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import {atOffset} from '#sugar';
export default {
contentDependencies: [
'generateInterpageDotSwitcher',
'generateNextLink',
'generatePreviousLink',
'linkFlash',
],
extraDependencies: ['html', 'language', 'wikiData'],
sprawl: ({flashActData}) =>
({flashActData}),
query(sprawl, flash) {
// Don't sort chronologically here. The previous/next buttons should match
// the order in the sidebar, by act rather than date.
const flashes =
sprawl.flashActData
.flatMap(act => act.flashes);
const index =
flashes.indexOf(flash);
const previousFlash =
atOffset(flashes, index, -1);
const nextFlash =
atOffset(flashes, index, +1);
return {previousFlash, nextFlash};
},
relations: (relation, query) => ({
switcher:
relation('generateInterpageDotSwitcher'),
previousLink:
relation('generatePreviousLink'),
nextLink:
relation('generateNextLink'),
previousFlashLink:
(query.previousFlash
? relation('linkFlash', query.previousFlash)
: null),
nextFlashLink:
(query.nextFlash
? relation('linkFlash', query.nextFlash)
: null),
}),
generate: (relations) =>
relations.switcher.slots({
links: [
relations.previousLink
.slot('link', relations.previousFlashLink),
relations.nextLink
.slot('link', relations.nextFlashLink),
],
}),
};
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