feat(dashboard, ui): Support TypeScript in the playground

.changeset/orange-items-remember.md

@@ -0,0 +1,6 @@
+---
+'@lagon/dashboard': patch
+'@lagon/ui': patch
+---
+
+feat: add playground typescript

crates/cli/src/commands/deploy.rs

@@ -29,6 +29,7 @@ struct CreateFunctionRequest {
     domains: Vec<String>,
     env: Vec<String>,
     cron: Option<String>,
+    platform: String,
 }
 
 #[derive(Deserialize, Debug)]
@@ -130,6 +131,7 @@ pub async fn deploy(
                             domains: Vec::new(),
                             env: Vec::new(),
                             cron: None,
+                            platform: "CLI".into(),
                         },
                     )
                     .await?;

packages/dashboard/lib/api/deployments.ts

@@ -397,6 +397,21 @@ async function streamToString(stream: Readable): Promise<string> {
 }
 
 export async function getDeploymentCode(deploymentId: string) {
+  try {
+    const tsContent = await s3.send(
+      new GetObjectCommand({
+        Bucket: process.env.S3_BUCKET,
+        Key: `${deploymentId}.ts`,
+      }),
+    );
+
+    if (tsContent.Body instanceof Readable) {
+      return streamToString(tsContent.Body);
+    }
+  } catch (e) {
+    console.warn(`${deploymentId} haven't ts file, e: ${(e as Error).message}`);
+  }
+
   const content = await s3.send(
     new GetObjectCommand({
       Bucket: process.env.S3_BUCKET,

packages/dashboard/lib/constants.ts

@@ -44,3 +44,7 @@ export type Regions = keyof typeof REGIONS;
 export const DEFAULT_FUNCTION = `export function handler(request) {
   return new Response("Hello World!")
 }`;
+
+export const DEFAULT_TS_FUNCTION = `export function handler(request: Request) {
+  return new Response("Hello World!")
+}`;

packages/dashboard/lib/hooks/useEsbuild.ts

@@ -0,0 +1,124 @@
+import * as esbuild from 'esbuild-wasm';
+import { Plugin, Loader } from 'esbuild-wasm';
+import { useCallback, useEffect, useState } from 'react';
+
+type EsbuildFileSystem = Map<
+  string,
+  {
+    content: string;
+  }
+>;
+
+const PROJECT_ROOT = '/project/';
+
+const RESOLVE_EXTENSIONS = ['.tsx', '.ts', '.jsx', '.js', '.css', '.json'];
+
+const extname = (path: string): string => {
+  const m = /(\.[a-zA-Z0-9]+)$/.exec(path);
+  return m ? m[1] : '';
+};
+
+const inferLoader = (p: string): Loader => {
+  const ext = extname(p);
+  if (RESOLVE_EXTENSIONS.includes(ext)) {
+    return ext.slice(1) as Loader;
+  }
+  if (ext === '.mjs' || ext === '.cjs') {
+    return 'js';
+  }
+  return 'text';
+};
+
+const resolvePlugin = (files: EsbuildFileSystem): Plugin => {
+  return {
+    name: 'resolve',
+    setup(build) {
+      build.onResolve({ filter: /.*/ }, async args => {
+        if (args.path.startsWith(PROJECT_ROOT)) {
+          return {
+            path: args.path,
+          };
+        }
+      });
+
+      build.onLoad({ filter: /.*/ }, args => {
+        if (args.path.startsWith(PROJECT_ROOT)) {
+          const name = args.path.replace(PROJECT_ROOT, '');
+          const file = files.get(name);
+          if (file) {
+            return {
+              contents: file.content,
+              loader: inferLoader(args.path),
+            };
+          }
+        }
+      });
+    },
+  };
+};
+
+export enum ESBuildStatus {
+  Success,
+  Fail,
+  Loading,
+}
+
+class EsBuildSingleton {
+  static isFirst = true;
+  static getIsFirst = () => {
+    if (EsBuildSingleton.isFirst) {
+      EsBuildSingleton.isFirst = false;
+      return true;
+    }
+    return EsBuildSingleton.isFirst;
+  };
+}
+
+export const useEsbuild = () => {
+  const [esbuildStatus, setEsbuildStatus] = useState(ESBuildStatus.Loading);
+  const [isEsbuildLoading, setIsEsbuildLoading] = useState(true);
+
+  // React.StrictMode will cause useEffect to run twice
+  const loadEsbuild = useCallback(async () => {
+    try {
+      if (EsBuildSingleton.getIsFirst()) {
+        await esbuild.initialize({
+          wasmURL: `https://esm.sh/esbuild-wasm@0.18.7/esbuild.wasm`,
+        });
+      }
+
+      setEsbuildStatus(ESBuildStatus.Success);
+    } catch (e) {
+      setEsbuildStatus(ESBuildStatus.Fail);
+      console.error(e);
+    } finally {
+      setIsEsbuildLoading(false);
+    }
+  }, [isEsbuildLoading, esbuildStatus]);
+
+  // these options should match the ones in crates/cli/src/utils/deployments.rs
+  const build = useCallback(
+    (files: EsbuildFileSystem) =>
+      esbuild.build({
+        entryPoints: [`${PROJECT_ROOT}index.ts`],
+        outdir: '/dist',
+        format: 'esm',
+        write: false,
+        bundle: true,
+        target: 'esnext',
+        platform: 'browser',
+        conditions: ['lagon', 'worker'],
+        define: { 'process.env.NODE_ENV': 'production' },
+        plugins: [resolvePlugin(files)],
+      }),
+    [isEsbuildLoading, esbuildStatus],
+  );
+
+  useEffect(() => {
+    loadEsbuild();
+  }, []);
+
+  return { isEsbuildLoading, esbuildStatus, build };
+};
+
+export default useEsbuild;

packages/dashboard/lib/trpc/deploymentsRouter.ts

@@ -25,6 +25,7 @@ export const deploymentsRouter = (t: T) =>
         z.object({
           functionId: z.string(),
           functionSize: z.number(),
+          tsSize: z.number(),
           assets: z
             .object({
               name: z.string(),
@@ -67,6 +68,11 @@ export const deploymentsRouter = (t: T) =>
         };
 
         const codeUrl = await getPresignedUrl(`${deployment.id}.js`, input.functionSize);
+
+        let tsCodeUrl: string | undefined;
+        if (input.tsSize > 0) {
+          tsCodeUrl = await getPresignedUrl(`${deployment.id}.ts`, input.tsSize);
+        }
         const assetsUrls: Record<string, string> = {};
 
         await Promise.all(
@@ -80,6 +86,7 @@ export const deploymentsRouter = (t: T) =>
           deploymentId: deployment.id,
           codeUrl,
           assetsUrls,
+          tsCodeUrl,
         };
       }),
     deploymentDeploy: t.procedure

packages/dashboard/lib/trpc/functionsRouter.ts

@@ -102,6 +102,7 @@ export const functionsRouter = (t: T) =>
                 createdAt: 'desc',
               },
             },
+            platform: true,
           },
         });
 
@@ -197,6 +198,7 @@ LIMIT 100`,
             .array()
             .max(ENVIRONMENT_VARIABLES_PER_FUNCTION),
           cron: z.string().nullable(),
+          platform: z.enum(['CLI', 'Playground'] as const).optional(),
         }),
       )
       .mutation(async ({ ctx, input }) => {
@@ -258,6 +260,7 @@ LIMIT 100`,
               },
             },
             cron: input.cron,
+            platform: input.platform ?? 'CLI',
           },
           select: {
             id: true,

packages/dashboard/locales/en.ts

@@ -154,6 +154,8 @@ export default {
   'playground.deploy.success': 'Function deployed successfully.',
   'playground.deploy.error': 'Failed to deploy Function.',
   'playground.reload': 'Reload',
+  'playground.esbuild.error': `Since your browser doesn't support wasm, you can't use typescript.`,
+  'playground.esbuild.loading': 'Initializing esbuild',
 
   'function.nav.playground': 'Playground',
   'function.nav.overview': 'Overview',

packages/dashboard/locales/fr.ts

@@ -168,6 +168,8 @@ export default defineLocale({
   'function.nav.logs': 'Logs',
   'function.nav.settings': 'Paramètres',
   'function.nav.cron': 'Cron',
+  'playground.esbuild.error': `Étant donné que votre navigateur ne prend pas en charge wasm, vous ne pouvez pas utiliser le typescript.`,
+  'playground.esbuild.loading': `esbuild est en cours d'initialisation`,
 
   'functions.overview.usage': 'Utilisation & Limites',
   'functions.overview.usage.requests': 'Requêtes',

packages/dashboard/package.json

@@ -41,6 +41,7 @@
     "@trpc/react-query": "^10.18.0",
     "@trpc/server": "^10.18.0",
     "clickhouse": "^2.6.0",
+    "esbuild-wasm": "0.17.19",
     "cron-parser": "^4.8.1",
     "cronstrue": "^2.27.0",
     "final-form": "^4.20.7",

packages/dashboard/pages/functions/[functionId].tsx

@@ -39,11 +39,15 @@ const Function = () => {
       ) : null}
       <Nav defaultValue="overview">
         <Nav.List
-          rightItem={
-            <Button href={`/playground/${func?.id}`} leftIcon={<PlayIcon className="h-4 w-4" />}>
-              {t('playground')}
-            </Button>
-          }
+          {...(func?.platform === 'Playground'
+            ? {
+                rightItem: (
+                  <Button href={`/playground/${func?.id}`} leftIcon={<PlayIcon className="h-4 w-4" />}>
+                    {t('playground')}
+                  </Button>
+                ),
+              }
+            : {})}
         >
           <Nav.Link value="overview">{t('overview')}</Nav.Link>
           <Nav.Link value="deployments">{t('deployments')}</Nav.Link>

packages/dashboard/pages/index.tsx

@@ -6,7 +6,7 @@ import { trpc } from 'lib/trpc';
 import { useRouter } from 'next/router';
 import { getLocaleProps, useScopedI18n } from 'locales';
 import { GetStaticProps } from 'next';
-import { DEFAULT_FUNCTION } from 'lib/constants';
+import { DEFAULT_FUNCTION, DEFAULT_TS_FUNCTION } from 'lib/constants';
 
 const Home = () => {
   const createFunction = trpc.functionCreate.useMutation();
@@ -30,21 +30,32 @@ const Home = () => {
               domains: [],
               env: [],
               cron: null,
+              platform: 'Playground',
             });
 
             const deployment = await createDeployment.mutateAsync({
               functionId: func.id,
               functionSize: new TextEncoder().encode(DEFAULT_FUNCTION).length,
+              tsSize: new TextEncoder().encode(DEFAULT_TS_FUNCTION).length,
               assets: [],
             });
 
-            await fetch(deployment.codeUrl, {
-              method: 'PUT',
-              headers: {
-                'Content-Type': 'text/javascript',
-              },
-              body: DEFAULT_FUNCTION,
-            });
+            await Promise.all([
+              fetch(deployment.codeUrl, {
+                method: 'PUT',
+                headers: {
+                  'Content-Type': 'text/javascript',
+                },
+                body: DEFAULT_FUNCTION,
+              }),
+              fetch(deployment.tsCodeUrl!, {
+                method: 'PUT',
+                headers: {
+                  'Content-Type': 'text/javascript',
+                },
+                body: DEFAULT_TS_FUNCTION,
+              }),
+            ]);
 
             await deployDeployment.mutateAsync({
               functionId: func.id,