multiversx_sc_scenario/whitebox_legacy/

contract_obj_wrapper.rs

use std::{collections::HashMap, path::PathBuf, str::FromStr};

use crate::{
    ScenarioWorld,
    api::DebugApi,
    executor::debug::{
        ContractContainer, ContractDebugInstance, ContractDebugStack, ContractDebugWhiteboxLambda,
    },
    multiversx_sc::{
        codec::{TopDecode, TopEncode},
        contract_base::{CallableContract, ContractBase},
        types::{EsdtLocalRole, heap::Address},
    },
    scenario_model::{Account, BytesValue, ScCallStep, SetStateStep},
    testing_framework::raw_converter::bytes_to_hex,
};
use multiversx_chain_scenario_format::interpret_trait::InterpretableFrom;
use multiversx_chain_vm::host::context::{TxFunctionName, TxResult};
use multiversx_sc::types::{BigUint, H256, TimestampMillis, TimestampSeconds};
use num_traits::Zero;

use super::{
    AddressFactory, MandosGenerator, ScQueryMandos,
    tx_mandos::{ScCallMandos, TxExpectMandos},
};

pub use multiversx_chain_vm::host::context::TxTokenTransfer;

#[derive(Clone)]
pub struct ContractObjWrapper<
    CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
    ContractObjBuilder: 'static + Copy + Fn() -> CB,
> {
    pub(crate) address: Address,
    pub(crate) obj_builder: ContractObjBuilder,
}

impl<CB, ContractObjBuilder> ContractObjWrapper<CB, ContractObjBuilder>
where
    CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
    ContractObjBuilder: 'static + Copy + Fn() -> CB,
{
    pub(crate) fn new(address: Address, obj_builder: ContractObjBuilder) -> Self {
        ContractObjWrapper {
            address,
            obj_builder,
        }
    }

    pub fn address_ref(&self) -> &Address {
        &self.address
    }
}

pub struct BlockchainStateWrapper {
    world: ScenarioWorld,
    address_factory: AddressFactory,
    address_to_code_path: HashMap<Address, Vec<u8>>,
    current_tx_id: u64,
    workspace_path: PathBuf,
}

impl BlockchainStateWrapper {
    #[allow(clippy::new_without_default)]
    pub fn new() -> Self {
        let mut current_dir = std::env::current_dir().unwrap();
        current_dir.push(PathBuf::from_str("scenarios/").unwrap());

        let mut world = ScenarioWorld::debugger();
        world.start_trace();

        BlockchainStateWrapper {
            world,
            address_factory: AddressFactory::new(),
            address_to_code_path: HashMap::new(),
            current_tx_id: 0,
            workspace_path: current_dir,
        }
    }

    pub fn write_mandos_output(mut self, file_name: &str) {
        let mut full_path = self.workspace_path;
        full_path.push(file_name);

        if let Some(trace) = &mut self.world.get_mut_debugger_backend().trace {
            trace.write_scenario_trace(&full_path);
        }
    }

    pub fn check_egld_balance(&self, address: &Address, expected_balance: &num_bigint::BigUint) {
        let actual_balance = match &self.world.get_state().accounts.get(address) {
            Some(acc) => acc.egld_balance.clone(),
            None => num_bigint::BigUint::zero(),
        };

        assert!(
            expected_balance == &actual_balance,
            "EGLD balance mismatch for address {}\n Expected: {}\n Have: {}\n",
            address_to_hex(address),
            expected_balance,
            actual_balance
        );
    }

    pub fn check_esdt_balance(
        &self,
        address: &Address,
        token_id: &[u8],
        expected_balance: &num_bigint::BigUint,
    ) {
        let actual_balance = match &self.world.get_state().accounts.get(address) {
            Some(acc) => acc.esdt.get_esdt_balance(token_id, 0),
            None => num_bigint::BigUint::zero(),
        };

        assert!(
            expected_balance == &actual_balance,
            "ESDT balance mismatch for address {}\n Token: {}\n Expected: {}\n Have: {}\n",
            address_to_hex(address),
            String::from_utf8(token_id.to_vec()).unwrap(),
            expected_balance,
            actual_balance
        );
    }

    pub fn check_nft_balance<T>(
        &self,
        address: &Address,
        token_id: &[u8],
        nonce: u64,
        expected_balance: &num_bigint::BigUint,
        opt_expected_attributes: Option<&T>,
    ) where
        T: TopEncode + TopDecode + PartialEq + core::fmt::Debug,
    {
        let (actual_balance, actual_attributes_serialized) =
            match &self.world.get_state().accounts.get(address) {
                Some(acc) => {
                    let esdt_data = acc.esdt.get_by_identifier_or_default(token_id);
                    let opt_instance = esdt_data.instances.get_by_nonce(nonce);

                    match opt_instance {
                        Some(instance) => (
                            instance.balance.clone(),
                            instance.metadata.attributes.clone(),
                        ),
                        None => (num_bigint::BigUint::zero(), Vec::new()),
                    }
                }
                None => (num_bigint::BigUint::zero(), Vec::new()),
            };

        assert!(
            expected_balance == &actual_balance,
            "ESDT NFT balance mismatch for address {}\n Token: {}, nonce: {}\n Expected: {}\n Have: {}\n",
            address_to_hex(address),
            String::from_utf8(token_id.to_vec()).unwrap(),
            nonce,
            expected_balance,
            actual_balance
        );

        if let Some(expected_attributes) = opt_expected_attributes {
            let actual_attributes = T::top_decode(actual_attributes_serialized).unwrap();
            assert!(
                expected_attributes == &actual_attributes,
                "ESDT NFT attributes mismatch for address {}\n Token: {}, nonce: {}\n Expected: {:?}\n Have: {:?}\n",
                address_to_hex(address),
                String::from_utf8(token_id.to_vec()).unwrap(),
                nonce,
                expected_attributes,
                actual_attributes,
            );
        }
    }
}

impl BlockchainStateWrapper {
    pub fn create_user_account(&mut self, egld_balance: &num_bigint::BigUint) -> Address {
        let address = self.address_factory.new_address();
        self.world
            .create_account_raw(&address, BigUint::from(egld_balance));

        address
    }

    pub fn create_user_account_fixed_address(
        &mut self,
        address: &Address,
        egld_balance: &num_bigint::BigUint,
    ) {
        self.world
            .create_account_raw(address, BigUint::from(egld_balance));
    }

    pub fn create_sc_account<CB, ContractObjBuilder>(
        &mut self,
        egld_balance: &num_bigint::BigUint,
        owner: Option<&Address>,
        obj_builder: ContractObjBuilder,
        contract_wasm_path: &str,
    ) -> ContractObjWrapper<CB, ContractObjBuilder>
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
    {
        let address = self.address_factory.new_sc_address();
        self.create_sc_account_fixed_address(
            &address,
            egld_balance,
            owner,
            obj_builder,
            contract_wasm_path,
        )
    }

    pub fn create_sc_account_fixed_address<CB, ContractObjBuilder>(
        &mut self,
        address: &Address,
        egld_balance: &num_bigint::BigUint,
        owner: Option<&Address>,
        obj_builder: ContractObjBuilder,
        contract_wasm_path: &str,
    ) -> ContractObjWrapper<CB, ContractObjBuilder>
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
    {
        if !address.is_smart_contract_address() {
            panic!("Invalid SC Address: {:?}", address_to_hex(address))
        }

        let mut wasm_full_path = std::env::current_dir().unwrap();
        wasm_full_path.push(PathBuf::from_str(contract_wasm_path).unwrap());

        let path_diff =
            pathdiff::diff_paths(wasm_full_path.clone(), self.workspace_path.clone()).unwrap();
        let path_str = path_diff.to_str().unwrap();

        let contract_code_expr_str = format!("file:{path_str}");
        let contract_code_expr = BytesValue::interpret_from(
            contract_code_expr_str.clone(),
            &self.world.interpreter_context(),
        );

        let mut account = Account::new()
            .balance(egld_balance)
            .code(contract_code_expr.clone());
        if let Some(owner) = owner {
            account = account.owner(owner);
        }

        self.world
            .set_state_step(SetStateStep::new().put_account(address, account));

        self.address_to_code_path
            .insert(address.clone(), contract_code_expr_str.into_bytes());

        let contains_contract = self
            .world
            .get_mut_debugger_backend()
            .vm_runner
            .contract_map_ref
            .lock()
            .contains_contract(contract_code_expr.value.as_slice());
        if !contains_contract {
            let contract_obj = create_contract_obj_box(obj_builder);

            self.world
                .get_mut_debugger_backend()
                .vm_runner
                .contract_map_ref
                .lock()
                .register_contract(
                    contract_code_expr.value,
                    ContractContainer::new(contract_obj, None, false),
                );
        }

        ContractObjWrapper::new(address.clone(), obj_builder)
    }

    pub fn create_account_raw(
        &mut self,
        address: &Address,
        egld_balance: &num_bigint::BigUint,
        _owner: Option<&Address>,
        _sc_identifier: Option<Vec<u8>>,
        _sc_mandos_path_expr: Option<Vec<u8>>,
    ) {
        self.world
            .create_account_raw(address, BigUint::from(egld_balance));
    }

    // Has to be used before performing a deploy from a SC
    // The returned SC wrapper cannot be used before the deploy is actually executed
    pub fn prepare_deploy_from_sc<CB, ContractObjBuilder>(
        &mut self,
        deployer: &Address,
        obj_builder: ContractObjBuilder,
    ) -> ContractObjWrapper<CB, ContractObjBuilder>
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
    {
        let deployer_acc = self
            .world
            .get_state()
            .accounts
            .get(deployer)
            .unwrap()
            .clone();

        let new_sc_address = self.address_factory.new_sc_address();
        self.world.get_mut_state().put_new_address(
            deployer.clone(),
            deployer_acc.nonce,
            new_sc_address.clone(),
        );

        ContractObjWrapper::new(new_sc_address, obj_builder)
    }

    pub fn upgrade_wrapper<OldCB, OldContractObjBuilder, NewCB, NewContractObjBuilder>(
        &self,
        old_wrapper: ContractObjWrapper<OldCB, OldContractObjBuilder>,
        new_builder: NewContractObjBuilder,
    ) -> ContractObjWrapper<NewCB, NewContractObjBuilder>
    where
        OldCB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        OldContractObjBuilder: 'static + Copy + Fn() -> OldCB,
        NewCB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        NewContractObjBuilder: 'static + Copy + Fn() -> NewCB,
    {
        ContractObjWrapper::new(old_wrapper.address, new_builder)
    }

    pub fn set_egld_balance(&mut self, address: &Address, balance: &num_bigint::BigUint) {
        self.world.set_egld_balance(address, BigUint::from(balance));
    }

    pub fn set_esdt_balance(
        &mut self,
        address: &Address,
        token_id: &[u8],
        balance: &num_bigint::BigUint,
    ) {
        self.world
            .set_esdt_balance(address, token_id, BigUint::from(balance));
    }

    pub fn set_nft_balance<T: TopEncode>(
        &mut self,
        address: &Address,
        token_id: &[u8],
        nonce: u64,
        balance: &num_bigint::BigUint,
        attributes: &T,
    ) {
        self.world.set_nft_balance_all_properties(
            address,
            token_id,
            nonce,
            BigUint::from(balance),
            attributes,
            0,
            None::<Address>,
            None,
            None,
            &[],
        );
    }

    pub fn set_developer_rewards(
        &mut self,
        address: &Address,
        developer_rewards: num_bigint::BigUint,
    ) {
        self.world
            .set_developer_rewards(address, &developer_rewards);
    }

    #[allow(clippy::too_many_arguments)]
    pub fn set_nft_balance_all_properties<T: TopEncode>(
        &mut self,
        address: &Address,
        token_id: &[u8],
        nonce: u64,
        balance: &num_bigint::BigUint,
        attributes: &T,
        royalties: u64,
        creator: Option<&Address>,
        name: Option<&[u8]>,
        hash: Option<&[u8]>,
        uris: &[Vec<u8>],
    ) {
        self.world.set_nft_balance_all_properties(
            address,
            token_id,
            nonce,
            BigUint::from(balance),
            attributes,
            royalties,
            creator,
            name,
            hash,
            uris,
        );
    }

    pub fn set_esdt_local_roles(
        &mut self,
        address: &Address,
        token_id: &[u8],
        roles: &[EsdtLocalRole],
    ) {
        self.world.set_esdt_local_roles(address, token_id, roles);
    }

    pub fn set_block_epoch(&mut self, block_epoch: u64) {
        self.world
            .set_state_step(SetStateStep::new().block_epoch(block_epoch));
    }

    pub fn set_block_nonce(&mut self, block_nonce: u64) {
        self.world
            .set_state_step(SetStateStep::new().block_nonce(block_nonce));
    }

    pub fn set_block_random_seed(&mut self, block_random_seed: &[u8; 48]) {
        self.world
            .set_state_step(SetStateStep::new().block_random_seed(block_random_seed.as_slice()));
    }

    pub fn set_block_round(&mut self, block_round: u64) {
        self.world
            .set_state_step(SetStateStep::new().block_round(block_round));
    }

    #[deprecated(since = "0.63.2", note = "Renamed to set_block_timestamp_seconds")]
    pub fn set_block_timestamp(&mut self, block_timestamp: u64) {
        self.set_block_timestamp_seconds(TimestampSeconds::new(block_timestamp));
    }

    pub fn set_block_timestamp_seconds(&mut self, block_timestamp: TimestampSeconds) {
        self.world
            .set_state_step(SetStateStep::new().block_timestamp_seconds(block_timestamp));
    }

    #[deprecated(since = "0.63.2", note = "Renamed to set_block_timestamp_millis")]
    pub fn set_block_timestamp_ms(&mut self, block_timestamp_ms: u64) {
        self.set_block_timestamp_millis(TimestampMillis::new(block_timestamp_ms));
    }

    pub fn set_block_timestamp_millis(&mut self, block_timestamp: TimestampMillis) {
        self.world
            .set_state_step(SetStateStep::new().block_timestamp_millis(block_timestamp));
    }

    pub fn set_prev_block_epoch(&mut self, block_epoch: u64) {
        self.world
            .set_state_step(SetStateStep::new().prev_block_epoch(block_epoch));
    }

    pub fn set_prev_block_nonce(&mut self, block_nonce: u64) {
        self.world
            .set_state_step(SetStateStep::new().prev_block_nonce(block_nonce));
    }

    pub fn set_prev_block_random_seed(&mut self, block_random_seed: &[u8; 48]) {
        self.world.set_state_step(
            SetStateStep::new().prev_block_random_seed(block_random_seed.as_slice()),
        );
    }

    pub fn set_prev_block_round(&mut self, block_round: u64) {
        self.world
            .set_state_step(SetStateStep::new().prev_block_round(block_round));
    }

    pub fn set_prev_block_timestamp(&mut self, block_timestamp: u64) {
        self.world
            .set_state_step(SetStateStep::new().prev_block_timestamp(block_timestamp));
    }

    pub fn add_mandos_sc_call(
        &mut self,
        sc_call: ScCallMandos,
        opt_expect: Option<TxExpectMandos>,
    ) {
        if let Some(trace) = &mut self.world.get_mut_debugger_backend().trace {
            MandosGenerator::new(&mut trace.scenario_trace, &mut self.current_tx_id)
                .create_tx(&sc_call, opt_expect.as_ref());
        }
    }

    pub fn add_mandos_sc_query(
        &mut self,
        sc_query: ScQueryMandos,
        opt_expect: Option<TxExpectMandos>,
    ) {
        if let Some(trace) = &mut self.world.get_mut_debugger_backend().trace {
            MandosGenerator::new(&mut trace.scenario_trace, &mut self.current_tx_id)
                .create_query(&sc_query, opt_expect.as_ref());
        }
    }

    pub fn add_mandos_set_account(&mut self, address: &Address) {
        if let Some(acc) = self.world.get_state().accounts.get(address).cloned() {
            let opt_contract_path = self.address_to_code_path.get(address);
            if let Some(trace) = &mut self.world.get_mut_debugger_backend().trace {
                MandosGenerator::new(&mut trace.scenario_trace, &mut self.current_tx_id)
                    .set_account(&acc, opt_contract_path.cloned());
            }
        }
    }

    pub fn add_mandos_check_account(&mut self, address: &Address) {
        if let Some(acc) = self.world.get_state().accounts.get(address).cloned() {
            if let Some(trace) = &mut self.world.get_mut_debugger_backend().trace {
                MandosGenerator::new(&mut trace.scenario_trace, &mut self.current_tx_id)
                    .check_account(&acc);
            }
        }
    }
}

impl BlockchainStateWrapper {
    pub fn execute_tx<CB, ContractObjBuilder, TxFn>(
        &mut self,
        caller: &Address,
        sc_wrapper: &ContractObjWrapper<CB, ContractObjBuilder>,
        egld_payment: &num_bigint::BigUint,
        tx_fn: TxFn,
    ) -> TxResult
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
        TxFn: FnOnce(CB),
    {
        self.execute_tx_any(caller, sc_wrapper, egld_payment, Vec::new(), tx_fn)
    }

    pub fn execute_esdt_transfer<CB, ContractObjBuilder, TxFn>(
        &mut self,
        caller: &Address,
        sc_wrapper: &ContractObjWrapper<CB, ContractObjBuilder>,
        token_id: &[u8],
        esdt_nonce: u64,
        esdt_amount: &num_bigint::BigUint,
        tx_fn: TxFn,
    ) -> TxResult
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
        TxFn: FnOnce(CB),
    {
        let esdt_transfer = vec![TxTokenTransfer {
            token_identifier: token_id.to_vec(),
            nonce: esdt_nonce,
            value: esdt_amount.clone(),
        }];
        self.execute_tx_any(
            caller,
            sc_wrapper,
            &num_bigint::BigUint::zero(),
            esdt_transfer,
            tx_fn,
        )
    }

    pub fn execute_esdt_multi_transfer<CB, ContractObjBuilder, TxFn>(
        &mut self,
        caller: &Address,
        sc_wrapper: &ContractObjWrapper<CB, ContractObjBuilder>,
        esdt_transfers: &[TxTokenTransfer],
        tx_fn: TxFn,
    ) -> TxResult
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
        TxFn: FnOnce(CB),
    {
        self.execute_tx_any(
            caller,
            sc_wrapper,
            &num_bigint::BigUint::zero(),
            esdt_transfers.to_vec(),
            tx_fn,
        )
    }

    pub fn execute_query<CB, ContractObjBuilder, TxFn>(
        &mut self,
        sc_wrapper: &ContractObjWrapper<CB, ContractObjBuilder>,
        query_fn: TxFn,
    ) -> TxResult
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
        TxFn: FnOnce(CB),
    {
        self.execute_tx(
            sc_wrapper.address_ref(),
            sc_wrapper,
            &num_bigint::BigUint::zero(),
            query_fn,
        )
    }

    // deduplicates code for execution
    fn execute_tx_any<CB, ContractObjBuilder, TxFn>(
        &mut self,
        caller: &Address,
        sc_wrapper: &ContractObjWrapper<CB, ContractObjBuilder>,
        egld_payment: &num_bigint::BigUint,
        esdt_payments: Vec<TxTokenTransfer>,
        tx_fn: TxFn,
    ) -> TxResult
    where
        CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
        ContractObjBuilder: 'static + Copy + Fn() -> CB,
        TxFn: FnOnce(CB),
    {
        let mut sc_call_step = ScCallStep::new()
            .from(caller)
            .to(sc_wrapper.address_ref())
            .function(TxFunctionName::WHITEBOX_CALL.as_str())
            .egld_value(egld_payment)
            .gas_limit("100,000,000")
            .no_expect();

        sc_call_step.explicit_tx_hash = Some(H256::zero());

        for esdt_payment in &esdt_payments {
            sc_call_step = sc_call_step.esdt_transfer(
                esdt_payment.token_identifier.as_slice(),
                esdt_payment.nonce,
                &esdt_payment.value,
            );
        }

        let sc = (sc_wrapper.obj_builder)();
        self.world
            .get_mut_debugger_backend()
            .vm_runner
            .perform_sc_call_lambda_and_check(
                &sc_call_step,
                ContractDebugWhiteboxLambda::new(TxFunctionName::WHITEBOX_LEGACY, || {
                    tx_fn(sc);
                })
                .panic_message(false),
            )
    }

    /// Creates a temporary DebugApi context to run lambda function.
    ///
    /// Restores previous context (if any) after finishing execution.
    pub fn execute_in_managed_environment<T, F>(&self, f: F) -> T
    where
        F: FnOnce() -> T,
    {
        ContractDebugStack::static_push(ContractDebugInstance::dummy());
        let result = f();
        let _ = ContractDebugStack::static_pop();

        result
    }
}

impl BlockchainStateWrapper {
    pub fn get_egld_balance(&self, address: &Address) -> num_bigint::BigUint {
        match self.world.get_state().accounts.get(address) {
            Some(acc) => acc.egld_balance.clone(),
            None => panic!(
                "get_egld_balance: Account {:?} does not exist",
                address_to_hex(address)
            ),
        }
    }

    pub fn get_esdt_balance(
        &self,
        address: &Address,
        token_id: &[u8],
        token_nonce: u64,
    ) -> num_bigint::BigUint {
        match self.world.get_state().accounts.get(address) {
            Some(acc) => acc.esdt.get_esdt_balance(token_id, token_nonce),
            None => panic!(
                "get_esdt_balance: Account {:?} does not exist",
                address_to_hex(address)
            ),
        }
    }

    pub fn get_nft_attributes<T: TopDecode>(
        &self,
        address: &Address,
        token_id: &[u8],
        token_nonce: u64,
    ) -> Option<T> {
        match self.world.get_state().accounts.get(address) {
            Some(acc) => match acc.esdt.get_by_identifier(token_id) {
                Some(esdt_data) => esdt_data
                    .instances
                    .get_by_nonce(token_nonce)
                    .map(|inst| T::top_decode(inst.metadata.attributes.clone()).unwrap()),
                None => None,
            },
            None => panic!(
                "get_nft_attributes: Account {:?} does not exist",
                address_to_hex(address)
            ),
        }
    }

    pub fn dump_state(&self) {
        for address in self.world.get_state().accounts.keys() {
            self.dump_state_for_account_hex_attributes(address);
            println!();
        }
    }

    #[inline]
    /// Prints the state for the account, with any token attributes as hex
    pub fn dump_state_for_account_hex_attributes(&self, address: &Address) {
        self.dump_state_for_account::<Vec<u8>>(address)
    }

    /// Prints the state for the account, with token attributes decoded as the provided type, if possible
    pub fn dump_state_for_account<AttributesType: 'static + TopDecode + core::fmt::Debug>(
        &self,
        address: &Address,
    ) {
        let account = match self.world.get_state().accounts.get(address) {
            Some(acc) => acc,
            None => panic!(
                "dump_state_for_account: Account {:?} does not exist",
                address_to_hex(address)
            ),
        };

        println!("State for account: {:?}", address_to_hex(address));
        println!("EGLD: {}", account.egld_balance);

        if !account.esdt.is_empty() {
            println!("ESDT Tokens:");
        }
        for (token_id, acc_esdt) in account.esdt.iter() {
            let token_id_str = String::from_utf8(token_id.to_vec()).unwrap();
            println!("  Token: {token_id_str}");

            for (token_nonce, instance) in acc_esdt.instances.get_instances() {
                if std::any::TypeId::of::<AttributesType>() == std::any::TypeId::of::<Vec<u8>>() {
                    print_token_balance_raw(
                        *token_nonce,
                        &instance.balance,
                        &instance.metadata.attributes,
                    );
                } else {
                    match AttributesType::top_decode(&instance.metadata.attributes[..]) {
                        core::result::Result::Ok(attr) => {
                            print_token_balance_specialized(*token_nonce, &instance.balance, &attr)
                        }
                        core::result::Result::Err(_) => print_token_balance_raw(
                            *token_nonce,
                            &instance.balance,
                            &instance.metadata.attributes,
                        ),
                    }
                }
            }
        }

        if !account.storage.is_empty() {
            println!();
            println!("Storage: ");
        }
        for (key, value) in &account.storage {
            let key_str = match String::from_utf8(key.to_vec()) {
                core::result::Result::Ok(s) => s,
                core::result::Result::Err(_) => bytes_to_hex(key),
            };
            let value_str = bytes_to_hex(value);

            println!("  {key_str}: {value_str}");
        }
    }
}

fn address_to_hex(address: &Address) -> String {
    hex::encode(address.as_bytes())
}

fn print_token_balance_raw(
    token_nonce: u64,
    token_balance: &num_bigint::BigUint,
    attributes: &[u8],
) {
    println!(
        "      Nonce {}, balance: {}, attributes: {}",
        token_nonce,
        token_balance,
        bytes_to_hex(attributes)
    );
}

fn print_token_balance_specialized<T: core::fmt::Debug>(
    token_nonce: u64,
    token_balance: &num_bigint::BigUint,
    attributes: &T,
) {
    println!("      Nonce {token_nonce}, balance: {token_balance}, attributes: {attributes:?}");
}

fn create_contract_obj_box<CB, ContractObjBuilder>(
    func: ContractObjBuilder,
) -> Box<dyn CallableContract>
where
    CB: ContractBase<Api = DebugApi> + CallableContract + 'static,
    ContractObjBuilder: 'static + Fn() -> CB,
{
    let c_base = func();
    Box::new(c_base)
}