import type { IDatasource } from '@ag-grid-community/core';
import type { AgGridReact as AgGridReactType } from '@ag-grid-community/react/lib/agGridReact';
import { Flex, Group, Stack } from '@mantine/core';
import debounce from 'lodash/debounce';
import { ChangeEvent, MutableRefObject, useCallback } from 'react';
import { api } from '/@/renderer/api';
import { queryKeys } from '/@/renderer/api/query-keys';
import { LibraryItem, SongListQuery } from '/@/renderer/api/types';
import { PageHeader, SearchInput } from '/@/renderer/components';
import { FilterBar, LibraryHeaderBar } from '/@/renderer/features/shared';
import { SongListHeaderFilters } from '/@/renderer/features/songs/components/song-list-header-filters';
import { useSongListContext } from '/@/renderer/features/songs/context/song-list-context';
import { useContainerQuery } from '/@/renderer/hooks';
import { queryClient } from '/@/renderer/lib/react-query';
import {
  SongListFilter,
  useCurrentServer,
  useListStoreActions,
  useSongListFilter,
} from '/@/renderer/store';
import { usePlayButtonBehavior } from '/@/renderer/store/settings.store';

interface SongListHeaderProps {
  itemCount?: number;
  tableRef: MutableRefObject<AgGridReactType | null>;
  title?: string;
}

export const SongListHeader = ({ title, itemCount, tableRef }: SongListHeaderProps) => {
  const server = useCurrentServer();
  const { id, pageKey, handlePlay } = useSongListContext();
  const filter = useSongListFilter({ id, key: pageKey });
  const { setFilter, setTablePagination } = useListStoreActions();
  const cq = useContainerQuery();

  const handleFilterChange = useCallback(
    async (filters?: SongListFilter) => {
      const dataSource: IDatasource = {
        getRows: async (params) => {
          const limit = params.endRow - params.startRow;
          const startIndex = params.startRow;

          const pageFilters = filters || filter;

          const query: SongListQuery = {
            limit,
            startIndex,
            ...pageFilters,
          };

          const queryKey = queryKeys.songs.list(server?.id || '', query);

          const songsRes = await queryClient.fetchQuery(
            queryKey,
            async ({ signal }) =>
              api.controller.getSongList({
                apiClientProps: {
                  server,
                  signal,
                },
                query,
              }),
            { cacheTime: 1000 * 60 * 1 },
          );

          params.successCallback(songsRes?.items || [], songsRes?.totalRecordCount || 0);
        },
        rowCount: undefined,
      };
      tableRef.current?.api.setDatasource(dataSource);
      tableRef.current?.api.purgeInfiniteCache();
      tableRef.current?.api.ensureIndexVisible(0, 'top');
      setTablePagination({ data: { currentPage: 0 }, key: pageKey });
    },
    [filter, pageKey, server, setTablePagination, tableRef],
  );

  const handleSearch = debounce((e: ChangeEvent<HTMLInputElement>) => {
    const previousSearchTerm = filter.searchTerm;
    const searchTerm = e.target.value === '' ? undefined : e.target.value;
    const updatedFilters = setFilter({
      data: { searchTerm },
      itemType: LibraryItem.SONG,
      key: pageKey,
    }) as SongListFilter;
    if (previousSearchTerm !== searchTerm) handleFilterChange(updatedFilters);
  }, 500);

  const playButtonBehavior = usePlayButtonBehavior();

  return (
    <Stack
      ref={cq.ref}
      spacing={0}
    >
      <PageHeader backgroundColor="var(--titlebar-bg)">
        <Flex
          justify="space-between"
          w="100%"
        >
          <LibraryHeaderBar>
            <LibraryHeaderBar.PlayButton
              onClick={() => handlePlay?.({ playType: playButtonBehavior })}
            />
            <LibraryHeaderBar.Title>{title || 'Tracks'}</LibraryHeaderBar.Title>
            <LibraryHeaderBar.Badge isLoading={itemCount === null || itemCount === undefined}>
              {itemCount}
            </LibraryHeaderBar.Badge>
          </LibraryHeaderBar>
          <Group>
            <SearchInput
              defaultValue={filter.searchTerm}
              openedWidth={cq.isMd ? 250 : cq.isSm ? 200 : 150}
              onChange={handleSearch}
            />
          </Group>
        </Flex>
      </PageHeader>
      <FilterBar>
        <SongListHeaderFilters tableRef={tableRef} />
      </FilterBar>
    </Stack>
  );
};