waffles-solana-runtime 1.15.0

use {
    crate::{
        accounts_index::{AccountIndex, IndexKey, ScanConfig, ScanResult},
        bank::Bank,
    },
    log::*,
    solana_sdk::{
        account::ReadableAccount,
        pubkey::Pubkey,
        stake::{self, state::StakeState},
    },
    solana_stake_program::stake_state,
    std::{collections::HashSet, sync::Arc},
};

pub struct NonCirculatingSupply {
    pub lamports: u64,
    pub accounts: Vec<Pubkey>,
}

pub fn calculate_non_circulating_supply(bank: &Arc<Bank>) -> ScanResult<NonCirculatingSupply> {
    debug!("Updating Bank supply, epoch: {}", bank.epoch());
    let mut non_circulating_accounts_set: HashSet<Pubkey> = HashSet::new();

    for key in non_circulating_accounts() {
        non_circulating_accounts_set.insert(key);
    }
    let withdraw_authority_list = withdraw_authority();

    let clock = bank.clock();
    let config = &ScanConfig::default();
    let stake_accounts = if bank
        .rc
        .accounts
        .accounts_db
        .account_indexes
        .contains(&AccountIndex::ProgramId)
    {
        bank.get_filtered_indexed_accounts(
            &IndexKey::ProgramId(stake::program::id()),
            // The program-id account index checks for Account owner on inclusion. However, due to
            // the current AccountsDb implementation, an account may remain in storage as a
            // zero-lamport Account::Default() after being wiped and reinitialized in later
            // updates. We include the redundant filter here to avoid returning these accounts.
            |account| account.owner() == &stake::program::id(),
            config,
            None,
        )?
    } else {
        bank.get_program_accounts(&stake::program::id(), config)?
    };

    for (pubkey, account) in stake_accounts.iter() {
        let stake_account = stake_state::from(account).unwrap_or_default();
        match stake_account {
            StakeState::Initialized(meta) => {
                if meta.lockup.is_in_force(&clock, None)
                    || withdraw_authority_list.contains(&meta.authorized.withdrawer)
                {
                    non_circulating_accounts_set.insert(*pubkey);
                }
            }
            StakeState::Stake(meta, _stake) => {
                if meta.lockup.is_in_force(&clock, None)
                    || withdraw_authority_list.contains(&meta.authorized.withdrawer)
                {
                    non_circulating_accounts_set.insert(*pubkey);
                }
            }
            _ => {}
        }
    }

    let lamports = non_circulating_accounts_set
        .iter()
        .map(|pubkey| bank.get_balance(pubkey))
        .sum();

    Ok(NonCirculatingSupply {
        lamports,
        accounts: non_circulating_accounts_set.into_iter().collect(),
    })
}

// Mainnet-beta accounts that should be considered non-circulating
solana_sdk::pubkeys!(
    non_circulating_accounts,
    [
        "9huDUZfxoJ7wGMTffUE7vh1xePqef7gyrLJu9NApncqA",
        "GK2zqSsXLA2rwVZk347RYhh6jJpRsCA69FjLW93ZGi3B",
        "CWeRmXme7LmbaUWTZWFLt6FMnpzLCHaQLuR2TdgFn4Lq",
        "HCV5dGFJXRrJ3jhDYA4DCeb9TEDTwGGYXtT3wHksu2Zr",
        "14FUT96s9swbmH7ZjpDvfEDywnAYy9zaNhv4xvezySGu",
        "HbZ5FfmKWNHC7uwk6TF1hVi6TCs7dtYfdjEcuPGgzFAg",
        "C7C8odR8oashR5Feyrq2tJKaXL18id1dSj2zbkDGL2C2",
        "Eyr9P5XsjK2NUKNCnfu39eqpGoiLFgVAv1LSQgMZCwiQ",
        "DE1bawNcRJB9rVm3buyMVfr8mBEoyyu73NBovf2oXJsJ",
        "CakcnaRDHka2gXyfbEd2d3xsvkJkqsLw2akB3zsN1D2S",
        "7Np41oeYqPefeNQEHSv1UDhYrehxin3NStELsSKCT4K2",
        "GdnSyH3YtwcxFvQrVVJMm1JhTS4QVX7MFsX56uJLUfiZ",
        "Mc5XB47H3DKJHym5RLa9mPzWv5snERsF3KNv5AauXK8",
        "7cvkjYAkUYs4W8XcXsca7cBrEGFeSUjeZmKoNBvEwyri",
        "AG3m2bAibcY8raMt4oXEGqRHwX4FWKPPJVjZxn1LySDX",
        "5XdtyEDREHJXXW1CTtCsVjJRjBapAwK78ZquzvnNVRrV",
        "6yKHERk8rsbmJxvMpPuwPs1ct3hRiP7xaJF2tvnGU6nK",
        "CHmdL15akDcJgBkY6BP3hzs98Dqr6wbdDC5p8odvtSbq",
        "FR84wZQy3Y3j2gWz6pgETUiUoJtreMEuWfbg6573UCj9",
        "5q54XjQ7vDx4y6KphPeE97LUNiYGtP55spjvXAWPGBuf",
        "3o6xgkJ9sTmDeQWyfj3sxwon18fXJB9PV5LDc8sfgR4a",
        "GumSE5HsMV5HCwBTv2D2D81yy9x17aDkvobkqAfTRgmo",
        "AzVV9ZZDxTgW4wWfJmsG6ytaHpQGSe1yz76Nyy84VbQF",
        "8CUUMKYNGxdgYio5CLHRHyzMEhhVRMcqefgE6dLqnVRK",
        "CQDYc4ET2mbFhVpgj41gXahL6Exn5ZoPcGAzSHuYxwmE",
        "5PLJZLJiRR9vf7d1JCCg7UuWjtyN9nkab9uok6TqSyuP",
        "7xJ9CLtEAcEShw9kW2gSoZkRWL566Dg12cvgzANJwbTr",
        "BuCEvc9ze8UoAQwwsQLy8d447C8sA4zeVtVpc6m5wQeS",
        "8ndGYFjav6NDXvzYcxs449Aub3AxYv4vYpk89zRDwgj7",
        "8W58E8JVJjH1jCy5CeHJQgvwFXTyAVyesuXRZGbcSUGG",
        "GNiz4Mq886bTNDT3pijGsu2gbw6it7sqrwncro45USeB",
        "GhsotwFMH6XUrRLJCxcx62h7748N2Uq8mf87hUGkmPhg",
        "Fgyh8EeYGZtbW8sS33YmNQnzx54WXPrJ5KWNPkCfWPot",
        "8UVjvYyoqP6sqcctTso3xpCdCfgTMiv3VRh7vraC2eJk",
        "BhvLngiqqKeZ8rpxch2uGjeCiC88zzewoWPRuoxpp1aS",
        "63DtkW7zuARcd185EmHAkfF44bDcC2SiTSEj2spLP3iA",
        "GvpCiTgq9dmEeojCDBivoLoZqc4AkbUDACpqPMwYLWKh",
        "7Y8smnoUrYKGGuDq2uaFKVxJYhojgg7DVixHyAtGTYEV",
        "DUS1KxwUhUyDKB4A81E8vdnTe3hSahd92Abtn9CXsEcj",
        "F9MWFw8cnYVwsRq8Am1PGfFL3cQUZV37mbGoxZftzLjN",
        "8vqrX3H2BYLaXVintse3gorPEM4TgTwTFZNN1Fm9TdYs",
        "CUageMFi49kzoDqtdU8NvQ4Bq3sbtJygjKDAXJ45nmAi",
        "5smrYwb1Hr2T8XMnvsqccTgXxuqQs14iuE8RbHFYf2Cf",
        "xQadXQiUTCCFhfHjvQx1hyJK6KVWr1w2fD6DT3cdwj7",
        "8DE8fqPfv1fp9DHyGyDFFaMjpopMgDeXspzoi9jpBJjC",
        "3itU5ME8L6FDqtMiRoUiT1F7PwbkTtHBbW51YWD5jtjm",
        "AsrYX4FeLXnZcrjcZmrASY2Eq1jvEeQfwxtNTxS5zojA",
        "8rT45mqpuDBR1vcnDc9kwP9DrZAXDR4ZeuKWw3u1gTGa",
        "nGME7HgBT6tAJN1f6YuCCngpqT5cvSTndZUVLjQ4jwA",
        "CzAHrrrHKx9Lxf6wdCMrsZkLvk74c7J2vGv8VYPUmY6v",
        "AzHQ8Bia1grVVbcGyci7wzueSWkgvu7YZVZ4B9rkL5P6",
        "FiWYY85b58zEEcPtxe3PuqzWPjqBJXqdwgZeqSBmT9Cn",
        "GpxpMVhrBBBEYbEJxdR62w3daWz444V7m6dxYDZKH77D",
        "3bTGcGB9F98XxnrBNftmmm48JGfPgi5sYxDEKiCjQYk3",
        "8pNBEppa1VcFAsx4Hzq9CpdXUXZjUXbvQwLX2K7QsCwb",
        "HKJgYGTTYYR2ZkfJKHbn58w676fKueQXmvbtpyvrSM3N",
        "3jnknRabs7G2V9dKhxd2KP85pNWXKXiedYnYxtySnQMs",
        "4sxwau4mdqZ8zEJsfryXq4QFYnMJSCp3HWuZQod8WU5k",
        "Fg12tB1tz8w6zJSQ4ZAGotWoCztdMJF9hqK8R11pakog",
        "GEWSkfWgHkpiLbeKaAnwvqnECGdRNf49at5nFccVey7c",
        "CND6ZjRTzaCFVdX7pSSWgjTfHZuhxqFDoUBqWBJguNoA",
        "2WWb1gRzuXDd5viZLQF7pNRR6Y7UiyeaPpaL35X6j3ve",
        "BUnRE27mYXN9p8H1Ay24GXhJC88q2CuwLoNU2v2CrW4W",
        "CsUqV42gVQLJwQsKyjWHqGkfHarxn9hcY4YeSjgaaeTd",
        "5khMKAcvmsFaAhoKkdg3u5abvKsmjUQNmhTNP624WB1F",
        "GpYnVDgB7dzvwSgsjQFeHznjG6Kt1DLBFYrKxjGU1LuD",
        "DQQGPtj7pphPHCLzzBuEyDDQByUcKGrsJdsH7SP3hAug",
        "FwfaykN7ACnsEUDHANzGHqTGQZMcGnUSsahAHUqbdPrz",
        "JCwT5Ygmq3VeBEbDjL8s8E82Ra2rP9bq45QfZE7Xyaq7",
        "H3Ni7vG1CsmJZdTvxF7RkAf9UM5qk4RsohJsmPvtZNnu",
        "CVgyXrbEd1ctEuvq11QdpnCQVnPit8NLdhyqXQHLprM2",
        "EAJJD6nDqtXcZ4DnQb19F9XEz8y8bRDHxbWbahatZNbL",
        "6o5v1HC7WhBnLfRHp8mQTtCP2khdXXjhuyGyYEoy2Suy",
        "3ZrsTmNM6AkMcqFfv3ryfhQ2jMfqP64RQbqVyAaxqhrQ",
        "6zw7em7uQdmMpuS9fGz8Nq9TLHa5YQhEKKwPjo5PwDK4",
        "CuatS6njAcfkFHnvai7zXCs7syA9bykXWsDCJEWfhjHG",
        "Hz9nydgN1k15wnwffKX7CSmZp4VFTnTwLXAEdomFGNXy",
        "Ep5Y58PaSyALPrdFxDVAdfKtVdP55vApvsWjb3jSmXsG",
        "EziVYi3Sv5kJWxmU77PnbrT8jmkVuqwdiFLLzZpLVEn7",
        "H1rt8KvXkNhQExTRfkY8r9wjZbZ8yCih6J4wQ5Fz9HGP",
        "6nN69B4uZuESZYxr9nrLDjmKRtjDZQXrehwkfQTKw62U",
        "Hm9JW7of5i9dnrboS8pCUCSeoQUPh7JsP1rkbJnW7An4",
        "5D5NxsNVTgXHyVziwV7mDFwVDS6voaBsyyGxUbhQrhNW",
        "EMAY24PrS6rWfvpqffFCsTsFJypeeYYmtUc26wdh3Wup",
        "Br3aeVGapRb2xTq17RU2pYZCoJpWA7bq6TKBCcYtMSmt",
        "BUjkdqUuH5Lz9XzcMcR4DdEMnFG6r8QzUMBm16Rfau96",
        "Es13uD2p64UVPFpEWfDtd6SERdoNR2XVgqBQBZcZSLqW",
        "AVYpwVou2BhdLivAwLxKPALZQsY7aZNkNmGbP2fZw7RU",
        "DrKzW5koKSZp4mg4BdHLwr72MMXscd2kTiWgckCvvPXz",
        "9hknftBZAQL4f48tWfk3bUEV5YSLcYYtDRqNmpNnhCWG",
        "GLUmCeJpXB8veNcchPwibkRYwCwvQbKodex5mEjrgToi",
        "9S2M3UYPpnPZTBtbcUvehYmiWFK3kBhwfzV2iWuwvaVy",
        "HUAkU5psJXZuw54Lrg1ksbXzHv2fzczQ9sNbmisVMeJU",
        "GK8R4uUmrawcREZ5xJy5dAzVV5V7aFvYg77id37pVTK",
        "4vuWt1oHRqLMhf8Nv1zyEXZsYaeK7dipwrfKLoYU9Riq",
        "EMhn1U3TMimW3bvWYbPUvN2eZnCfsuBN4LGWhzzYhiWR",
        "BsKsunvENxAraBrL77UfAn1Gi7unVEmQAdCbhsjUN6tU",
        "CTvhdUVf8KNyMbyEdnvRrBCHJjBKtQwkbj6zwoqcEssG",
        "3fV2GaDKa3pZxyDcpMh5Vrh2FVAMUiWUKbYmnBFv8As3",
        "4pV47TiPzZ7SSBPHmgUvSLmH9mMSe8tjyPhQZGbi1zPC",
        "P8aKfWQPeRnsZtpBrwWTYzyAoRk74KMz56xc6NEpC4J",
        "HuqDWJodFhAEWh6aWdsDVUqsjRket5DYXMYyDYtD8hdN",
        "Ab1UcdsFXZVnkSt1Z3vcYU65GQk5MvCbs54SviaiaqHb",
        "Dc2oHxFXQaC2QfLStuU7txtD3U5HZ82MrCSGDooWjbsv",
        "3iPvAS4xdhYr6SkhVDHCLr7tJjMAFK4wvvHWJxFQVg15",
        "GmyW1nqYcrw7P7JqrcyP9ivU9hYNbrgZ1r5SYJJH41Fs",
        "E8jcgWvrvV7rwYHJThwfiBeQ8VAH4FgNEEMG9aAuCMAq",
        "CY7X5o3Wi2eQhTocLmUS6JSWyx1NinBfW7AXRrkRCpi8",
        "HQJtLqvEGGxgNYfRXUurfxV8E1swvCnsbC3456ik27HY",
        "9xbcBZoGYFnfJZe81EDuDYKUm8xGkjzW8z4EgnVhNvsv",
    ]
);

// Withdraw authority for autostaked accounts on mainnet-beta
solana_sdk::pubkeys!(
    withdraw_authority,
    [
        "8CUUMKYNGxdgYio5CLHRHyzMEhhVRMcqefgE6dLqnVRK",
        "3FFaheyqtyAXZSYxDzsr5CVKvJuvZD1WE1VEsBtDbRqB",
        "FdGYQdiRky8NZzN9wZtczTBcWLYYRXrJ3LMDhqDPn5rM",
        "4e6KwQpyzGQPfgVr5Jn3g5jLjbXB4pKPa2jRLohEb1QA",
        "FjiEiVKyMGzSLpqoB27QypukUfyWHrwzPcGNtopzZVdh",
        "DwbVjia1mYeSGoJipzhaf4L5hfer2DJ1Ys681VzQm5YY",
        "GeMGyvsTEsANVvcT5cme65Xq5MVU8fVVzMQ13KAZFNS2",
        "Bj3aQ2oFnZYfNR1njzRjmWizzuhvfcYLckh76cqsbuBM",
        "4ZJhPQAgUseCsWhKvJLTmmRRUV74fdoTpQLNfKoekbPY",
        "HXdYQ5gixrY2H6Y9gqsD8kPM2JQKSaRiohDQtLbZkRWE",
    ]
);

#[cfg(test)]
mod tests {
    use {
        super::*,
        crate::genesis_utils::genesis_sysvar_and_builtin_program_lamports,
        solana_sdk::{
            account::{Account, AccountSharedData},
            epoch_schedule::EpochSchedule,
            genesis_config::{ClusterType, GenesisConfig},
            stake::state::{Authorized, Lockup, Meta},
        },
        std::{collections::BTreeMap, sync::Arc},
    };

    fn new_from_parent(parent: &Arc<Bank>) -> Bank {
        Bank::new_from_parent(parent, &Pubkey::default(), parent.slot() + 1)
    }

    #[test]
    fn test_calculate_non_circulating_supply() {
        let mut accounts: BTreeMap<Pubkey, Account> = BTreeMap::new();
        let balance = 10;
        let num_genesis_accounts = 10;
        for _ in 0..num_genesis_accounts {
            accounts.insert(
                solana_sdk::pubkey::new_rand(),
                Account::new(balance, 0, &Pubkey::default()),
            );
        }
        let non_circulating_accounts = non_circulating_accounts();
        let num_non_circulating_accounts = non_circulating_accounts.len() as u64;
        for key in non_circulating_accounts.clone() {
            accounts.insert(key, Account::new(balance, 0, &Pubkey::default()));
        }

        let num_stake_accounts = 3;
        for _ in 0..num_stake_accounts {
            let pubkey = solana_sdk::pubkey::new_rand();
            let meta = Meta {
                authorized: Authorized::auto(&pubkey),
                lockup: Lockup {
                    epoch: 1,
                    ..Lockup::default()
                },
                ..Meta::default()
            };
            let stake_account = Account::new_data_with_space(
                balance,
                &StakeState::Initialized(meta),
                StakeState::size_of(),
                &stake::program::id(),
            )
            .unwrap();
            accounts.insert(pubkey, stake_account);
        }

        let slots_per_epoch = 32;
        let genesis_config = GenesisConfig {
            accounts,
            epoch_schedule: EpochSchedule::new(slots_per_epoch),
            cluster_type: ClusterType::MainnetBeta,
            ..GenesisConfig::default()
        };
        let mut bank = Arc::new(Bank::new_for_tests(&genesis_config));
        assert_eq!(
            bank.capitalization(),
            (num_genesis_accounts + num_non_circulating_accounts + num_stake_accounts) * balance
                + genesis_sysvar_and_builtin_program_lamports(),
        );

        let non_circulating_supply = calculate_non_circulating_supply(&bank).unwrap();
        assert_eq!(
            non_circulating_supply.lamports,
            (num_non_circulating_accounts + num_stake_accounts) * balance
        );
        assert_eq!(
            non_circulating_supply.accounts.len(),
            num_non_circulating_accounts as usize + num_stake_accounts as usize
        );

        bank = Arc::new(new_from_parent(&bank));
        let new_balance = 11;
        for key in non_circulating_accounts {
            bank.store_account(
                &key,
                &AccountSharedData::new(new_balance, 0, &Pubkey::default()),
            );
        }
        let non_circulating_supply = calculate_non_circulating_supply(&bank).unwrap();
        assert_eq!(
            non_circulating_supply.lamports,
            (num_non_circulating_accounts * new_balance) + (num_stake_accounts * balance)
        );
        assert_eq!(
            non_circulating_supply.accounts.len(),
            num_non_circulating_accounts as usize + num_stake_accounts as usize
        );

        // Advance bank an epoch, which should unlock stakes
        for _ in 0..slots_per_epoch {
            bank = Arc::new(new_from_parent(&bank));
        }
        assert_eq!(bank.epoch(), 1);
        let non_circulating_supply = calculate_non_circulating_supply(&bank).unwrap();
        assert_eq!(
            non_circulating_supply.lamports,
            num_non_circulating_accounts * new_balance
        );
        assert_eq!(
            non_circulating_supply.accounts.len(),
            num_non_circulating_accounts as usize
        );
    }
}