From 4a2c632dc883ab0b1bb19c077d8527863f069126 Mon Sep 17 00:00:00 2001
From: Tom Meagher <tom@meagher.co>
Date: Fri, 9 Feb 2024 14:14:19 -0500
Subject: [PATCH] feat(dev): show frame routes

---
 src/dev/components.tsx | 47 +++++++++++++++++++++++++++++++++++-------
 src/dev/utils.ts       | 12 +++++++++++
 src/farc.tsx           | 12 ++++++++---
 3 files changed, 61 insertions(+), 10 deletions(-)

diff --git a/src/dev/components.tsx b/src/dev/components.tsx
index fb42ef85..01385324 100644
--- a/src/dev/components.tsx
+++ b/src/dev/components.tsx
@@ -11,15 +11,16 @@ import { type State } from './utils.js'
 export type AppProps = {
   baseUrl: string
   frame: FrameType
+  routes: readonly string[]
   state: State
 }
 
 export function App(props: AppProps) {
-  const { baseUrl, frame, state } = props
+  const { baseUrl, frame, routes, state } = props
   return (
     <div class="flex flex-col gap-2 p-4">
       <Header />
-      <Preview {...{ baseUrl, frame, state }} />
+      <Preview {...{ baseUrl, frame, routes, state }} />
     </div>
   )
 }
@@ -27,21 +28,25 @@ export function App(props: AppProps) {
 type PreviewProps = {
   baseUrl: string
   frame: FrameType
+  routes: readonly string[]
   state: State
 }
 
 export function Preview(props: PreviewProps) {
-  const { baseUrl, frame, state } = props
+  const { baseUrl, frame, routes, state } = props
   const hxTarget = 'preview'
   return (
     <form
-      id={hxTarget}
+      class="flex flex-col gap-2"
       hx-post="/dev"
       hx-swap="innerHTML"
       hx-target={`#${hxTarget}`}
-      class="flex flex-col gap-2"
+      id={hxTarget}
     >
-      <Frame {...{ ...frame, baseUrl }} />
+      <div class="flex flex-row gap-2">
+        <Frame {...{ ...frame, baseUrl }} />
+        <Navigator {...{ baseUrl, routes }} />
+      </div>
       <Inspector {...{ frame, state }} />
     </form>
   )
@@ -196,6 +201,30 @@ const redirectIcon = (
   </svg>
 )
 
+type NavigatorProps = {
+  baseUrl: string
+  routes: readonly string[]
+}
+
+function Navigator(props: NavigatorProps) {
+  const { baseUrl, routes } = props
+  const url = new URL(baseUrl)
+  return (
+    <div class="flex flex-col gap-1">
+      {routes.map((route) => (
+        <a
+          class="font-mono text-xs. whitespace-nowrap"
+          key={route}
+          href={route === '/' ? '/dev' : `${route}/dev`}
+        >
+          {route === '/' ? '/' : route}
+          {url.pathname === route ? ' ▲' : ''}
+        </a>
+      ))}
+    </div>
+  )
+}
+
 type InspectorProps = {
   frame: FrameType
   state: {
@@ -308,7 +337,9 @@ async function Inspector(props: InspectorProps) {
   )
 }
 
-function Header() {
+type HeaderProps = {}
+
+function Header(_props: HeaderProps) {
   return (
     <header class="flex text-xs gap-2">
       <span>𝑭𝒂𝒓𝒄 ▶︎</span>
@@ -493,6 +524,7 @@ export function DevStyles() {
     .border-t-0 { border-top-width: 0; }
     .cursor-pointer { cursor: pointer; }
     .font-bold { font-weight: 700; }
+    .font-mono { font-family: monospace; }
     .flex { display: flex; }
     .flex-col { flex-direction: column; }
     .flex-row { flex-direction: row; }
@@ -530,6 +562,7 @@ export function DevStyles() {
     .text-sm { font-size: 0.875rem; }
     .text-xs { font-size: 0.75rem; }
     .w-full { width: 100%; }
+    .whitespace-nowrap { white-space: nowrap; }
 
     .text-fg2 { color: var(--fg2); }
 
diff --git a/src/dev/utils.ts b/src/dev/utils.ts
index 6d8c06d7..f3a5aff2 100644
--- a/src/dev/utils.ts
+++ b/src/dev/utils.ts
@@ -1,4 +1,6 @@
 import { Window } from 'happy-dom'
+import { inspectRoutes } from 'hono/dev'
+
 import {
   type FrameContext,
   type FrameImageAspectRatio,
@@ -219,3 +221,13 @@ export function htmlToFrame(html: string) {
     title: properties.title,
   } satisfies Frame
 }
+
+export function getFrameRoutes(routes: ReturnType<typeof inspectRoutes>) {
+  const frameRoutes = []
+  for (const route of routes) {
+    if (route.isMiddleware) continue
+    if (route.method !== 'ALL') continue
+    frameRoutes.push(route.path)
+  }
+  return frameRoutes
+}
diff --git a/src/farc.tsx b/src/farc.tsx
index 2d09bd22..cf69f34f 100644
--- a/src/farc.tsx
+++ b/src/farc.tsx
@@ -10,9 +10,10 @@ import { Hono } from 'hono'
 import { ImageResponse } from 'hono-og'
 import { jsxRenderer } from 'hono/jsx-renderer'
 import { type Env, type Schema } from 'hono/types'
+import { inspectRoutes } from 'hono/dev'
 
 import { App, DevStyles, Preview } from './dev/components.js'
-import { htmlToFrame, htmlToState } from './dev/utils.js'
+import { getFrameRoutes, htmlToFrame, htmlToState } from './dev/utils.js'
 import {
   type FrameContext,
   type FrameImageAspectRatio,
@@ -154,9 +155,12 @@ export class Farc<
         const baseUrl = c.req.url.replace('/dev', '')
         const response = await fetch(baseUrl)
         const text = await response.text()
+
         const frame = htmlToFrame(text)
         const state = htmlToState(text)
-        return c.render(<App {...{ baseUrl, frame, state }} />)
+        const routes = getFrameRoutes(inspectRoutes(this))
+
+        return c.render(<App {...{ baseUrl, frame, routes, state }} />)
       })
       .post(async (c) => {
         const baseUrl = c.req.url.replace('/dev', '')
@@ -265,11 +269,13 @@ export class Farc<
           }),
         })
         const text = await response.text()
+
         // TODO: handle redirects
         const frame = htmlToFrame(text)
         const state = htmlToState(text)
+        const routes = getFrameRoutes(inspectRoutes(this))
 
-        return c.render(<Preview {...{ baseUrl, frame, state }} />)
+        return c.render(<Preview {...{ baseUrl, frame, routes, state }} />)
       })
   }
 }