2024-03-22 12:10:08 +01:00

107 lines
2.6 KiB
Rust

use rand::Rng;
use anyhow::Error as AnyhowError;
use sp_backend::silentpayments::Error as SpError;
use serde_json::Error as SerdeJsonError;
use serde::{Deserialize, Serialize};
use sp_backend::silentpayments::sending::SilentPaymentAddress;
use tsify::Tsify;
use wasm_bindgen::convert::FromWasmAbi;
use wasm_bindgen::prelude::*;
use sp_backend::spclient::SpendKey;
use sp_backend::spclient::{derive_keys_from_seed, OutputList, SpClient};
type ApiResult<T: FromWasmAbi> = Result<T, ApiError>;
const IS_TESTNET: bool = true;
#[derive(Debug)]
struct ApiError {
message: String,
}
impl From<AnyhowError> for ApiError {
fn from(value: AnyhowError) -> Self {
ApiError {message: value.to_string()}
}
}
impl From<SpError> for ApiError {
fn from(value: SpError) -> Self {
ApiError { message: value.to_string() }
}
}
impl From<SerdeJsonError> for ApiError {
fn from(value: SerdeJsonError) -> Self {
ApiError { message: value.to_string() }
}
}
impl Into<JsValue> for ApiError {
fn into(self) -> JsValue {
JsValue::from_str(&self.message)
}
}
#[derive(Tsify, Serialize, Deserialize)]
#[tsify(into_wasm_abi)]
#[allow(non_camel_case_types)]
pub struct generate_sp_wallet_return {
pub sp_client_json: String,
pub sp_outputs_json: String,
}
#[wasm_bindgen]
pub fn setup() {
wasm_logger::init(wasm_logger::Config::default());
}
#[wasm_bindgen]
pub fn generate_sp_wallet(
label: Option<String>,
birthday: u32,
is_testnet: bool,
) -> ApiResult<generate_sp_wallet_return> {
let mut seed = [0u8; 64];
rand::thread_rng().fill(&mut seed);
let (scan_sk, spend_sk) = derive_keys_from_seed(&seed, is_testnet)?;
let sp_client = SpClient::new(
label.unwrap_or("default".into()),
scan_sk,
SpendKey::Secret(spend_sk),
None,
IS_TESTNET,
)?;
let our_address: SilentPaymentAddress = sp_client.get_receiving_address().try_into()?;
log::info!(
"Created client for sp with address: {}",
our_address.to_string()
);
let sp_client_json = serde_json::to_string(&sp_client)?;
// Generate an empty outputs
let sp_outputs = OutputList::new(
our_address.get_scan_key(),
our_address.get_spend_key(),
birthday,
);
let sp_outputs_json = serde_json::to_string(&sp_outputs)?;
let res = generate_sp_wallet_return {
sp_client_json,
sp_outputs_json,
};
Ok(res)
}
#[wasm_bindgen]
pub fn get_receiving_address(sp_client: String) -> String {
let sp_client: SpClient = serde_json::from_str(&sp_client).unwrap();
sp_client.get_receiving_address()
}