feat: implement bulk account deletion and enhance account management with folder organization and drag-and-drop functionality

components/folders/draggable-folder-item.tsx

@@ -0,0 +1,160 @@
+"use client";
+
+import { useSortable } from "@dnd-kit/sortable";
+import { CSS } from "@dnd-kit/utilities";
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import {
+  MoreVertical,
+  Pencil,
+  Trash2,
+  Folder,
+  FolderOpen,
+  ChevronRight,
+  ChevronDown,
+  GripVertical,
+} from "lucide-react";
+import { cn } from "@/lib/utils";
+import type { Folder as FolderType, Account } from "@/lib/types";
+
+interface DraggableFolderItemProps {
+  folder: FolderType;
+  accounts?: Account[];
+  allFolders?: FolderType[];
+  level: number;
+  isExpanded: boolean;
+  onToggleExpand: () => void;
+  onEdit: (folder: FolderType) => void;
+  onDelete: (folderId: string) => void;
+  onEditAccount?: (account: Account) => void;
+  formatCurrency: (amount: number) => string;
+  folderAccounts: Account[];
+  childFolders: FolderType[];
+  folderTotal: number;
+}
+
+export function DraggableFolderItem({
+  folder,
+  level,
+  isExpanded,
+  onToggleExpand,
+  onEdit,
+  onDelete,
+  formatCurrency,
+  folderAccounts,
+  childFolders,
+  folderTotal,
+}: DraggableFolderItemProps) {
+  const {
+    attributes,
+    listeners,
+    setNodeRef,
+    transform,
+    transition,
+    isDragging,
+  } = useSortable({
+    id: `folder-${folder.id}`,
+    data: {
+      type: "folder",
+      folder,
+    },
+  });
+
+  const style = {
+    transform: CSS.Transform.toString(transform),
+    transition,
+    opacity: isDragging ? 0.5 : 1,
+  };
+
+  return (
+    <div ref={setNodeRef} style={style}>
+      <div
+        className={cn(
+          "flex items-center gap-2 p-2 rounded-lg hover:bg-muted/50 group",
+          level > 0 && "ml-6",
+          isDragging && "bg-muted/80"
+        )}
+      >
+        <button
+          {...attributes}
+          {...listeners}
+          className="p-1 hover:bg-muted rounded cursor-grab active:cursor-grabbing"
+        >
+          <GripVertical className="w-4 h-4 text-muted-foreground" />
+        </button>
+        <button
+          onClick={onToggleExpand}
+          className="p-1 hover:bg-muted rounded"
+          disabled={folderAccounts.length === 0 && childFolders.length === 0}
+        >
+          {folderAccounts.length > 0 || childFolders.length > 0 ? (
+            isExpanded ? (
+              <ChevronDown className="w-4 h-4 text-muted-foreground" />
+            ) : (
+              <ChevronRight className="w-4 h-4 text-muted-foreground" />
+            )
+          ) : (
+            <div className="w-4 h-4" />
+          )}
+        </button>
+
+        <div
+          className="w-6 h-6 rounded flex items-center justify-center"
+          style={{ backgroundColor: `${folder.color}20` }}
+        >
+          {isExpanded ? (
+            <FolderOpen className="w-4 h-4" style={{ color: folder.color }} />
+          ) : (
+            <Folder className="w-4 h-4" style={{ color: folder.color }} />
+          )}
+        </div>
+
+        <span className="flex-1 font-medium text-sm">{folder.name}</span>
+
+        {folderAccounts.length > 0 && (
+          <span
+            className={cn(
+              "text-sm font-semibold tabular-nums",
+              folderTotal >= 0 ? "text-emerald-600" : "text-red-600"
+            )}
+          >
+            {formatCurrency(folderTotal)}
+          </span>
+        )}
+
+        <DropdownMenu>
+          <DropdownMenuTrigger asChild>
+            <Button
+              variant="ghost"
+              size="icon"
+              className="h-7 w-7 opacity-0 group-hover:opacity-100"
+            >
+              <MoreVertical className="w-4 h-4" />
+            </Button>
+          </DropdownMenuTrigger>
+          <DropdownMenuContent align="end">
+            <DropdownMenuItem onClick={() => onEdit(folder)}>
+              <Pencil className="w-4 h-4 mr-2" />
+              Modifier
+            </DropdownMenuItem>
+            {folder.id !== "folder-root" && (
+              <DropdownMenuItem
+                onClick={() => onDelete(folder.id)}
+                className="text-red-600"
+              >
+                <Trash2 className="w-4 h-4 mr-2" />
+                Supprimer
+              </DropdownMenuItem>
+            )}
+          </DropdownMenuContent>
+        </DropdownMenu>
+      </div>
+    </div>
+  );
+}
+