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// Copyright 2021 IOTA Stiftung
// SPDX-License-Identifier: Apache-2.0
#[cfg(all(feature = "events", any(feature = "ledger_nano", feature = "ledger_nano")))]
use crate::wallet::events::types::{AddressData, WalletEvent};
use crate::{
client::secret::{GenerateAddressOptions, SecretManage, SecretManager},
types::block::address::Bech32Address,
wallet::account::{types::address::AccountAddress, Account},
};
impl Account {
/// Generate addresses and stores them in the account
/// ```ignore
/// let public_addresses = account.generate_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_addresses(
/// 1,
/// Some(GenerateAddressOptions {
/// internal: true,
/// ..Default::default()
/// }),
/// )
/// .await?;
/// ```
pub async fn generate_addresses(
&self,
amount: u32,
options: Option<GenerateAddressOptions>,
) -> crate::wallet::Result<Vec<AccountAddress>> {
let options = options.unwrap_or_default();
log::debug!(
"[ADDRESS GENERATION] generating {amount} addresses, internal: {}",
options.internal
);
if amount == 0 {
return Ok(vec![]);
}
let account_details = self.read().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.to_string(),
None => self.client.get_bech32_hrp().await?,
}
};
let address_range = highest_current_index_plus_one..highest_current_index_plus_one + amount;
let addresses = match &*self.secret_manager.read().await {
#[cfg(feature = "ledger_nano")]
SecretManager::LedgerNano(ledger_nano) => {
// 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
if options.ledger_nano_prompt {
#[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 = ledger_nano
.generate_addresses(
account_details.coin_type,
account_details.index,
address_index..address_index + 1,
Some(changed_options),
)
.await?;
self.event_emitter.lock().await.emit(
account_details.index,
WalletEvent::LedgerAddressGeneration(AddressData {
address: address[0].to_bech32(bech32_hrp.clone()),
}),
);
}
// Generate with prompt so the user can verify
let address = ledger_nano
.generate_addresses(
account_details.coin_type,
account_details.index,
address_index..address_index + 1,
Some(options),
)
.await?;
addresses.push(address[0]);
}
addresses
} else {
ledger_nano
.generate_addresses(
account_details.coin_type,
account_details.index,
address_range.clone(),
Some(options),
)
.await?
}
}
#[cfg(feature = "stronghold")]
SecretManager::Stronghold(stronghold) => {
stronghold
.generate_addresses(
account_details.coin_type,
account_details.index,
address_range,
Some(options),
)
.await?
}
SecretManager::Mnemonic(mnemonic) => {
mnemonic
.generate_addresses(
account_details.coin_type,
account_details.index,
address_range,
Some(options),
)
.await?
}
SecretManager::Placeholder(_) => vec![],
};
drop(account_details);
let generate_addresses: Vec<AccountAddress> = addresses
.into_iter()
.enumerate()
.map(|(index, address)| AccountAddress {
address: Bech32Address::new(bech32_hrp.clone(), address).unwrap(),
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_addresses(1, Some(GenerateAddressOptions::internal()))
.await?
.first()
.ok_or(crate::wallet::Error::FailedToGetRemainder)?
.clone();
Ok(result)
}
}