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feat(issuer): add batch claiming facade
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119 changes: 119 additions & 0 deletions
119
packages/traceability/issuer/src/blockchain-facade/CertificateBatchOperations.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| import { BigNumber, ContractTransaction, utils } from 'ethers'; | ||
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| import { IBlockchainProperties } from './BlockchainProperties'; | ||
| import { Certificate, IClaimData, IData } from './Certificate'; | ||
| import { encodeClaimData, encodeData } from './CertificateUtils'; | ||
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| interface CertificateInfoInBatch extends IData { | ||
| to: string; | ||
| amount: BigNumber; | ||
| } | ||
|
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| export async function issueCertificates( | ||
| certificateInfo: CertificateInfoInBatch[], | ||
| blockchainProperties: IBlockchainProperties | ||
| ): Promise<Certificate['id'][]> { | ||
| const { issuer, registry, activeUser } = blockchainProperties; | ||
| const issuerWithSigner = issuer.connect(activeUser); | ||
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| const data = certificateInfo.map((info) => | ||
| encodeData({ | ||
| generationStartTime: info.generationStartTime, | ||
| generationEndTime: info.generationEndTime, | ||
| deviceId: info.deviceId, | ||
| metadata: info.metadata | ||
| }) | ||
| ); | ||
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| const batchIssueTx = await issuerWithSigner.issueBatch( | ||
| certificateInfo.map((info) => info.to), | ||
| certificateInfo.map((info) => info.amount), | ||
| data | ||
| ); | ||
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| const { events } = await batchIssueTx.wait(); | ||
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| let issuanceEvent: utils.LogDescription; | ||
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| for (const event of events) { | ||
| try { | ||
| issuanceEvent = issuer.interface.parseLog(event); | ||
| } catch (e) { | ||
| issuanceEvent = registry.interface.parseLog(event); | ||
| } | ||
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| if (issuanceEvent.name === 'IssuanceBatch') { | ||
| break; | ||
| } | ||
| } | ||
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| return issuanceEvent.args[2].map((id: BigNumber) => id.toNumber()); | ||
| } | ||
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| export async function transferCertificates( | ||
| certificateIds: number[], | ||
| to: string, | ||
| blockchainProperties: IBlockchainProperties, | ||
| from?: string | ||
| ): Promise<ContractTransaction> { | ||
| const certificatesPromises = certificateIds.map((certId) => | ||
| new Certificate(certId, blockchainProperties).sync() | ||
| ); | ||
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| const { registry, activeUser } = blockchainProperties; | ||
| const registryWithSigner = registry.connect(activeUser); | ||
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| const activeUserAddress = await activeUser.getAddress(); | ||
| const fromAddress = from ?? activeUserAddress; | ||
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| const certificates = await Promise.all(certificatesPromises); | ||
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| const values = certificates.map((cert) => BigNumber.from(cert.owners[fromAddress] ?? 0)); | ||
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| const transferTx = await registryWithSigner.safeBatchTransferFrom( | ||
| fromAddress, | ||
| to, | ||
| certificateIds, | ||
| values, | ||
| utils.randomBytes(32) // TO-DO: replace with proper data | ||
| ); | ||
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| await transferTx.wait(); | ||
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| return transferTx; | ||
| } | ||
|
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| export async function claimCertificates( | ||
| certificateIds: number[], | ||
| claimData: IClaimData, | ||
| blockchainProperties: IBlockchainProperties, | ||
| forAddress?: string | ||
| ): Promise<ContractTransaction> { | ||
| const certificatesPromises = certificateIds.map((certId) => | ||
| new Certificate(certId, blockchainProperties).sync() | ||
| ); | ||
| const certificates = await Promise.all(certificatesPromises); | ||
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| const { activeUser, registry } = blockchainProperties; | ||
| const claimer = forAddress ?? (await activeUser.getAddress()); | ||
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| const values = certificates.map((cert) => BigNumber.from(cert.owners[claimer] ?? 0)); | ||
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| const encodedClaimData = encodeClaimData(claimData); | ||
| const data = utils.randomBytes(32); | ||
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| const registryWithSigner = registry.connect(activeUser); | ||
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| const claimTx = await registryWithSigner.safeBatchTransferAndClaimFrom( | ||
| claimer, | ||
| claimer, | ||
| certificateIds, | ||
| values, | ||
| data, | ||
| certificates.map(() => encodedClaimData) | ||
| ); | ||
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| await claimTx.wait(); | ||
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| return claimTx; | ||
| } |
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