expect(movement.quantityPrecise, 40);
+
+      // The lot stays as an empty jar, withdrawn from the market.
+      final lot = await lotById(lotId);
+      expect(lot.quantityPrecise, 0);
+      expect(lot.quantityKind, QuantityKind.grams.name);
+      expect(lot.abundance, isNull);
+      expect(lot.offerStatus, OfferStatus.private);
+      expect(lot.priceAmount, isNull);
+      expect(lot.priceCurrency, isNull);
+      expect(
+        (await repo.shareableLots()).where((l) => l.lotId == lotId),
+        isEmpty,
+      );
+    },
+  );
+
+  test('giving part keeps the lot open and offered', () async {
+    final lotId = await repo.addLot(
+      varietyId: varietyId,
+      quantity: const Quantity(kind: QuantityKind.grams, count: 40),
+      offerStatus: OfferStatus.shared,
+    );
+
+    final result = await repo.recordHandover(
+      lotId: lotId,
+      direction: HandoverDirection.iGave,
+      quantity: const Quantity(kind: QuantityKind.grams, count: 10),
+    );
+
+    final movement = await movementById(result.movementId);
+    expect(movement.quantityPrecise, 10);
+    final lot = await lotById(lotId);
+    expect(lot.quantityPrecise, 40); // untouched: the log holds the history
+    expect(lot.offerStatus, OfferStatus.shared);
+    expect(
+      (await repo.shareableLots()).where((l) => l.lotId == lotId),
+      hasLength(1),
+    );
+  });
+
+  test('a payment on a give creates the matching sale record', () async {
+    final lotId = await repo.addLot(varietyId: varietyId);
+
+    final result = await repo.recordHandover(
+      lotId: lotId,
+      direction: HandoverDirection.iGave,
+      counterparty: 'María',
+      withPayment: true,
+      paymentAmount: 2.5,
+      paymentCurrency: 'Ğ1',
+    );
+
+    final sales = await repo.watchSales().first;
+    expect(sales, hasLength(1));
+    expect(sales.single.id, result.saleId);
+    expect(sales.single.direction, SaleDirection.iSold);
+    expect(sales.single.varietyId, varietyId);
+    expect(sales.single.counterparty, 'María');
+    expect(sales.single.amount, 2.5);
+    expect(sales.single.currency, 'Ğ1');
+  });
+
+  test('a promise on a give creates a plantare owed to me, linked from the '
+      'movement', () async {
+    final lotId = await repo.addLot(varietyId: varietyId);
+
+    final result = await repo.recordHandover(
+      lotId: lotId,
+      direction: HandoverDirection.iGave,
+      counterparty: 'María',
+      withPromise: true,
+      promiseOwedDescription: 'un puñado la próxima temporada',
+    );
+
+    final plantares = await repo.watchPlantares().first;
+    expect(plantares, hasLength(1));
+    expect(plantares.single.id, result.plantareId);
+    expect(plantares.single.direction, PlantareDirection.owedToMe);
+    expect(plantares.single.varietyId, varietyId);
+    expect(plantares.single.counterparty, 'María');
+    expect(plantares.single.owedDescription, 'un puñado la próxima temporada');
+    // The link the model reserved: the movement carries the plantare id.
+    final movement = await movementById(result.movementId);
+    expect(movement.plantareId, result.plantareId);
+  });
+
+  test('receiving with payment and promise mirrors the directions', () async {
+    final lotId = await repo.addLot(
+      varietyId: varietyId,
+      quantity: const Quantity(kind: QuantityKind.grams, count: 40),
+    );
+
+    final result = await repo.recordHandover(
+      lotId: lotId,
+      direction: HandoverDirection.iReceived,
+      // Meaningless on a receive; must not deplete anything.
+      gaveAll: true,
+      withPayment: true,
+      paymentAmount: 5,
+      paymentCurrency: '€',
+      withPromise: true,
+    );
+
+    final movement = await movementById(result.movementId);
+    expect(movement.type, MovementType.received);
+    final lot = await lotById(lotId);
+    expect(lot.quantityPrecise, 40);
+    final sales = await repo.watchSales().first;
+    expect(sales.single.direction, SaleDirection.iBought);
+    final plantares = await repo.watchPlantares().first;
+    expect(plantares.single.direction, PlantareDirection.iReturn);
+  });
+}

apps/app_seeds/test/data/shareable_lots_test.dart

@@ -40,4 +40,71 @@ void main() {
     final lots = await repo.shareableLots();
     expect(lots.where((l) => l.lotId == privateId), isEmpty);
   });
+
+  test('sell lots expose their asking price; other statuses never do',
+      () async {
+    final repo = newTestRepository(db);
+    final varietyId = await repo.addQuickVariety(label: 'Calabaza');
+    final sellId = await repo.addLot(
+      varietyId: varietyId,
+      offerStatus: OfferStatus.sell,
+      priceAmount: 3.5,
+      priceCurrency: 'Ğ1',
+    );
+    // Price passed on a gift lot is dropped, not stored.
+    final giftId = await repo.addLot(
+      varietyId: varietyId,
+      offerStatus: OfferStatus.shared,
+      priceAmount: 99,
+      priceCurrency: '€',
+    );
+
+    final lots = await repo.shareableLots();
+    final sell = lots.singleWhere((l) => l.lotId == sellId);
+    expect(sell.priceAmount, 3.5);
+    expect(sell.priceCurrency, 'Ğ1');
+    final gift = lots.singleWhere((l) => l.lotId == giftId);
+    expect(gift.priceAmount, isNull);
+    expect(gift.priceCurrency, isNull);
+  });
+
+  test('a sell lot without amount is "to be agreed" — shareable, no price',
+      () async {
+    final repo = newTestRepository(db);
+    final varietyId = await repo.addQuickVariety(label: 'Lechuga');
+    final sellId = await repo.addLot(
+      varietyId: varietyId,
+      offerStatus: OfferStatus.sell,
+    );
+
+    final lots = await repo.shareableLots();
+    final sell = lots.singleWhere((l) => l.lotId == sellId);
+    expect(sell.priceAmount, isNull);
+  });
+
+  test('moving a lot out of sale clears its stored price', () async {
+    final repo = newTestRepository(db);
+    final varietyId = await repo.addQuickVariety(label: 'Haba');
+    final lotId = await repo.addLot(
+      varietyId: varietyId,
+      offerStatus: OfferStatus.sell,
+      priceAmount: 2,
+      priceCurrency: '€',
+    );
+
+    await repo.updateLot(
+      lotId: lotId,
+      type: LotType.seed,
+      offerStatus: OfferStatus.shared,
+      // Price args still sent by the form; must be ignored off-sale.
+      priceAmount: 2,
+      priceCurrency: '€',
+    );
+
+    final detail = await repo.watchVariety(varietyId).first;
+    final lot = detail!.lots.singleWhere((l) => l.id == lotId);
+    expect(lot.priceAmount, isNull);
+    expect(lot.priceCurrency, isNull);
+    expect(lot.offerStatus, OfferStatus.shared);
+  });
 }

apps/app_seeds/test/db/migration_test.dart

@@ -11,19 +11,19 @@ void main() {
     verifier = SchemaVerifier(GeneratedHelper());
   });
 
-  test('freshly created database matches the exported schema v10', () async {
+  test('freshly created database matches the exported schema v11', () async {
-    final schema = await verifier.schemaAt(10);
+    final schema = await verifier.schemaAt(11);
     final db = AppDatabase(schema.newConnection());
-    await verifier.migrateAndValidate(db, 10);
+    await verifier.migrateAndValidate(db, 11);
     await db.close();
   });
 
-  // Every historical version upgrades cleanly to the current schema (v10).
+  // Every historical version upgrades cleanly to the current schema (v11).
-  for (var from = 1; from <= 9; from++) {
+  for (var from = 1; from <= 10; from++) {
-    test('upgrades v$from → v10 and matches the fresh schema', () async {
+    test('upgrades v$from → v11 and matches the fresh schema', () async {
       final connection = await verifier.startAt(from);
       final db = AppDatabase(connection);
-      await verifier.migrateAndValidate(db, 10);
+      await verifier.migrateAndValidate(db, 11);
       await db.close();
     });
   }

apps/app_seeds/test/db/schema/schema.dart

@@ -14,6 +14,7 @@ import 'schema_v7.dart' as v7;
 import 'schema_v8.dart' as v8;
 import 'schema_v9.dart' as v9;
 import 'schema_v10.dart' as v10;
+import 'schema_v11.dart' as v11;
 
 class GeneratedHelper implements SchemaInstantiationHelper {
   @override
@@ -39,10 +40,12 @@ class GeneratedHelper implements SchemaInstantiationHelper {
         return v9.DatabaseAtV9(db);
       case 10:
         return v10.DatabaseAtV10(db);
+      case 11:
+        return v11.DatabaseAtV11(db);
       default:
         throw MissingSchemaException(version, versions);
     }
   }
 
-  static const versions = const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+  static const versions = const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
 }

apps/app_seeds/test/state/offers_cubit_test.dart

@@ -294,6 +294,43 @@ void main() {
       await cubit.close();
     });
 
+    test('publishLots carries the lot asking price on sale offers', () async {
+      final transport = FakeOfferTransport();
+      final cubit = OffersCubit(transport);
+      await cubit.publishLots(
+        const [
+          ShareableLot(
+            lotId: 'lot-sale',
+            varietyId: 'var-1',
+            summary: 'Tomate',
+            offerStatus: OfferStatus.sell,
+            priceAmount: 3.5,
+            priceCurrency: 'Ğ1',
+          ),
+          // "To be agreed": sale without a figure publishes without a price.
+          ShareableLot(
+            lotId: 'lot-negotiable',
+            varietyId: 'var-2',
+            summary: 'Judía',
+            offerStatus: OfferStatus.sell,
+          ),
+        ],
+        authorPubkeyHex: 'ab' * 32,
+        areaGeohash: 'sp3e9',
+      );
+
+      await cubit.discover('sp3');
+      await pumpEventQueue();
+      final sale = cubit.state.offers.singleWhere((o) => o.id == 'lot-sale');
+      expect(sale.type, OfferType.sale);
+      expect(sale.priceAmount, 3.5);
+      expect(sale.priceCurrency, 'Ğ1');
+      final negotiable =
+          cubit.state.offers.singleWhere((o) => o.id == 'lot-negotiable');
+      expect(negotiable.priceAmount, isNull);
+      await cubit.close();
+    });
+
     test('publishLots embeds an inline thumbnail data-URI on the offer',
         () async {
       final transport = FakeOfferTransport();

apps/app_seeds/test/ui/handover_sheet_test.dart

@@ -0,0 +1,143 @@
+import 'package:commons_core/commons_core.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tane/db/database.dart';
+import 'package:tane/db/enums.dart';
+
+import '../support/test_support.dart';
+
+void main() {
+  late AppDatabase db;
+
+  setUp(() => db = newTestDatabase());
+  tearDown(() => db.close());
+
+  testWidgets('the detail screen offers ONE hand-over door, no separate '
+      'sale/plantare buttons', (tester) async {
+    final repo = newTestRepository(db);
+    final id = await repo.addQuickVariety(label: 'Maize');
+
+    await tester.pumpWidget(
+      wrapDetail(
+        repository: repo,
+        varietyId: id,
+        species: newTestSpeciesRepository(db),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('detail.handover')), findsOneWidget);
+    expect(find.byKey(const Key('detail.addSale')), findsNothing);
+    expect(find.byKey(const Key('detail.addPlantare')), findsNothing);
+    await disposeTree(tester);
+  });
+
+  testWidgets('giving all with payment and promise records the three pieces '
+      'in one save', (tester) async {
+    final repo = newTestRepository(db);
+    final id = await repo.addQuickVariety(label: 'Maize');
+    final lotId = await repo.addLot(
+      varietyId: id,
+      quantity: const Quantity(kind: QuantityKind.grams, count: 40),
+      offerStatus: OfferStatus.sell,
+      priceAmount: 3,
+      priceCurrency: '€',
+    );
+
+    await tester.pumpWidget(
+      wrapDetail(
+        repository: repo,
+        varietyId: id,
+        species: newTestSpeciesRepository(db),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byKey(const Key('detail.handover')));
+    await tester.pumpAndSettle();
+
+    // "All of it" is the default — one tap covers the whole-plant case.
+    final allChip = tester.widget<ChoiceChip>(
+      find.byKey(const Key('handover.allOfIt')),
+    );
+    expect(allChip.selected, isTrue);
+
+    await tester.enterText(
+      find.byKey(const Key('handover.counterparty')),
+      'María',
+    );
+
+    await tester.tap(find.byKey(const Key('handover.addPayment')));
+    await tester.pumpAndSettle();
+    await tester.enterText(find.byKey(const Key('handover.amount')), '2,5');
+    await tester.tap(find.byKey(const Key('handover.currencyChip.Ğ1')));
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byKey(const Key('handover.addPromise')));
+    await tester.pumpAndSettle();
+    await tester.enterText(
+      find.byKey(const Key('handover.owed')),
+      'un puñado',
+    );
+
+    await tester.ensureVisible(find.byKey(const Key('handover.save')));
+    await tester.tap(find.byKey(const Key('handover.save')));
+    await tester.pumpAndSettle();
+
+    final sales = await repo.watchSales().first;
+    expect(sales.single.direction, SaleDirection.iSold);
+    expect(sales.single.amount, 2.5);
+    expect(sales.single.currency, 'Ğ1');
+    expect(sales.single.counterparty, 'María');
+
+    final plantares = await repo.watchPlantares().first;
+    expect(plantares.single.direction, PlantareDirection.owedToMe);
+    expect(plantares.single.owedDescription, 'un puñado');
+
+    final lot = await (db.select(
+      db.lots,
+    )..where((l) => l.id.equals(lotId))).getSingle();
+    expect(lot.quantityPrecise, 0);
+    expect(lot.offerStatus, OfferStatus.private);
+    expect(lot.priceAmount, isNull);
+
+    final movements = await db.select(db.movements).get();
+    expect(movements.single.type, MovementType.given);
+    expect(movements.single.plantareId, plantares.single.id);
+    await disposeTree(tester);
+  });
+
+  testWidgets('receiving hides the how-much choice and mirrors directions', (
+    tester,
+  ) async {
+    final repo = newTestRepository(db);
+    final id = await repo.addQuickVariety(label: 'Maize');
+    await repo.addLot(varietyId: id);
+
+    await tester.pumpWidget(
+      wrapDetail(
+        repository: repo,
+        varietyId: id,
+        species: newTestSpeciesRepository(db),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byKey(const Key('detail.handover')));
+    await tester.pumpAndSettle();
+
+    await tester.tap(
+      find.byKey(const Key('handover.direction.iReceived')),
+    );
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('handover.allOfIt')), findsNothing);
+
+    await tester.ensureVisible(find.byKey(const Key('handover.save')));
+    await tester.tap(find.byKey(const Key('handover.save')));
+    await tester.pumpAndSettle();
+
+    final movements = await db.select(db.movements).get();
+    expect(movements.single.type, MovementType.received);
+    await disposeTree(tester);
+  });
+}