From 791c8f25d86606becc71c257112f6761b30925dc Mon Sep 17 00:00:00 2001
From: Shams mosowi <shams.mosowi@gmail.com>
Date: Tue, 22 Dec 2020 13:23:56 +0800
Subject: [PATCH] check for basic permissions on the home page

---
 www/src/hooks/useDoc.ts | 45 ++++++++++++++++++++++++-----------------
 www/src/pages/Home.tsx  | 19 ++++++++++++++---
 2 files changed, 43 insertions(+), 21 deletions(-)

diff --git a/www/src/hooks/useDoc.ts b/www/src/hooks/useDoc.ts
index 683a3450..ec8bb1a9 100644
--- a/www/src/hooks/useDoc.ts
+++ b/www/src/hooks/useDoc.ts
@@ -12,31 +12,35 @@ const documentInitialState = {
   doc: null,
   ref: null,
   loading: true,
-};
-
-const documentReducer = (prevState: any, newProps: any) => {
-  switch (newProps.action) {
-    case DocActions.clear:
-      return documentInitialState;
-    case DocActions.update:
-      // takes data object form the dispatcher and updates doc
-
-      prevState.ref.set({ ...newProps.data }, { merge: true });
-
-      return { ...prevState, doc: { ...prevState.doc, ...newProps.data } };
-    case DocActions.delete:
-      prevState.ref.delete();
-      return null;
-    default:
-      return { ...prevState, ...newProps };
-  }
+  error:null
 };
 
 const useDoc = (initialOverrides: any) => {
+  const documentReducer = (prevState: any, newProps: any) => {
+    switch (newProps.action) {
+      case DocActions.clear:
+        return documentInitialState;
+      case DocActions.update:
+        // takes data object form the dispatcher and updates doc
+  
+        (prevState.ref?prevState.ref:db.doc(prevState.path)).set({ ...newProps.data }, { merge: true }).then((result: any) => {
+        }).catch((error)=>{
+          console.log(error);
+          documentDispatch({error})
+        });
+        return { ...prevState, doc: { ...prevState.doc, ...newProps.data } };
+      case DocActions.delete:
+        prevState.ref.delete();
+        return null;
+      default:
+        return { ...prevState, ...newProps };
+    }
+  };
   const [documentState, documentDispatch] = useReducer(documentReducer, {
     ...documentInitialState,
     ...initialOverrides,
   });
+  
   const setDocumentListner = () => {
     documentDispatch({ prevPath: documentState.path });
     const unsubscribe = db.doc(documentState.path).onSnapshot((snapshot) => {
@@ -55,6 +59,11 @@ const useDoc = (initialOverrides: any) => {
           loading: false,
         });
       }
+    },(error)=>{
+      documentDispatch({
+        loading: false,
+        error
+      });
     });
     documentDispatch({ unsubscribe });
   };
diff --git a/www/src/pages/Home.tsx b/www/src/pages/Home.tsx
index 74ae246d..3695e9eb 100644
--- a/www/src/pages/Home.tsx
+++ b/www/src/pages/Home.tsx
@@ -1,4 +1,4 @@
-import React, { useState } from "react";
+import React, { useState ,useEffect} from "react";
 import _groupBy from "lodash/groupBy";
 import _find from "lodash/find";
 
@@ -26,11 +26,11 @@ import StyledCard from "components/StyledCard";
 import routes from "constants/routes";
 import { useFiretableContext } from "contexts/FiretableContext";
 import { useAppContext } from "contexts/AppContext";
-import { DocActions } from "hooks/useDoc";
+import useDoc,{ DocActions } from "hooks/useDoc";
 import TableSettingsDialog, {
   TableSettingsDialogModes,
 } from "components/TableSettings";
-
+import EmptyState from 'components/EmptyState';
 const useStyles = makeStyles((theme) =>
   createStyles({
     "@global": {
@@ -123,6 +123,19 @@ export default function HomePage() {
 
   const [open, setOpen] = useState(false);
 
+
+  const [settingsDocState,settingsDocDispatch] = useDoc({path:'_FIRETABLE_/settings'})
+  useEffect(() => {
+    if(!settingsDocState.loading && !settingsDocState.doc){
+      settingsDocDispatch({action:DocActions.update,data:{createdAt:new Date()}});
+    }
+  },[settingsDocState])
+  if (settingsDocState.error?.code === "permission-denied") {
+    return <EmptyState fullScreen message="Access Denied" description={<><Typography variant="overline">You don't current have access to firetable, please contact this project's owner</Typography>
+    <Typography variant='body2'>If you are the project owner please follow the instructions <a href="https://github.com/AntlerVC/firetable/wiki/Role-Based-Security-Rules" target="_blank">here</a> to setup the project rules.</Typography>
+    </>}/>
+  }
+
   const TableCard = ({ table }) => {
     const checked = Boolean(_find(favs, table));
     return (