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import React from "react";
import { useTranslation } from "react-i18next";
import { Container } from "react-bootstrap";
import { HttpNetworkError, HttpNotFoundError } from "@/http/common";
import { getHttpTimelineClient, HttpTimelineInfo } from "@/http/timeline";
import { getAlertHost } from "@/services/alert";
import Timeline from "./Timeline";
import TimelinePostEdit from "./TimelinePostEdit";
import useReverseScrollPositionRemember from "@/utilities/useReverseScrollPositionRemember";
import { generatePalette, setPalette } from "@/palette";
export interface TimelinePageCardProps {
timeline: HttpTimelineInfo;
collapse: boolean;
toggleCollapse: () => void;
className?: string;
onReload: () => void;
}
export interface TimelinePageTemplateProps {
timelineName: string;
notFoundI18nKey: string;
reloadKey: number;
onReload: () => void;
CardComponent: React.ComponentType<TimelinePageCardProps>;
}
const TimelinePageTemplate: React.FC<TimelinePageTemplateProps> = (props) => {
const { timelineName, reloadKey, onReload, CardComponent } = props;
const { t } = useTranslation();
const [state, setState] = React.useState<
"loading" | "done" | "offline" | "notexist" | "error"
>("loading");
const [timeline, setTimeline] = React.useState<HttpTimelineInfo | null>(null);
useReverseScrollPositionRemember();
React.useEffect(() => {
setState("loading");
setTimeline(null);
}, [timelineName]);
React.useEffect(() => {
let subscribe = true;
void getHttpTimelineClient()
.getTimeline(timelineName)
.then(
(data) => {
if (subscribe) {
setState("done");
setTimeline(data);
}
},
(error) => {
if (subscribe) {
if (error instanceof HttpNetworkError) {
setState("offline");
} else if (error instanceof HttpNotFoundError) {
setState("notexist");
} else {
console.error(error);
setState("error");
}
setTimeline(null);
}
}
);
return () => {
subscribe = false;
};
}, [timelineName, reloadKey]);
React.useEffect(() => {
if (timeline != null && timeline.color != null) {
return setPalette(generatePalette({ primary: timeline.color }));
}
}, [timeline]);
const [bottomSpaceHeight, setBottomSpaceHeight] = React.useState<number>(0);
const [timelineReloadKey, setTimelineReloadKey] = React.useState<number>(0);
const reloadTimeline = (): void => {
setTimelineReloadKey((old) => old + 1);
};
const onPostEditHeightChange = React.useCallback((height: number): void => {
setBottomSpaceHeight(height);
if (height === 0) {
const alertHost = getAlertHost();
if (alertHost != null) {
alertHost.style.removeProperty("margin-bottom");
}
} else {
const alertHost = getAlertHost();
if (alertHost != null) {
alertHost.style.marginBottom = `${height}px`;
}
}
}, []);
const cardCollapseLocalStorageKey = `timeline.${timelineName}.cardCollapse`;
const [cardCollapse, setCardCollapse] = React.useState<boolean>(true);
React.useEffect(() => {
const savedCollapse =
window.localStorage.getItem(cardCollapseLocalStorageKey) === "true";
setCardCollapse(savedCollapse);
}, [cardCollapseLocalStorageKey]);
const toggleCardCollapse = (): void => {
const newState = !cardCollapse;
setCardCollapse(newState);
window.localStorage.setItem(
cardCollapseLocalStorageKey,
newState.toString()
);
};
return (
<>
{timeline != null ? (
<CardComponent
className="timeline-template-card"
timeline={timeline}
collapse={cardCollapse}
toggleCollapse={toggleCardCollapse}
onReload={onReload}
/>
) : null}
<Container
className="px-0"
style={{
minHeight: `calc(100vh - ${56 + bottomSpaceHeight}px)`,
}}
>
{(() => {
if (state === "offline") {
// TODO: i18n
return <p className="text-danger">Offline!</p>;
} else if (state === "notexist") {
return <p className="text-danger">{t(props.notFoundI18nKey)}</p>;
} else if (state === "error") {
// TODO: i18n
return <p className="text-danger">Error!</p>;
} else {
return (
<Timeline
timelineName={timeline?.name}
reloadKey={timelineReloadKey}
onReload={reloadTimeline}
/>
);
}
})()}
</Container>
{timeline != null && timeline.postable ? (
<>
<div
style={{ height: bottomSpaceHeight }}
className="flex-fix-length"
/>
<TimelinePostEdit
className="fixed-bottom"
timeline={timeline}
onHeightChange={onPostEditHeightChange}
onPosted={reloadTimeline}
/>
</>
) : null}
</>
);
};
export default TimelinePageTemplate;
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