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contract.ts
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contract.ts
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import { pascal } from 'case';
import type {
CodeDetails,
Contract as ContractInfo,
CosmWasmClient,
StdFee,
} from 'cosmwasm';
import type { Account } from './account';
import { mapKV, mapObject } from './utils';
type Msg = Record<string, unknown>;
/**
* Contract instance with baked-in client
*/
export class Contract {
address: string;
client: CosmWasmClient;
constructor(address: string, client: CosmWasmClient) {
this.address = address;
this.client = client;
}
/**
* Get contract info
*/
async getInfo(): Promise<ContractInfo> {
return await this.client.getContract(this.address);
}
/**
* Get code details
*/
async getCode(): Promise<CodeDetails> {
return this.client.getCodeDetails((await this.getInfo()).codeId);
}
/**
* Query the contract by passing query message
* @returns query result
*/
async query(qmsg: Msg): Promise<unknown> {
return this.client.queryContractSmart(this.address, qmsg);
}
/**
* Execute the contract.
* example usage: `contract.execute(xmsg).by(signerAccount)`
*/
execute(
xmsg: Msg,
senderAddress: string | null,
fee: number | 'auto' | StdFee = 'auto',
) {
return {
by: (account: Account) =>
executor(account, this.address)(xmsg, senderAddress, fee),
};
}
}
export const getContracts = (
client: CosmWasmClient,
state: Record<string, unknown>,
/* eslint-disable */
// @ts-ignore
sdk: Record<string, Record<string, Function>>,
) => {
return mapKV(
state,
(
contractName: string,
contractInfo: { addresses: Record<string, Record<string, string>> },
) => {
const addresses = contractInfo.addresses;
const prefixLabel = (label: string) => `$${label}`;
const pascalContractName = pascal(contractName);
const contractSdk = errorIfNotFound(
sdk[`${pascalContractName}Contract`],
`"${pascalContractName}Contract" not found in sdk`,
);
const contractQueryClient = errorIfNotFound(
contractSdk[`${pascalContractName}QueryClient`],
`"${pascalContractName}QueryClient" not found in contract's sdk`,
);
const contractClient = errorIfNotFound(
contractSdk[`${pascalContractName}Client`],
`"${pascalContractName}Client" not found in contract's sdk`,
);
let contracts = mapObject(
addresses,
prefixLabel,
// (addr: string) => ,
(addr: string) => ({
...new Contract(addr, client),
/* eslint-disable */
// @ts-ignore
...new contractQueryClient(client, addr),
signer: (account: Account) => {
return {
/* eslint-disable */
// @ts-ignore
...new contractClient(
account.signingClient,
account.address,
addr,
),
execute: executor(account, addr),
};
},
}),
);
if (typeof contracts['$default'] === 'object' && contracts['$default']) {
contracts = {
...contracts,
...contracts['$default'],
};
Object.setPrototypeOf(contracts, Contract.prototype);
}
return [contractName, contracts];
},
);
};
const executor =
(account: Account, contractAddress: string) =>
async (
msg: Msg,
senderAddress: string | null,
fee: number | 'auto' | StdFee = 'auto',
) => {
const _senderAddress =
senderAddress || (await account.wallet.getAccounts())[0]?.address;
if (!_senderAddress) {
throw Error('Unable to get sender address');
}
return await account.signingClient.execute(
_senderAddress,
contractAddress,
msg,
fee,
);
};
const errorIfNotFound = <T>(object: T | undefined, msg: string) => {
if (object === undefined) {
throw Error(msg);
} else {
return object;
}
};