F: Add JSON export option

rsconcept/frontend/src/components/control/export-dropdown.tsx

@@ -0,0 +1,83 @@
+'use client';
+
+import { toast } from 'react-toastify';
+import fileDownload from 'js-file-download';
+
+import { infoMsg } from '@/utils/labels';
+import { convertToCSV, convertToJSON } from '@/utils/utils';
+
+import { Dropdown, DropdownButton, useDropdown } from '../dropdown';
+import { IconCSV, IconDownload, IconJSON } from '../icons';
+import { cn } from '../utils';
+
+import { MiniButton } from './mini-button';
+
+interface ExportDropdownProps<T extends object = object> {
+  /** Disabled state */
+  disabled?: boolean;
+
+  /** Data to export (can be readonly or mutable array of objects) */
+  data: readonly Readonly<T>[];
+
+  /** Optional filename (without extension) */
+
+  filename?: string;
+  /** Optional button className */
+
+  className?: string;
+}
+
+export function ExportDropdown<T extends object = object>({
+  disabled,
+  data,
+  filename = 'export',
+  className
+}: ExportDropdownProps<T>) {
+  const { ref, isOpen, toggle, handleBlur, hide } = useDropdown();
+
+  function handleExport(format: 'csv' | 'json') {
+    if (!data || data.length === 0) {
+      toast.error(infoMsg.noDataToExport);
+      return;
+    }
+    try {
+      if (format === 'csv') {
+        const blob = convertToCSV(data);
+        fileDownload(blob, `${filename}.csv`, 'text/csv;charset=utf-8;');
+      } else {
+        const blob = convertToJSON(data);
+        fileDownload(blob, `${filename}.json`, 'application/json;charset=utf-8;');
+      }
+    } catch (error) {
+      console.error(error);
+    }
+    hide();
+  }
+
+  return (
+    <div className={cn('relative inline-block', className)} tabIndex={0} onBlur={handleBlur}>
+      <MiniButton
+        title='Экспортировать данные'
+        hideTitle={isOpen}
+        className='text-muted-foreground enabled:hover:text-primary'
+        icon={<IconDownload size='1.25rem' />}
+        onClick={toggle}
+        disabled={disabled}
+      />
+      <Dropdown ref={ref} isOpen={isOpen} stretchLeft margin='mt-1' className='z-tooltip'>
+        <DropdownButton
+          icon={<IconCSV size='1rem' className='mr-1 icon-green' />}
+          text='CSV'
+          onClick={() => handleExport('csv')}
+          className='w-full justify-start'
+        />
+        <DropdownButton
+          icon={<IconJSON size='1rem' className='mr-1 icon-green' />}
+          text='JSON'
+          onClick={() => handleExport('json')}
+          className='w-full justify-start'
+        />
+      </Dropdown>
+    </div>
+  );
+}

rsconcept/frontend/src/components/icons.tsx

@@ -61,6 +61,7 @@ export { BiLastPage       as IconPageLast }       from 'react-icons/bi';
 export { TbCalendarPlus   as IconDateCreate }     from 'react-icons/tb';
 export { TbCalendarRepeat as IconDateUpdate }     from 'react-icons/tb';
 export { PiFileCsv        as IconCSV }            from 'react-icons/pi';
+export { BsFiletypeJson   as IconJSON }           from 'react-icons/bs';
 
 // ==== User status =======
 export { LuCircleUserRound as IconUser }          from 'react-icons/lu';

rsconcept/frontend/src/features/library/pages/library-page/library-page.tsx

@@ -1,13 +1,7 @@
 'use client';
 
-import { toast } from 'react-toastify';
-import fileDownload from 'js-file-download';
-
-import { MiniButton } from '@/components/control';
-import { IconCSV } from '@/components/icons';
+import { ExportDropdown } from '@/components/control/export-dropdown';
 import { useDialogsStore } from '@/stores/dialogs';
-import { infoMsg } from '@/utils/labels';
-import { convertToCSV } from '@/utils/utils';
 
 import { useApplyLibraryFilter } from '../../backend/use-apply-library-filter';
 import { useLibrarySuspense } from '../../backend/use-library';
@@ -38,28 +32,14 @@ export function LibraryPage() {
     }).then(() => setLocation(newLocation));
   }
 
-  function handleDownloadCSV() {
-    if (filtered.length === 0) {
-      toast.error(infoMsg.noDataToExport);
-      return;
-    }
-    const blob = convertToCSV(filtered);
-    try {
-      fileDownload(blob, 'library.csv', 'text/csv;charset=utf-8;');
-    } catch (error) {
-      console.error(error);
-    }
-  }
-
   return (
     <>
       <ToolbarSearch className='top-0 h-9' total={libraryItems.length} filtered={filtered.length} />
       <div className='relative flex'>
-        <MiniButton
-          title='Выгрузить в формате CSV'
+        <ExportDropdown
+          data={filtered}
+          filename='library'
           className='absolute z-tooltip -top-8 right-6 hidden sm:block'
-          icon={<IconCSV size='1.25rem' className='text-muted-foreground hover:text-constructive' />}
-          onClick={handleDownloadCSV}
         />
 
         <ViewSideLocation

rsconcept/frontend/src/features/rsform/pages/rsform-page/editor-rslist/editor-rslist.tsx

@@ -1,16 +1,12 @@
 'use client';
 
 import { useState } from 'react';
-import { toast } from 'react-toastify';
-import fileDownload from 'js-file-download';
 
-import { MiniButton } from '@/components/control';
+import { ExportDropdown } from '@/components/control/export-dropdown';
 import { type RowSelectionState } from '@/components/data-table';
-import { IconCSV } from '@/components/icons';
 import { SearchBar } from '@/components/input';
 import { useFitHeight } from '@/stores/app-layout';
-import { infoMsg } from '@/utils/labels';
-import { convertToCSV, withPreventDefault } from '@/utils/utils';
+import { withPreventDefault } from '@/utils/utils';
 
 import { CstType } from '../../../backend/types';
 import { useMutatingRSForm } from '../../../backend/use-mutating-rsform';
@@ -47,19 +43,6 @@ export function EditorRSList() {
     filtered.map((cst, index) => [String(index), selected.includes(cst.id)])
   );
 
-  function handleDownloadCSV() {
-    if (filtered.length === 0) {
-      toast.error(infoMsg.noDataToExport);
-      return;
-    }
-    const blob = convertToCSV(filtered);
-    try {
-      fileDownload(blob, `${schema.alias}.csv`, 'text/csv;charset=utf-8;');
-    } catch (error) {
-      console.error(error);
-    }
-  }
-
   function handleRowSelection(updater: React.SetStateAction<RowSelectionState>) {
     const newRowSelection = typeof updater === 'function' ? updater(rowSelection) : updater;
     const newSelection: number[] = [];
@@ -140,11 +123,11 @@ export function EditorRSList() {
         />
       </div>
 
-      <MiniButton
+      <ExportDropdown
+        data={filtered}
+        filename={schema.alias}
         className='absolute z-pop right-4 hidden sm:block top-18'
-        title='Выгрузить в формате CSV'
-        icon={<IconCSV size='1.25rem' className='text-constructive' />}
-        onClick={handleDownloadCSV}
+        disabled={filtered.length === 0}
       />
 
       <TableRSList

rsconcept/frontend/src/utils/utils.ts

@@ -156,6 +156,14 @@ export function convertToCSV(targetObj: readonly object[]): Blob {
   return new Blob([csvContent], { type: 'text/csv;charset=utf-8;' });
 }
 
+/**
+ * Convert object or array to JSON Blob.
+ */
+export function convertToJSON(targetObj: unknown): Blob {
+  const jsonString = JSON.stringify(targetObj, null, 2);
+  return new Blob([jsonString], { type: 'application/json;charset=utf-8;' });
+}
+
 /**
  * Generates a QR code for the current page.
  */