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setAssetRequirements.ts
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setAssetRequirements.ts
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import { differenceWith, isEqual } from 'lodash';
import { PolymeshError, Procedure, SecurityToken } from '~/internal';
import { Condition, ErrorCode, RoleType, TxTags } from '~/types';
import { ProcedureAuthorization } from '~/types/internal';
import {
complianceRequirementToRequirement,
requirementToComplianceRequirement,
stringToTicker,
u32ToBigNumber,
} from '~/utils/conversion';
export interface SetAssetRequirementsParams {
/**
* array of array of conditions. For a transfer to be successful, it must comply with all the conditions of at least one of the arrays. In other words, higher level arrays are *OR* between them,
* while conditions inside each array are *AND* between them
*/
requirements: Condition[][];
}
/**
* @hidden
*/
export type Params = SetAssetRequirementsParams & {
ticker: string;
};
/**
* @hidden
*/
export async function prepareSetAssetRequirements(
this: Procedure<Params, SecurityToken>,
args: Params
): Promise<SecurityToken> {
const {
context: {
polymeshApi: { query, tx, consts },
},
context,
} = this;
const { ticker, requirements } = args;
const rawTicker = stringToTicker(ticker, context);
const maxConditionComplexity = u32ToBigNumber(
consts.complianceManager.maxConditionComplexity
).toNumber();
if (requirements.length >= maxConditionComplexity) {
throw new PolymeshError({
code: ErrorCode.ValidationError,
message: 'Condition limit reached',
data: { limit: maxConditionComplexity },
});
}
const rawCurrentAssetCompliance = await query.complianceManager.assetCompliances(rawTicker);
const currentRequirements = rawCurrentAssetCompliance.requirements.map(
requirement => complianceRequirementToRequirement(requirement, context).conditions
);
const comparator = (a: Condition[], b: Condition[]): boolean => {
return !differenceWith(a, b, isEqual).length && a.length === b.length;
};
if (
!differenceWith(requirements, currentRequirements, comparator).length &&
requirements.length === currentRequirements.length
) {
throw new PolymeshError({
code: ErrorCode.ValidationError,
message: 'The supplied condition list is equal to the current one',
});
}
const rawConditions = requirements.map(requirement => {
const {
sender_conditions: senderConditions,
receiver_conditions: receiverConditions,
} = requirementToComplianceRequirement({ conditions: requirement, id: 1 }, context);
return {
senderConditions,
receiverConditions,
};
});
if (currentRequirements.length) {
this.addTransaction(tx.complianceManager.resetAssetCompliance, {}, rawTicker);
}
rawConditions.forEach(({ senderConditions, receiverConditions }) => {
this.addTransaction(
tx.complianceManager.addComplianceRequirement,
{},
rawTicker,
senderConditions,
receiverConditions
);
});
return new SecurityToken({ ticker }, context);
}
/**
* @hidden
*/
export function getAuthorization(
this: Procedure<Params, SecurityToken>,
{ ticker }: Params
): ProcedureAuthorization {
return {
identityRoles: [{ type: RoleType.TokenOwner, ticker }],
signerPermissions: {
transactions: [
TxTags.complianceManager.ResetAssetCompliance,
TxTags.complianceManager.AddComplianceRequirement,
],
tokens: [new SecurityToken({ ticker }, this.context)],
portfolios: [],
},
};
}
/**
* @hidden
*/
export const setAssetRequirements = (): Procedure<Params, SecurityToken> =>
new Procedure(prepareSetAssetRequirements, getAuthorization);