modyfikacja funckji zaznaczanie wszystkiego

static/js/select_all_table.js

@@ -0,0 +1,35 @@
+document.addEventListener('DOMContentLoaded', () => {
+    const checkboxes = document.querySelectorAll('.list-checkbox');
+    const totalEl = document.getElementById('listsTotal');
+    const selectAllBtn = document.getElementById('selectAllBtn');
+    const deselectAllBtn = document.getElementById('deselectAllBtn');
+
+    function updateTotal() {
+        let total = 0;
+        checkboxes.forEach(cb => {
+            const row = cb.closest('tr');
+            if (cb.checked && row.style.display !== 'none') {
+                total += parseFloat(cb.dataset.amount);
+            }
+        });
+        totalEl.textContent = total.toFixed(2) + ' PLN';
+    }
+
+    selectAllBtn.addEventListener('click', () => {
+        checkboxes.forEach(cb => cb.checked = true);
+        updateTotal();
+        selectAllBtn.style.display = 'none';
+        deselectAllBtn.style.display = 'inline-block';
+    });
+
+    deselectAllBtn.addEventListener('click', () => {
+        checkboxes.forEach(cb => cb.checked = false);
+        updateTotal();
+        deselectAllBtn.style.display = 'none';
+        selectAllBtn.style.display = 'inline-block';
+    });
+
+    checkboxes.forEach(cb => {
+        cb.addEventListener('change', updateTotal);
+    });
+});