From 60806495c5d88e395b8427ad4e842c258683d931 Mon Sep 17 00:00:00 2001
From: shellscape <andrew@shellscape.org>
Date: Sat, 23 Nov 2024 10:12:25 -0500
Subject: [PATCH] feat(jsx-email,app-preview): --base-path flag, deploy preview
 to sub path

---
 apps/preview/app/src/routes.tsx                 |  2 +-
 packages/jsx-email/src/cli/commands/preview.mts | 12 +++++++-----
 packages/jsx-email/src/cli/commands/types.mts   |  5 +++--
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/apps/preview/app/src/routes.tsx b/apps/preview/app/src/routes.tsx
index fa874f09..8a1afa85 100644
--- a/apps/preview/app/src/routes.tsx
+++ b/apps/preview/app/src/routes.tsx
@@ -48,7 +48,7 @@ export const getRouter = (templates: Record<string, TemplateData>) => {
         </Layout>
       ),
       errorElement: <Error />,
-      path: '/'
+      path: import.meta.env.VITE_JSXEMAIL_BASE_PATH || '/'
     },
     ...routes
   ]);
diff --git a/packages/jsx-email/src/cli/commands/preview.mts b/packages/jsx-email/src/cli/commands/preview.mts
index b2eccdaa..3f43de31 100644
--- a/packages/jsx-email/src/cli/commands/preview.mts
+++ b/packages/jsx-email/src/cli/commands/preview.mts
@@ -35,6 +35,7 @@ Starts the preview server for a directory of email templates
   $ email preview <template dir path> [...options]
 
 {underline Options}
+  --base-path   Default: /. Defines the path on a server that the preview app will be deployed to or available at
   --build-path  An absolute path. When set, builds the preview as a deployable app and saves to disk
   --exclude     A micromatch glob pattern that specifies files to exclude from the preview
   --host        Allow thew preview server to listen on all addresses (0.0.0.0)
@@ -46,15 +47,15 @@ Starts the preview server for a directory of email templates
   $ email preview ./src/templates --build-path /tmp/email-preview
 `;
 
-const buildDeployable = async ({ targetPath, argv }: PreviewCommonParams) => {
-  const { buildPath } = argv;
+const buildDeployable = async ({ argv, targetPath }: PreviewCommonParams) => {
+  const { basePath = '/', buildPath } = argv;
   const common = { argv, targetPath };
   await prepareBuild(common);
   const config = await getConfig(common);
 
   await viteBuild({
     ...config,
-    base: '/',
+    base: basePath,
     build: {
       minify: false,
       outDir: buildPath,
@@ -73,17 +74,18 @@ const buildDeployable = async ({ targetPath, argv }: PreviewCommonParams) => {
   });
 };
 
-const getConfig = async ({ targetPath, argv }: PreviewCommonParams) => {
+const getConfig = async ({ argv, targetPath }: PreviewCommonParams) => {
   const buildPath = await getTempPath('preview');
   // @ts-ignore
   const root = join(dirname(fileURLToPath(import.meta.resolve('@jsx-email/app-preview'))), 'app');
-  const { host = false, port = 55420 } = argv;
+  const { basePath = '/', host = false, port = 55420 } = argv;
   // Note: The trailing slash is required
   const relativePath = `${normalizePath(relative(root, targetPath))}/`;
 
   newline();
   log.info(chalk`{blue Starting build...}`);
 
+  process.env.VITE_JSXEMAIL_BASE_PATH = basePath;
   process.env.VITE_JSXEMAIL_BUILD_PATH = `${normalizePath(relative(root, buildPath))}/`;
   process.env.VITE_JSXEMAIL_RELATIVE_PATH = relativePath;
 
diff --git a/packages/jsx-email/src/cli/commands/types.mts b/packages/jsx-email/src/cli/commands/types.mts
index 89716e3a..bd654a01 100644
--- a/packages/jsx-email/src/cli/commands/types.mts
+++ b/packages/jsx-email/src/cli/commands/types.mts
@@ -1,11 +1,12 @@
 import type React from 'react';
 import { boolean, number, object, optional, string, union, type Output as Infer } from 'valibot';
 
-export type CommandFn = (flags: Flags, inputs: string[]) => Promise<boolean>;
-
 export type Flags = Record<string, string | boolean | undefined>;
 
+export type CommandFn = (flags: Flags, inputs: string[]) => Promise<boolean>;
+
 export const PreviewCommandOptionsStruct = object({
+  basePath: optional(string()),
   buildPath: optional(string()),
   exclude: optional(string()),
   host: optional(boolean()),