Manager Dashboard: product reorder/bulk actions, preference sub-choices UI

ProductsPage:
- Drag-free reorder via ▲/▼ buttons (calls PUT /products/reorder)
- Sort toolbar: custom order / name / price
- Show/hide inactive products toggle
- Multi-select mode with bulk available/unavailable/hard-delete actions
- Preference sets: default_choice_index picker, shared_subset editor
  (set-level sub-choices shared across choices, with disables_subset per choice)
- Inline sub-choice editor for both checkbox options and preference choices
  (SubChoiceRows component with reorder, default toggle, price stepper)
- Hard delete + soft deactivate distinction in the delete confirmation dialog
- PriceInput component with −/+ steppers (0.10 increments)

TablesPage:
- Table groups gain prefix and color fields in create/edit form
- Color swatch picker for group color

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

manager_dashboard/src/pages/TablesPage.jsx

@@ -4,14 +4,40 @@ import toast from 'react-hot-toast'
 import client from '../api/client'
 import ConfirmModal from '../components/ConfirmModal'
 
+const ZONE_COLORS = ['#6366f1','#0ea5e9','#10b981','#f59e0b','#ef4444','#ec4899','#8b5cf6','#14b8a6','#f97316','#64748b']
+
+function ZoneColorPicker({ value, onChange }) {
+  return (
+    <div className="flex flex-wrap gap-2 mt-1">
+      <button
+        type="button"
+        onClick={() => onChange(null)}
+        className="w-7 h-7 rounded-full border-2 bg-gray-200 transition-all"
+        style={{ borderColor: !value ? '#000' : 'transparent' }}
+        title="Χωρίς χρώμα"
+      />
+      {ZONE_COLORS.map(c => (
+        <button
+          key={c}
+          type="button"
+          onClick={() => onChange(c)}
+          className="w-7 h-7 rounded-full border-2 transition-all"
+          style={{ background: c, borderColor: value === c ? '#000' : 'transparent' }}
+        />
+      ))}
+    </div>
+  )
+}
+
 export default function TablesPage() {
   const qc = useQueryClient()
   const [addModal, setAddModal] = useState(false)
   const [editModal, setEditModal] = useState(null)
-  const [batchModal, setBatchModal] = useState(null)   // group id or null
+  const [batchModal, setBatchModal] = useState(null)   // group object or null
   const [groupModal, setGroupModal] = useState(null)   // null | {} | group object
-  const [confirmDelete, setConfirmDelete] = useState(null) // { id, hard }
+  const [confirmDelete, setConfirmDelete] = useState(null)
   const [showInactive, setShowInactive] = useState(false)
+  const [activeTab, setActiveTab] = useState('all')   // 'all' | group.id
 
   const { data: tables = [], isLoading } = useQuery({
     queryKey: ['tables-all', showInactive],
@@ -29,15 +55,6 @@ export default function TablesPage() {
   }
   const invalidateGroups = () => qc.invalidateQueries({ queryKey: ['table-groups'] })
 
-  // Next auto-increment number within a group (or global)
-  function nextNumber(groupId) {
-    const relevant = groupId
-      ? tables.filter(t => t.group_id === groupId)
-      : tables
-    if (relevant.length === 0) return 1
-    return Math.max(...relevant.map(t => t.number)) + 1
-  }
-
   const createTable = useMutation({
     mutationFn: (body) => client.post('/api/tables/', body),
     onSuccess: () => { toast.success('Τραπέζι δημιουργήθηκε'); setAddModal(false); invalidate() },
@@ -70,81 +87,125 @@ export default function TablesPage() {
     mutationFn: (body) => groupModal?.id
       ? client.put(`/api/tables/groups/${groupModal.id}`, body)
       : client.post('/api/tables/groups', body),
-    onSuccess: () => { toast.success('Γκρουπ αποθηκεύτηκε'); setGroupModal(null); invalidateGroups(); invalidate() },
+    onSuccess: () => { toast.success('Ζώνη αποθηκεύτηκε'); setGroupModal(null); invalidateGroups(); invalidate() },
     onError: (err) => toast.error(err.response?.data?.detail || 'Σφάλμα'),
   })
 
   const deleteGroup = useMutation({
     mutationFn: (id) => client.delete(`/api/tables/groups/${id}`),
-    onSuccess: () => { toast.success('Γκρουπ διαγράφηκε'); setGroupModal(null); invalidateGroups(); invalidate() },
+    onSuccess: () => { toast.success('Ζώνη διαγράφηκε'); setGroupModal(null); invalidateGroups(); invalidate() },
     onError: () => toast.error('Σφάλμα'),
   })
 
-  // Group tables by group
+  // Filter tables for the active tab
-  const grouped = [
+  const visibleTables = activeTab === 'all'
-    { group: null, tables: tables.filter(t => !t.group_id) },
+    ? tables
-    ...groups.map(g => ({ group: g, tables: tables.filter(t => t.group_id === g.id) })),
+    : activeTab === 'ungrouped'
-  ].filter(section => section.tables.length > 0 || section.group)
+      ? tables.filter(t => !t.group_id)
+      : tables.filter(t => t.group_id === activeTab)
 
   if (isLoading) return <div className="flex items-center justify-center h-64 text-gray-400">Φόρτωση…</div>
 
   return (
-    <div className="space-y-6 max-w-3xl">
+    <div className="space-y-4">
+      {/* Header */}
       <div className="flex items-center justify-between flex-wrap gap-3">
         <h1 className="text-xl font-bold text-gray-800">Τραπέζια</h1>
-        <div className="flex gap-2 flex-wrap">
+        <div className="flex gap-2 flex-wrap items-center">
           <label className="flex items-center gap-2 text-sm text-gray-600 cursor-pointer">
             <input type="checkbox" checked={showInactive} onChange={e => setShowInactive(e.target.checked)} className="accent-primary-700" />
             Εμφάνιση ανενεργών
           </label>
-          <button onClick={() => setGroupModal({})} className="btn btn-secondary text-sm">+ Νέο γκρουπ</button>
+          <button onClick={() => setGroupModal({})} className="btn btn-secondary text-sm">+ Νέα ζώνη</button>
-          <button onClick={() => setAddModal(true)} className="btn btn-primary">+ Νέο τραπέζι</button>
+          <button onClick={() => setAddModal(true)} className="btn btn-primary text-sm">+ Νέο τραπέζι</button>
         </div>
       </div>
 
-      {grouped.map(({ group, tables: gt }) => (
+      {/* Zone tabs */}
-        <div key={group?.id ?? 'ungrouped'}>
+      <div className="flex gap-1 flex-wrap border-b border-gray-200 pb-0">
-          {group && (
+        {[
-            <div className="flex items-center gap-3 mb-2">
+          { id: 'all', label: 'Όλα', color: null },
-              <h2 className="font-semibold text-gray-700">{group.name}</h2>
+          ...groups.map(g => ({ id: g.id, label: g.prefix ? `${g.prefix} – ${g.name}` : g.name, color: g.color, group: g })),
-              <button onClick={() => setGroupModal(group)} className="text-xs text-gray-400 hover:text-gray-600">✏️</button>
+          ...(tables.some(t => !t.group_id) ? [{ id: 'ungrouped', label: 'Χωρίς ζώνη', color: null }] : []),
-              <button onClick={() => setBatchModal(group.id)} className="btn btn-secondary text-xs px-2 py-1 min-h-0 h-7">+ Μαζική προσθήκη</button>
+        ].map(tab => (
+          <button
+            key={tab.id}
+            onClick={() => setActiveTab(tab.id)}
+            className={`flex items-center gap-1.5 px-4 py-2 text-sm font-medium rounded-t-lg transition-colors ${
+              activeTab === tab.id
+                ? 'bg-white border border-b-white border-gray-200 -mb-px text-primary-700'
+                : 'text-gray-500 hover:text-gray-700 hover:bg-gray-50'
+            }`}
+          >
+            {tab.color && <span className="w-2.5 h-2.5 rounded-full shrink-0" style={{ background: tab.color }} />}
+            {tab.label}
+            <span className="ml-0.5 text-xs text-gray-400">
+              ({tab.id === 'all' ? tables.length : tab.id === 'ungrouped' ? tables.filter(t => !t.group_id).length : tables.filter(t => t.group_id === tab.id).length})
+            </span>
+          </button>
+        ))}
       </div>
-          )}
-          {!group && gt.length > 0 && <h2 className="font-semibold text-gray-500 mb-2 text-sm">Χωρίς γκρουπ</h2>}
 
+      {/* Zone header (when viewing a specific zone) */}
+      {activeTab !== 'all' && activeTab !== 'ungrouped' && (() => {
+        const g = groups.find(g => g.id === activeTab)
+        if (!g) return null
+        return (
+          <div className="flex items-center gap-3">
+            <div>
+              <span className="font-semibold text-gray-700">{g.name}</span>
+              {g.prefix && <span className="ml-2 text-xs bg-gray-100 text-gray-500 px-2 py-0.5 rounded font-mono">{g.prefix}</span>}
+            </div>
+            <button onClick={() => setGroupModal(g)} className="text-xs text-gray-400 hover:text-gray-600 underline">Επεξεργασία ζώνης</button>
+            <button onClick={() => setBatchModal(g)} className="btn btn-secondary text-xs px-3 py-1 min-h-0 h-7">+ Μαζική προσθήκη</button>
+          </div>
+        )
+      })()}
+
+      {/* Tables list */}
       <div className="card divide-y divide-gray-100">
-            {gt.length === 0 && (
+        {visibleTables.length === 0 && (
-              <p className="px-4 py-4 text-sm text-gray-400 text-center">Δεν υπάρχουν τραπέζια σε αυτό το γκρουπ.</p>
+          <p className="px-4 py-8 text-sm text-gray-400 text-center">
+            {showInactive ? 'Δεν υπάρχουν τραπέζια.' : 'Δεν υπάρχουν ενεργά τραπέζια.'}
+          </p>
         )}
-            {gt.map(t => (
+        {visibleTables.map((t, idx) => (
-              <div key={t.id} className={`flex items-center gap-4 px-4 py-3 ${!t.is_active ? 'opacity-40' : ''}`}>
+          <div key={t.id} className={`flex items-center gap-4 px-4 py-3 ${!t.is_active ? 'opacity-50 bg-gray-50' : ''}`}>
-                <span className="text-2xl font-extrabold text-gray-800 w-10">{t.number}</span>
+            <span className="text-xs text-gray-400 font-mono w-6 text-right">{idx + 1}</span>
-                <p className="flex-1 text-sm text-gray-600">{t.label || '—'}</p>
+            <p className="flex-1 font-medium text-gray-800">{t.label || `Τραπέζι ${t.number}`}</p>
-                {!t.is_active && <span className="text-xs text-red-400 font-medium">Ανενεργό</span>}
+            {t.group && (
-                <button onClick={() => setEditModal(t)} className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-9">Επεξεργασία</button>
+              <span className="text-xs bg-gray-100 text-gray-500 px-2 py-0.5 rounded hidden sm:inline">
+                {t.group.prefix ? `${t.group.prefix}` : t.group.name}
+              </span>
+            )}
+            {!t.is_active && <span className="text-xs text-amber-600 font-medium">Ανενεργό</span>}
+            <button onClick={() => setEditModal(t)} className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-8">Επεξεργασία</button>
             {t.is_active
-                  ? <button onClick={() => setConfirmDelete({ id: t.id, hard: false })} className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-9 text-amber-600 hover:bg-amber-50">Απενεργ.</button>
+              ? <button
-                  : <button onClick={() => updateTable.mutate({ id: t.id, is_active: true })} className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-9 text-green-600 hover:bg-green-50">Ενεργοπ.</button>
+                  onClick={() => !t.has_active_order && setConfirmDelete({ id: t.id, hard: false })}
+                  disabled={t.has_active_order}
+                  title={t.has_active_order ? 'Υπάρχει ενεργή παραγγελία' : undefined}
+                  className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-8 text-amber-600 hover:bg-amber-50 disabled:opacity-40 disabled:cursor-not-allowed"
+                >Απενεργ.</button>
+              : <button onClick={() => updateTable.mutate({ id: t.id, is_active: true })} className="btn btn-secondary text-sm px-3 py-1.5 min-h-0 h-8 text-green-600 hover:bg-green-50">Ενεργοπ.</button>
             }
-                <button onClick={() => setConfirmDelete({ id: t.id, hard: true })} className="btn btn-danger text-sm px-3 py-1.5 min-h-0 h-9">Διαγραφή</button>
+            <button
+              onClick={() => !t.has_active_order && setConfirmDelete({ id: t.id, hard: true })}
+              disabled={t.has_active_order}
+              title={t.has_active_order ? 'Υπάρχει ενεργή παραγγελία' : undefined}
+              className="btn btn-danger text-sm px-3 py-1.5 min-h-0 h-8 disabled:opacity-40 disabled:cursor-not-allowed"
+            >Διαγραφή</button>
           </div>
         ))}
       </div>
-        </div>
-      ))}
-
-      {tables.length === 0 && (
-        <p className="text-center text-gray-400 py-12">Δεν υπάρχουν τραπέζια. Προσθέστε ένα.</p>
-      )}
 
       {/* Add single table */}
       {addModal && (
         <TableModal
           title="Νέο τραπέζι"
-          initial={{ number: nextNumber(null), label: '', group_id: '' }}
+          initial={{ label: '', group_id: activeTab !== 'all' && activeTab !== 'ungrouped' ? activeTab : '' }}
           groups={groups}
-          onSave={(f) => createTable.mutate({ number: Number(f.number), label: f.label || null, group_id: f.group_id ? Number(f.group_id) : null })}
+          onSave={(f) => createTable.mutate({ label: f.label || null, group_id: f.group_id ? Number(f.group_id) : null })}
           onClose={() => setAddModal(false)}
         />
       )}
@@ -153,9 +214,9 @@ export default function TablesPage() {
       {editModal && (
         <TableModal
           title="Επεξεργασία τραπεζιού"
-          initial={{ number: editModal.number, label: editModal.label || '', group_id: editModal.group_id || '' }}
+          initial={{ label: editModal.label || '', group_id: editModal.group_id || '' }}
           groups={groups}
-          onSave={(f) => updateTable.mutate({ id: editModal.id, number: Number(f.number), label: f.label || null, group_id: f.group_id ? Number(f.group_id) : null })}
+          onSave={(f) => updateTable.mutate({ id: editModal.id, label: f.label || null, group_id: f.group_id ? Number(f.group_id) : null })}
           onClose={() => setEditModal(null)}
         />
       )}
@@ -163,18 +224,17 @@ export default function TablesPage() {
       {/* Batch add */}
       {batchModal !== null && (
         <BatchModal
-          groupId={batchModal}
+          group={batchModal}
-          startNumber={nextNumber(batchModal)}
           onSave={(body) => batchCreate.mutate(body)}
           onClose={() => setBatchModal(null)}
         />
       )}
 
-      {/* Group form */}
+      {/* Group/Zone form */}
       {groupModal !== null && (
         <GroupModal
           group={groupModal}
-          onSave={(name) => saveGroup.mutate({ name })}
+          onSave={(data) => saveGroup.mutate(data)}
           onDelete={groupModal.id ? () => deleteGroup.mutate(groupModal.id) : null}
           onClose={() => setGroupModal(null)}
         />
@@ -204,53 +264,63 @@ function TableModal({ title, initial, groups, onSave, onClose }) {
       <div className="bg-white rounded-2xl shadow-xl w-full max-w-sm p-6 space-y-4">
         <h2 className="font-bold text-gray-800">{title}</h2>
         <div>
-          <label className="label">Αριθμός τραπεζιού *</label>
+          <label className="label">Όνομα τραπεζιού</label>
-          <input className="input" type="number" min="1" value={form.number} onChange={e => setForm(f => ({ ...f, number: e.target.value }))} autoFocus />
+          <input
+            className="input"
+            placeholder="π.χ. BS-TBL-1 ή Βεράντα 3"
+            value={form.label}
+            onChange={e => setForm(f => ({ ...f, label: e.target.value }))}
+            autoFocus
+          />
+          <p className="text-xs text-gray-400 mt-1">Αφήστε κενό για αυτόματη αρίθμηση.</p>
         </div>
         <div>
-          <label className="label">Ετικέτα</label>
+          <label className="label">Ζώνη</label>
-          <input className="input" placeholder="π.χ. Βεράντα 1" value={form.label} onChange={e => setForm(f => ({ ...f, label: e.target.value }))} />
-        </div>
-        <div>
-          <label className="label">Γκρουπ</label>
           <select className="input" value={form.group_id} onChange={e => setForm(f => ({ ...f, group_id: e.target.value }))}>
-            <option value="">— Χωρίς γκρουπ —</option>
+            <option value="">— Χωρίς ζώνη —</option>
-            {groups.map(g => <option key={g.id} value={g.id}>{g.name}</option>)}
+            {groups.map(g => <option key={g.id} value={g.id}>{g.name}{g.prefix ? ` (${g.prefix})` : ''}</option>)}
           </select>
         </div>
         <div className="flex gap-3">
           <button onClick={onClose} className="flex-1 btn btn-secondary">Ακύρωση</button>
-          <button onClick={() => onSave(form)} disabled={!form.number} className="flex-1 btn btn-primary">Αποθήκευση</button>
+          <button onClick={() => onSave(form)} className="flex-1 btn btn-primary">Αποθήκευση</button>
         </div>
       </div>
     </div>
   )
 }
 
-function BatchModal({ groupId, startNumber, onSave, onClose }) {
+function BatchModal({ group, onSave, onClose }) {
   const [count, setCount] = useState(5)
-  const [prefix, setPrefix] = useState('')
+  const [prefix, setPrefix] = useState(group?.prefix ? `${group.prefix}-` : '')
   return (
     <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50 p-4">
       <div className="bg-white rounded-2xl shadow-xl w-full max-w-sm p-6 space-y-4">
         <h2 className="font-bold text-gray-800">Μαζική προσθήκη τραπεζιών</h2>
+        {group && <p className="text-sm text-gray-500">Ζώνη: <span className="font-medium text-gray-700">{group.name}</span></p>}
+        <div>
+          <label className="label">Πρόθεμα ονόματος</label>
+          <input
+            className="input"
+            placeholder="π.χ. BS-TBL- → BS-TBL-1, BS-TBL-2…"
+            value={prefix}
+            onChange={e => setPrefix(e.target.value)}
+            autoFocus
+          />
+          <p className="text-xs text-gray-400 mt-1">Τα ονόματα θα αριθμηθούν αυτόματα συνεχίζοντας από εκεί που σταμάτησαν.</p>
+        </div>
         <div>
           <label className="label">Πλήθος</label>
-          <input className="input" type="number" min="1" max="200" value={count} onChange={e => setCount(Number(e.target.value))} autoFocus />
+          <input className="input" type="number" min="1" max="200" value={count} onChange={e => setCount(Number(e.target.value))} />
         </div>
-        <div>
-          <label className="label">Πρόθεμα ετικέτας</label>
-          <input className="input" placeholder="π.χ. Out- → Out-1, Out-2…" value={prefix} onChange={e => setPrefix(e.target.value)} />
-        </div>
-        <p className="text-xs text-gray-400">Ξεκινά από αριθμό {startNumber}, δημιουργεί {count} τραπέζια.</p>
         <div className="flex gap-3">
           <button onClick={onClose} className="flex-1 btn btn-secondary">Ακύρωση</button>
           <button
-            onClick={() => onSave({ group_id: groupId, count, name_prefix: prefix, start_number: startNumber })}
+            onClick={() => onSave({ group_id: group?.id ?? null, count, name_prefix: prefix })}
             disabled={count < 1 || !prefix.trim()}
             className="flex-1 btn btn-primary"
           >
-            Δημιουργία
+            Δημιουργία {count > 0 && prefix.trim() ? `(${prefix.trim()}1 … ${prefix.trim()}${count})` : ''}
           </button>
         </div>
       </div>
@@ -260,18 +330,29 @@ function BatchModal({ groupId, startNumber, onSave, onClose }) {
 
 function GroupModal({ group, onSave, onDelete, onClose }) {
   const [name, setName] = useState(group.name || '')
+  const [prefix, setPrefix] = useState(group.prefix || '')
+  const [color, setColor] = useState(group.color || null)
   return (
     <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50 p-4">
-      <div className="bg-white rounded-2xl shadow-xl w-full max-w-xs p-6 space-y-4">
+      <div className="bg-white rounded-2xl shadow-xl w-full max-w-sm p-6 space-y-4">
-        <h2 className="font-bold text-gray-800">{group.id ? 'Επεξεργασία γκρουπ' : 'Νέο γκρουπ'}</h2>
+        <h2 className="font-bold text-gray-800">{group.id ? 'Επεξεργασία ζώνης' : 'Νέα ζώνη'}</h2>
         <div>
-          <label className="label">Όνομα γκρουπ</label>
+          <label className="label">Όνομα ζώνης *</label>
-          <input className="input" value={name} onChange={e => setName(e.target.value)} autoFocus />
+          <input className="input" value={name} onChange={e => setName(e.target.value)} autoFocus placeholder="π.χ. Beachside" />
+        </div>
+        <div>
+          <label className="label">Πρόθεμα (για μαζική δημιουργία)</label>
+          <input className="input font-mono" value={prefix} onChange={e => setPrefix(e.target.value)} placeholder="π.χ. BS" />
+          <p className="text-xs text-gray-400 mt-1">Χρησιμοποιείται ως προτεινόμενο πρόθεμα στη μαζική προσθήκη.</p>
+        </div>
+        <div>
+          <label className="label">Χρώμα ζώνης</label>
+          <ZoneColorPicker value={color} onChange={setColor} />
         </div>
         <div className="flex gap-3">
-          {onDelete && <button onClick={onDelete} className="btn btn-danger px-3">🗑</button>}
+          {onDelete && <button onClick={onDelete} className="btn btn-danger px-3">Διαγραφή</button>}
           <button onClick={onClose} className="flex-1 btn btn-secondary">Ακύρωση</button>
-          <button onClick={() => onSave(name)} disabled={!name.trim()} className="flex-1 btn btn-primary">Αποθήκευση</button>
+          <button onClick={() => onSave({ name, prefix: prefix || null, color: color || null })} disabled={!name.trim()} className="flex-1 btn btn-primary">Αποθήκευση</button>
         </div>
       </div>
     </div>