import { ArrowRightOutlined, DownOutlined, MoreOutlined, RightOutlined } from '@ant-design/icons';
import { Button, Dropdown, Space, message } from 'antd';
import type { ColumnsType, TableProps } from 'antd/es/table';
import { memo, useCallback, useMemo } from 'react';
import { useNavigate, useParams, useSearchParams } from 'react-router-dom';
import { ColumnSettings, DataTable, type TableConfig, isGroup, useFilteredRows, useVisibleColumns } from '../../components/GenericTable';
import { useTableFilters } from '../../components/GenericTable/useTableFilters';
import { useAppSelector } from '../../store/store';
import type { ConsRow } from '../../types/consolidations/consolidations';
import { consConfigBase } from './config';
import { flattenCons } from './flatten';
import { groupAdjacent } from './groupAdjacent';
import { useGrouping } from './useGrouping';

type ActionKey = 'copy' | 'disable_confirm' | 'history';
const ITEMS = [
	{ key: 'copy', label: 'Добавить версию' },
	{ key: 'disable_confirm', label: 'Отключить подвтерждение КФО' },
	{ key: 'history', label: 'История изменений' },
	{},
] as const;

const RowActions = memo(function RowActions({
	row,
	onAction,
}: {
	row: ConsRow;
	onAction: (key: ActionKey, _row: ConsRow) => void;
}) {
	return (
		<Dropdown
			trigger={['click']}
			menu={{
				items: ITEMS as any,
				onClick: ({ key, domEvent }) => {
					domEvent.stopPropagation();
					onAction(key as ActionKey, row);
				},
			}}>
			<Button icon={<MoreOutlined />} onClick={(e) => e.stopPropagation()} />
		</Dropdown>
	);
});
export function ConsoleTableWidget() {
	const navigate = useNavigate();
	const { group_id } = useParams();
	const [searchParams, setSearchParams] = useSearchParams();
	const consolidations = useAppSelector((s) => s.consolidations.consolidations);
	const loading = useAppSelector((s) => s.consolidations.loading);

	const { columnFilters, setColumnFilters, sort, setSort, resetAll, hasActiveFilters } = useTableFilters<ConsRow>();
	const rawRows = useMemo(() => flattenCons(consolidations), [consolidations]);

	// const [sort, setSort] = useState<SortState<ConsRow>>(null);

	// no globalQuery state at all
	const { rows: filtered } = useFilteredRows(rawRows, consConfigBase, '', columnFilters, sort);
	const grouped = useMemo(() => groupAdjacent(filtered), [filtered]);
	const { visibleRows, expanded, toggle } = useGrouping(grouped);

	const config: TableConfig<ConsRow> = useMemo(
		() => ({
			...consConfigBase,
			columns: consConfigBase.columns.map((col) =>
				isGroup(col) || col.key !== 'year'
					? col
					: {
							...col,
							render: (value, row: ConsRow) => {
								if (row.isPrimary && row.groupSize > 1) {
									const open = expanded.has(row.group_id);
									return (
										<Space size={4}>
											<button
												type='button'
												aria-label={open ? 'Свернуть версии' : 'Развернуть версии'}
												onClick={(e) => {
													e.stopPropagation();
													toggle(row.group_id);
												}}
												style={{ cursor: 'pointer', display: 'inline-flex', background: 'none', border: 0, padding: 0 }}>
												{open ? <DownOutlined /> : <RightOutlined />}
											</button>
											<span>{String(value)}</span>
											<span style={{ color: '#999', fontSize: 12 }}>({row.groupSize})</span>
										</Space>
									);
								}
								if (!row.isPrimary) {
									return (
										<span style={{ paddingLeft: 24, color: '#666' }}>
											<span style={{ marginRight: 6, color: '#bbb' }}>↳</span>
											{String(value)}
										</span>
									);
								}
								return <span style={{ paddingLeft: 22 }}>{String(value)}</span>;
							},
						},
			),
		}),
		[expanded, toggle],
	);

	const { visibleKeys, setVisibleKeys } = useVisibleColumns(config);

	const handleDropdownAction = useCallback(
		(key: ActionKey, _row: ConsRow) => {
			if (key === 'history') {
				navigate('/logging');
			} else {
				message.info('Будет позже');
			}
		},
		[navigate],
	);
	const extraColumns: ColumnsType<ConsRow> = useMemo(
		() => [
			{
				key: 'actions',
				title: '',
				width: 120,
				render: (_: unknown, row: ConsRow) => (
					<div style={{ display: 'flex' }}>
						<Button
							type='default'
							onClick={(e) => {
								// иначе клик всплывает до onRow строки, и его setSearchParams(replace) отменяет переход
								e.stopPropagation();
								navigate(`/groups/${group_id}/versions/${row.id}/osv`);
							}}>
							К отчётности <ArrowRightOutlined />
						</Button>
						<RowActions row={row} onAction={handleDropdownAction} />
					</div>
				),
			},
		],
		[navigate, group_id, handleDropdownAction],
	);

	const onRow: TableProps<ConsRow>['onRow'] = (row) => ({
		// выбранная версия живёт в URL (?version=): переживает уход на «К отчётности» и «Назад»
		onClick: () => setSearchParams({ version: row.id }, { replace: true }),
		// выбранная версия подсвечена, как в макете [34]
		style: row.id === searchParams.get('version') ? { background: '#f0f7ee' } : undefined,
	});
	return (
		<div style={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
			<Space
				style={{
					width: '100%',
					justifyContent: 'space-between',
					padding: '12px 16px',
					flex: 0,
				}}>
				<div style={{ display: 'flex', alignItems: 'baseline', gap: 8, margin: 0 }}>
					<h2
						style={{
							display: 'block',
							boxSizing: 'border-box',
							fontSize: 17,
							fontWeight: 600,
							margin: 0,
						}}>
						Консолидации
					</h2>
					<span style={{ fontSize: 13, color: 'rgb(102, 112, 133)' }}>{rawRows.length} шт.</span>
				</div>
				<div>
					{hasActiveFilters && (
						<Button
							type='default'
							onClick={() => {
								resetAll();
							}}>
							Сбросить фильтры
						</Button>
					)}
					<ColumnSettings defs={config.columns} visibleKeys={visibleKeys} onChange={setVisibleKeys} />
				</div>
			</Space>
			<DataTable
				config={config}
				rows={visibleRows}
				allRows={rawRows}
				loading={loading}
				visibleKeys={visibleKeys}
				columnFilters={columnFilters}
				onColumnFiltersChange={setColumnFilters}
				sortState={sort}
				onSortChange={setSort}
				extraColumns={extraColumns}
				onRow={onRow}
			/>
		</div>
	);
}