use anchor_lang::{prelude::Clock, AccountDeserialize};
use clockwork_utils::ProgramLogsDeserializable;
use solana_client::{
client_error, rpc_client::RpcClient,
rpc_response::RpcSimulateTransactionResult,
};
use solana_sdk::{
commitment_config::CommitmentConfig,
hash::Hash,
instruction::Instruction,
program_error::ProgramError,
pubkey::Pubkey,
signature::{Keypair, Signature, Signer},
signers::Signers,
transaction::Transaction,
};
use std::{
fmt::Debug,
ops::{Deref, DerefMut},
str::FromStr,
};
use thiserror::Error;
#[derive(Debug, Error)]
pub enum ClientError {
#[error(transparent)]
Client(#[from] client_error::ClientError),
#[error(transparent)]
Program(#[from] ProgramError),
#[error("Failed to deserialize account data")]
DeserializationError,
}
pub type ClientResult<T> = Result<T, ClientError>;
pub struct Client {
pub client: RpcClient,
pub payer: Keypair,
}
impl Client {
pub fn new(payer: Keypair, url: String) -> Self {
let client = RpcClient::new_with_commitment::<String>(url, CommitmentConfig::processed());
Self { client, payer }
}
pub fn get<T: AccountDeserialize>(&self, pubkey: &Pubkey) -> ClientResult<T> {
let data = self.client.get_account_data(pubkey)?;
T::try_deserialize(&mut data.as_slice()).map_err(|_| ClientError::DeserializationError)
}
pub fn get_clock(&self) -> ClientResult<Clock> {
let clock_pubkey = Pubkey::from_str("SysvarC1ock11111111111111111111111111111111").unwrap();
let clock_data = self.client.get_account_data(&clock_pubkey)?;
bincode::deserialize::<Clock>(&clock_data).map_err(|_| ClientError::DeserializationError)
}
pub fn get_return_data<T: ProgramLogsDeserializable>(
&self,
ix: Instruction,
) -> ClientResult<T> {
let logs = self.get_instruction_logs(ix.clone())?;
T::try_from_program_logs(logs, &ix.program_id)
.map_err(|_| ClientError::DeserializationError)
}
pub fn get_instruction_logs(&self, ix: Instruction) -> ClientResult<Vec<String>> {
let result = self.simulate_transaction(&[ix], &[self.payer()])?;
let logs = result.logs.ok_or(ClientError::DeserializationError)?;
Ok(logs)
}
pub fn payer(&self) -> &Keypair {
&self.payer
}
pub fn payer_pubkey(&self) -> Pubkey {
self.payer.pubkey()
}
pub fn latest_blockhash(&self) -> ClientResult<Hash> {
Ok(self.client.get_latest_blockhash()?)
}
pub fn airdrop(&self, to_pubkey: &Pubkey, lamports: u64) -> ClientResult<Signature> {
let blockhash = self.client.get_latest_blockhash()?;
let signature = self.request_airdrop_with_blockhash(to_pubkey, lamports, &blockhash)?;
self.confirm_transaction_with_spinner(&signature, &blockhash, self.commitment())?;
Ok(signature)
}
pub fn send_and_confirm<T: Signers>(
&self,
ixs: &[Instruction],
signers: &T,
) -> ClientResult<Signature> {
let tx = self.transaction(ixs, signers)?;
Ok(self.send_and_confirm_transaction(&tx)?)
}
pub fn simulate_transaction<T: Signers>(
&self,
ixs: &[Instruction],
signers: &T,
) -> ClientResult<RpcSimulateTransactionResult> {
let tx = self.transaction(ixs, signers)?;
let result = self.client.simulate_transaction(&tx)?;
if result.value.err.is_some() {
Err(ClientError::DeserializationError)
} else {
Ok(result.value)
}
}
fn transaction<T: Signers>(
&self,
ixs: &[Instruction],
signers: &T,
) -> ClientResult<Transaction> {
let mut tx = Transaction::new_with_payer(ixs, Some(&self.payer_pubkey()));
tx.sign(signers, self.latest_blockhash()?);
Ok(tx)
}
}
impl Debug for Client {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "RPC client payer {}", self.payer_pubkey())
}
}
impl Deref for Client {
type Target = RpcClient;
fn deref(&self) -> &Self::Target {
&self.client
}
}
impl DerefMut for Client {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.client
}
}