feat: make internal app URLs permalinks (#329)

middleware/auth.ts

@@ -1,6 +1,6 @@
-export default defineNuxtRouteMiddleware((from) => {
+export default defineNuxtRouteMiddleware((to) => {
   if (!currentUser.value)
     return navigateTo('/public')
-  else if (from.path === '/')
+  if (to.path === '/')
     return navigateTo('/home')
 })

middleware/permalink.global.ts

@@ -0,0 +1,51 @@
+export default defineNuxtRouteMiddleware(async (to, from) => {
+  // Skip running middleware before masto has been initialised
+  if (!useNuxtApp().$masto)
+    return
+
+  if (!('server' in to.params))
+    return
+
+  if (!currentUser.value) {
+    if (from.params.server !== to.params.server) {
+      await loginTo({
+        server: to.params.server as string,
+      })
+    }
+    return
+  }
+
+  // No need to additionally resolve an id if we're already logged in
+  if (currentUser.value.server === to.params.server)
+    return
+
+  // Tags don't need to be redirected to a local id
+  if (to.params.tag)
+    return
+
+  // Handle redirecting to new permalink structure for users with old links
+  if (!to.params.server) {
+    return {
+      ...to,
+      params: {
+        ...to.params,
+        server: currentUser.value.server,
+      },
+    }
+  }
+
+  try {
+    // If we're logged in, search for the local id the account or status corresponds to
+    const { value } = await useMasto().search({ q: `https:/${to.fullPath}`, resolve: true, limit: 1 }).next()
+
+    const { accounts, statuses } = value
+    if (statuses[0])
+      return getStatusRoute(statuses[0])
+
+    if (accounts[0])
+      return getAccountRoute(accounts[0])
+  }
+  catch {}
+
+  return '/home'
+})