From 1e9e46b8a534d6e8c9213aea01e05b8bf43d6998 Mon Sep 17 00:00:00 2001
From: mike12345567 <me@michaeldrury.co.uk>
Date: Wed, 18 Nov 2020 18:24:12 +0000
Subject: [PATCH] Creating a function for the client to be able to pull in
 client definition from API.

---
 .../server/src/api/controllers/application.js | 51 +++++++++++++++----
 packages/server/src/api/routes/application.js |  1 +
 2 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/packages/server/src/api/controllers/application.js b/packages/server/src/api/controllers/application.js
index dd44bda69a..512299c5c8 100644
--- a/packages/server/src/api/controllers/application.js
+++ b/packages/server/src/api/controllers/application.js
@@ -15,9 +15,11 @@ const {
   DocumentTypes,
   SEPARATOR,
   getPageParams,
+  getScreenParams,
   generatePageID,
   generateScreenID,
 } = require("../../db/utils")
+const { BUILTIN_LEVEL_IDS } = require("../../utilities/security/accessLevels")
 const {
   downloadExtractComponentLibraries,
 } = require("../../utilities/createAppPackage")
@@ -27,6 +29,20 @@ const { cloneDeep } = require("lodash/fp")
 
 const APP_PREFIX = DocumentTypes.APP + SEPARATOR
 
+// utility function, need to do away with this
+async function getMainAndUnauthPage(db) {
+  let pages = await db.allDocs(
+    getPageParams(null, {
+      include_docs: true,
+    })
+  )
+  pages = pages.rows.map(row => row.doc)
+
+  const mainPage = pages.find(page => page.name === PageTypes.MAIN)
+  const unauthPage = pages.find(page => page.name === PageTypes.UNAUTHENTICATED)
+  return { mainPage, unauthPage }
+}
+
 async function createInstance(template) {
   const appId = generateAppID()
 
@@ -67,19 +83,36 @@ exports.fetch = async function(ctx) {
   }
 }
 
+exports.fetchAppDefinition = async function(ctx) {
+  const db = new CouchDB(ctx.params.appId)
+  // TODO: need to get rid of pages here, they shouldn't be needed anymore
+  const { mainPage, unauthPage } = await getMainAndUnauthPage(db)
+  const userAccessLevelId =
+    !ctx.user.accessLevel || !ctx.user.accessLevel._id
+      ? BUILTIN_LEVEL_IDS.PUBLIC
+      : ctx.user.accessLevel._id
+  const correctPage =
+    userAccessLevelId === BUILTIN_LEVEL_IDS.PUBLIC ? unauthPage : mainPage
+  const screens = (
+    await db.allDocs(
+      getScreenParams(correctPage._id, {
+        include_docs: true,
+      })
+    )
+  ).rows.map(row => row.doc)
+  // TODO: need to handle access control here, limit screens to user access level
+  ctx.body = {
+    page: correctPage,
+    screens: screens,
+    libraries: ["@budibase/standard-components"],
+  }
+}
+
 exports.fetchAppPackage = async function(ctx) {
   const db = new CouchDB(ctx.params.appId)
   const application = await db.get(ctx.params.appId)
 
-  let pages = await db.allDocs(
-    getPageParams(null, {
-      include_docs: true,
-    })
-  )
-  pages = pages.rows.map(row => row.doc)
-
-  const mainPage = pages.find(page => page.name === PageTypes.MAIN)
-  const unauthPage = pages.find(page => page.name === PageTypes.UNAUTHENTICATED)
+  const { mainPage, unauthPage } = await getMainAndUnauthPage(db)
   ctx.body = {
     application,
     pages: {
diff --git a/packages/server/src/api/routes/application.js b/packages/server/src/api/routes/application.js
index e3b4ddf6cf..3ee5da058c 100644
--- a/packages/server/src/api/routes/application.js
+++ b/packages/server/src/api/routes/application.js
@@ -6,6 +6,7 @@ const { BUILDER } = require("../../utilities/security/permissions")
 const router = Router()
 
 router
+  .get("/api/:appId/definition", controller.fetchAppDefinition)
   .get("/api/applications", authorized(BUILDER), controller.fetch)
   .get(
     "/api/:appId/appPackage",