feat: add set flags for classic asset (#165)

* feat: add set flags for classic asset

* chore: bump version to 0.12.0

package.json

@@ -1,6 +1,6 @@
 {
  "name": "stellar-plus",
- "version": "0.11.0",
+ "version": "0.12.0",
  "description": "beta version of stellar-plus, an all-in-one sdk for the Stellar blockchain",
  "main": "./lib/index.js",
  "types": "./lib/index.d.ts",

src/stellar-plus/asset/classic/index.ts

@@ -1,8 +1,18 @@
-import { Horizon as HorizonNamespace, Operation, Asset as StellarAsset } from '@stellar/stellar-sdk'
+import {
+ AuthClawbackEnabledFlag,
+ AuthFlag,
+ AuthImmutableFlag,
+ AuthRequiredFlag,
+ AuthRevocableFlag,
+ Horizon as HorizonNamespace,
+ Operation,
+ Asset as StellarAsset,
+} from '@stellar/stellar-sdk'
 
 import { AccountHandler } from 'stellar-plus/account/account-handler/types'
 import {
  ClassicAssetHandlerConstructorArgs,
+ ControlFlags,
  ClassicAssetHandler as IClassicAssetHandler,
 } from 'stellar-plus/asset/classic/types'
 import { AssetTypes } from 'stellar-plus/asset/types'
@@ -242,6 +252,40 @@ export class ClassicAssetHandler implements IClassicAssetHandler {
  return result.response
  }
 
+ public async setFlags(
+ args: {
+ controlFlags: ControlFlags
+ } & TransactionInvocation
+ ): Promise<HorizonNamespace.HorizonApi.SubmitTransactionResponse> {
+ this.requireIssuerAccount() // Enforces the issuer account to be set.
+
+ const { controlFlags } = args
+
+ const txInvocation = args as TransactionInvocation
+ const updatedTxInvocation = {
+ ...txInvocation,
+ signers: [...txInvocation.signers, this.issuerAccount!], // Adds the issuer account as a signer. Issue account initialization is already verified by requireIssuerAccount().
+ }
+
+ let flags = 0
+ if (controlFlags.authorizationRequired) flags |= AuthRequiredFlag
+ if (controlFlags.authorizationRevocable) flags |= AuthRevocableFlag
+ if (controlFlags.authorizationImmutable) flags |= AuthImmutableFlag
+ if (controlFlags.clawbackEnabled) flags |= AuthClawbackEnabledFlag
+
+ const setFlags = Operation.setOptions({
+ setFlags: flags as AuthFlag,
+ source: this.asset.getIssuer(),
+ })
+
+ const result = (await this.classicTransactionPipeline.execute({
+ txInvocation: updatedTxInvocation,
+ operations: [setFlags],
+ })) as ClassicTransactionPipelineOutputSimple
+
+ return result.response
+ }
+
  public async clawback(): Promise<void> {
  throw new Error('Method not implemented.')
  }

src/stellar-plus/asset/classic/types.ts

@@ -33,6 +33,10 @@ export type ClassicTokenInterfaceManagement = {
  amount: number
  } & TransactionInvocation
  ) => Promise<Horizon.HorizonApi.SubmitTransactionResponse>
+
+ setFlags: (
+ args: { controlFlags: ControlFlags } & TransactionInvocation
+ ) => Promise<Horizon.HorizonApi.SubmitTransactionResponse>
 }
 
 export type ClassicTokenInterfaceUser = {
@@ -49,3 +53,10 @@ export type ClassicUtils = {
  args: { to: string; amount: number } & TransactionInvocation
  ) => Promise<Horizon.HorizonApi.SubmitTransactionResponse>
 }
+
+export type ControlFlags = {
+ authorizationRequired?: boolean
+ authorizationRevocable?: boolean
+ clawbackEnabled?: boolean
+ authorizationImmutable?: boolean
+}