feat: improve upload flow (#240)

* feat: separate flow for folder and file uploads

* feat: add basic index document detection

* feat(wip): separate preview step

* fix: fix kb and mb units

* feat: add post upload summary, add some styling

* feat: upload flow

* fix: change element order and add conditional rendering

* refactor: remove unused variables for now

* fix: put back stamp creation to stamp page

* refactor: rework postage stamps and grid

* feat: add website and folder icons

* feat: add asset preview to download flow, add file icon

* feat: add basic design to postage stamp selection dialog

* feat: add web icon, shorten stamp in preview

* feat: extract swarm hash in download flow

* fix: extract swarmbutton and solve icon hover and focus color

* fix: always show buy button on stamp page

* refactor: downgrade

* refactor: speed up icon transition

* style: improve download buttons

* style: change [back to upload] icon

* style: add spacing before swarm gateway text

* style: post upload summary spacing

* refactor: drop verticalspacing and use box

* refactor: merge icons to one component

* refactor: use conditions instead of weird assignment

* docs: explain filter(x => x)

* refactor: generalize capacity

* refactor: avoid passing arrow functions

* refactor: get rid of PaperGridContainer and Container

* fix: fix hover color for postage stamps

* feat: add disabled and loading state to buttons

* fix: make drag and drop work for websites

* feat: handle folders and non existing hashes

* fix: provide empty default value to select to avoid console warning

* style: remove body2 font variants

* fix: remove typo

* feat: disable folder upload, add website upload

* fix: disable showPreviews to avoid flickering

* feat(temp): remove folder upload

* fix: remove stuck focus on buttons even after rendering different buttons

* style: merge hover and focus styles, fix safari text wrap issue

* style: remove dropbox outline in safari

src/pages/stamps/index.tsx

@@ -1,13 +1,13 @@
-import { ReactElement, useContext, useEffect } from 'react'
+import { CircularProgress, Container } from '@material-ui/core'
 import { createStyles, makeStyles } from '@material-ui/core/styles'
-import { Container, CircularProgress } from '@material-ui/core'
-
-import StampsTable from './StampsTable'
-import CreatePostageStampModal from './CreatePostageStampModal'
-
-import { Context as StampsContext } from '../../providers/Stamps'
+import { ReactElement, useContext, useEffect, useState } from 'react'
+import { PlusSquare } from 'react-feather'
+import { SwarmButton } from '../../components/SwarmButton'
 import TroubleshootConnectionCard from '../../components/TroubleshootConnectionCard'
 import { Context as BeeContext } from '../../providers/Bee'
+import { Context as StampsContext } from '../../providers/Stamps'
+import { CreatePostageStampModal } from './CreatePostageStampModal'
+import StampsTable from './StampsTable'
 
 const useStyles = makeStyles(() =>
   createStyles({
@@ -25,8 +25,11 @@ const useStyles = makeStyles(() =>
   }),
 )
 
-export default function Accounting(): ReactElement {
+export default function Stamp(): ReactElement {
   const classes = useStyles()
+
+  const [isBuyingStamp, setBuyingStamp] = useState(false)
+
   const { stamps, isLoading, error, start, stop } = useContext(StampsContext)
   const { status } = useContext(BeeContext)
 
@@ -49,7 +52,11 @@ export default function Accounting(): ReactElement {
       {!error && (
         <>
           <div className={classes.actions}>
-            <CreatePostageStampModal />
+            {isBuyingStamp ? <CreatePostageStampModal onClose={() => setBuyingStamp(false)} /> : null}
+
+            <SwarmButton onClick={() => setBuyingStamp(true)} iconType={PlusSquare}>
+              Buy New Postage Stamp
+            </SwarmButton>
             <div style={{ height: '5px' }}>{isLoading && <CircularProgress />}</div>
           </div>
           <StampsTable postageStamps={stamps} />