feat(utils,modules-sdk): Remote query object to string array (#5216)

**What**
- transform remote query object back to string array
- get all fields and fields from given relations from a GraphQL schema

Co-authored-by: Carlos R. L. Rodrigues <37986729+carlos-r-l-rodrigues@users.noreply.github.com>

packages/modules-sdk/src/__tests__/utils/get-fields-and-relations.spec.ts

@@ -0,0 +1,94 @@
+import { mergeTypeDefs } from "@graphql-tools/merge"
+import { makeExecutableSchema } from "@graphql-tools/schema"
+import { getFieldsAndRelations } from "../../utils"
+
+const userModule = `
+type User {
+  id: ID!
+  name: String!
+  blabla: WHATEVER
+}
+
+type Post {
+  author: User!
+}
+`
+
+const postModule = `
+type Post {
+  id: ID!
+  title: String!
+  date: String
+}
+
+type User {
+  posts: [Post!]!
+}
+
+type WHATEVER {
+  random_field: String
+  post: Post
+}
+`
+
+const mergedSchema = mergeTypeDefs([userModule, postModule])
+const schema = makeExecutableSchema({
+  typeDefs: mergedSchema,
+})
+
+const types = schema.getTypeMap()
+
+describe("getFieldsAndRelations", function () {
+  it("Should get all fields of a given entity", async function () {
+    const fields = getFieldsAndRelations(types, "User")
+    expect(fields).toEqual(expect.arrayContaining(["id", "name"]))
+  })
+
+  it("Should get all fields of a given entity and a relation", async function () {
+    const fields = getFieldsAndRelations(types, "User", ["posts"])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+      ])
+    )
+  })
+
+  it("Should get all fields of a given entity and many relations", async function () {
+    const fields = getFieldsAndRelations(types, "User", [
+      "posts",
+      "blabla",
+      "blabla.post",
+    ])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+        "blabla.random_field",
+        "blabla.post.id",
+        "blabla.post.title",
+        "blabla.post.date",
+      ])
+    )
+  })
+
+  it("Should get all fields of a given entity and many relations limited to the relations given", async function () {
+    const fields = getFieldsAndRelations(types, "User", ["posts", "blabla"])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+        "blabla.random_field",
+      ])
+    )
+  })
+})

packages/modules-sdk/src/__tests__/utils/graphql-schema-to-fields.ts

@@ -0,0 +1,110 @@
+import { mergeTypeDefs } from "@graphql-tools/merge"
+import { makeExecutableSchema } from "@graphql-tools/schema"
+import { graphqlSchemaToFields } from "../../utils"
+
+const userModule = `
+type User {
+  id: ID!
+  name: String!
+  blabla: WHATEVER
+}
+
+type Post {
+  author: User!
+}
+`
+
+const postModule = `
+type Post {
+  id: ID!
+  title: String!
+  date: String
+}
+
+type User {
+  posts: [Post!]!
+}
+
+type WHATEVER {
+  random_field: String
+  post: Post
+}
+`
+
+const mergedSchema = mergeTypeDefs([userModule, postModule])
+const schema = makeExecutableSchema({
+  typeDefs: mergedSchema,
+})
+
+const types = schema.getTypeMap()
+
+describe("graphqlSchemaToFields", function () {
+  it("Should get all fields of a given entity", async function () {
+    const fields = graphqlSchemaToFields(types, "User")
+    expect(fields).toEqual(expect.arrayContaining(["id", "name"]))
+  })
+
+  it("Should get all fields of a given entity and a relation", async function () {
+    const fields = graphqlSchemaToFields(types, "User", ["posts"])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+      ])
+    )
+  })
+
+  it("Should get all fields of a given entity and many relations", async function () {
+    const fields = graphqlSchemaToFields(types, "User", [
+      "posts",
+      "blabla",
+      "blabla.post",
+    ])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+        "blabla.random_field",
+        "blabla.post.id",
+        "blabla.post.title",
+        "blabla.post.date",
+      ])
+    )
+  })
+
+  it("Should get all fields of a given entity and many relations limited to the relations given", async function () {
+    const fields = graphqlSchemaToFields(types, "User", ["posts", "blabla"])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+        "blabla.random_field",
+      ])
+    )
+  })
+
+  it("Should get all fields of a given entity and many relations limited to the relations given if they exists", async function () {
+    const fields = graphqlSchemaToFields(types, "User", [
+      "posts",
+      "doNotExists",
+    ])
+    expect(fields).toEqual(
+      expect.arrayContaining([
+        "id",
+        "name",
+        "posts.id",
+        "posts.title",
+        "posts.date",
+      ])
+    )
+  })
+})