2019-02-14 12:37:52 +01:00
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import { generateId } from "../utils/GeneratorHelpers"
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2019-02-21 18:14:07 +01:00
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import Account from "./Account"
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2019-01-21 17:48:40 +01:00
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import DID from "./DID"
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2019-03-12 13:49:11 +01:00
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import { zeroX, didPrefixed } from "../utils"
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2019-03-21 02:56:58 +01:00
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import { Instantiable, InstantiableConfig } from "../Instantiable.abstract"
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2019-02-13 14:32:52 +01:00
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2019-03-19 13:01:28 +01:00
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import { OceanAgreementsConditions } from "./OceanAgreementsConditions"
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2019-03-04 13:05:27 +01:00
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2019-03-13 13:22:20 +01:00
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export interface AgreementPrepareResult {
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2019-02-14 11:30:03 +01:00
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agreementId: string
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signature: string
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}
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2019-01-21 17:48:40 +01:00
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/**
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* Agreements submodule of Ocean Protocol.
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*/
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2019-03-21 02:56:58 +01:00
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export class OceanAgreements extends Instantiable {
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2019-01-21 17:48:40 +01:00
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/**
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* Returns the instance of OceanAgreements.
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* @return {Promise<OceanAgreements>}
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*/
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2019-03-21 02:56:58 +01:00
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public static async getInstance(config: InstantiableConfig): Promise<OceanAgreements> {
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const instance = new OceanAgreements()
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instance.setInstanceConfig(config)
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instance.conditions = await OceanAgreementsConditions.getInstance(config)
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2019-01-21 17:48:40 +01:00
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2019-03-21 02:56:58 +01:00
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return instance
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2019-01-21 17:48:40 +01:00
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}
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2019-03-04 13:05:27 +01:00
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/**
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* Agreements Conditions submodule.
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* @type {OceanAgreementsConditions}
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*/
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public conditions: OceanAgreementsConditions
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2019-01-21 17:48:40 +01:00
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/**
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2019-02-13 14:32:52 +01:00
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* Creates a consumer signature for the specified asset service.
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* @param {string} did Decentralized ID.
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* @param {string} serviceDefinitionId Service definition ID.
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* @param {Account} consumer Consumer account.
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2019-03-13 13:22:20 +01:00
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* @return {Promise<AgreementPrepareResult>} Agreement ID and signaturee.
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2019-02-13 14:32:52 +01:00
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*/
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public async prepare(
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did: string,
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serviceDefinitionId: string,
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consumer: Account,
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2019-03-13 13:22:20 +01:00
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): Promise<AgreementPrepareResult> {
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2019-03-14 15:47:31 +01:00
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2019-02-13 14:32:52 +01:00
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const d: DID = DID.parse(did as string)
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2019-03-21 02:56:58 +01:00
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const ddo = await this.ocean.aquarius.retrieveDDO(d)
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2019-02-14 12:37:52 +01:00
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const agreementId: string = generateId()
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2019-02-13 14:32:52 +01:00
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2019-03-12 13:49:11 +01:00
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const templateName = ddo.findServiceByType("Access").serviceAgreementTemplate.contractName
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2019-03-21 02:56:58 +01:00
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const agreementConditionsIds = await this.ocean.keeper
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2019-03-12 13:49:11 +01:00
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.getTemplateByName(templateName)
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2019-03-14 15:47:31 +01:00
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.getAgreementIdsFromDDO(agreementId, ddo, consumer.getId(), consumer.getId())
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2019-03-11 22:52:53 +01:00
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2019-03-28 12:20:22 +01:00
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const signature = await this.ocean.utils.agreements.signServiceAgreement(
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2019-03-13 13:22:20 +01:00
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ddo,
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serviceDefinitionId,
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agreementId,
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agreementConditionsIds,
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consumer,
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)
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2019-02-13 14:32:52 +01:00
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return {agreementId, signature}
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}
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/**
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* Submit a service agreement to the publisher to create the agreement on-chain.
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* @param {string} did Decentralized ID.
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* @param {string} serviceDefinitionId Service definition ID.
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* @param {Account} consumer Consumer account.
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* @return {Promise<void>}
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*/
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public async send(
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did: string,
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agreementId: string,
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serviceDefinitionId: string,
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signature: string,
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consumer: Account,
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): Promise<void> {
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2019-03-21 02:56:58 +01:00
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const result = await this.ocean.brizo
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2019-02-13 14:32:52 +01:00
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.initializeServiceAgreement(
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2019-03-11 22:52:53 +01:00
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didPrefixed(did),
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zeroX(agreementId),
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2019-02-13 14:32:52 +01:00
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serviceDefinitionId,
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zeroX(signature),
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2019-02-13 14:32:52 +01:00
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consumer.getId(),
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)
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2019-02-21 17:58:54 +01:00
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if (!result.ok) {
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throw new Error("Error on initialize agreement: " + await result.text())
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}
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2019-02-13 14:32:52 +01:00
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}
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/**
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* Create a service agreement on-chain. This should be called by the publisher of the asset.
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* Consumer signature will be verified on-chain, but it is recommended to verify the signature
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* in this method before submitting on-chain.
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2019-01-21 17:48:40 +01:00
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* @param {string} did Decentralized ID.
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2019-02-13 14:32:52 +01:00
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* @param {string} agreementId Service agreement ID.
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2019-01-21 17:48:40 +01:00
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* @param {string} serviceDefinitionId Service definition ID.
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2019-02-13 14:32:52 +01:00
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* @param {string} signature Service agreement signature.
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2019-01-21 17:48:40 +01:00
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* @param {Account} consumer Consumer account.
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* @param {Account} publisher Publisher account.
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2019-03-14 15:47:31 +01:00
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* @return {Promise<boolean>}
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2019-01-21 17:48:40 +01:00
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*/
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public async create(
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did: string,
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2019-02-13 14:32:52 +01:00
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agreementId: string,
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2019-01-21 17:48:40 +01:00
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serviceDefinitionId: string,
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2019-02-13 14:32:52 +01:00
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signature: string,
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2019-01-21 17:48:40 +01:00
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consumer: Account,
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publisher: Account,
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2019-03-14 15:47:31 +01:00
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) {
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2019-01-21 17:48:40 +01:00
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const d: DID = DID.parse(did)
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2019-03-21 02:56:58 +01:00
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const ddo = await this.ocean.aquarius.retrieveDDO(d)
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2019-01-21 17:48:40 +01:00
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2019-03-14 15:47:31 +01:00
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const templateName = ddo.findServiceById<"Access">(serviceDefinitionId).serviceAgreementTemplate.contractName
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2019-03-21 02:56:58 +01:00
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await this.ocean.keeper
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2019-03-14 15:47:31 +01:00
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.getTemplateByName(templateName)
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.createAgreementFromDDO(agreementId, ddo, consumer.getId(), publisher.getId())
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2019-01-21 17:48:40 +01:00
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2019-03-14 15:47:31 +01:00
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return true
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2019-01-21 17:48:40 +01:00
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}
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}
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