6701 EC removeOracles #6977
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,124 @@ | ||
| import { Fail } from '@agoric/assert'; | ||
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There was a problem hiding this comment. this is really a rename 1023f04 |
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| import { makeTracer } from '@agoric/internal'; | ||
| import { defineDurableExoClassKit, M, makeKindHandle } from '@agoric/vat-data'; | ||
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| const trace = makeTracer('OrKit', false); | ||
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| export const INVITATION_MAKERS_DESC = 'oracle invitation'; | ||
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| /** | ||
| * @typedef {{ | ||
| * oracleId: string, | ||
| * roundPowers: { handlePush: (status: OracleStatus, result: import('./roundsManager.js').PriceRound) => Promise<OracleStatus> } | ||
| * }} HeldParams | ||
| */ | ||
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| /** | ||
| * @typedef {{ roundId: number | undefined, unitPrice: NatValue }} PriceDatum | ||
| */ | ||
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| /** | ||
| * @typedef {object} OracleStatus | ||
| * @property {boolean} [disabled] | ||
| * @property {bigint} lastReportedRound | ||
| * @property {bigint} lastStartedRound | ||
| * @property {bigint} latestSubmission | ||
| * @property {string} oracleId | ||
| */ | ||
| /** | ||
| * @typedef {Readonly<HeldParams & { | ||
| * }>} ImmutableState | ||
| * | ||
| * @typedef {OracleStatus & { | ||
| * }} MutableState | ||
| */ | ||
| /** @typedef {ImmutableState & MutableState} State */ | ||
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| const oracleKitKind = makeKindHandle('OracleKit'); | ||
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| /** | ||
| * @param {HeldParams} heldParams | ||
| * @returns {State} | ||
| */ | ||
| const initState = ({ oracleId, roundPowers }) => { | ||
| return { | ||
| oracleId, | ||
| roundPowers, | ||
| disabled: false, | ||
| lastReportedRound: 0n, | ||
| lastStartedRound: 0n, | ||
| latestSubmission: 0n, | ||
| }; | ||
| }; | ||
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| const AdminI = M.interface('OracleKitAdmin', { | ||
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| disable: M.call().returns(), | ||
| }); | ||
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| const OracleI = M.interface('Oracle', { | ||
| pushPrice: M.call({ roundId: M.any(), unitPrice: M.bigint() }).returns( | ||
| M.promise(), | ||
| ), | ||
| getStatus: M.call().returns(M.record()), | ||
| }); | ||
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| export const makeOracleAdminKit = defineDurableExoClassKit( | ||
| oracleKitKind, | ||
| { admin: AdminI, oracle: OracleI }, | ||
| initState, | ||
| { | ||
| admin: { | ||
| disable() { | ||
| trace(`oracle ${this.state.oracleId} disabled`); | ||
| this.state.disabled = true; | ||
| }, | ||
| }, | ||
| oracle: { | ||
| /** | ||
| * push a unitPrice result from this oracle | ||
| * | ||
| * @param {PriceDatum} datum | ||
| */ | ||
| async pushPrice({ | ||
| roundId: roundIdRaw = undefined, | ||
| unitPrice: valueRaw, | ||
| }) { | ||
| const { state } = this; | ||
| !state.disabled || Fail`pushPrice for disabled oracle`; | ||
| const { roundPowers } = state; | ||
| const result = await roundPowers.handlePush( | ||
| { | ||
| oracleId: state.oracleId, | ||
| lastReportedRound: state.lastReportedRound, | ||
| lastStartedRound: state.lastStartedRound, | ||
| latestSubmission: state.latestSubmission, | ||
| }, | ||
| { | ||
| roundId: roundIdRaw, | ||
| unitPrice: valueRaw, | ||
| }, | ||
| ); | ||
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| state.lastReportedRound = result.lastReportedRound; | ||
| state.lastStartedRound = result.lastStartedRound; | ||
| state.latestSubmission = result.latestSubmission; | ||
| }, | ||
| /** | ||
| * | ||
| * @returns {OracleStatus} | ||
| */ | ||
| getStatus() { | ||
| const { state } = this; | ||
| return { | ||
| oracleId: state.oracleId, | ||
| disabled: state.disabled, | ||
| lastReportedRound: state.lastReportedRound, | ||
| lastStartedRound: state.lastStartedRound, | ||
| latestSubmission: state.latestSubmission, | ||
| }; | ||
| }, | ||
| }, | ||
| }, | ||
| ); | ||
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| /** @typedef {ReturnType<typeof makeOracleAdminKit>} OracleKit */ | ||
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I wonder why
disablerather thanrevoke. Can it be enabled again?(thanks for adding the JS standard
revoke()thing to https://github.com/dckc/awesome-ocap/wiki/CareTaker )There was a problem hiding this comment.
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that was the idea. right now there's no
enable()method but the state is a boolean so it could be toggled.