refactor(services, types): reorganize GraphQL fetchers and data types

The Typescript mapped types was useful for autocompletion in fetchers
but their are harder to maintain. I think it's better to keep each
query close to its fetcher to have a better understanding of the
fetched data. So I:
* colocate queries with their own fetcher
* colocate mutations with their own mutator
* remove Typescript mapped types for queries and mutations
* move data convertors inside graphql services
* rename most of data types and fetchers

1 files changed, 78 insertions, 0 deletions

diff --git a/src/services/graphql/fetchers/thematics/fetch-thematics-list.ts b/src/services/graphql/fetchers/thematics/fetch-thematics-list.ts
new file mode 100644
index 0000000..f4d22c6
--- /dev/null
+++ b/src/services/graphql/fetchers/thematics/fetch-thematics-list.ts
@@ -0,0 +1,78 @@
+import type {
+  GraphQLConnection,
+  GraphQLEdgesInput,
+  GraphQLTaxonomyOrderBy,
+  GraphQLTaxonomyWhere,
+  Nullable,
+  WPThematicPreview,
+} from '../../../../types';
+import { fetchGraphQL, getGraphQLUrl } from '../../../../utils/helpers';
+
+type ThematicsListResponse = {
+  thematics: Nullable<GraphQLConnection<WPThematicPreview>>;
+};
+
+const thematicsListQuery = `query ThematicsList($after: String, $before: String, $first: Int, $last: Int, $orderby: [PostObjectsConnectionOrderbyInput], $search: String, $title: String) {
+  thematics(
+    after: $after
+    before: $before
+    first: $first
+    last: $last
+    where: {orderby: $orderby, search: $search, title: $title}
+  ) {
+    edges {
+      cursor
+      node {
+        contentParts {
+          beforeMore
+        }
+        databaseId
+        featuredImage {
+          node {
+            altText
+            mediaDetails {
+              height
+              width
+            }
+            sourceUrl
+            title
+          }
+        }
+        slug
+        title
+      }
+    }
+  }
+}`;
+
+export type FetchThematicsListInput = GraphQLEdgesInput & {
+  orderBy?: GraphQLTaxonomyOrderBy;
+  where?: GraphQLTaxonomyWhere;
+};
+
+/**
+ * Retrieve a paginated list of WordPress thematics.
+ *
+ * @param {FetchThematicsListInput} input - The input to retrieve thematics.
+ * @returns {Promise<GraphQLConnection<WPThematicPreview>>} The paginated thematics.
+ */
+export const fetchThematicsList = async ({
+  orderBy,
+  where,
+  ...vars
+}: FetchThematicsListInput): Promise<GraphQLConnection<WPThematicPreview>> => {
+  const response = await fetchGraphQL<ThematicsListResponse>({
+    query: thematicsListQuery,
+    url: getGraphQLUrl(),
+    variables: {
+      ...vars,
+      ...where,
+      orderBy: orderBy ? [orderBy] : undefined,
+    },
+  });
+
+  if (!response.thematics)
+    return Promise.reject(new Error('No thematics found.'));
+
+  return response.thematics;
+};