Batch disposal

backend/app/main.py

@@ -134,6 +134,10 @@ class BatchUpdate(BaseModel):
     notes: Optional[str] = None
 
 
+class BatchDisposeRequest(BaseModel):
+    notes: Optional[str] = None
+
+
 class BatchResponse(BaseModel):
     id: int
     drug_variant_id: int
@@ -150,6 +154,10 @@ class BatchResponse(BaseModel):
     location_name: Optional[str] = None
     notes: Optional[str] = None
     received_at: datetime
+    disposed_at: Optional[datetime] = None
+    disposed_by_user_id: Optional[int] = None
+    disposed_quantity: Optional[float] = None
+    disposal_notes: Optional[str] = None
 
     class Config:
         from_attributes = True
@@ -384,6 +392,10 @@ def serialize_batch_response(db: Session, batch: Batch) -> Dict[str, Any]:
         "location_name": location.name if location else None,
         "notes": batch.notes,
         "received_at": batch.received_at,
+        "disposed_at": batch.disposed_at,
+        "disposed_by_user_id": batch.disposed_by_user_id,
+        "disposed_quantity": batch.disposed_quantity,
+        "disposal_notes": batch.disposal_notes,
     }
 
 
@@ -480,6 +492,7 @@ def resolve_pack_quantity(
 def resolve_requested_allocations(
     db: Session,
     variant_id: int,
+    variant_quantity: float,
     requested_quantity: float,
     requested_allocations: List[DispensingAllocationCreate],
     dispense_mode: str,
@@ -487,6 +500,8 @@ def resolve_requested_allocations(
 ) -> List[Dict[str, Any]]:
     """Validate explicit batch allocations against in-date stock for the variant."""
     today = date.today()
+    total_batched_quantity = sum(float(batch.quantity or 0) for batch in db.query(Batch).filter(Batch.drug_variant_id == variant_id).all())
+    legacy_unbatched_quantity = max(0.0, float(variant_quantity or 0) - total_batched_quantity)
     eligible_batches = (
         db.query(Batch)
         .filter(
@@ -499,7 +514,18 @@ def resolve_requested_allocations(
     )
 
     if not eligible_batches:
-        raise HTTPException(status_code=400, detail="No in-date stock batches available for this variant")
+        if dispense_mode == "pack":
+            raise HTTPException(status_code=400, detail="Whole-pack dispensing requires batched stock with pack information")
+        if requested_allocations:
+            raise HTTPException(status_code=400, detail="Batch allocations cannot be supplied when dispensing legacy stock")
+        if legacy_unbatched_quantity <= 0:
+            raise HTTPException(status_code=400, detail="No in-date stock batches available for this variant")
+        if requested_quantity - legacy_unbatched_quantity > 1e-6:
+            raise HTTPException(
+                status_code=400,
+                detail=f"Insufficient unbatched stock. Available: {legacy_unbatched_quantity}, Requested: {requested_quantity}",
+            )
+        return []
 
     if not requested_allocations:
         raise HTTPException(status_code=400, detail="At least one batch allocation is required")
@@ -1329,6 +1355,7 @@ def dispense_drug(dispensing: DispensingCreate, db: Session = Depends(get_db), c
     allocations = resolve_requested_allocations(
         db,
         variant_id=variant.id,
+        variant_quantity=variant.quantity,
         requested_quantity=dispense_qty,
         requested_allocations=dispensing.allocations,
         dispense_mode=dispense_mode,
@@ -1336,7 +1363,7 @@ def dispense_drug(dispensing: DispensingCreate, db: Session = Depends(get_db), c
     )
 
     user_name = dispensing.user_name or current_user.username
-    primary_batch_id = allocations[0]["batch"].id
+    primary_batch_id = allocations[0]["batch"].id if allocations else None
 
     db_dispensing = Dispensing(
         drug_variant_id=dispensing.drug_variant_id,
@@ -1669,6 +1696,10 @@ def update_batch(batch_id: int, payload: BatchUpdate, db: Session = Depends(get_
         "expiry_date": batch.expiry_date,
         "location_id": batch.location_id,
         "notes": batch.notes,
+        "disposed_at": batch.disposed_at,
+        "disposed_by_user_id": batch.disposed_by_user_id,
+        "disposed_quantity": batch.disposed_quantity,
+        "disposal_notes": batch.disposal_notes,
     }
 
     if payload.batch_number is not None:
@@ -1751,6 +1782,58 @@ def update_batch(batch_id: int, payload: BatchUpdate, db: Session = Depends(get_
     return serialize_batch_response(db, batch)
 
 
+@router.post("/batches/{batch_id}/dispose", response_model=BatchResponse)
+def dispose_batch(batch_id: int, payload: BatchDisposeRequest, db: Session = Depends(get_db), current_user: User = Depends(get_current_non_readonly_user)):
+    batch = db.query(Batch).filter(Batch.id == batch_id).first()
+    if not batch:
+        raise HTTPException(status_code=404, detail="Batch not found")
+
+    if batch.disposed_at is not None:
+        raise HTTPException(status_code=400, detail="Batch has already been disposed")
+
+    if batch.quantity <= 0:
+        raise HTTPException(status_code=400, detail="Batch has no remaining stock to dispose")
+
+    if batch.expiry_date >= date.today():
+        raise HTTPException(status_code=400, detail="Only expired batches can be marked as disposed")
+
+    variant = db.query(DrugVariant).filter(DrugVariant.id == batch.drug_variant_id).first()
+    if not variant:
+        raise HTTPException(status_code=404, detail="Parent variant not found")
+
+    disposed_quantity = batch.quantity
+    if variant.quantity - disposed_quantity < -1e-6:
+        raise HTTPException(status_code=400, detail="Variant quantity cannot become negative during disposal")
+
+    batch.quantity = 0
+    batch.disposed_at = datetime.utcnow()
+    batch.disposed_by_user_id = current_user.id
+    batch.disposed_quantity = disposed_quantity
+    batch.disposal_notes = (payload.notes or '').strip() or None
+    recompute_batch_pack_state(batch)
+    variant.quantity = max(0, variant.quantity - disposed_quantity)
+
+    write_audit_log(
+        db,
+        action="batch.dispose",
+        entity_type="batch",
+        entity_id=batch.id,
+        actor=current_user,
+        details={
+            "batch_number": batch.batch_number,
+            "variant_id": batch.drug_variant_id,
+            "disposed_quantity": disposed_quantity,
+            "expiry_date": batch.expiry_date.isoformat() if batch.expiry_date else None,
+            "location_id": batch.location_id,
+            "disposal_notes": batch.disposal_notes,
+        },
+    )
+
+    db.commit()
+    db.refresh(batch)
+    return serialize_batch_response(db, batch)
+
+
 @router.get("/audit", response_model=List[Dict[str, Any]])
 def list_audit_events(skip: int = 0, limit: int = 200, db: Session = Depends(get_db), current_user: User = Depends(get_current_admin_user)):
     events = db.query(AuditLog).order_by(AuditLog.created_at.desc()).offset(skip).limit(limit).all()
@@ -1984,26 +2067,13 @@ def report_batch_attention(
         .join(DrugVariant, Batch.drug_variant_id == DrugVariant.id)
         .join(Drug, DrugVariant.drug_id == Drug.id)
         .join(Location, Batch.location_id == Location.id)
-        .filter(Batch.quantity > 0)
+        .filter(Batch.quantity > 0, Batch.expiry_date < today)
         .order_by(Batch.expiry_date.asc(), Drug.name.asc(), DrugVariant.strength.asc(), Batch.batch_number.asc())
         .all()
     )
 
     result = []
     for batch, variant, drug, location in rows:
-        is_expired = batch.expiry_date < today
-        is_partial = bool((batch.current_loose_base_units or 0) > 1e-6)
-
-        if not is_expired and not is_partial:
-            continue
-
-        if is_expired and is_partial:
-            status = "expired_partial"
-        elif is_expired:
-            status = "expired"
-        else:
-            status = "partial"
-
         result.append(
             {
                 "batch_id": batch.id,
@@ -2014,7 +2084,7 @@ def report_batch_attention(
                 "unit": variant.unit,
                 "location": location.name,
                 "expiry_date": batch.expiry_date,
-                "status": status,
+                "status": "expired",
                 "received_pack_label": None,
                 "current_full_pack_count": batch.current_full_pack_count,
                 "current_loose_base_units": batch.current_loose_base_units,

backend/app/migrate_compliance.py

@@ -107,6 +107,22 @@ def migrate_compliance_schema() -> None:
             cursor.execute("ALTER TABLE batches ADD COLUMN current_loose_base_units FLOAT")
             print("Added batches.current_loose_base_units")
 
+        if _table_exists(cursor, "batches") and not _column_exists(cursor, "batches", "disposed_at"):
+            cursor.execute("ALTER TABLE batches ADD COLUMN disposed_at DATETIME")
+            print("Added batches.disposed_at")
+
+        if _table_exists(cursor, "batches") and not _column_exists(cursor, "batches", "disposed_by_user_id"):
+            cursor.execute("ALTER TABLE batches ADD COLUMN disposed_by_user_id INTEGER")
+            print("Added batches.disposed_by_user_id")
+
+        if _table_exists(cursor, "batches") and not _column_exists(cursor, "batches", "disposed_quantity"):
+            cursor.execute("ALTER TABLE batches ADD COLUMN disposed_quantity FLOAT")
+            print("Added batches.disposed_quantity")
+
+        if _table_exists(cursor, "batches") and not _column_exists(cursor, "batches", "disposal_notes"):
+            cursor.execute("ALTER TABLE batches ADD COLUMN disposal_notes VARCHAR")
+            print("Added batches.disposal_notes")
+
         if _table_exists(cursor, "dispensings") and not _column_exists(cursor, "dispensings", "requested_pack_id"):
             cursor.execute("ALTER TABLE dispensings ADD COLUMN requested_pack_id INTEGER")
             print("Added dispensings.requested_pack_id")

backend/app/models.py

@@ -92,6 +92,10 @@ class Batch(Base):
     location_id = Column(Integer, ForeignKey("locations.id"), nullable=False, index=True)
     received_at = Column(DateTime(timezone=True), nullable=False, server_default=func.now(), index=True)
     notes = Column(String, nullable=True)
+    disposed_at = Column(DateTime(timezone=True), nullable=True, index=True)
+    disposed_by_user_id = Column(Integer, ForeignKey("users.id"), nullable=True)
+    disposed_quantity = Column(Float, nullable=True)
+    disposal_notes = Column(String, nullable=True)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())
 

frontend/app.js

@@ -12,6 +12,26 @@ let deliveryDrugId = null;
 let deliveryLineCounter = 0;
 let deliveryLocations = [];
 let currentDispenseBatches = [];
+let currentDispenseLegacyQuantity = 0;
+
+function resetDisposeBatchModal() {
+    const form = document.getElementById('disposeBatchForm');
+    if (form) {
+        form.reset();
+    }
+    const batchIdInput = document.getElementById('disposeBatchId');
+    const batchNameInput = document.getElementById('disposeBatchName');
+    if (batchIdInput) batchIdInput.value = '';
+    if (batchNameInput) batchNameInput.value = '';
+}
+
+function closeDisposeBatchModal() {
+    resetDisposeBatchModal();
+    const modal = document.getElementById('disposeBatchModal');
+    if (modal) {
+        closeModal(modal);
+    }
+}
 
 // Toast notification system
 function showToast(message, type = 'info', duration = 3000) {
@@ -209,6 +229,7 @@ function setupEventListeners() {
     const prescribeForm = document.getElementById('prescribeForm');
     const editForm = document.getElementById('editForm');
     const printNotesForm = document.getElementById('printNotesForm');
+    const disposeBatchForm = document.getElementById('disposeBatchForm');
     const addModal = document.getElementById('addModal');
     const addVariantModal = document.getElementById('addVariantModal');
     const editVariantModal = document.getElementById('editVariantModal');
@@ -216,6 +237,7 @@ function setupEventListeners() {
     const prescribeModal = document.getElementById('prescribeModal');
     const editModal = document.getElementById('editModal');
     const printNotesModal = document.getElementById('printNotesModal');
+    const disposeBatchModal = document.getElementById('disposeBatchModal');
     const batchReceiveModal = document.getElementById('batchReceiveModal');
     const receiveDeliveryModal = document.getElementById('receiveDeliveryModal');
     const addDrugBtn = document.getElementById('addDrugBtn');
@@ -227,6 +249,7 @@ function setupEventListeners() {
     const cancelDispenseBtn = document.getElementById('cancelDispenseBtn');
     const cancelPrescribeBtn = document.getElementById('cancelPrescribeBtn');
     const cancelEditBtn = document.getElementById('cancelEditBtn');
+    const cancelDisposeBatchBtn = document.getElementById('cancelDisposeBatchBtn');
     const cancelBatchReceiveBtn = document.getElementById('cancelBatchReceiveBtn');
     const cancelReceiveDeliveryBtn = document.getElementById('cancelReceiveDeliveryBtn');
     const addDeliveryLineBtn = document.getElementById('addDeliveryLineBtn');
@@ -237,6 +260,7 @@ function setupEventListeners() {
     const variantStrengthInput = document.getElementById('variantStrength');
     const editVariantUnitSelect = document.getElementById('editVariantUnit');
     const dispenseModeInputs = document.querySelectorAll('input[name="dispenseMode"]');
+    const dispensePrintEnabled = document.getElementById('dispensePrintEnabled');
     const showAllBtn = document.getElementById('showAllBtn');
     const showLowStockBtn = document.getElementById('showLowStockBtn');
     const locationFilterSelect = document.getElementById('locationFilterSelect');
@@ -257,6 +281,7 @@ function setupEventListeners() {
     if (prescribeForm) prescribeForm.addEventListener('submit', handlePrescribeDrug);
     if (editForm) editForm.addEventListener('submit', handleEditDrug);
     if (printNotesForm) printNotesForm.addEventListener('submit', handlePrintNotes);
+    if (disposeBatchForm) disposeBatchForm.addEventListener('submit', handleDisposeBatch);
     
     const batchReceiveForm = document.getElementById('batchReceiveForm');
     if (batchReceiveForm) batchReceiveForm.addEventListener('submit', handleBatchReceive);
@@ -286,6 +311,9 @@ function setupEventListeners() {
         });
     }
     dispenseModeInputs.forEach(input => input.addEventListener('change', updateDispenseModeUi));
+    if (dispensePrintEnabled) {
+        dispensePrintEnabled.addEventListener('change', toggleDispensePrintFields);
+    }
     
     if (addDrugBtn) addDrugBtn.addEventListener('click', () => openModal(addModal));
     if (printNotesBtn) printNotesBtn.addEventListener('click', () => openModal(printNotesModal));
@@ -301,6 +329,7 @@ function setupEventListeners() {
     if (cancelDispenseBtn) cancelDispenseBtn.addEventListener('click', () => closeModal(dispenseModal));
     if (cancelPrescribeBtn) cancelPrescribeBtn.addEventListener('click', () => closeModal(prescribeModal));
     if (cancelEditBtn) cancelEditBtn.addEventListener('click', closeEditModal);
+    if (cancelDisposeBatchBtn) cancelDisposeBatchBtn.addEventListener('click', closeDisposeBatchModal);
     
     const cancelPrintNotesBtn = document.getElementById('cancelPrintNotesBtn');
     if (cancelPrintNotesBtn) cancelPrintNotesBtn.addEventListener('click', () => closeModal(printNotesModal));
@@ -331,6 +360,9 @@ function setupEventListeners() {
     
     closeButtons.forEach(btn => btn.addEventListener('click', (e) => {
         const modal = e.target.closest('.modal');
+        if (modal?.id === 'disposeBatchModal') {
+            resetDisposeBatchModal();
+        }
         closeModal(modal);
     }));
     
@@ -401,6 +433,9 @@ function setupEventListeners() {
     // Close modal when clicking outside
     window.addEventListener('click', (e) => {
         if (e.target.classList.contains('modal')) {
+            if (e.target.id === 'disposeBatchModal') {
+                resetDisposeBatchModal();
+            }
             closeModal(e.target);
         }
     });
@@ -481,7 +516,10 @@ function updateDispenseDrugSelect() {
         packPreview.textContent = 'Select a pack and whole-number count.';
     }
 
+    resetDispensePrintFields();
+
     currentDispenseBatches = [];
+    currentDispenseLegacyQuantity = 0;
 
     updateDispenseModeUi();
 }
@@ -490,6 +528,120 @@ function getSelectedDispenseMode() {
     return document.querySelector('input[name="dispenseMode"]:checked')?.value || 'subunit';
 }
 
+function hasLegacyDispenseStock() {
+    return currentDispenseBatches.length === 0 && currentDispenseLegacyQuantity > 0;
+}
+
+function getDefaultLabelExpiryDate() {
+    const defaultExpiry = new Date();
+    defaultExpiry.setMonth(defaultExpiry.getMonth() + 1);
+    return defaultExpiry.toISOString().split('T')[0];
+}
+
+function toggleDispensePrintFields() {
+    const printEnabled = document.getElementById('dispensePrintEnabled');
+    const printFields = document.getElementById('dispensePrintFields');
+    const printHelpText = document.getElementById('dispensePrintHelpText');
+    const dosageInput = document.getElementById('dispenseDosage');
+    const legacyExpiryGroup = document.getElementById('dispenseLegacyExpiryGroup');
+    const legacyExpiryInput = document.getElementById('dispenseLegacyExpiry');
+    const isEnabled = Boolean(printEnabled?.checked);
+    const legacyStockOnly = hasLegacyDispenseStock();
+
+    if (printFields) {
+        printFields.style.display = isEnabled ? '' : 'none';
+    }
+    if (printHelpText) {
+        printHelpText.textContent = legacyStockOnly
+            ? 'Uses the dispensed quantity, the animal name/ID entered above, the logged-in user, and a manually entered expiry date for this legacy stock.'
+            : 'Uses the dispensed quantity, the animal name/ID entered above, the logged-in user, and the latest expiry date from the allocated batches.';
+    }
+    if (dosageInput) {
+        dosageInput.required = isEnabled;
+    }
+    if (legacyExpiryGroup) {
+        legacyExpiryGroup.style.display = isEnabled && legacyStockOnly ? '' : 'none';
+    }
+    if (legacyExpiryInput) {
+        legacyExpiryInput.required = isEnabled && legacyStockOnly;
+        if (!legacyStockOnly) {
+            legacyExpiryInput.value = '';
+        }
+    }
+}
+
+function resetDispensePrintFields() {
+    const printEnabled = document.getElementById('dispensePrintEnabled');
+    const dosageInput = document.getElementById('dispenseDosage');
+    const legacyExpiryInput = document.getElementById('dispenseLegacyExpiry');
+
+    if (printEnabled) {
+        printEnabled.checked = false;
+    }
+    if (dosageInput) {
+        dosageInput.value = '';
+    }
+    if (legacyExpiryInput) {
+        legacyExpiryInput.value = '';
+    }
+
+    toggleDispensePrintFields();
+}
+
+function formatLabelExpiryDate(expiryDate) {
+    const expiryParts = expiryDate.split('-');
+    return `${expiryParts[2]}/${expiryParts[1]}/${expiryParts[0]}`;
+}
+
+function getDrugContextForVariant(variantId) {
+    for (const drug of allDrugs) {
+        const variant = (drug.variants || []).find(item => item.id === variantId);
+        if (variant) {
+            return { drug, variant };
+        }
+    }
+    return { drug: null, variant: null };
+}
+
+function getLatestAllocatedBatchExpiryDate(allocationEntries) {
+    const allocatedBatches = allocationEntries
+        .map(entry => currentDispenseBatches.find(batch => batch.id === entry.batch_id))
+        .filter(batch => batch?.expiry_date);
+
+    if (allocatedBatches.length === 0) {
+        return null;
+    }
+
+    return allocatedBatches
+        .map(batch => batch.expiry_date)
+        .sort((left, right) => new Date(right) - new Date(left))[0];
+}
+
+async function requestLabelPrint({ animalName, drugName, variantStrength, quantity, unit, dosage, expiryDate }) {
+    const labelData = {
+        variables: {
+            practice_name: 'Many Tears Animal Rescue',
+            animal_name: animalName,
+            drug_name: `${drugName} ${variantStrength}`,
+            dosage,
+            quantity: `${quantity} ${unit}`,
+            expiry_date: formatLabelExpiryDate(expiryDate)
+        }
+    };
+
+    const labelResponse = await apiCall('/labels/print', {
+        method: 'POST',
+        body: JSON.stringify(labelData)
+    });
+
+    if (!labelResponse.ok) {
+        const error = await labelResponse.json();
+        throw new Error(error.detail || 'Label printing request failed');
+    }
+
+    return labelResponse.json();
+}
+
 function populateDispensePackSelect(variant) {
     const packSelect = document.getElementById('dispensePackSelect');
     const packCount = document.getElementById('dispensePackCount');
@@ -622,6 +774,7 @@ function isBatchExpired(batch) {
 
 function renderVariantInventoryDetails(variant) {
     const activePacks = getActivePacksForVariant(variant);
+    const isReadOnly = currentUser?.role === 'readonly';
     const batches = [...(variant.batches || [])]
         .filter(batch => Number(batch.quantity) > 0)
         .sort((a, b) => new Date(a.expiry_date) - new Date(b.expiry_date));
@@ -638,18 +791,31 @@ function renderVariantInventoryDetails(variant) {
     const batchesHtml = batches.length > 0
         ? batches.map(batch => {
             const locationLabel = getBatchLocationLabel(batch);
+            const expired = isBatchExpired(batch);
             const hasPackState = batch.current_full_pack_count != null && batch.current_loose_base_units != null && batch.received_pack_label;
             const stocktakeLabel = hasPackState
                 ? `${formatDisplayNumber(batch.current_full_pack_count)} full ${escapeHtml(batch.received_pack_label)} + ${formatDisplayNumber(batch.current_loose_base_units)} ${escapeHtml(variant.unit)} loose`
                 : `${formatDisplayNumber(batch.quantity)} ${escapeHtml(variant.unit)}`;
+            const batchCardStyles = expired
+                ? 'padding: 8px; background: #fff1f2; border: 1px solid #f3a6ad; border-radius: 5px; font-size: 0.9em;'
+                : 'padding: 8px; background: #ffffff; border: 1px solid #d8e2ea; border-radius: 5px; font-size: 0.9em;';
+            const expiryStyles = expired ? 'color: #b91c1c; font-weight: 700;' : 'color: #4b5563;';
 
             return `
-                <div style="padding: 8px; background: #ffffff; border: 1px solid #d8e2ea; border-radius: 5px; font-size: 0.9em;">
+                <div style="${batchCardStyles}">
                     <div style="display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap;">
-                        <strong>${escapeHtml(batch.batch_number)}</strong>
-                        <span style="color: #4b5563;">Expires ${formatDisplayDate(batch.expiry_date)}</span>
+                        <div style="display: flex; align-items: center; gap: 8px; flex-wrap: wrap;">
+                            <strong>${escapeHtml(batch.batch_number)}</strong>
+                            ${expired ? '<span style="background: #b91c1c; color: white; padding: 2px 6px; border-radius: 999px; font-size: 0.75em; font-weight: 700;">Expired</span>' : ''}
+                        </div>
+                        <span style="${expiryStyles}">Expires ${formatDisplayDate(batch.expiry_date)}</span>
                     </div>
                     <div style="margin-top: 4px; color: #374151;">${escapeHtml(locationLabel)} | ${stocktakeLabel}</div>
+                    ${expired && !isReadOnly ? `
+                        <div style="margin-top: 8px; display: flex; justify-content: flex-end;">
+                            <button class="btn btn-danger btn-small" onclick="event.stopPropagation(); disposeBatch(${batch.id}, '${String(batch.batch_number).replace(/'/g, "\\'")}')">Dispose Expired Batch</button>
+                        </div>
+                    ` : ''}
                 </div>
             `;
         }).join('')
@@ -671,6 +837,57 @@ function renderVariantInventoryDetails(variant) {
     `;
 }
 
+function disposeBatch(batchId, batchNumber) {
+    const modal = document.getElementById('disposeBatchModal');
+    const batchIdInput = document.getElementById('disposeBatchId');
+    const batchNameInput = document.getElementById('disposeBatchName');
+    const notesInput = document.getElementById('disposeBatchNotes');
+
+    if (!modal || !batchIdInput || !batchNameInput || !notesInput) {
+        showToast('Dispose batch modal is unavailable.', 'error');
+        return;
+    }
+
+    batchIdInput.value = String(batchId);
+    batchNameInput.value = batchNumber;
+    notesInput.value = '';
+    openModal(modal);
+}
+
+async function handleDisposeBatch(e) {
+    e.preventDefault();
+
+    const batchId = parseInt(document.getElementById('disposeBatchId')?.value || '', 10);
+    const notes = document.getElementById('disposeBatchNotes')?.value.trim() || '';
+    const modal = document.getElementById('disposeBatchModal');
+
+    if (!batchId) {
+        showToast('Batch disposal context is unavailable.', 'error');
+        return;
+    }
+
+    try {
+        const response = await apiCall(`/batches/${batchId}/dispose`, {
+            method: 'POST',
+            body: JSON.stringify({ notes: notes || null })
+        });
+
+        if (!response.ok) {
+            const error = await response.json();
+            throw new Error(error.detail || 'Failed to dispose batch');
+        }
+
+        if (modal) {
+            closeDisposeBatchModal();
+        }
+        await loadDrugs();
+        showToast('Expired batch marked as disposed.', 'success');
+    } catch (error) {
+        console.error('Error disposing batch:', error);
+        showToast('Failed to dispose batch: ' + error.message, 'error');
+    }
+}
+
 function getBatchLocationLabel(batch) {
     return batch.location_name || batch.location?.name || `Location #${batch.location_id}`;
 }
@@ -765,10 +982,16 @@ function getBatchAvailableDispenseQuantity(batch, mode = getSelectedDispenseMode
 }
 
 function getTotalAvailableDispenseQuantity(mode = getSelectedDispenseMode(), selectedPack = getSelectedDispensePack()) {
+    if (hasLegacyDispenseStock()) {
+        return mode === 'pack' ? 0 : currentDispenseLegacyQuantity;
+    }
     return currentDispenseBatches.reduce((sum, batch) => sum + getBatchAvailableDispenseQuantity(batch, mode, selectedPack), 0);
 }
 
 function getTotalAvailableDispensePackCount(selectedPack = getSelectedDispensePack()) {
+    if (hasLegacyDispenseStock()) {
+        return 0;
+    }
     if (!selectedPack) {
         return 0;
     }
@@ -922,7 +1145,9 @@ async function updateBatchInfo() {
         const packSelect = document.getElementById('dispensePackSelect');
         if (packSelect) packSelect.innerHTML = '<option value="">-- Select pack --</option>';
         currentDispenseBatches = [];
+        currentDispenseLegacyQuantity = 0;
         renderExpiredDispenseBatches([]);
+        toggleDispensePrintFields();
         updateDispenseAllocationSummary();
         return;
     }
@@ -946,13 +1171,20 @@ async function updateBatchInfo() {
         const stockedBatches = batches.filter(b => b.quantity > 0);
         const expiredBatches = stockedBatches.filter(isBatchExpired);
         const activeBatches = stockedBatches.filter(batch => !isBatchExpired(batch));
+        const totalBatchQuantity = stockedBatches.reduce((sum, batch) => sum + Number(batch.quantity || 0), 0);
+        currentDispenseLegacyQuantity = Math.max(0, Number(variant?.quantity || 0) - totalBatchQuantity);
         currentDispenseBatches = activeBatches;
         renderExpiredDispenseBatches(expiredBatches);
         
         if (activeBatches.length === 0) {
-            batchInfoContent.innerHTML = expiredBatches.length > 0
-                ? '<p style="color: #d32f2f; margin: 0;">⚠️ No in-date batches available for this variant. Expired batches are hidden from selection.</p>'
-                : '<p style="color: #d32f2f; margin: 0;">⚠️ No active batches available for this variant</p>';
+            if (currentDispenseLegacyQuantity > 0) {
+                batchInfoContent.innerHTML = `<div style="padding: 10px; background: #fff8e8; border: 1px solid #f3d18d; border-radius: 4px; color: #7a4f01;"><strong>Legacy stock only.</strong> ${formatDisplayNumber(currentDispenseLegacyQuantity)} ${escapeHtml(variant?.unit || 'units')} available outside the batch system. Dispense by quantity only; whole-pack allocation is unavailable.</div>`;
+            } else {
+                batchInfoContent.innerHTML = expiredBatches.length > 0
+                    ? '<p style="color: #d32f2f; margin: 0;">⚠️ No in-date batches available for this variant. Expired batches are hidden from selection.</p>'
+                    : '<p style="color: #d32f2f; margin: 0;">⚠️ No active batches available for this variant</p>';
+            }
+                    toggleDispensePrintFields();
             updateDispenseAllocationSummary();
             return;
         }
@@ -961,12 +1193,15 @@ async function updateBatchInfo() {
         activeBatches.sort((a, b) => new Date(a.expiry_date) - new Date(b.expiry_date));
         currentDispenseBatches = activeBatches;
         renderDispenseBatchAllocationRows(activeBatches);
+        toggleDispensePrintFields();
         autoAllocateDispenseBatches();
     } catch (error) {
         console.error('Error loading batches:', error);
         batchInfoContent.innerHTML = '<p style="color: #d32f2f; margin: 0;">Error loading batches</p>';
         currentDispenseBatches = [];
+        currentDispenseLegacyQuantity = 0;
         renderExpiredDispenseBatches([]);
+        toggleDispensePrintFields();
         updateDispenseAllocationSummary();
     }
 }
@@ -1019,10 +1254,11 @@ function updateDispenseAllocationSummary() {
     const inputs = Array.from(document.querySelectorAll('.dispense-batch-allocation'));
     const mode = getSelectedDispenseMode();
     const selectedPack = getSelectedDispensePack();
+    const legacyStockOnly = hasLegacyDispenseStock();
     const totalAvailableQuantity = getTotalAvailableDispenseQuantity(mode, selectedPack);
     const totalAvailablePacks = mode === 'pack' ? getTotalAvailableDispensePackCount(selectedPack) : 0;
 
-    if (!summarySection || !summaryContent || !variantId || !inputs.length) {
+    if (!summarySection || !summaryContent || !variantId || (!inputs.length && !legacyStockOnly)) {
         if (summarySection) summarySection.style.display = 'none';
         return;
     }
@@ -1056,7 +1292,22 @@ function updateDispenseAllocationSummary() {
     summarySection.style.display = 'block';
 
     if (requestedQuantity <= 0) {
-        summaryContent.innerHTML = `<span style="color: #666;">Enter a dispense amount to allocate batches.</span>`;
+        summaryContent.innerHTML = legacyStockOnly
+            ? `<span style="color: #666;">Enter a dispense quantity. ${formatDisplayNumber(currentDispenseLegacyQuantity)} ${escapeHtml(unitLabel)} of legacy stock is available outside batches.</span>`
+            : `<span style="color: #666;">Enter a dispense amount to allocate batches.</span>`;
+        return;
+    }
+
+    if (legacyStockOnly) {
+        if (mode === 'pack') {
+            summaryContent.innerHTML = `<span style="color: #d32f2f; font-weight: 600;">Whole-pack dispensing is unavailable for stock that is not attached to batches.</span>`;
+            return;
+        }
+        if (requestedQuantity - currentDispenseLegacyQuantity > 1e-6) {
+            summaryContent.innerHTML = `<span style="color: #d32f2f; font-weight: 600;">Requested ${formatDisplayNumber(requestedQuantity)} ${escapeHtml(unitLabel)} but only ${formatDisplayNumber(currentDispenseLegacyQuantity)} ${escapeHtml(unitLabel)} of legacy stock is available.</span>`;
+            return;
+        }
+        summaryContent.innerHTML = `<span style="color: #1565c0; font-weight: 600;">Dispensing ${formatDisplayNumber(requestedQuantity)} ${escapeHtml(unitLabel)} from legacy stock outside batches.</span>`;
         return;
     }
 
@@ -1289,10 +1540,14 @@ async function handleDispenseDrug(e) {
     const requestedPackCountValue = document.getElementById('dispensePackCount').value;
     const animalName = document.getElementById('dispenseAnimal').value;
     const notes = document.getElementById('dispenseNotes').value;
+    const printEnabled = document.getElementById('dispensePrintEnabled')?.checked;
+    const dosage = document.getElementById('dispenseDosage')?.value.trim() || '';
+    const legacyExpiryDate = document.getElementById('dispenseLegacyExpiry')?.value || '';
 
     const selectedPackId = requestedPackIdValue ? parseInt(requestedPackIdValue, 10) : null;
     const selectedPackCount = requestedPackCountValue ? parseFloat(requestedPackCountValue) : null;
     const variant = getVariantById(variantId);
+    const legacyStockOnly = hasLegacyDispenseStock();
     const selectedPack = variant && selectedPackId
         ? getActivePacksForVariant(variant).find(pack => pack.id === selectedPackId)
         : null;
@@ -1303,6 +1558,10 @@ async function handleDispenseDrug(e) {
     }
 
     if (dispenseMode === 'pack') {
+        if (legacyStockOnly) {
+            showToast('Whole-pack dispensing is unavailable for stock that is not attached to batches.', 'warning');
+            return;
+        }
         if (!selectedPack) {
             showToast('Please select a pack type for whole-pack dispensing.', 'warning');
             return;
@@ -1352,7 +1611,7 @@ async function handleDispenseDrug(e) {
         return;
     }
 
-    if (allocations.length === 0) {
+    if (!legacyStockOnly && allocations.length === 0) {
         showToast('Allocate quantity against at least one batch.', 'warning');
         return;
     }
@@ -1374,11 +1633,27 @@ async function handleDispenseDrug(e) {
         }
     }
 
-    if (Math.abs(allocatedTotal - quantity) > 1e-6) {
+    if (!legacyStockOnly && Math.abs(allocatedTotal - quantity) > 1e-6) {
         showToast('Batch allocations must exactly match the requested dispense quantity.', 'warning');
         return;
     }
 
+    const printExpiryDate = printEnabled
+        ? (legacyStockOnly ? legacyExpiryDate : getLatestAllocatedBatchExpiryDate(allocationEntries))
+        : null;
+
+    if (printEnabled && (!animalName.trim() || !dosage)) {
+        showToast('Animal name/ID and dosage instructions are required to print a label.', 'warning');
+        return;
+    }
+
+    if (printEnabled && !printExpiryDate) {
+        showToast(legacyStockOnly
+            ? 'Enter an expiry date to print a label for legacy stock.'
+            : 'Unable to determine a batch expiry date for the selected allocation.', 'warning');
+        return;
+    }
+
     const dispensingData = {
         drug_variant_id: variantId,
         quantity: quantity,
@@ -1401,10 +1676,40 @@ async function handleDispenseDrug(e) {
             throw new Error(error.detail || 'Failed to dispense drug');
         }
 
+        let successMessage = 'Drug dispensed successfully!';
+        let toastType = 'success';
+
+        if (printEnabled) {
+            try {
+                const { drug } = getDrugContextForVariant(variantId);
+                const labelResult = await requestLabelPrint({
+                    animalName: animalName.trim(),
+                    drugName: drug?.name || 'Unknown drug',
+                    variantStrength: variant?.strength || '',
+                    quantity,
+                    unit: variant?.unit || 'units',
+                    dosage,
+                    expiryDate: printExpiryDate
+                });
+
+                if (!labelResult.success) {
+                    successMessage = `Drug dispensed, but label printing failed: ${labelResult.message}`;
+                    toastType = 'warning';
+                } else {
+                    successMessage = 'Drug dispensed and label printed successfully!';
+                }
+            } catch (printError) {
+                console.error('Error printing label after dispensing:', printError);
+                successMessage = 'Drug dispensed, but label printing failed: ' + printError.message;
+                toastType = 'warning';
+            }
+        }
+
         document.getElementById('dispenseForm').reset();
+        resetDispensePrintFields();
         closeModal(document.getElementById('dispenseModal'));
         await loadDrugs();
-        showToast('Drug dispensed successfully!', 'success');
+        showToast(successMessage, toastType, toastType === 'warning' ? 5000 : undefined);
     } catch (error) {
         console.error('Error dispensing drug:', error);
         showToast('Failed to dispense drug: ' + error.message, 'error');
@@ -1879,9 +2184,7 @@ function prescribeVariant(variantId, drugName, variantStrength, unit) {
     }
     
     // Set default expiry date to 1 month from now
-    const defaultExpiry = new Date();
-    defaultExpiry.setMonth(defaultExpiry.getMonth() + 1);
-    document.getElementById('prescribeExpiry').value = defaultExpiry.toISOString().split('T')[0];
+    document.getElementById('prescribeExpiry').value = getDefaultLabelExpiryDate();
     
     // Open prescribe modal
     openModal(document.getElementById('prescribeModal'));
@@ -1907,34 +2210,17 @@ async function handlePrescribeDrug(e) {
         return;
     }
 
-    // Convert expiry date to DD/MM/YYYY format
-    const expiryParts = expiryDate.split('-');
-    const formattedExpiry = `${expiryParts[2]}/${expiryParts[1]}/${expiryParts[0]}`;
-
     try {
         // First, print the label
-        const labelData = {
-            variables: {
-                practice_name: "Many Tears Animal Rescue",
-                animal_name: animalName,
-                drug_name: `${drugName} ${variantStrength}`,
-                dosage: dosage,
-                quantity: `${quantity} ${unit}`,
-                expiry_date: formattedExpiry
-            }
-        };
-
-        const labelResponse = await apiCall('/labels/print', {
-            method: 'POST',
-            body: JSON.stringify(labelData)
+        const labelResult = await requestLabelPrint({
+            animalName,
+            drugName,
+            variantStrength,
+            quantity,
+            unit,
+            dosage,
+            expiryDate
         });
-
-        if (!labelResponse.ok) {
-            const error = await labelResponse.json();
-            throw new Error(error.detail || 'Label printing request failed');
-        }
-
-        const labelResult = await labelResponse.json();
         console.log('Label print result:', labelResult);
         
         if (!labelResult.success) {

frontend/index.html

@@ -241,6 +241,24 @@
                         <label for="dispenseAnimal">Animal Name/ID</label>
                         <input type="text" id="dispenseAnimal">
                     </div>
+
+                    <div class="form-group" style="margin-top: 18px; padding: 12px; background: #f9fafb; border: 1px solid #d9e2ec; border-radius: 6px;">
+                        <label style="display: inline-flex; align-items: center; gap: 8px; margin-bottom: 0; font-weight: 600;">
+                            <input type="checkbox" id="dispensePrintEnabled">
+                            Print label after dispensing
+                        </label>
+                        <div id="dispensePrintFields" style="display: none; margin-top: 12px;">
+                            <p id="dispensePrintHelpText" style="margin: 0 0 12px; color: #666;">Uses the dispensed quantity, the animal name/ID entered above, the logged-in user, and the latest expiry date from the allocated batches.</p>
+                            <div class="form-group">
+                                <label for="dispenseDosage">Dosage Instructions *</label>
+                                <input type="text" id="dispenseDosage" placeholder="e.g., 1 tablet twice daily with food">
+                            </div>
+                            <div class="form-group" id="dispenseLegacyExpiryGroup" style="display: none;">
+                                <label for="dispenseLegacyExpiry">Expiry Date *</label>
+                                <input type="date" id="dispenseLegacyExpiry">
+                            </div>
+                        </div>
+                    </div>
                     
                     <div class="form-group">
                         <label for="dispenseNotes">Notes</label>
@@ -549,6 +567,36 @@
             </div>
         </div>
 
+        <!-- Dispose Batch Modal -->
+        <div id="disposeBatchModal" class="modal">
+            <div class="modal-content">
+                <span class="close">&times;</span>
+                <h2>Dispose Expired Batch</h2>
+                <form id="disposeBatchForm" novalidate>
+                    <input type="hidden" id="disposeBatchId">
+
+                    <div class="form-group">
+                        <label for="disposeBatchName">Batch</label>
+                        <input type="text" id="disposeBatchName" disabled>
+                    </div>
+
+                    <div class="form-group">
+                        <p style="margin: 0; color: #666;">This will mark the expired batch as disposed and remove its remaining stock from inventory.</p>
+                    </div>
+
+                    <div class="form-group">
+                        <label for="disposeBatchNotes">Disposal Note</label>
+                        <textarea id="disposeBatchNotes" rows="4" placeholder="Optional note for the audit log"></textarea>
+                    </div>
+
+                    <div class="form-actions">
+                        <button type="submit" class="btn btn-danger">Confirm Disposal</button>
+                        <button type="button" class="btn btn-secondary" id="cancelDisposeBatchBtn">Cancel</button>
+                    </div>
+                </form>
+            </div>
+        </div>
+
         <!-- Batch Receive Modal -->
         <div id="batchReceiveModal" class="modal">
             <div class="modal-content">

frontend/reports.html

@@ -31,7 +31,7 @@
                                 <label for="reportTypeSelect">Report</label>
                                 <select id="reportTypeSelect">
                                     <option value="dispensing" selected>Dispensing History</option>
-                                    <option value="batch_attention">Expired / Partial Batches</option>
+                                    <option value="batch_attention">Expired Batches</option>
                                     <option value="audit">Audit Trail (Raw)</option>
                                 </select>
                             </div>
@@ -88,6 +88,35 @@
         </div>
     </div>
 
+    <div id="disposeBatchModal" class="modal">
+        <div class="modal-content">
+            <span class="close">&times;</span>
+            <h2>Dispose Expired Batch</h2>
+            <form id="disposeBatchForm" novalidate>
+                <input type="hidden" id="disposeBatchId">
+
+                <div class="form-group">
+                    <label for="disposeBatchName">Batch</label>
+                    <input type="text" id="disposeBatchName" disabled>
+                </div>
+
+                <div class="form-group">
+                    <p style="margin: 0; color: #666;">This will mark the expired batch as disposed and remove its remaining stock from inventory.</p>
+                </div>
+
+                <div class="form-group">
+                    <label for="disposeBatchNotes">Disposal Note</label>
+                    <textarea id="disposeBatchNotes" rows="4" placeholder="Optional note for the audit log"></textarea>
+                </div>
+
+                <div class="form-actions">
+                    <button type="submit" class="btn btn-danger">Confirm Disposal</button>
+                    <button type="button" class="btn btn-secondary" id="cancelDisposeBatchBtn">Cancel</button>
+                </div>
+            </form>
+        </div>
+    </div>
+
     <script src="reports.js"></script>
 </body>
 </html>

frontend/reports.js

@@ -10,6 +10,34 @@ let activeReportType = 'dispensing';
 const batchLookupById = new Map();
 const loadedBatchVariants = new Set();
 
+function openModal(modal) {
+    if (!modal) return;
+    modal.classList.add('show');
+    document.body.style.overflow = 'hidden';
+}
+
+function closeModal(modal) {
+    if (!modal) return;
+    modal.classList.remove('show');
+    document.body.style.overflow = 'auto';
+}
+
+function resetDisposeBatchModal() {
+    const form = document.getElementById('disposeBatchForm');
+    if (form) {
+        form.reset();
+    }
+    const batchIdInput = document.getElementById('disposeBatchId');
+    const batchNameInput = document.getElementById('disposeBatchName');
+    if (batchIdInput) batchIdInput.value = '';
+    if (batchNameInput) batchNameInput.value = '';
+}
+
+function closeDisposeBatchModal() {
+    resetDisposeBatchModal();
+    closeModal(document.getElementById('disposeBatchModal'));
+}
+
 function showToast(message, type = 'info', duration = 3000) {
     const container = document.getElementById('toastContainer');
     if (!container) return;
@@ -325,16 +353,15 @@ function renderBatchAttentionTable(rows) {
     if (!container) return;
 
     if (!rows.length) {
-        container.innerHTML = '<p class="empty" style="padding: 14px;">No expired or partial batches match the selected filters.</p>';
+        container.innerHTML = '<p class="empty" style="padding: 14px;">No expired batches match the selected filters.</p>';
         return;
     }
 
     const rowsHtml = rows.map(row => {
         const expiryText = row.expiry_date ? new Date(row.expiry_date).toLocaleDateString() : 'Unknown';
         const quantityText = `${row.quantity} ${row.unit || 'units'}`;
-        let statusText = 'Partial';
-        if (row.status === 'expired') statusText = 'Expired';
-        if (row.status === 'expired_partial') statusText = 'Expired + Partial';
+        const statusText = 'Expired';
+        const isExpired = true;
 
         const packState = row.current_loose_base_units > 0
             ? `${row.current_full_pack_count || 0} full packs + ${row.current_loose_base_units} loose ${row.unit || 'units'}`
@@ -350,6 +377,7 @@ function renderBatchAttentionTable(rows) {
                 <td>${escapeHtml(row.location || '-')}</td>
                 <td>${escapeHtml(expiryText)}</td>
                 <td>${escapeHtml(statusText)}</td>
+                <td>${isExpired ? `<button type="button" class="btn btn-danger btn-small" onclick="disposeBatchFromReport(${row.batch_id}, '${String(row.batch_number || '').replace(/'/g, "\\'")}')">Dispose Expired Batch</button>` : '-'}</td>
             </tr>
         `;
     }).join('');
@@ -366,6 +394,7 @@ function renderBatchAttentionTable(rows) {
                     <th>Location</th>
                     <th>Expiry</th>
                     <th>Status</th>
+                    <th>Action</th>
                 </tr>
             </thead>
             <tbody>${rowsHtml}</tbody>
@@ -373,6 +402,54 @@ function renderBatchAttentionTable(rows) {
     `;
 }
 
+function disposeBatchFromReport(batchId, batchNumber) {
+    const modal = document.getElementById('disposeBatchModal');
+    const batchIdInput = document.getElementById('disposeBatchId');
+    const batchNameInput = document.getElementById('disposeBatchName');
+    const notesInput = document.getElementById('disposeBatchNotes');
+
+    if (!modal || !batchIdInput || !batchNameInput || !notesInput) {
+        showToast('Dispose batch modal is unavailable.', 'error');
+        return;
+    }
+
+    batchIdInput.value = String(batchId);
+    batchNameInput.value = batchNumber;
+    notesInput.value = '';
+    openModal(modal);
+}
+
+async function handleDisposeBatch(e) {
+    e.preventDefault();
+
+    const batchId = parseInt(document.getElementById('disposeBatchId')?.value || '', 10);
+    const notes = document.getElementById('disposeBatchNotes')?.value.trim() || '';
+
+    if (!batchId) {
+        showToast('Batch disposal context is unavailable.', 'error');
+        return;
+    }
+
+    try {
+        const response = await apiCall(`/batches/${batchId}/dispose`, {
+            method: 'POST',
+            body: JSON.stringify({ notes: notes || null })
+        });
+
+        if (!response.ok) {
+            const error = await response.json();
+            throw new Error(error.detail || 'Failed to dispose batch');
+        }
+
+        closeDisposeBatchModal();
+        await loadActiveReport();
+        showToast('Expired batch marked as disposed.', 'success');
+    } catch (error) {
+        console.error('Error disposing batch from report:', error);
+        showToast('Failed to dispose batch: ' + error.message, 'error');
+    }
+}
+
 function applyCurrentFilters() {
     const userFilter = document.getElementById('reportUserFilter');
     const drugFilter = document.getElementById('reportDrugFilter');
@@ -436,7 +513,7 @@ function applyCurrentFilters() {
         const reportName = activeReportType === 'dispensing'
             ? 'dispensing records'
             : activeReportType === 'batch_attention'
-                ? 'expired/partial batches'
+                ? 'expired batches'
                 : 'audit events';
         reportsSummary.textContent = `Showing ${filteredRows.length} of ${sourceRows.length} ${reportName}`;
     }
@@ -461,8 +538,8 @@ function updateReportHeading() {
         searchInput.placeholder = 'Search user, drug, animal, notes, batch allocation...';
         if (userFilter) userFilter.style.display = '';
     } else if (activeReportType === 'batch_attention') {
-        heading.textContent = 'Expired / Partial Batches';
-        searchInput.placeholder = 'Search drug, batch, location, status...';
+        heading.textContent = 'Expired Batches';
+        searchInput.placeholder = 'Search drug, batch, location...';
         if (userFilter) userFilter.style.display = 'none';
     } else {
         heading.textContent = 'Audit Trail (Raw)';
@@ -511,7 +588,7 @@ async function loadActiveReport() {
         const loadingText = activeReportType === 'dispensing'
             ? 'Loading dispensing history...'
             : activeReportType === 'batch_attention'
-                ? 'Loading expired / partial batches...'
+                ? 'Loading expired batches...'
                 : 'Loading audit trail...';
         container.innerHTML = `<p class="loading" style="padding: 14px;">${loadingText}</p>`;
     }
@@ -581,6 +658,9 @@ function setupEventListeners() {
     const backBtn = document.getElementById('backToInventoryBtn');
     const logoutBtn = document.getElementById('reportsLogoutBtn');
     const goToLoginBtn = document.getElementById('goToLoginBtn');
+    const disposeBatchForm = document.getElementById('disposeBatchForm');
+    const cancelDisposeBatchBtn = document.getElementById('cancelDisposeBatchBtn');
+    const closeButtons = document.querySelectorAll('.close');
 
     const userFilter = document.getElementById('reportUserFilter');
     const drugFilter = document.getElementById('reportDrugFilter');
@@ -635,6 +715,28 @@ function setupEventListeners() {
     if (goToLoginBtn) goToLoginBtn.addEventListener('click', () => {
         window.location.href = 'index.html';
     });
+
+    if (disposeBatchForm) disposeBatchForm.addEventListener('submit', handleDisposeBatch);
+    if (cancelDisposeBatchBtn) cancelDisposeBatchBtn.addEventListener('click', closeDisposeBatchModal);
+
+    closeButtons.forEach(btn => btn.addEventListener('click', (e) => {
+        const modal = e.target.closest('.modal');
+        if (modal?.id === 'disposeBatchModal') {
+            closeDisposeBatchModal();
+            return;
+        }
+        closeModal(modal);
+    }));
+
+    window.addEventListener('click', (e) => {
+        if (e.target.classList.contains('modal')) {
+            if (e.target.id === 'disposeBatchModal') {
+                closeDisposeBatchModal();
+                return;
+            }
+            closeModal(e.target);
+        }
+    });
 }
 
 async function initializeReportsPage() {