adding dummyweb3 and zero_address to calculate price on unsupported network / not connected user

src/@utils/assetConvertor.ts

@@ -16,9 +16,8 @@ export async function transformAssetToAssetSelection(
 
   for (const asset of extendedAssets) {
     const algoComputeService = getServiceByName(asset, 'compute')
-
     if (
-      asset?.accessDetails.price &&
+      asset?.accessDetails?.price &&
       algoComputeService?.serviceEndpoint === datasetProviderEndpoint
     ) {
       let selected = false

src/components/@shared/ButtonBuy/index.tsx

@@ -2,6 +2,7 @@ import React, { FormEvent, ReactElement } from 'react'
 import Button from '../atoms/Button'
 import styles from './index.module.css'
 import Loader from '../atoms/Loader'
+import { useWeb3 } from '@context/Web3'
 
 interface ButtonBuyProps {
   action: 'download' | 'compute'
@@ -43,12 +44,13 @@ function getConsumeHelpText(
   isConsumable: boolean,
   isBalanceSufficient: boolean,
   consumableFeedback: string,
-  isSupportedOceanNetwork: boolean
+  isSupportedOceanNetwork: boolean,
+  web3: any
 ) {
   const text =
     isConsumable === false
       ? consumableFeedback
-      : hasPreviousOrder
+      : hasPreviousOrder && web3
       ? `You bought this ${assetType} already allowing you to use it without paying again.`
       : hasDatatoken
       ? `You own ${dtBalance} ${dtSymbol} allowing you to use this data set by spending 1 ${dtSymbol}, but without paying OCEAN again.`
@@ -106,7 +108,8 @@ function getComputeAssetHelpText(
   selectedComputeAssettLowPoolLiquidity?: boolean,
   selectedComputeAssetType?: string,
   isAlgorithmConsumable?: boolean,
-  isSupportedOceanNetwork?: boolean
+  isSupportedOceanNetwork?: boolean,
+  web3?: any
 ) {
   const computeAssetHelpText = getConsumeHelpText(
     dtBalance,
@@ -118,7 +121,8 @@ function getComputeAssetHelpText(
     isConsumable,
     isBalanceSufficient,
     consumableFeedback,
-    isSupportedOceanNetwork
+    isSupportedOceanNetwork,
+    web3
   )
 
   const computeAlgoHelpText = getAlgoHelpText(
@@ -170,6 +174,7 @@ export default function ButtonBuy({
   isAlgorithmConsumable,
   isSupportedOceanNetwork
 }: ButtonBuyProps): ReactElement {
+  const { web3 } = useWeb3()
   const buttonText =
     action === 'download'
       ? hasPreviousOrder
@@ -210,7 +215,8 @@ export default function ButtonBuy({
                   isConsumable,
                   isBalanceSufficient,
                   consumableFeedback,
-                  isSupportedOceanNetwork
+                  isSupportedOceanNetwork,
+                  web3
                 )
               : getComputeAssetHelpText(
                   hasPreviousOrder,
@@ -229,7 +235,8 @@ export default function ButtonBuy({
                   selectedComputeAssetLowPoolLiquidity,
                   selectedComputeAssetType,
                   isAlgorithmConsumable,
-                  isSupportedOceanNetwork
+                  isSupportedOceanNetwork,
+                  web3
                 )}
           </div>
         </>

src/components/Asset/AssetActions/Compute/FormComputeDataset.tsx

@@ -9,7 +9,7 @@ import PriceOutput from './PriceOutput'
 import { useAsset } from '@context/Asset'
 import { useWeb3 } from '@context/Web3'
 import content from '../../../../../content/pages/startComputeDataset.json'
-import { Asset } from '@oceanprotocol/lib'
+import { Asset, ZERO_ADDRESS } from '@oceanprotocol/lib'
 import { AccessDetails, OrderPriceAndFees } from 'src/@types/Price'
 import {
   getAccessDetailsForAssets,
@@ -18,6 +18,7 @@ import {
 import { AssetExtended } from 'src/@types/AssetExtended'
 import Decimal from 'decimal.js'
 import { MAX_DECIMALS } from '@utils/constants'
+import { getDummyWeb3 } from '@utils/web3'
 
 export default function FormStartCompute({
   algorithms,
@@ -94,14 +95,14 @@ export default function FormStartCompute({
   }
 
   useEffect(() => {
-    if (!values.algorithm || !accountId || !isConsumable) return
+    if (!values.algorithm || !isConsumable) return
     async function fetchAlgorithmAssetExtended() {
       const algorithmAsset = getAlgorithmAsset(values.algorithm)
       const accessDetails = await getAccessDetails(
         algorithmAsset.chainId,
         algorithmAsset.services[0].datatokenAddress,
         algorithmAsset.services[0].timeout,
-        accountId
+        accountId || ZERO_ADDRESS // if user is not connected, use ZERO_ADDRESS as accountId
       )
       const extendedAlgoAsset: AssetExtended = {
         ...algorithmAsset,
@@ -121,6 +122,7 @@ export default function FormStartCompute({
     setDatasetOrderPrice(
       datasetOrderPriceAndFees?.price || asset.accessDetails.price
     )
+
     setAlgoOrderPrice(
       algoOrderPriceAndFees?.price ||
         selectedAlgorithmAsset?.accessDetails.price
@@ -142,16 +144,17 @@ export default function FormStartCompute({
       .plus(priceAlgo)
       .toDecimalPlaces(MAX_DECIMALS)
       .toString()
+
     setTotalPrice(totalPrice)
   }, [
-    asset?.accessDetails,
-    selectedAlgorithmAsset?.accessDetails,
+    asset,
     hasPreviousOrder,
     hasDatatoken,
     hasPreviousOrderSelectedComputeAsset,
     hasDatatokenSelectedComputeAsset,
     datasetOrderPriceAndFees,
-    algoOrderPriceAndFees
+    algoOrderPriceAndFees,
+    selectedAlgorithmAsset
   ])
 
   useEffect(() => {

src/components/Asset/AssetActions/Compute/index.tsx

@@ -65,6 +65,7 @@ export default function Compute({
   consumableFeedback?: string
 }): ReactElement {
   const { accountId, web3 } = useWeb3()
+
   const [isJobStarting, setIsJobStarting] = useState(false)
   const [error, setError] = useState<string>()
   const newAbortController = useAbortController()
@@ -116,7 +117,7 @@ export default function Compute({
     const datatokenInstance = new Datatoken(web3)
     const dtBalance = await datatokenInstance.balance(
       asset?.services[0].datatokenAddress,
-      accountId
+      accountId || ZERO_ADDRESS // if the user is not connected, we use ZERO_ADDRESS as accountId
     )
     setAlgorithmDTBalance(new Decimal(dtBalance).toString())
     const hasAlgoDt = Number(dtBalance) >= 1
@@ -134,7 +135,7 @@ export default function Compute({
     const initializedProvider = await initializeProviderForCompute(
       asset,
       selectedAlgorithmAsset,
-      accountId,
+      accountId || ZERO_ADDRESS, // if the user is not connected, we use ZERO_ADDRESS as accountId
       computeEnv
     )
     if (
@@ -176,12 +177,13 @@ export default function Compute({
             }
           : null
       const datasetPriceAndFees = await getOrderPriceAndFees(
-        web3,
+        web3 || (await getDummyWeb3(asset?.chainId)), // if the user is not connected, we need to use a dummy web3
         asset,
-        ZERO_ADDRESS,
+        accountId || ZERO_ADDRESS, // if the user is not connected, we need to use ZERO_ADDRESS as accountId
         poolParams,
         initializedProvider?.datasets?.[0]?.providerFee
       )
+
       if (!datasetPriceAndFees) {
         setError('Error setting dataset price and fees!')
         return
@@ -224,12 +226,13 @@ export default function Compute({
         }
       }
       const algorithmOrderPriceAndFees = await getOrderPriceAndFees(
-        web3,
+        web3 || (await getDummyWeb3(asset?.chainId)),
         selectedAlgorithmAsset,
-        ZERO_ADDRESS,
+        accountId || ZERO_ADDRESS,
         algoPoolParams,
         initializedProvider.algorithm.providerFee
       )
+
       if (!algorithmOrderPriceAndFees) {
         setError('Error setting algorithm price and fees!')
         return
@@ -247,7 +250,7 @@ export default function Compute({
   }, [asset?.accessDetails])
 
   useEffect(() => {
-    if (!selectedAlgorithmAsset?.accessDetails || !accountId) return
+    if (!selectedAlgorithmAsset?.accessDetails) return
 
     setIsRequestingAlgoOrderPrice(true)
     setIsConsumablePrice(selectedAlgorithmAsset?.accessDetails?.isPurchasable)