62 lines
2.9 KiB
JavaScript
62 lines
2.9 KiB
JavaScript
import { CacheStates } from "../../../shared/lib/app-router-context.shared-runtime";
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import { createRouterCacheKey } from "./create-router-cache-key";
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/**
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* Kick off fetch based on the common layout between two routes. Fill cache with data property holding the in-progress fetch.
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*/ export function fillCacheWithDataProperty(newCache, existingCache, flightSegmentPath, fetchResponse, bailOnParallelRoutes) {
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if (bailOnParallelRoutes === void 0) bailOnParallelRoutes = false;
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const isLastEntry = flightSegmentPath.length <= 2;
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const [parallelRouteKey, segment] = flightSegmentPath;
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const cacheKey = createRouterCacheKey(segment);
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const existingChildSegmentMap = existingCache.parallelRoutes.get(parallelRouteKey);
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if (!existingChildSegmentMap || bailOnParallelRoutes && existingCache.parallelRoutes.size > 1) {
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// Bailout because the existing cache does not have the path to the leaf node
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// or the existing cache has multiple parallel routes
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// Will trigger lazy fetch in layout-router because of missing segment
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return {
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bailOptimistic: true
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};
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}
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let childSegmentMap = newCache.parallelRoutes.get(parallelRouteKey);
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if (!childSegmentMap || childSegmentMap === existingChildSegmentMap) {
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childSegmentMap = new Map(existingChildSegmentMap);
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newCache.parallelRoutes.set(parallelRouteKey, childSegmentMap);
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}
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const existingChildCacheNode = existingChildSegmentMap.get(cacheKey);
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let childCacheNode = childSegmentMap.get(cacheKey);
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// In case of last segment start off the fetch at this level and don't copy further down.
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if (isLastEntry) {
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if (!childCacheNode || !childCacheNode.data || childCacheNode === existingChildCacheNode) {
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childSegmentMap.set(cacheKey, {
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status: CacheStates.DATA_FETCH,
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data: fetchResponse(),
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subTreeData: null,
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parallelRoutes: new Map()
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});
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}
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return;
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}
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if (!childCacheNode || !existingChildCacheNode) {
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// Start fetch in the place where the existing cache doesn't have the data yet.
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if (!childCacheNode) {
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childSegmentMap.set(cacheKey, {
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status: CacheStates.DATA_FETCH,
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data: fetchResponse(),
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subTreeData: null,
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parallelRoutes: new Map()
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});
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}
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return;
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}
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if (childCacheNode === existingChildCacheNode) {
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childCacheNode = {
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status: childCacheNode.status,
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data: childCacheNode.data,
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subTreeData: childCacheNode.subTreeData,
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parallelRoutes: new Map(childCacheNode.parallelRoutes)
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};
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childSegmentMap.set(cacheKey, childCacheNode);
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}
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return fillCacheWithDataProperty(childCacheNode, existingChildCacheNode, flightSegmentPath.slice(2), fetchResponse);
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}
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//# sourceMappingURL=fill-cache-with-data-property.js.map
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