Update dapper-fake functions to match the changed dapper methods return shapes (pagination)

Author: Oksamies

packages/dapper-fake/src/fakers/community.ts

@@ -83,11 +83,28 @@ export const getFakeCommunities: GetCommunities = async (
   }
 
   const count = communities.length;
-  const pageCommunities = communities.splice((page - 1) * pageSize, pageSize);
+  const currentPage = Math.max(page, 1);
+  const startIndex = (currentPage - 1) * pageSize;
+  const pageCommunities = communities.slice(startIndex, startIndex + pageSize);
+  const hasNext = startIndex + pageSize < count;
+  const buildPageUrl = (targetPage: number) => {
+    const params = new URLSearchParams();
+    params.set("page", String(targetPage));
+    if (ordering) {
+      params.set("ordering", ordering);
+    }
+    if (typeof search === "string" && search.trim().length > 0) {
+      params.set("search", search);
+    }
+    return `https://thunderstore.io/api/cyberstorm/community/?${params.toString()}`;
+  };
+  const next = hasNext ? buildPageUrl(currentPage + 1) : null;
+  const previous = currentPage > 1 ? buildPageUrl(currentPage - 1) : null;
 
   return {
     count,
-    hasMore: page > fullPages + 1,
+    next,
+    previous,
     results: pageCommunities,
   };
 };

packages/dapper-fake/src/fakers/package.ts

@@ -36,25 +36,93 @@ const getFakePackageListing = (
 // here that's done for community listing, but getting all the filters
 // to work properly might not be worth the effort.
 export const getFakePackageListings = async (
-  type: PackageListingType
-  // ordering = "last-updated",
-  // page = 1,
-  // q = "",
-  // includedCategories = [],
-  // excludedCategories = [],
-  // section = "",
-  // nsfw = false,
-  // deprecated = false
-) => ({
-  count: 200,
-  hasMore: true,
-  results: range(20).map(() =>
-    getFakePackageListing(
-      type.communityId,
-      type.kind === "namespace" ? type.namespaceId : faker.word.sample()
-    )
-  ),
-});
+  type: PackageListingType,
+  ordering = "last-updated",
+  page = 1,
+  q = "",
+  includedCategories: string[] = [],
+  excludedCategories: string[] = [],
+  section = "",
+  nsfw = false,
+  deprecated = false
+) => {
+  const pageSize = 20;
+  const count = 200;
+  const normalizedPage = Number.isFinite(page)
+    ? Math.max(1, Math.trunc(page))
+    : 1;
+  const currentPage = normalizedPage;
+  const startIndex = (currentPage - 1) * pageSize;
+  const endIndex = Math.min(startIndex + pageSize, count);
+  const pageLength = Math.max(endIndex - startIndex, 0);
+
+  const collectionPath = (() => {
+    switch (type.kind) {
+      case "community":
+        return `api/cyberstorm/listing/${type.communityId.toLowerCase()}/`;
+      case "namespace":
+        return `api/cyberstorm/listing/${type.communityId.toLowerCase()}/${type.namespaceId.toLowerCase()}/`;
+      case "package-dependants":
+        return `api/cyberstorm/listing/${type.communityId.toLowerCase()}/${type.namespaceId.toLowerCase()}/${type.packageName.toLowerCase()}/dependants/`;
+      default:
+        return "api/cyberstorm/listing/";
+    }
+  })();
+
+  const buildQueryString = (targetPage: number) => {
+    const params = new URLSearchParams();
+    params.set("page", String(targetPage));
+    if (ordering) {
+      params.set("ordering", ordering);
+    }
+    if (q) {
+      params.set("q", q);
+    }
+    includedCategories?.forEach((value) => {
+      params.append("included_categories", value);
+    });
+    excludedCategories?.forEach((value) => {
+      params.append("excluded_categories", value);
+    });
+    if (section) {
+      params.set("section", section);
+    }
+    if (nsfw) {
+      params.set("nsfw", "true");
+    }
+    if (deprecated) {
+      params.set("deprecated", "true");
+    }
+    return params.toString();
+  };
+
+  const buildPageUrl = (targetPage: number) =>
+    `https://thunderstore.io/${collectionPath}?${buildQueryString(targetPage)}`;
+
+  const hasNext = endIndex < count;
+  const next = hasNext ? buildPageUrl(currentPage + 1) : null;
+  const previous = currentPage > 1 ? buildPageUrl(currentPage - 1) : null;
+
+  const results = range(pageLength).map((index) => {
+    const namespaceId =
+      type.kind === "namespace" || type.kind === "package-dependants"
+        ? type.namespaceId
+        : `${type.communityId}-namespace-${currentPage}-${index}`;
+    const packageName =
+      type.kind === "package-dependants"
+        ? `${type.packageName.toLowerCase()}-dependant-${currentPage}-${index}`
+        : `${namespaceId}-package-${currentPage}-${index}`;
+
+    return getFakePackageListing(type.communityId, namespaceId, packageName);
+  });
+
+  return {
+    count,
+    next,
+    previous,
+    results,
+  };
+};
 
 const getFakeDependencies = async (
   community: string,
@@ -274,11 +342,14 @@ export const getFakePackageVersionDependencies = async (
   page?: number
 ) => {
   setSeed(`${namespace}-${name}-${version}`);
-  page = page ?? 1;
+  const normalizedPage =
+    typeof page === "number" && Number.isFinite(page)
+      ? Math.max(1, Math.trunc(page))
+      : 1;
 
   // Split the fake data into pages of 10 items each.
 
-  const start = (page - 1) * 10;
+  const start = (normalizedPage - 1) * 10;
   const end = start + 10;
   const items = fakePackageVersionDependencies.slice(start, end);
 
@@ -287,13 +358,13 @@ export const getFakePackageVersionDependencies = async (
     next:
       end < fakePackageVersionDependencies.length
         ? `https://thunderstore.io/api/cyberstorm/package/${namespace}/${name}/v/${version}/dependencies/?page=${
-            page + 1
+            normalizedPage + 1
           }`
         : null,
     previous:
-      page > 1
+      normalizedPage > 1
         ? `https://thunderstore.io/api/cyberstorm/package/${namespace}/${name}/v/${version}/dependencies/?page=${
-            page - 1
+            normalizedPage - 1
           }`
         : null,
     results: items,