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// Copyright 2021 IOTA Stiftung
// SPDX-License-Identifier: Apache-2.0
#[cfg(feature = "ledger_nano")]
use crate::client::secret::{ledger_nano::LedgerSecretManager, DowncastSecretManager};
use crate::{
client::secret::{GenerateAddressOptions, SecretManage},
types::block::address::Bech32Address,
wallet::account::{types::address::AccountAddress, Account},
};
#[cfg(all(feature = "events", feature = "ledger_nano"))]
use crate::{
types::block::address::ToBech32Ext,
wallet::events::types::{AddressData, WalletEvent},
};
impl<S: 'static + SecretManage> Account<S>
where
crate::wallet::Error: From<S::Error>,
{
/// Generate addresses and stores them in the account
/// ```ignore
/// let public_addresses = account.generate_ed25519_addresses(2, None).await?;
/// // internal addresses are used for remainder outputs, if the RemainderValueStrategy for transactions is set to ChangeAddress
/// let internal_addresses = account
/// .generate_ed25519_addresses(
/// 1,
/// Some(GenerateAddressOptions {
/// internal: true,
/// ..Default::default()
/// }),
/// )
/// .await?;
/// ```
pub async fn generate_ed25519_addresses(
&self,
amount: u32,
options: impl Into<Option<GenerateAddressOptions>> + Send,
) -> crate::wallet::Result<Vec<AccountAddress>> {
let options = options.into().unwrap_or_default();
log::debug!(
"[ADDRESS GENERATION] generating {amount} addresses, internal: {}",
options.internal
);
if amount == 0 {
return Ok(Vec::new());
}
let account_details = self.details().await;
// get the highest index for the public or internal addresses
let highest_current_index_plus_one = if options.internal {
account_details.internal_addresses.len() as u32
} else {
account_details.public_addresses.len() as u32
};
// get bech32_hrp
let bech32_hrp = {
match account_details.public_addresses.first() {
Some(address) => address.address.hrp,
None => self.client().get_bech32_hrp().await?,
}
};
let address_range = highest_current_index_plus_one..highest_current_index_plus_one + amount;
// If we don't sync, then we want to display the prompt on the ledger with the address. But the user
// needs to have it visible on the computer first, so we need to generate it without the
// prompt first
#[cfg(feature = "ledger_nano")]
let addresses = {
use crate::wallet::account::SecretManager;
let secret_manager = self.wallet.secret_manager.read().await;
if secret_manager
.downcast::<LedgerSecretManager>()
.or_else(|| {
secret_manager.downcast::<SecretManager>().and_then(|s| {
if let SecretManager::LedgerNano(n) = s {
Some(n)
} else {
None
}
})
})
.is_some()
{
#[cfg(feature = "events")]
let changed_options = {
// Change options so ledger will not show the prompt the first time
let mut changed_options = options;
changed_options.ledger_nano_prompt = false;
changed_options
};
let mut addresses = Vec::new();
for address_index in address_range {
#[cfg(feature = "events")]
{
// Generate without prompt to be able to display it
let address = self
.wallet
.secret_manager
.read()
.await
.generate_ed25519_addresses(
account_details.coin_type,
account_details.index,
address_index..address_index + 1,
Some(changed_options),
)
.await?;
self.emit(
account_details.index,
WalletEvent::LedgerAddressGeneration(AddressData {
address: address[0].to_bech32(bech32_hrp),
}),
)
.await;
}
// Generate with prompt so the user can verify
let address = self
.wallet
.secret_manager
.read()
.await
.generate_ed25519_addresses(
account_details.coin_type,
account_details.index,
address_index..address_index + 1,
Some(options),
)
.await?;
addresses.push(address[0]);
}
addresses
} else {
self.wallet
.secret_manager
.read()
.await
.generate_ed25519_addresses(
account_details.coin_type,
account_details.index,
address_range,
Some(options),
)
.await?
}
};
#[cfg(not(feature = "ledger_nano"))]
let addresses = self
.wallet
.secret_manager
.read()
.await
.generate_ed25519_addresses(
account_details.coin_type,
account_details.index,
address_range,
Some(options),
)
.await?;
drop(account_details);
let generate_addresses: Vec<AccountAddress> = addresses
.into_iter()
.enumerate()
.map(|(index, address)| AccountAddress {
address: Bech32Address::new(bech32_hrp, address),
key_index: highest_current_index_plus_one + index as u32,
internal: options.internal,
used: false,
})
.collect();
self.update_account_addresses(options.internal, generate_addresses.clone())
.await?;
Ok(generate_addresses)
}
/// Generate an internal address and store in the account, internal addresses are used for remainder outputs
pub(crate) async fn generate_remainder_address(&self) -> crate::wallet::Result<AccountAddress> {
let result = self
.generate_ed25519_addresses(1, Some(GenerateAddressOptions::internal()))
.await?
.first()
.ok_or(crate::wallet::Error::FailedToGetRemainder)?
.clone();
Ok(result)
}
}