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, 49 insertions, 0 deletions

diff --git a/src/services/graphql/mutators/send-email.ts b/src/services/graphql/mutators/send-email.ts
new file mode 100644
index 0000000..45b6fca
--- /dev/null
+++ b/src/services/graphql/mutators/send-email.ts
@@ -0,0 +1,49 @@
+import { fetchGraphQL, getGraphQLUrl } from 'src/utils/helpers';
+
+type SentEmail = {
+  clientMutationId: string;
+  message: string;
+  origin: string;
+  replyTo: string;
+  sent: boolean;
+};
+
+type SendEmailResponse = {
+  sendEmail: SentEmail;
+};
+
+const sendMailMutation = `mutation SendEmail($body: String, $clientMutationId: String, $replyTo: String, $subject: String) {
+  sendEmail(
+    input: {body: $body, clientMutationId: $clientMutationId, replyTo: $replyTo, subject: $subject}
+  ) {
+    clientMutationId
+    message
+    origin
+    replyTo
+    sent
+    to
+  }
+}`;
+
+export type SendMailInput = {
+  body: string;
+  clientMutationId: string;
+  replyTo: string;
+  subject: string;
+};
+
+/**
+ * Send an email using GraphQL API.
+ *
+ * @param {SendMailInput} data - The mail data.
+ * @returns {Promise<SentEmail>} The mutation response.
+ */
+export const sendMail = async (data: SendMailInput): Promise<SentEmail> => {
+  const response = await fetchGraphQL<SendEmailResponse>({
+    query: sendMailMutation,
+    url: getGraphQLUrl(),
+    variables: { ...data },
+  });
+
+  return response.sendEmail;
+};