@wuwei-labs/srsly
Version:
TypeScript SDK for SRSLY
98 lines • 3.98 kB
JavaScript
/**
* @purpose Simplified cancelRental instruction wrapper
*
* Thin convenience wrapper around Codama-generated cancelRental instruction.
* Cancels an active rental with an optional delay.
*/
import { address } from '@solana/kit';
import { getCancelRentalInstructionAsync } from '../generated/codama/instructions';
import { mergeConfig, getAddresses } from '../utils/config';
import { toTransactionSigner } from '../utils/signer';
import { deriveActiveRental } from '../pda/srsly';
import { deriveAssociatedTokenAccount } from '../pda/token';
import { prepareInstructions } from '../utils/instructions';
import { convertDuration } from '../params/duration';
import { fetchConfig } from '../accounts/config';
import { fetchContract } from '../accounts/contract';
/**
* Cancel an active rental and refund the borrower for unused time.
* Takes effect immediately or after a delay set by `cancelDelay`.
*
* @param params - Cancellation parameters (borrower, contract, cancelDelay)
* @param config - Optional SDK configuration overrides
* @returns Kit instruction (or web3.js if PublicKey in config)
*
* @example
* ```typescript
* // Default cancellation (uses contract's cancelDelayMin)
* const ix = await cancelRental({
* borrower: borrowerWallet,
* contract: contractAddress
* });
*
* // Instant cancellation
* const ix2 = await cancelRental({
* borrower: borrowerWallet,
* contract: contractAddress,
* cancelDelay: 0
* });
*
* // Cancel after 12 hours
* const ix3 = await cancelRental({
* borrower: borrowerWallet,
* contract: contractAddress,
* cancelDelay: { hours: 12 }
* });
* ```
*/
export async function cancelRental(params, config) {
// Merge config
const finalConfig = mergeConfig(config);
// Validate required params
if (!params.borrower) {
throw new Error('borrower is required');
}
if (!params.contract) {
throw new Error('contract is required');
}
// Convert borrower to transaction signer
const borrowerSigner = toTransactionSigner(params.borrower);
// Get atlasMint from on-chain config
const configAccount = await fetchConfig(finalConfig.rpcUrl);
const atlasMint = configAccount.data.atlasMint;
const addresses = getAddresses(config);
const programAddress = address(addresses.srsly);
// Fetch contract to get fleet
const contractAccount = await fetchContract(params.contract, finalConfig.rpcUrl);
const fleet = contractAccount.data.fleet;
// Derive active rental PDA (no more slot logic)
const rentalState = await deriveActiveRental(params.contract);
// Derive contract token account (ATA of contract PDA)
const contractAddress = address(params.contract);
const contractTokenAccount = await deriveAssociatedTokenAccount(contractAddress, atlasMint);
// Convert duration to seconds (supports { hours: 1 }, { days: 1 }, etc.)
// Default to contract's cancelDelayMin if not specified
const cancelDelay = params.cancelDelay !== undefined
? BigInt(convertDuration(params.cancelDelay))
: contractAccount.data.cancelDelayMin;
// Resolve contract thread (system_program::ID means no thread configured)
const thread = address(contractAccount.data.thread);
const hasThread = thread !== '11111111111111111111111111111111';
// Call Codama-generated instruction
// Note: Codama auto-derives config, borrowerState, borrowerTokenAccount, rentalAuthority
const kitInstruction = await getCancelRentalInstructionAsync({
mint: atlasMint,
borrower: borrowerSigner,
rentalState,
contractTokenAccount,
contract: contractAddress,
fleet: address(fleet),
...(hasThread && { contractThread: thread }),
cancelDelay,
}, { programAddress });
return prepareInstructions(kitInstruction, {
computeUnits: params.computeUnits,
PublicKey: finalConfig.PublicKey,
});
}
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