use std::{io::Read, str::FromStr};
use serde::{Deserialize, Serialize};
use serde_json::Value;
use solana_sdk::{account::WritableAccount, clock::Epoch, pubkey::Pubkey};
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct UiDataSliceConfig {
pub offset: usize,
pub length: usize,
}
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct UiAccount {
pub lamports: u64,
pub data: UiAccountData,
pub owner: String,
pub executable: bool,
pub rent_epoch: Epoch,
}
impl UiAccount {
pub fn decode<T: WritableAccount>(&self) -> Option<T> {
let data = match &self.data {
UiAccountData::Json(_) => None,
UiAccountData::LegacyBinary(blob) => bs58::decode(blob).into_vec().ok(),
UiAccountData::Binary(blob, encoding) => match encoding {
UiAccountEncoding::Base58 => bs58::decode(blob).into_vec().ok(),
UiAccountEncoding::Base64 => base64::decode(blob).ok(),
UiAccountEncoding::Base64Zstd => base64::decode(blob).ok().and_then(|zstd_data| {
let mut data = vec![];
zstd::stream::read::Decoder::new(zstd_data.as_slice())
.and_then(|mut reader| reader.read_to_end(&mut data))
.map(|_| data)
.ok()
}),
UiAccountEncoding::Binary | UiAccountEncoding::JsonParsed => None,
},
}?;
Some(T::create(
self.lamports,
data,
Pubkey::from_str(&self.owner).ok()?,
self.executable,
self.rent_epoch,
))
}
}
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct ParsedAccount {
pub program: String,
pub parsed: Value,
pub space: u64,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase", untagged)]
pub enum UiAccountData {
LegacyBinary(String), Json(ParsedAccount),
Binary(String, UiAccountEncoding),
}
#[derive(Serialize, Deserialize, Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[serde(rename_all = "camelCase")]
pub enum UiAccountEncoding {
Binary, Base58,
Base64,
JsonParsed,
#[serde(rename = "base64+zstd")]
Base64Zstd,
}
pub type StringAmount = String;
pub type StringDecimals = String;
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct UiTokenAmount {
pub ui_amount: Option<f64>,
pub decimals: u8,
pub amount: StringAmount,
pub ui_amount_string: StringDecimals,
}