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Blueprint.ts
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Blueprint.ts
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// Copyright 2017-2021 @polkadot/api-contract authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { SubmittableExtrinsic } from '@polkadot/api/submittable/types';
import type { ApiTypes, DecorateMethod } from '@polkadot/api/types';
import type { AccountId, EventRecord, Hash } from '@polkadot/types/interfaces';
import type { AnyJson, CodecArg, ISubmittableResult } from '@polkadot/types/types';
import type { AbiConstructor, BlueprintOptions } from '../types';
import type { MapConstructorExec } from './types';
import { SubmittableResult } from '@polkadot/api';
import { ApiBase } from '@polkadot/api/base';
import { isUndefined } from '@polkadot/util';
import { Abi } from '../Abi';
import { applyOnEvent } from '../util';
import { Base } from './Base';
import { Contract } from './Contract';
import { createBluePrintTx, EMPTY_SALT, encodeSalt } from './util';
export class BlueprintSubmittableResult<ApiType extends ApiTypes> extends SubmittableResult {
public readonly contract?: Contract<ApiType>;
constructor (result: ISubmittableResult, contract?: Contract<ApiType>) {
super(result);
this.contract = contract;
}
}
export class Blueprint<ApiType extends ApiTypes> extends Base<ApiType> {
/**
* @description The on-chain code hash for this blueprint
*/
public readonly codeHash: Hash;
readonly #tx: MapConstructorExec<ApiType> = {};
constructor (api: ApiBase<ApiType>, abi: AnyJson | Abi, codeHash: string | Hash | Uint8Array, decorateMethod: DecorateMethod<ApiType>) {
super(api, abi, decorateMethod);
this.codeHash = this.registry.createType('Hash', codeHash);
this.abi.constructors.forEach((c): void => {
if (isUndefined(this.#tx[c.method])) {
this.#tx[c.method] = createBluePrintTx((o, p) => this.#deploy(c, o, p));
}
});
}
public get tx (): MapConstructorExec<ApiType> {
return this.#tx;
}
#deploy = (constructorOrId: AbiConstructor | string | number, { gasLimit = 0, salt, value = 0 }: BlueprintOptions, params: CodecArg[]): SubmittableExtrinsic<ApiType, BlueprintSubmittableResult<ApiType>> => {
const encodedSalt = encodeSalt(salt);
const withSalt = this.api.tx.contracts.instantiate.meta.args.length === 5;
const encoded = this.abi.findConstructor(constructorOrId).toU8a(params, withSalt ? EMPTY_SALT : encodedSalt);
const tx = withSalt
? this.api.tx.contracts.instantiate(value, gasLimit, this.codeHash, encoded, encodedSalt)
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore old style with salt included
: this.api.tx.contracts.instantiate(value, gasLimit, this.codeHash, encoded);
return tx.withResultTransform((result: ISubmittableResult) =>
new BlueprintSubmittableResult(result, applyOnEvent(result, ['Instantiated'], ([record]: EventRecord[]) =>
new Contract<ApiType>(this.api, this.abi, record.event.data[1] as AccountId, this._decorateMethod)
))
);
}
}