HUBS-90 adds metadata templates to the subgraph

subgraph/package.json

@@ -8,8 +8,8 @@
     "build:sepolia": "graph codegen && graph build --network sepolia",
     "build:mainnet": "graph codegen && graph build --network mainnet",
     "deploy:local": "graph deploy --node http://localhost:8020/ --ipfs http://localhost:5001 moleculeprotocol/ipnft-subgraph",
-    "deploy:sepolia": "env-cmd -x -f ../.env graph deploy ip-nft-sepolia --version-label 1.2.0 --node https://subgraphs.alchemy.com/api/subgraphs/deploy --ipfs https://ipfs.satsuma.xyz --deploy-key \\$SATSUMA_DEPLOY_KEY",
-    "deploy:mainnet": "env-cmd -x -f ../.env graph deploy ip-nft-mainnet --version-label 1.2.0 --node https://subgraphs.alchemy.com/api/subgraphs/deploy --ipfs https://ipfs.satsuma.xyz --deploy-key \\$SATSUMA_DEPLOY_KEY",
+    "deploy:sepolia": "env-cmd -x -f ../.env graph deploy ip-nft-sepolia --version-label 1.2.1 --node https://subgraphs.alchemy.com/api/subgraphs/deploy --ipfs https://ipfs.satsuma.xyz --deploy-key \\$SATSUMA_DEPLOY_KEY",
+    "deploy:mainnet": "env-cmd -x -f ../.env graph deploy ip-nft-mainnet --version-label 1.2.1 --node https://subgraphs.alchemy.com/api/subgraphs/deploy --ipfs https://ipfs.satsuma.xyz --deploy-key \\$SATSUMA_DEPLOY_KEY",
     "create:local": "graph create --node http://localhost:8020/ moleculeprotocol/ipnft-subgraph",
     "remove:local": "graph remove --node http://localhost:8020/ moleculeprotocol/ipnft-subgraph",
     "test": "graph test"

subgraph/schema.graphql

@@ -7,6 +7,16 @@ type Ipnft @entity {
   listings: [Listing!] @derivedFrom(field: "ipnft")
   readers: [CanRead!] @derivedFrom(field: "ipnft")
   ipts: [IPT!] @derivedFrom(field: "ipnft")
+  metadata: IpnftMetadata
+  updatedAtTimestamp: BigInt
+}
+
+type IpnftMetadata @entity {
+  id: ID!
+  name: String!
+  image: String!
+  description: String!
+  externalURL: String!
 }
 
 type IPT @entity {

subgraph/src/ipnftMapping.ts

@@ -1,20 +1,22 @@
 import {
   Address,
+  BigInt,
   ByteArray,
   crypto,
   ethereum,
   log,
   store
 } from '@graphprotocol/graph-ts'
 import {
+  IPNFT as IPNFTContract,
   IPNFTMinted as IPNFTMintedEvent,
-  Reserved as ReservedEvent,
-  ReadAccessGranted as ReadAccessGrantedEvent,
-  Transfer as TransferEvent,
   MetadataUpdate as MetadataUpdateEvent,
-  IPNFT as IPNFTContract
+  ReadAccessGranted as ReadAccessGrantedEvent,
+  Reserved as ReservedEvent,
+  Transfer as TransferEvent
 } from '../generated/IPNFT/IPNFT'
-import { Ipnft, Reservation, CanRead } from '../generated/schema'
+import { IpnftMetadata as IpnftMetadataTemplate } from '../generated/templates'
+import { CanRead, Ipnft, Reservation } from '../generated/schema'
 
 export function handleTransfer(event: TransferEvent): void {
   if (event.params.to == Address.zero()) {
@@ -73,15 +75,29 @@ export function handleReservation(event: ReservedEvent): void {
   reservation.save()
 }
 
+function updateIpnftMetadata(ipnft: Ipnft, uri: string, timestamp: BigInt): void {
+    let ipfsLocation = uri.replace('ipfs://', '');
+    if (!ipfsLocation || ipfsLocation == uri) {
+      log.error("Invalid URI format for tokenId {}: {}", [ipnft.id, uri])
+      return
+    }
+
+    ipnft.tokenURI = uri
+    ipnft.metadata = ipfsLocation
+    ipnft.updatedAtTimestamp = timestamp
+    IpnftMetadataTemplate.create(ipfsLocation)
+}
+
 //the underlying parameter arrays are misaligned, hence we cannot cast or unify both events
 export function handleMint(event: IPNFTMintedEvent): void {
   let ipnft = new Ipnft(event.params.tokenId.toString())
   ipnft.owner = event.params.owner
-  ipnft.tokenURI = event.params.tokenURI
   ipnft.createdAt = event.block.timestamp
   ipnft.symbol = event.params.symbol
+  updateIpnftMetadata(ipnft, event.params.tokenURI, event.block.timestamp)
   store.remove('Reservation', event.params.tokenId.toString())
   ipnft.save()
+
 }
 
 export function handleMetadataUpdated(event: MetadataUpdateEvent): void {
@@ -94,8 +110,11 @@ export function handleMetadataUpdated(event: MetadataUpdateEvent): void {
   //erc4906 is not emitting the new url, we must query it ourselves
   let _ipnftContract = IPNFTContract.bind(event.params._event.address);
   let newUri = _ipnftContract.tokenURI(event.params._tokenId)
-
-  ipnft.tokenURI = newUri
+  if (!newUri || newUri == "") {
+    log.debug("no new uri found for token, likely just minted {}", [event.params._tokenId.toString()])
+    return 
+  }
+  updateIpnftMetadata(ipnft, newUri, event.block.timestamp)  
   ipnft.save()
 }
 

subgraph/src/metadataMapping.ts

@@ -0,0 +1,22 @@
+import { json, Bytes, dataSource } from '@graphprotocol/graph-ts'
+import { IpnftMetadata } from '../generated/schema'
+
+export function handleMetadata(content: Bytes): void {
+  const value = json.fromBytes(content).toObject()
+  if (value) {
+    const image = value.get('image')
+    const name = value.get('name')
+    const description = value.get('description')
+    const externalURL = value.get('external_url')
+
+    if (name && image && description && externalURL) {
+      let ipnftMetadata = new IpnftMetadata(dataSource.stringParam())
+      ipnftMetadata.name = name.toString()
+      ipnftMetadata.image = image.toString()
+      ipnftMetadata.externalURL = externalURL.toString()
+      ipnftMetadata.description = description.toString()
+      ipnftMetadata.save()
+    }
+
+  }
+}

subgraph/subgraph.yaml

@@ -228,3 +228,16 @@ templates:
           handler: handleScheduled
         - event: ScheduleReleased(indexed bytes32,indexed address,uint256)
           handler: handleReleased
+  - name: IpnftMetadata
+    kind: file/ipfs
+    mapping:
+      apiVersion: 0.0.7
+      language: wasm/assemblyscript
+      file: ./src/metadataMapping.ts
+      handler: handleMetadata
+      entities:
+        - IpnftMetadata
+      abis:
+        - name: IPNFT
+          file: ./abis/IPNFT.json
+    network: foundry