From 33839479e269bed905f9eefc374060b9d3ee7e19 Mon Sep 17 00:00:00 2001
From: "Thomas F. K. Jorna" <hello@tefkah.com>
Date: Tue, 5 Oct 2021 12:35:40 +0200
Subject: feat(preview): filesystem basics in place

---
 components/BehaviorPanel.tsx         |  0
 components/Sidebar/Link.tsx          | 11 ++++++++
 components/Sidebar/index.tsx         |  5 ++++
 components/Tweaks/BehaviorPanel.tsx  | 17 ++++++++++++
 index.tsx                            |  0
 pages/filesystemtest.tsx             | 52 ++++++++++++++++++++++++++++++++++++
 util/FileSystem.tsx                  |  0
 util/checkFileSystemCompatibility.ts |  3 +++
 8 files changed, 88 insertions(+)
 create mode 100644 components/BehaviorPanel.tsx
 create mode 100644 components/Sidebar/Link.tsx
 create mode 100644 index.tsx
 create mode 100644 pages/filesystemtest.tsx
 create mode 100644 util/FileSystem.tsx
 create mode 100644 util/checkFileSystemCompatibility.ts

diff --git a/components/BehaviorPanel.tsx b/components/BehaviorPanel.tsx
new file mode 100644
index 0000000..e69de29
diff --git a/components/Sidebar/Link.tsx b/components/Sidebar/Link.tsx
new file mode 100644
index 0000000..789873a
--- /dev/null
+++ b/components/Sidebar/Link.tsx
@@ -0,0 +1,11 @@
+import { Text } from '@chakra-ui/react'
+
+export interface LinkProps {
+  id: string
+}
+
+export const Link = (props: LinkProps) => {
+  const { id } = props
+
+  return <Text>{id}</Text>
+}
diff --git a/components/Sidebar/index.tsx b/components/Sidebar/index.tsx
index 05f5720..4f314da 100644
--- a/components/Sidebar/index.tsx
+++ b/components/Sidebar/index.tsx
@@ -51,6 +51,11 @@ const Sidebar = (props: SidebarProps) => {
         console.log(res)
         setPreviewText(res)
       })
+      .catch((e) => {
+        setPreviewText(
+          'Could not fetch the text for some reason, sorry!\n\n This can happen because you have an id with forward slashes (/) in it.',
+        )
+      })
   }
 
   useEffect(() => {
diff --git a/components/Tweaks/BehaviorPanel.tsx b/components/Tweaks/BehaviorPanel.tsx
index 0c22e1a..27906c5 100644
--- a/components/Tweaks/BehaviorPanel.tsx
+++ b/components/Tweaks/BehaviorPanel.tsx
@@ -10,12 +10,15 @@ import {
   StackDivider,
   VStack,
   Text,
+  Box,
 } from '@chakra-ui/react'
 import React from 'react'
 import { initialBehavior, initialMouse } from '../config'
 import { InfoTooltip } from './InfoTooltip'
 import { SliderWithInfo } from './SliderWithInfo'
 
+import { checkFileSystemCompatibility } from '../../util/checkFileSystemCompatibility'
+
 export interface BehaviorPanelProps {
   behavior: typeof initialBehavior
   setBehavior: any
@@ -163,6 +166,20 @@ export const BehaviorPanel = (props: BehaviorPanelProps) => {
         onChange={(value) => setBehavior({ ...behavior, zoomPadding: value })}
         infoText="How much to zoom out to accomodate all nodes when changing the view."
       />
+
+      <Box>
+        <Button width="100%" isDisabled={!checkFileSystemCompatibility()}>
+          Grant Filesystem Access
+        </Button>
+        {!checkFileSystemCompatibility() && (
+          <Box bg="gray.600" width="100%" padding={5}>
+            <Text>
+              You are not using a browser compatible with the FileSystem Access API. Only Chromium
+              based browsers are currently supported.
+            </Text>
+          </Box>
+        )}
+      </Box>
     </VStack>
   )
 }
diff --git a/index.tsx b/index.tsx
new file mode 100644
index 0000000..e69de29
diff --git a/pages/filesystemtest.tsx b/pages/filesystemtest.tsx
new file mode 100644
index 0000000..4cadf0e
--- /dev/null
+++ b/pages/filesystemtest.tsx
@@ -0,0 +1,52 @@
+import React, { useEffect, useState } from 'react'
+import { Button } from '@chakra-ui/react'
+
+async function verifyPermission(fileHandle: any, readWrite: any) {
+  const options: any = {}
+  if (readWrite) {
+    options.mode = 'readwrite'
+  }
+  // Check if permission was already granted. If so, return true.
+  if ((await fileHandle.queryPermission(options)) === 'granted') {
+    return true
+  }
+  // Request permission. If the user grants permission, return true.
+  if ((await fileHandle.requestPermission(options)) === 'granted') {
+    return true
+  }
+  // The user didn't grant permission, so return false.
+  return false
+}
+
+export default function Testpage() {
+  const [text, setText] = useState(0)
+  const [dirHandle, setDirhandle] = useState<any>()
+  const [perm, setPerm] = useState(false)
+
+  const pick = async () => {
+    const dirHandle = await window.showDirectoryPicker()
+    console.log(dirHandle)
+    setDirhandle(dirHandle)
+  }
+
+  useEffect(() => {
+    ;(async () => {
+      console.log(dirHandle)
+      const newFileHandle = dirHandle ? await dirHandle.getFileHandle('inbox.org') : null
+      const file = await newFileHandle.getFile()
+      const ttext = await file.text()
+      setText(ttext)
+      const path = newFileHandle ? await dirHandle.resolve(newFileHandle) : null
+      console.log(path)
+    })()
+  }, [dirHandle])
+
+  return (
+    <div>
+      <Button onClick={() => pick()}> Press </Button>
+      <p>{text}</p>
+      <Button onClick={() => setPerm(verifyPermission(dirHandle, true))}>Check permission</Button>
+      <p>{perm ? '👍' : '👎'}</p>
+    </div>
+  )
+}
diff --git a/util/FileSystem.tsx b/util/FileSystem.tsx
new file mode 100644
index 0000000..e69de29
diff --git a/util/checkFileSystemCompatibility.ts b/util/checkFileSystemCompatibility.ts
new file mode 100644
index 0000000..a96b68e
--- /dev/null
+++ b/util/checkFileSystemCompatibility.ts
@@ -0,0 +1,3 @@
+export const checkFileSystemCompatibility = () => {
+  return typeof window.showDirectoryPicker !== 'undefined'
+}
-- 
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