Merge pull request #52 from oceanprotocol/feature/price-refactor

refactor price component

package.json

@@ -34,6 +34,7 @@
     "axios": "^0.19.2",
     "classnames": "^2.2.6",
     "date-fns": "^2.15.0",
+    "decimal.js": "^10.2.0",
     "dotenv": "^8.2.0",
     "ethereum-blockies": "github:MyEtherWallet/blockies",
     "filesize": "^6.1.0",

src/components/atoms/Price/index.module.css

@@ -2,6 +2,7 @@
   font-weight: var(--font-weight-bold);
   font-size: var(--font-size-large);
   color: var(--brand-grey-dark);
+  line-height: 1;
 }
 
 .price span:first-child {
@@ -10,6 +11,11 @@
   font-size: var(--font-size-base);
 }
 
+.empty {
+  color: var(--color-secondary);
+  font-weight: var(--font-weight-bold);
+}
+
 .small {
   /* lazy making-conversion-smaller-with-same-markup */
   transform: scale(0.8);

src/components/atoms/Price/index.tsx

@@ -1,20 +1,39 @@
-import React, { ReactElement } from 'react'
+import React, { ReactElement, useState, useEffect } from 'react'
 import classNames from 'classnames/bind'
 import PriceConversion from './Conversion'
 import styles from './index.module.css'
 import { formatCurrency } from '@coingecko/cryptoformat'
+import { useMetadata, useOcean } from '@oceanprotocol/react'
+import { DDO } from '@oceanprotocol/lib'
+import Loader from '../Loader'
+import Tooltip from '../Tooltip'
 
 const cx = classNames.bind(styles)
 
 export default function Price({
-  price,
+  ddo,
   className,
-  small
+  small,
+  setPriceOutside
 }: {
-  price: string // expects price in OCEAN, not wei
+  ddo: DDO
   className?: string
   small?: boolean
+  setPriceOutside?: (price: string) => void
 }): ReactElement {
+  const { chainId } = useOcean()
+  const { getBestPrice } = useMetadata()
+  const [price, setPrice] = useState<string>()
+
+  useEffect(() => {
+    async function init() {
+      const price = await getBestPrice(ddo.dataToken)
+      setPrice(price)
+      setPriceOutside && price !== '' && setPriceOutside(price)
+    }
+    init()
+  }, [chainId])
+
   const styleClasses = cx({
     price: true,
     small: small,
@@ -32,5 +51,14 @@ export default function Price({
     </>
   )
 
-  return <div className={styleClasses}>{displayPrice}</div>
+  return price ? (
+    <div className={styleClasses}>{displayPrice}</div>
+  ) : price === '' ? (
+    <div className={styles.empty}>
+      No price found{' '}
+      <Tooltip content="We could not find a pool for this data set, which can have multiple reasons. Is your wallet connected to the correct network?" />
+    </div>
+  ) : (
+    <Loader message="Retrieving price..." />
+  )
 }

src/components/molecules/AssetTeaser.tsx

@@ -23,17 +23,6 @@ const AssetTeaser: React.FC<AssetTeaserProps> = ({
   const { description } = metadata.additionalInformation
   const isCompute = Boolean(ddo.findServiceByType('compute'))
 
-  const { getBestPrice } = useMetadata(ddo.id)
-  const [price, setPrice] = useState<string>()
-
-  useEffect(() => {
-    async function init() {
-      const price = await getBestPrice(ddo.dataToken)
-      setPrice(price)
-    }
-    init()
-  }, [])
-
   return (
     <article className={styles.teaser}>
       <Link to={`/asset/${ddo.id}`} className={styles.link}>
@@ -47,13 +36,7 @@ const AssetTeaser: React.FC<AssetTeaserProps> = ({
         </div>
 
         <footer className={styles.foot}>
-          {price ? (
-            <Price price={price} small />
-          ) : price === '' ? (
-            'No price found'
-          ) : (
-            <Loader message="Retrieving price..." />
-          )}
+          <Price ddo={ddo} small />
         </footer>
       </Link>
     </article>

src/components/molecules/Wallet/Feedback.tsx

@@ -12,15 +12,20 @@ export declare type Web3Error = {
 }
 
 export default function Web3Feedback({
-  isBalanceInsufficient
+  isBalanceSufficient
 }: {
-  isBalanceInsufficient?: boolean
+  isBalanceSufficient?: boolean
 }): ReactElement {
   const { appConfig } = useSiteMetadata()
   const { account, status, chainId } = useOcean()
   const isOceanConnectionError = status === -1
   const correctNetwork = isCorrectNetwork(chainId)
-  const showFeedback = !account || isOceanConnectionError || !correctNetwork
+  const showFeedback =
+    !account ||
+    isOceanConnectionError ||
+    !correctNetwork ||
+    isBalanceSufficient === false
+
   const desiredNetworkName = appConfig.network.replace(/^\w/, (c: string) =>
     c.toUpperCase()
   )
@@ -29,7 +34,7 @@ export default function Web3Feedback({
     ? 'error'
     : !correctNetwork
     ? 'warning'
-    : account && !isBalanceInsufficient
+    : account && isBalanceSufficient
     ? 'success'
     : 'warning'
 
@@ -40,7 +45,7 @@ export default function Web3Feedback({
     : !correctNetwork
     ? 'Wrong Network'
     : account
-    ? isBalanceInsufficient === true
+    ? isBalanceSufficient === false
       ? 'Insufficient balance'
       : 'Connected to Ocean'
     : 'Something went wrong'
@@ -51,7 +56,7 @@ export default function Web3Feedback({
     ? 'Please try again.'
     : !correctNetwork
     ? `Please connect to ${desiredNetworkName}.`
-    : isBalanceInsufficient === true
+    : isBalanceSufficient === false
     ? 'You do not have enough OCEAN in your wallet to purchase this asset.'
     : 'Something went wrong.'
 

src/components/organisms/AssetActions/Compute.tsx

@@ -1,6 +1,5 @@
-import React, { useState, useEffect, ReactElement } from 'react'
+import React, { useState, ReactElement } from 'react'
 import { DDO } from '@oceanprotocol/lib'
-import compareAsBN, { Comparisson } from '../../../utils/compareAsBN'
 import Loader from '../../atoms/Loader'
 import Web3Feedback from '../../molecules/Wallet/Feedback'
 import Dropzone from '../../atoms/Dropzone'
@@ -18,10 +17,12 @@ import Alert from '../../atoms/Alert'
 
 export default function Compute({
   ddo,
-  price
+  isBalanceSufficient,
+  setPrice
 }: {
   ddo: DDO
-  price: string // in OCEAN, not wei
+  isBalanceSufficient: boolean
+  setPrice: (price: string) => void
 }): ReactElement {
   const { ocean } = useOcean()
   const { compute, isLoading, computeStepText, computeError } = useCompute()
@@ -29,7 +30,6 @@ export default function Compute({
 
   const [isJobStarting, setIsJobStarting] = useState(false)
   const [, setError] = useState('')
-  const [isBalanceSufficient, setIsBalanceSufficient] = useState(false)
   const [computeType, setComputeType] = useState('')
   const [computeContainer, setComputeContainer] = useState({
     entrypoint: '',
@@ -39,25 +39,13 @@ export default function Compute({
   const [algorithmRawCode, setAlgorithmRawCode] = useState('')
   const [isPublished, setIsPublished] = useState(false)
   const [file, setFile] = useState(null)
-  const [isTermsAgreed, setIsTermsAgreed] = useState(true)
-
-  const isFree = price === '0'
 
   const isComputeButtonDisabled =
     isJobStarting ||
     file === null ||
     computeType === '' ||
     !ocean ||
-    !isBalanceSufficient ||
-    !isTermsAgreed
-
-  // useEffect(() => {
-  //   setIsBalanceSufficient(
-  //     isFree ||
-  //       (balance !== null &&
-  //         compareAsBN(balance, fromWei(computeService.cost), Comparisson.gte))
-  //   )
-  // }, [balance])
+    !isBalanceSufficient
 
   const onDrop = async (files: any) => {
     setFile(files[0])
@@ -101,13 +89,7 @@ export default function Compute({
 
   return (
     <div className={styles.compute}>
-      {price ? (
-        <Price price={price} small />
-      ) : price === '' ? (
-        'No price found'
-      ) : (
-        <Loader message="Retrieving price..." />
-      )}
+      <Price ddo={ddo} setPriceOutside={setPrice} />
 
       <div className={styles.info}>
         <div className={styles.selectType}>
@@ -133,7 +115,6 @@ export default function Compute({
               Start job
             </Button>
           </div>
-          {/* <TermsCheckbox onChange={onCheck} /> */}
         </div>
 
         <footer className={styles.feedback}>
@@ -148,7 +129,7 @@ export default function Compute({
               state="success"
             />
           )}
-          <Web3Feedback isBalanceInsufficient={!isBalanceSufficient} />
+          <Web3Feedback isBalanceSufficient={isBalanceSufficient} />
         </footer>
       </div>
     </div>

src/components/organisms/AssetActions/Consume.module.css

@@ -12,16 +12,18 @@
   flex-shrink: 0;
 }
 
-.consume button {
-  margin-left: calc(var(--spacer) / 4);
+.pricewrapper {
+  display: flex;
+  flex-wrap: wrap;
 }
 
-.consume button:first-of-type {
-  margin-left: 0;
+.pricewrapper button {
+  margin-top: calc(var(--spacer) / 2);
+  align-self: flex-end;
 }
 
-.price {
-  margin-bottom: calc(var(--spacer) / 2);
+.pricewrapper > div {
+  min-height: 30px;
 }
 
 .feedback {

src/components/organisms/AssetActions/Consume.tsx

@@ -1,7 +1,6 @@
 import React, { ReactElement } from 'react'
 import { toast } from 'react-toastify'
 import { File as FileMetadata, DDO } from '@oceanprotocol/lib'
-import compareAsBN, { Comparisson } from '../../../utils/compareAsBN'
 import Button from '../../atoms/Button'
 import File from '../../atoms/File'
 import Price from '../../atoms/Price'
@@ -12,21 +11,19 @@ import { useOcean, useConsume } from '@oceanprotocol/react'
 
 export default function Consume({
   ddo,
-  price,
-  file
+  file,
+  isBalanceSufficient,
+  setPrice
 }: {
   ddo: DDO
-  price: string // in OCEAN, not wei
   file: FileMetadata
+  isBalanceSufficient: boolean
+  setPrice: (price: string) => void
 }): ReactElement {
-  const accessService = ddo.findServiceByType('access')
   const { ocean } = useOcean()
   const { consumeStepText, consume, consumeError } = useConsume()
 
-  const isFree = price === '0'
-  // const isBalanceSufficient =
-  //  isFree || compareAsBN(balanceInOcean, fromWei(cost), Comparisson.gte)
-  const isDisabled = !ocean
+  const isDisabled = !ocean || !isBalanceSufficient
 
   if (consumeError) {
     toast.error(consumeError)
@@ -41,7 +38,7 @@ export default function Consume({
         onClick={() => consume(ddo.id, ddo.dataToken, 'access')}
         disabled={isDisabled}
       >
-        {isFree ? 'Download' : 'Buy'}
+        Buy
       </Button>
     )
 
@@ -52,19 +49,13 @@ export default function Consume({
           <File file={file} />
         </div>
         <div className={styles.pricewrapper}>
-          {price ? (
-            <Price price={price} small />
-          ) : price === '' ? (
-            'No price found'
-          ) : (
-            <Loader message="Retrieving price..." />
-          )}
+          <Price ddo={ddo} setPriceOutside={setPrice} />
           <PurchaseButton />
         </div>
       </div>
 
       <footer className={styles.feedback}>
-        <Web3Feedback isBalanceInsufficient />
+        <Web3Feedback isBalanceSufficient={isBalanceSufficient} />
       </footer>
     </aside>
   )

src/components/organisms/AssetActions/index.tsx

@@ -5,7 +5,8 @@ import Consume from './Consume'
 import { MetadataMarket } from '../../../@types/Metadata'
 import { DDO } from '@oceanprotocol/lib'
 import Tabs from '../../atoms/Tabs'
-import { useMetadata } from '@oceanprotocol/react'
+import { useOcean } from '@oceanprotocol/react'
+import compareAsBN from '../../../utils/compareAsBN'
 
 export default function AssetActions({
   metadata,
@@ -14,22 +15,37 @@ export default function AssetActions({
   metadata: MetadataMarket
   ddo: DDO
 }): ReactElement {
-  const { getBestPrice } = useMetadata(ddo.id)
+  const { balance } = useOcean()
   const [price, setPrice] = useState<string>()
-
-  useEffect(() => {
-    async function init() {
-      const price = await getBestPrice(ddo.dataToken)
-      setPrice(price)
-    }
-    init()
-  }, [])
+  const [isBalanceSufficient, setIsBalanceSufficient] = useState<boolean>()
 
   const isCompute = Boolean(ddo.findServiceByType('compute'))
+
+  // Check user balance against price
+  useEffect(() => {
+    if (!price || !balance || !balance.ocean) return
+
+    const isFree = price === '0'
+    setIsBalanceSufficient(isFree ? true : compareAsBN(balance.ocean, price))
+
+    return () => {
+      setIsBalanceSufficient(false)
+    }
+  }, [balance, price])
+
   const UseContent = isCompute ? (
-    <Compute ddo={ddo} price={price} />
+    <Compute
+      ddo={ddo}
+      isBalanceSufficient={isBalanceSufficient}
+      setPrice={setPrice}
+    />
   ) : (
-    <Consume ddo={ddo} price={price} file={metadata.main.files[0]} />
+    <Consume
+      ddo={ddo}
+      isBalanceSufficient={isBalanceSufficient}
+      file={metadata.main.files[0]}
+      setPrice={setPrice}
+    />
   )
 
   const tabs = [

src/utils/compareAsBN.ts

@@ -1,21 +1,16 @@
-import BN from 'bn.js'
+import { Decimal } from 'decimal.js'
 
-export enum Comparisson {
-  'lt' = 'lt',
-  'lte' = 'lte',
-  'gt' = 'gt',
-  'gte' = 'gte',
-  'eq' = 'eq'
-}
+// Run decimal.js comparison
+// http://mikemcl.github.io/decimal.js/#cmp
+export default function compareAsBN(balance: string, price: string): boolean {
+  const aBN = new Decimal(balance)
+  const bBN = new Decimal(price)
+  const compare = aBN.comparedTo(bBN)
 
-// Run the corresponding bn.js comparisson:
-// https://github.com/indutny/bn.js/#utilities
-export default function compareAsBN(
-  a: string,
-  b: string,
-  comparisson: Comparisson
-) {
-  const aBN = new BN(a)
-  const bBN = new BN(b)
-  return aBN[comparisson](bBN)
+  switch (compare) {
+    case 1 || 0: // balance is greater or equal to price
+      return true
+    default:
+      return false
+  }
 }