Implement file copy

@@ -7,15 +7,18 @@ import { FileListPopover } from "./FileListPopover";
 export type FileItemActionsProps = {
   item: FileItem;
   onMove: (id: number, to: number) => void;
+  onCopy: (id: number, to: number) => void;
   onDelete: (id: number) => void;
 };
 
 export function FileItemActions({
   item,
   onMove,
+  onCopy,
   onDelete,
 }: FileItemActionsProps) {
   const [move, setMove] = useState<boolean>(false);
+  const [copy, setCopy] = useState<boolean>(false);
 
   return (
     <div className={styles.actions}>
@@ -48,9 +51,26 @@ export function FileItemActions({
           이동
         </Button>
       </Popover>
+      <Popover
+        title="복사할 폴더를 선택하세요"
+        content={
+          <FileListPopover
+            root={item.parent}
+            onSelect={(to: number) => {
+              onCopy(item.id, to);
+              setCopy(false);
+            }}
+            onCancel={() => setCopy(false)}
+          />
+        }
+        trigger="click"
+        visible={copy}
+        onVisibleChange={setCopy}
+      >
         <Button type="link" size="small">
           복사
         </Button>
+      </Popover>
       <Popconfirm
         title="정말로 삭제하시겠습니까?"
         onConfirm={() => onDelete(item.id)}

@@ -34,6 +34,23 @@ export function FileList() {
     [api, reload]
   );
 
+  const handleCopy = useCallback(
+    async (id: number, to: number) => {
+      try {
+        const body = new URLSearchParams();
+        body.set("parent", to.toString(10));
+
+        await api.post(`/items/${id}/copy/`, { body });
+        await reload();
+
+        message.info("복사되었습니다");
+      } catch {
+        message.error("파일 복사에 실패했습니다");
+      }
+    },
+    [api, reload]
+  );
+
   const handleDelete = useCallback(
     async (id: number) => {
       try {
@@ -81,6 +98,7 @@ export function FileList() {
         rowKey="id"
         columns={getColumns({
           handleMove,
+          handleCopy,
           handleDelete,
         })}
         dataSource={list}
@@ -92,11 +110,13 @@ export function FileList() {
 
 type GetColumnsParams = {
   handleMove: (id: number, to: number) => void;
+  handleCopy: (id: number, to: number) => void;
   handleDelete: (id: number) => void;
 };
 
 function getColumns({
   handleMove,
+  handleCopy,
   handleDelete,
 }: GetColumnsParams): ColumnsType<FileItem> {
   return [
@@ -124,6 +144,7 @@ function getColumns({
           <FileItemActions
             item={item}
             onMove={handleMove}
+            onCopy={handleCopy}
             onDelete={handleDelete}
           />
         ),