feat(codegen): add typegen methods to codegen package

co-authored-by: Tonina Zhelyazkova <zhelyazkova.tonina@gmail.com>

packages/@sanity/codegen/package.json

@@ -59,18 +59,22 @@
   },
   "dependencies": {
     "@babel/core": "^7.23.9",
+    "@babel/generator": "^7.23.6",
     "@babel/preset-env": "^7.23.8",
     "@babel/preset-react": "^7.23.3",
     "@babel/preset-typescript": "^7.23.3",
     "@babel/register": "^7.23.7",
     "@babel/traverse": "^7.23.5",
     "@babel/types": "^7.23.9",
     "debug": "^4.3.4",
+    "globby": "^10.0.0",
+    "groq-js": "1.5.0-canary.1",
     "tsconfig-paths": "^4.2.0"
   },
   "devDependencies": {
     "@jest/globals": "^29.7.0",
     "@types/babel__core": "^7.20.5",
+    "@types/babel__generator": "^7.6.8",
     "@types/babel__register": "^7.17.3",
     "@types/babel__traverse": "^7.18.1",
     "@types/debug": "^4.1.12",

packages/@sanity/codegen/src/_exports/index.ts

@@ -1,3 +1,6 @@
+export {readSchema} from '../readSchema'
+export {findQueriesInPath} from '../typescript/findQueriesInPath'
 export {findQueriesInSource} from '../typescript/findQueriesInSource'
 export {getResolver} from '../typescript/moduleResolver'
 export {registerBabel} from '../typescript/registerBabel'
+export {TypeGenerator} from '../typescript/typeGenerator'

packages/@sanity/codegen/src/readSchema.ts

@@ -0,0 +1,14 @@
+import {readFile} from 'fs/promises'
+import {type SchemaType} from 'groq-js'
+
+/**
+ * Read a schema from a given path
+ * @param path - The path to the schema
+ * @returns The schema
+ * @internal
+ * @beta
+ **/
+export async function readSchema(path: string): Promise<SchemaType> {
+  const content = await readFile(path, 'utf-8')
+  return JSON.parse(content) // todo: ZOD validation?
+}

packages/@sanity/codegen/src/typescript/__tests__/__snapshots__/typeGenerator.test.ts.snap

@@ -0,0 +1,222 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`generateSchemaTypes generateTypeNodeTypes should be able to generate types for type nodes: boolean 1`] = `"export type test_2 = boolean;"`;
+
+exports[`generateSchemaTypes generateTypeNodeTypes should be able to generate types for type nodes: null 1`] = `"export type test_5 = null;"`;
+
+exports[`generateSchemaTypes generateTypeNodeTypes should be able to generate types for type nodes: number 1`] = `"export type test_3 = number;"`;
+
+exports[`generateSchemaTypes generateTypeNodeTypes should be able to generate types for type nodes: string 1`] = `"export type test = string;"`;
+
+exports[`generateSchemaTypes generateTypeNodeTypes should be able to generate types for type nodes: unknown 1`] = `"export type test_4 = unknown;"`;
+
+exports[`generateSchemaTypes should generate TypeScript type declarations for a schema 1`] = `
+"export type Author = {
+  _id: string;
+  _type: \\"author\\";
+  _createdAt: string;
+  _updatedAt: string;
+  _rev: string;
+  name?: string;
+};
+
+export type Post = {
+  _id: string;
+  _type: \\"post\\";
+  _createdAt: string;
+  _updatedAt: string;
+  _rev: string;
+  title?: string;
+  author?: {
+    _ref: string;
+    _weak?: boolean;
+  } | {
+    _ref: string;
+    _weak?: boolean;
+  };
+  slug?: Slug;
+  excerpt?: string;
+  mainImage?: {
+    _type: \\"image\\";
+    asset: {
+      _ref: string;
+      _weak?: boolean;
+    };
+    caption?: string;
+    attribution?: string;
+    hotspot?: {
+      _type: \\"sanity.imageHotspot\\";
+      x: number;
+      y: number;
+      height: number;
+      width: number;
+    };
+    crop?: {
+      _type: \\"sanity.imageCrop\\";
+      top: number;
+      bottom: number;
+      left: number;
+      right: number;
+    };
+  };
+  body?: BlockContent;
+};
+
+export type Ghost = {
+  _id: string;
+  _type: \\"ghost\\";
+  _createdAt: string;
+  _updatedAt: string;
+  _rev: string;
+  name?: string;
+};
+
+export type BlockContent = Array<{
+  _key: string;
+  level?: number;
+  style?: \\"normal\\" | \\"h1\\" | \\"h2\\" | \\"h3\\" | \\"h4\\" | \\"blockquote\\";
+  listItem?: \\"bullet\\";
+  children: Array<{
+    _key: string;
+    text: string;
+    marks: Array<string | \\"strong\\" | \\"em\\">;
+  }>;
+  markDefs: Array<{
+    href?: string;
+  }>;
+  _key: string;
+}>;
+
+export type SanityAssetSourceData = {
+  name?: string;
+  id?: string;
+  url?: string;
+  _type: \\"sanity.assetSourceData\\";
+};
+
+export type Slug = {
+  current?: string;
+  source?: string;
+  _type: \\"slug\\";
+};
+
+export type Geopoint = {
+  lat?: number;
+  lng?: number;
+  alt?: number;
+  _type: \\"geopoint\\";
+};
+
+export type SanityImageAsset = {
+  _id: string;
+  _type: \\"sanity.imageAsset\\";
+  _createdAt: string;
+  _updatedAt: string;
+  _rev: string;
+  originalFilename?: string;
+  label?: string;
+  title?: string;
+  description?: string;
+  altText?: string;
+  sha1hash?: string;
+  extension?: string;
+  mimeType?: string;
+  size?: number;
+  assetId?: string;
+  uploadId?: string;
+  path?: string;
+  url?: string;
+  metadata?: SanityImageMetadata;
+  source?: SanityAssetSourceData;
+};
+
+export type SanityFileAsset = {
+  _id: string;
+  _type: \\"sanity.fileAsset\\";
+  _createdAt: string;
+  _updatedAt: string;
+  _rev: string;
+  originalFilename?: string;
+  label?: string;
+  title?: string;
+  description?: string;
+  altText?: string;
+  sha1hash?: string;
+  extension?: string;
+  mimeType?: string;
+  size?: number;
+  assetId?: string;
+  uploadId?: string;
+  path?: string;
+  url?: string;
+  source?: SanityAssetSourceData;
+};
+
+export type SanityImageCrop = {
+  top?: number;
+  bottom?: number;
+  left?: number;
+  right?: number;
+  _type: \\"sanity.imageCrop\\";
+};
+
+export type SanityImageHotspot = {
+  x?: number;
+  y?: number;
+  height?: number;
+  width?: number;
+  _type: \\"sanity.imageHotspot\\";
+};
+
+export type SanityImageMetadata = {
+  location?: Geopoint;
+  dimensions?: SanityImageDimensions;
+  palette?: SanityImagePalette;
+  lqip?: string;
+  blurHash?: string;
+  hasAlpha?: boolean;
+  isOpaque?: boolean;
+  _type: \\"sanity.imageMetadata\\";
+};
+
+export type SanityImageDimensions = {
+  height?: number;
+  width?: number;
+  aspectRatio?: number;
+  _type: \\"sanity.imageDimensions\\";
+};
+
+export type SanityImagePalette = {
+  darkMuted?: SanityImagePaletteSwatch;
+  lightVibrant?: SanityImagePaletteSwatch;
+  darkVibrant?: SanityImagePaletteSwatch;
+  vibrant?: SanityImagePaletteSwatch;
+  dominant?: SanityImagePaletteSwatch;
+  lightMuted?: SanityImagePaletteSwatch;
+  muted?: SanityImagePaletteSwatch;
+  _type: \\"sanity.imagePalette\\";
+};
+
+export type SanityImagePaletteSwatch = {
+  background?: string;
+  foreground?: string;
+  population?: number;
+  title?: string;
+  _type: \\"sanity.imagePaletteSwatch\\";
+};"
+`;
+
+exports[`generateSchemaTypes should generate correct types for document schema with inline fields 1`] = `
+"export type myObject = {
+  inlineField: {
+    test: string;
+  } & Test;
+  unknownObject: unknown;
+  arrayField: Array<string>;
+  unionField: {
+    test: string;
+  } | string | Test;
+};"
+`;
+
+exports[`generateSchemaTypes should generate correct types for document schema with inline fields 2`] = `"export type someOtherType = MyObject;"`;

packages/@sanity/codegen/src/typescript/__tests__/findQueriesInPath.test.ts

@@ -0,0 +1,22 @@
+import assert from 'node:assert'
+import path from 'node:path'
+
+import {describe, expect, test} from '@jest/globals'
+
+import {findQueriesInPath} from '../findQueriesInPath'
+
+describe('findQueriesInPath', () => {
+  test('should throw an error if the query name already exists', async () => {
+    const stream = findQueriesInPath({
+      path: path.join(__dirname, 'fixtures', '{source1,source2}.ts'),
+    })
+    await stream.next()
+    const result = await stream.next()
+    if (!result.value) {
+      throw new Error('Expected to yield a result')
+    }
+    expect(result.value.type).toBe('error')
+    assert(result.value.type === 'error') // workaround for TS
+    expect(result.value.error.message).toMatch(/Duplicate query name found:/)
+  })
+})