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EventsContainer.tsx
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EventsContainer.tsx
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import React, { FC, useCallback, useMemo, useState } from "react";
import { useMediaQuery } from "react-responsive";
import { useHistory } from "react-router-dom";
import { Loader } from "semantic-ui-react";
import { useAppConfigContext, useLanguageConfigContext } from "../../app";
import useFetchModels, {
FetchModelsActionType,
FetchModelsState,
} from "../../hooks/useFetchModels";
import { ORDER_DIRECTION, OR_QUERY_LIMIT_NUM } from "../../networking/constants";
import EventService, { RenderableEvent } from "../../networking/EventService";
import { MeetingCard } from "../../components/Cards/MeetingCard";
import useFilter from "../../components/Filters/useFilter";
import { EventsFilter } from "../../components/Filters/EventsFilter";
import { getDateText } from "../../components/Filters/SelectDateRange";
import { getSortingText } from "../../components/Filters/SelectSorting";
import {
getCheckboxText,
getSelectedOptions,
} from "../../components/Filters/SelectTextFilterOptions";
import FetchCardsStatus from "../../components/Shared/FetchCardsStatus";
import PageContainer from "../../components/Shared/PageContainer";
import SearchBar from "../../components/Shared/SearchBar";
import SearchPageTitle from "../../components/Shared/SearchPageTitle";
import ShowMoreCards from "../../components/Shared/ShowMoreCards";
import { CardsContainer } from "../CardsContainer";
import { EventsData } from "./types";
import { SearchEventsState } from "../../pages/SearchEventsPage/types";
import { SEARCH_TYPE } from "../../pages/SearchPage/types";
import { strings } from "../../assets/LocalizedStrings";
import { FETCH_CARDS_BATCH_SIZE } from "../../constants/ProjectConstants";
import { screenWidths } from "../../styles/mediaBreakpoints";
import getTimeZoneDate from "../../utils/getTimeZoneName";
interface EventsContainerProps extends EventsData {
initialSelectedBodies: Record<string, boolean>;
}
const EventsContainer: FC<EventsContainerProps> = ({
bodies,
initialSelectedBodies,
}: EventsContainerProps) => {
const { firebaseConfig, municipality } = useAppConfigContext();
const { language } = useLanguageConfigContext();
const dateRangeFilter = useFilter<string>({
name: strings.date,
initialState: { start: "", end: "" },
defaultDataValue: "",
textRepFunction: getDateText(language, municipality.timeZone),
});
const committeeFilter = useFilter<boolean>({
name: strings.committee,
initialState: bodies.reduce((obj, body) => {
obj[body.id as string] = initialSelectedBodies[body.id as string] || false;
return obj;
}, {} as Record<string, boolean>),
defaultDataValue: false,
textRepFunction: getCheckboxText,
limit: OR_QUERY_LIMIT_NUM,
});
const sortFilter = useFilter<string>({
name: "Sort",
initialState: {
by: "event_datetime",
order: ORDER_DIRECTION.desc,
label: strings.newest_first,
},
defaultDataValue: "",
textRepFunction: getSortingText,
});
const fetchEventsFunctionCreator = useCallback(
(state: FetchModelsState<RenderableEvent>) => async () => {
const lastVisibleEventDate =
!state.fetchModels && state.models.length > 0
? state.models[state.models.length - 1].event_datetime
: undefined;
const eventService = new EventService(firebaseConfig);
const events = await eventService.getEvents(
state.batchSize,
getSelectedOptions(committeeFilter.state),
{
start: getTimeZoneDate(new Date(dateRangeFilter.state.start), municipality.timeZone),
end: getTimeZoneDate(new Date(dateRangeFilter.state.end), municipality.timeZone),
},
{
by: sortFilter.state.by,
order: sortFilter.state.order as ORDER_DIRECTION,
},
lastVisibleEventDate
);
const renderableEvents = await Promise.all(
events.map((event) => {
return eventService.getRenderableEvent(event);
})
);
return Promise.resolve(renderableEvents);
},
[
firebaseConfig,
committeeFilter.state,
dateRangeFilter.state,
sortFilter.state,
municipality.timeZone,
]
);
const isDesktop = useMediaQuery({ query: `(min-width: ${screenWidths.desktop})` });
const { state, dispatch } = useFetchModels(
{
batchSize: FETCH_CARDS_BATCH_SIZE - (isDesktop ? 1 : 0),
models: [],
fetchModels: true,
showMoreModels: false,
hasMoreModels: false,
error: null,
},
fetchEventsFunctionCreator
);
const history = useHistory<SearchEventsState>();
const [searchQuery, setSearchQuery] = useState("");
const handleSearch = () => {
const queryParams = `?q=${searchQuery.trim().replace(/\s+/g, "+")}`;
history.push({
pathname: `/${SEARCH_TYPE.EVENT}/search`,
search: queryParams,
state: {
query: searchQuery.trim(),
committees: committeeFilter.state,
dateRange: dateRangeFilter.state,
},
});
};
const handlePopupClose = useCallback(() => {
dispatch({ type: FetchModelsActionType.FETCH_MODELS, payload: true });
}, [dispatch]);
const handleShowMoreEvents = useCallback(
() => dispatch({ type: FetchModelsActionType.FETCH_MODELS, payload: false }),
[dispatch]
);
const fetchEventsResult = useMemo(() => {
if (state.fetchModels) {
return <Loader active size="massive" />;
} else if (state.error) {
return <FetchCardsStatus>{state.error.toString()}</FetchCardsStatus>;
} else if (state.models.length === 0) {
return <FetchCardsStatus>{strings.no_results_found}</FetchCardsStatus>;
} else {
const cards = state.models.map(({ keyGrams, ...event }) => {
return {
link: `/${SEARCH_TYPE.EVENT}/${event.id}`,
jsx: <MeetingCard event={event} tags={keyGrams} />,
};
});
return <CardsContainer cards={cards} />;
}
}, [state.fetchModels, state.error, state.models]);
return (
<PageContainer>
<SearchPageTitle>
<h1 className="mzp-u-title-sm">{strings.events}</h1>
<SearchBar
placeholder={strings.search_topic_placeholder}
query={searchQuery}
setQuery={setSearchQuery}
handleSearch={handleSearch}
/>
</SearchPageTitle>
<EventsFilter
allBodies={bodies}
filters={[committeeFilter, dateRangeFilter, sortFilter]}
sortOptions={[
{ by: "event_datetime", order: ORDER_DIRECTION.desc, label: strings.newest_first },
{ by: "event_datetime", order: ORDER_DIRECTION.asc, label: strings.oldest_first },
]}
handlePopupClose={handlePopupClose}
/>
{fetchEventsResult}
<ShowMoreCards isVisible={state.hasMoreModels && !state.fetchModels}>
<button className="mzp-c-button mzp-t-secondary mzp-t-lg" onClick={handleShowMoreEvents}>
<span>{strings.show_more}</span>
<Loader inline active={state.showMoreModels} size="tiny" />
</button>
</ShowMoreCards>
</PageContainer>
);
};
export default EventsContainer;