o2_deploy/

lib.rs

//! Contract deployment logic for the Fuel O2 exchange.
//!
//! This crate extracts the core deploy workflow from the `api` package,
//! making it reusable from both the API binary and the standalone `o2-deploy` CLI.

use anyhow::Context;
use fuel_core_client::client::types::primitives::{
    ContractId,
    Salt,
};
use fuel_core_types::fuel_types::BlockHeight;
use fuels::{
    accounts::{
        Account,
        ViewOnlyAccount,
    },
    prelude::Execution,
    types::{
        Identity,
        SizedAsciiString,
    },
};
use o2_api_types::{
    domain::book::{
        AssetConfig,
        MarketIdAssets,
        OrderBookConfig,
    },
    parse::HexDisplayFromStr,
};
use o2_tools::{
    order_book::OrderBookManager,
    order_book_deploy::{
        OrderBookBlacklist,
        OrderBookConfigurables,
        OrderBookDeploy,
        OrderBookDeployConfig,
        OrderBookWhitelist,
    },
    order_book_registry::{
        OrderBookRegistryDeployConfig,
        OrderBookRegistryManager,
    },
    trade_account_deploy::{
        DeployConfig,
        TradeAccountDeploy,
        TradeAccountDeployConfig,
        TradingAccountOracle,
    },
    trade_account_registry::{
        TradeAccountRegistryDeployConfig,
        TradeAccountRegistryManager,
    },
};
use serde_with::serde_as;
use std::ops::{
    Deref,
    DerefMut,
};

fn to_registry_market_id(m: &MarketIdAssets) -> o2_tools::order_book_registry::MarketId {
    o2_tools::order_book_registry::MarketId {
        base_asset: m.base_asset,
        quote_asset: m.quote_asset,
    }
}

// ---------------------------------------------------------------------------
// Types
// ---------------------------------------------------------------------------

#[serde_as]
#[derive(Debug, serde::Serialize, Clone, Default)]
pub struct MarketsConfigOutput {
    pub starting_height: u32,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_registry_id: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_registry_blob_id: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_oracle_id: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_root: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_proxy: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub trade_account_blob_id: ContractId,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub order_book_whitelist_id: Option<ContractId>,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub order_book_blacklist_id: Option<ContractId>,
    #[serde_as(as = "HexDisplayFromStr")]
    pub order_book_registry_id: ContractId,
    #[serde_as(as = "HexDisplayFromStr")]
    pub order_book_registry_blob_id: ContractId,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub fast_bridge_asset_registry_proxy_id: Option<ContractId>,
    pub pairs: Vec<OrderBookConfig>,
}

/// Intermediate type for deserializing order book configs with string-encoded numbers.
#[serde_as]
#[derive(Debug, Clone, serde::Deserialize)]
struct OrderBookConfigDeHelper {
    #[serde_as(as = "Option<serde_with::DisplayFromStr>")]
    blob_id: Option<ContractId>,
    #[serde_as(as = "Option<serde_with::DisplayFromStr>")]
    contract_id: Option<ContractId>,
    #[serde_as(as = "serde_with::DisplayFromStr")]
    taker_fee: u64,
    #[serde_as(as = "serde_with::DisplayFromStr")]
    maker_fee: u64,
    #[serde_as(as = "serde_with::DisplayFromStr")]
    min_order: u64,
    #[serde_as(as = "serde_with::DisplayFromStr")]
    dust: u64,
    price_window: u8,
    #[serde(default)]
    allow_fractional_price: bool,
    base: AssetConfig,
    quote: AssetConfig,
}

impl From<OrderBookConfigDeHelper> for OrderBookConfig {
    fn from(h: OrderBookConfigDeHelper) -> Self {
        let ids = MarketIdAssets {
            base_asset: h.base.asset,
            quote_asset: h.quote.asset,
        };
        let market_id = ids.market_id();
        OrderBookConfig {
            contract_id: h.contract_id,
            blob_id: h.blob_id,
            market_id,
            taker_fee: h.taker_fee,
            maker_fee: h.maker_fee,
            min_order: h.min_order,
            dust: h.dust,
            price_window: h.price_window,
            allow_fractional_price: h.allow_fractional_price,
            base: h.base,
            quote: h.quote,
        }
    }
}

#[derive(Debug, Clone, Default, serde::Serialize)]
pub struct MarketsConfigPartial {
    pub starting_height: u32,
    pub trade_account_registry_id: Option<ContractId>,
    pub order_book_registry_id: Option<ContractId>,
    pub trade_account_oracle_id: Option<ContractId>,
    pub order_book_whitelist_id: Option<ContractId>,
    pub order_book_blacklist_id: Option<ContractId>,
    pub fast_bridge_asset_registry_proxy_id: Option<ContractId>,
    pub pairs: Vec<OrderBookConfig>,
}

impl<'de> serde::Deserialize<'de> for MarketsConfigPartial {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: serde::Deserializer<'de>,
    {
        #[derive(serde::Deserialize, Default)]
        struct Helper {
            #[serde(default)]
            starting_height: u32,
            trade_account_registry_id: Option<ContractId>,
            order_book_registry_id: Option<ContractId>,
            trade_account_oracle_id: Option<ContractId>,
            order_book_whitelist_id: Option<ContractId>,
            order_book_blacklist_id: Option<ContractId>,
            fast_bridge_asset_registry_proxy_id: Option<ContractId>,
            #[serde(default)]
            pairs: Vec<OrderBookConfigDeHelper>,
        }
        let h = Helper::deserialize(deserializer)?;
        Ok(MarketsConfigPartial {
            starting_height: h.starting_height,
            trade_account_registry_id: h.trade_account_registry_id,
            order_book_registry_id: h.order_book_registry_id,
            trade_account_oracle_id: h.trade_account_oracle_id,
            order_book_whitelist_id: h.order_book_whitelist_id,
            order_book_blacklist_id: h.order_book_blacklist_id,
            fast_bridge_asset_registry_proxy_id: h.fast_bridge_asset_registry_proxy_id,
            pairs: h.pairs.into_iter().map(Into::into).collect(),
        })
    }
}

#[derive(Debug, Clone, Copy, Default)]
pub struct OwnershipTransferOptions {
    pub new_proxy_owner: Option<fuels::types::Address>,
    pub new_contract_owner: Option<fuels::types::Address>,
}

/// Parameters for a deploy invocation.
#[derive(Debug, Clone)]
pub struct DeployParams {
    pub deploy_config: MarketsConfigPartial,
    pub output: Option<String>,
    pub deploy_whitelist: bool,
    pub deploy_blacklist: bool,
    pub upgrade_bytecode: bool,
    pub new_proxy_owner: Option<fuels::types::Address>,
    pub new_contract_owner: Option<fuels::types::Address>,
}

// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------

/// Load a JSON config file, returning `T::default()` when the path is empty.
pub fn load_config_from_file<T>(config_path: &str) -> anyhow::Result<T>
where
    T: Default + serde::de::DeserializeOwned,
{
    if config_path.is_empty() {
        return Ok(T::default());
    }
    let current_dir = std::env::current_dir()?;
    let path = current_dir.join(config_path);
    tracing::info!("Loading config from {}", path.display());
    let file = std::fs::File::open(&path)?;
    let config: T = serde_json::from_reader(file)?;
    Ok(config)
}

// ---------------------------------------------------------------------------
// Core deploy logic
// ---------------------------------------------------------------------------

/// Deploy (or upgrade) the full set of O2 contracts.
///
/// The wallet type `W` must implement `Account + Clone + Signer` (e.g.
/// `fuels::prelude::WalletUnlocked` or the KMS-backed `O2Wallet` from the API).
pub async fn deploy<W>(
    wallet: W,
    params: DeployParams,
) -> anyhow::Result<MarketsConfigOutput>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    tracing::info!("Starting Fuel o2 Registries and Markets");
    let mut markets_config_partial = params.deploy_config.clone();
    let starting_height: BlockHeight = markets_config_partial.starting_height.into();
    let trade_account_oracle_id = markets_config_partial.trade_account_oracle_id;
    let order_book_registry_id = markets_config_partial.order_book_registry_id;
    let trade_account_registry_id = markets_config_partial.trade_account_registry_id;
    let fast_bridge_asset_registry_proxy_id =
        markets_config_partial.fast_bridge_asset_registry_proxy_id;

    let mut salt = Salt::zeroed();
    salt.deref_mut()[..4].copy_from_slice(&starting_height.deref().to_be_bytes());

    let (trade_account_oracle_deploy, trade_account_blob_id) =
        deploy_trade_account_oracle(
            wallet.clone(),
            params.upgrade_bytecode,
            trade_account_oracle_id,
            salt,
        )
        .await?;
    let (trade_account_registry, trade_account_registry_blob_id) =
        deploy_trade_account_registry(
            wallet.clone(),
            params.upgrade_bytecode,
            trade_account_oracle_deploy.clone(),
            trade_account_registry_id,
            salt,
        )
        .await?;
    let order_book_blacklist_id = deploy_order_book_blacklist(
        wallet.clone(),
        params.deploy_blacklist,
        markets_config_partial.order_book_blacklist_id,
        salt,
    )
    .await?;
    let order_book_whitelist_id = deploy_order_book_whitelist(
        wallet.clone(),
        params.deploy_whitelist,
        markets_config_partial.order_book_whitelist_id,
        salt,
    )
    .await?;
    let (order_book_registry, order_book_registry_blob_id) = deploy_order_book_registry(
        wallet.clone(),
        params.upgrade_bytecode,
        order_book_registry_id,
        salt,
    )
    .await?;
    let pairs = deploy_order_books(
        wallet.clone(),
        params.upgrade_bytecode,
        order_book_blacklist_id,
        order_book_whitelist_id,
        order_book_registry.clone(),
        &mut markets_config_partial.pairs,
        OwnershipTransferOptions {
            new_proxy_owner: params.new_proxy_owner,
            new_contract_owner: params.new_contract_owner,
        },
    )
    .await?;

    let order_book_registry_id = order_book_registry.contract_id;
    let trade_account_registry_id = trade_account_registry.contract_id;
    let trade_account_oracle_id = trade_account_oracle_deploy.oracle_id;

    let trade_account_proxy = trade_account_registry
        .registry
        .methods()
        .default_bytecode()
        .simulate(Execution::state_read_only())
        .await?
        .value
        .context(
            "Trade account registry default bytecode should exist after initialization",
        )?;
    let trade_account_root = trade_account_registry
        .registry
        .methods()
        .factory_bytecode_root()
        .simulate(Execution::state_read_only())
        .await?
        .value
        .context("Trade account registry factory bytecode root should exist after initialization")?;

    transfer_ownership(
        &wallet,
        &params,
        &order_book_registry,
        &trade_account_registry,
        &trade_account_oracle_deploy,
        order_book_blacklist_id,
        order_book_whitelist_id,
    )
    .await?;

    let deploy_result = MarketsConfigOutput {
        starting_height: starting_height.into(),
        trade_account_registry_id,
        trade_account_registry_blob_id,
        trade_account_proxy,
        trade_account_blob_id,
        trade_account_root: ContractId::from(trade_account_root.0),
        trade_account_oracle_id,
        order_book_whitelist_id,
        order_book_blacklist_id,
        order_book_registry_id,
        order_book_registry_blob_id,
        pairs,
        fast_bridge_asset_registry_proxy_id,
    };

    if let Some(output_path) = params.output {
        let json = serde_json::to_string_pretty(&deploy_result)?;
        tracing::info!("Deploy result saved to {}", output_path);
        std::fs::write(output_path, json)?;
    }

    Ok(deploy_result)
}

// ---------------------------------------------------------------------------
// Ownership transfer
// ---------------------------------------------------------------------------

async fn transfer_ownership<W>(
    wallet: &W,
    params: &DeployParams,
    order_book_registry: &OrderBookRegistryManager<W>,
    trade_account_registry: &TradeAccountRegistryManager<W>,
    trade_account_oracle_deploy: &TradeAccountDeploy<W>,
    order_book_blacklist_id: Option<ContractId>,
    order_book_whitelist_id: Option<ContractId>,
) -> anyhow::Result<()>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    if let Some(new_proxy_owner) = params.new_proxy_owner {
        let new_identity = Identity::Address(new_proxy_owner);
        tracing::info!(
            "Transferring OrderBookRegistry proxy ownership to {}",
            new_proxy_owner
        );
        order_book_registry
            .registry_proxy
            .methods()
            .set_owner(new_identity)
            .call()
            .await?;
        tracing::info!(
            "Transferring TradeAccountRegistry proxy ownership to {}",
            new_proxy_owner
        );
        trade_account_registry
            .registry_proxy
            .methods()
            .set_owner(new_identity)
            .call()
            .await?;
    }

    if let Some(new_contract_owner) = params.new_contract_owner {
        let new_identity = Identity::Address(new_contract_owner);
        tracing::info!(
            "Transferring TradeAccountOracle ownership to {}",
            new_contract_owner
        );
        trade_account_oracle_deploy
            .oracle
            .methods()
            .transfer_ownership(new_identity)
            .call()
            .await?;
        tracing::info!(
            "Transferring TradeAccountRegistry ownership to {}",
            new_contract_owner
        );
        trade_account_registry
            .registry
            .methods()
            .transfer_ownership(new_identity)
            .call()
            .await?;
        tracing::info!(
            "Transferring OrderBookRegistry ownership to {}",
            new_contract_owner
        );
        order_book_registry
            .registry
            .methods()
            .transfer_ownership(new_identity)
            .call()
            .await?;
        if let Some(blacklist_id) = order_book_blacklist_id {
            tracing::info!(
                "Transferring OrderBookBlacklist ownership to {}",
                new_contract_owner
            );
            OrderBookBlacklist::new(blacklist_id, wallet.clone())
                .methods()
                .transfer_ownership(new_identity)
                .call()
                .await?;
        }
        if let Some(whitelist_id) = order_book_whitelist_id {
            tracing::info!(
                "Transferring OrderBookWhitelist ownership to {}",
                new_contract_owner
            );
            OrderBookWhitelist::new(whitelist_id, wallet.clone())
                .methods()
                .transfer_ownership(new_identity)
                .call()
                .await?;
        }
    }

    Ok(())
}

// ---------------------------------------------------------------------------
// Internal deploy helpers
// ---------------------------------------------------------------------------

async fn deploy_order_book_blacklist<W>(
    deployer_wallet: W,
    deploy_blacklist: bool,
    order_book_blacklist_id: Option<ContractId>,
    salt: Salt,
) -> anyhow::Result<Option<ContractId>>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    match order_book_blacklist_id {
        Some(order_book_blacklist_id) => {
            tracing::info!(
                "Using existing OrderBookBlacklist: {}",
                order_book_blacklist_id
            );
            Ok(Some(order_book_blacklist_id))
        }
        None => {
            if !deploy_blacklist {
                return Ok(None);
            }
            tracing::info!("Deploying OrderBookBlacklist");
            let order_book_blacklist = OrderBookDeploy::deploy_order_book_blacklist(
                &deployer_wallet,
                &Identity::Address(ViewOnlyAccount::address(&deployer_wallet)),
                &OrderBookDeployConfig {
                    salt,
                    ..Default::default()
                },
            )
            .await?;
            tracing::info!("OrderBookBlacklist: {}", order_book_blacklist.contract_id());
            Ok(Some(order_book_blacklist.contract_id()))
        }
    }
}

async fn deploy_order_book_whitelist<W>(
    deployer_wallet: W,
    deploy_whitelist: bool,
    order_book_whitelist_id: Option<ContractId>,
    salt: Salt,
) -> anyhow::Result<Option<ContractId>>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    match (order_book_whitelist_id, deploy_whitelist) {
        (Some(order_book_whitelist_id), false)
        | (Some(order_book_whitelist_id), true) => {
            tracing::info!(
                "Using existing OrderBookWhitelist: {}",
                order_book_whitelist_id
            );
            Ok(Some(order_book_whitelist_id))
        }
        (None, false) => Ok(None),
        (None, true) => {
            tracing::info!("Deploying OrderBookWhitelist");
            let trade_account_whitelist = OrderBookDeploy::deploy_order_book_whitelist(
                &deployer_wallet,
                &Identity::Address(ViewOnlyAccount::address(&deployer_wallet)),
                &OrderBookDeployConfig {
                    salt,
                    ..Default::default()
                },
            )
            .await?;
            tracing::info!(
                "OrderBookWhitelist: {}",
                trade_account_whitelist.contract_id()
            );
            Ok(Some(trade_account_whitelist.contract_id()))
        }
    }
}

/// Load an existing oracle and recover from partial deployment if needed.
/// Unlike `TradeAccountDeploy::from_oracle_id`, this does not error when
/// the trade account implementation is missing — it deploys and sets it.
async fn load_or_recover_trade_account_oracle<W>(
    deployer_wallet: &W,
    oracle_id: ContractId,
) -> anyhow::Result<(TradeAccountDeploy<W>, ContractId)>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let oracle = TradingAccountOracle::new(oracle_id, deployer_wallet.clone());
    let impl_id = oracle
        .methods()
        .get_trade_account_impl()
        .simulate(Execution::state_read_only())
        .await?
        .value;

    let blob_id = match impl_id {
        Some(id) => id,
        None => {
            tracing::info!(
                "Trade account implementation not set on oracle {}, deploying...",
                oracle_id
            );
            let blob = TradeAccountDeploy::trade_account_blob(
                deployer_wallet,
                &Default::default(),
            )
            .await?;
            TradeAccountDeploy::deploy_trade_account_blob(
                deployer_wallet,
                &DeployConfig::Latest(Default::default()),
            )
            .await?;
            oracle
                .methods()
                .set_trade_account_impl(ContractId::from(blob.id))
                .call()
                .await?;
            ContractId::from(blob.id)
        }
    };

    let deploy = TradeAccountDeploy {
        oracle,
        oracle_id,
        trade_account_blob_id: blob_id.into(),
        deployer_wallet: deployer_wallet.clone(),
        proxy: None,
        proxy_id: None,
    };
    Ok((deploy, blob_id))
}

async fn deploy_trade_account_oracle<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    trade_account_oracle_id: Option<ContractId>,
    salt: Salt,
) -> anyhow::Result<(TradeAccountDeploy<W>, ContractId)>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let (trade_account_oracle_deploy, mut trade_account_blob_id) =
        match trade_account_oracle_id {
            Some(oracle_id) => {
                load_or_recover_trade_account_oracle(&deployer_wallet, oracle_id).await?
            }
            None => {
                let deploy = TradeAccountDeploy::deploy(
                    &deployer_wallet,
                    &DeployConfig::Latest(TradeAccountDeployConfig {
                        salt,
                        ..Default::default()
                    }),
                )
                .await?;
                let blob_id = deploy
                    .oracle
                    .methods()
                    .get_trade_account_impl()
                    .simulate(Execution::state_read_only())
                    .await?
                    .value
                    .context("Trade account impl should exist after fresh deploy")?;
                (deploy, blob_id)
            }
        };
    tracing::info!(
        "TradeAccountOracle: {}",
        trade_account_oracle_deploy.oracle_id
    );

    if should_upgrade_bytecode {
        let trade_account_blob =
            TradeAccountDeploy::trade_account_blob(&deployer_wallet, &Default::default())
                .await?;
        if ContractId::from(trade_account_blob.id) != trade_account_blob_id {
            tracing::info!(
                "Update TradeAccountImpl on Oracle from {:?} to new blob {:?}",
                trade_account_blob_id,
                ContractId::from(trade_account_blob.id)
            );
            TradeAccountDeploy::deploy_trade_account_blob(
                &deployer_wallet,
                &DeployConfig::Latest(Default::default()),
            )
            .await?;
            trade_account_oracle_deploy
                .oracle
                .methods()
                .set_trade_account_impl(ContractId::from(trade_account_blob.id))
                .call()
                .await?;
            trade_account_blob_id = ContractId::from(trade_account_blob.id);
        }
    }

    Ok((trade_account_oracle_deploy, trade_account_blob_id))
}

async fn deploy_trade_account_registry<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    trade_account_deploy: TradeAccountDeploy<W>,
    trade_account_registry_id: Option<ContractId>,
    salt: Salt,
) -> anyhow::Result<(TradeAccountRegistryManager<W>, ContractId)>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let trade_account_oracle_id = trade_account_deploy.oracle_id;
    let trade_account_registry = match trade_account_registry_id {
        Some(trade_account_registry_contract_id) => TradeAccountRegistryManager::new(
            deployer_wallet.clone(),
            trade_account_registry_contract_id,
        ),
        None => {
            let trade_account_registry_deploy_config = TradeAccountRegistryDeployConfig {
                salt,
                ..Default::default()
            };
            TradeAccountRegistryManager::deploy(
                &deployer_wallet,
                trade_account_oracle_id,
                &trade_account_registry_deploy_config,
            )
            .await?
        }
    };
    tracing::info!(
        "TradeAccountRegistry: {}",
        trade_account_registry.contract_id
    );
    let mut trade_account_registry_blob_id = match trade_account_registry
        .registry_proxy
        .methods()
        .proxy_target()
        .simulate(Execution::state_read_only())
        .await?
        .value
    {
        Some(blob_id) => blob_id,
        None => {
            tracing::info!("TradeAccountRegistry proxy target not set, initializing...");
            // Call initialize_proxy() to write INITIAL_OWNER and INITIAL_TARGET
            // from configurables to storage (upgrade/set_proxy_target would fail
            // because the owner is not yet in storage)
            trade_account_registry
                .registry_proxy
                .methods()
                .initialize_proxy()
                .call()
                .await?;
            trade_account_registry
                .registry
                .methods()
                .initialize()
                .call()
                .await?;
            trade_account_registry
                .registry_proxy
                .methods()
                .proxy_target()
                .simulate(Execution::state_read_only())
                .await?
                .value
                .context("TradeAccountRegistry proxy target should be set after initialization")?
        }
    };

    if should_upgrade_bytecode {
        let trade_account_registry_deploy_config =
            TradeAccountRegistryDeployConfig::default();
        let trade_account_proxy_blob = TradeAccountRegistryManager::register_proxy_blob(
            &deployer_wallet,
            &trade_account_registry_deploy_config,
        )
        .await?;

        let trade_account_register_blob = TradeAccountRegistryManager::register_blob(
            &deployer_wallet,
            trade_account_oracle_id,
            trade_account_proxy_blob.id,
            &trade_account_registry_deploy_config,
        )
        .await?;

        if trade_account_registry_blob_id
            != ContractId::from(trade_account_register_blob.id)
        {
            tracing::info!(
                "Upgrade TradeAccountRegistry blob from {:?} to {:?}",
                trade_account_registry.contract_id,
                ContractId::from(trade_account_register_blob.id)
            );
            trade_account_registry
                .upgrade(
                    trade_account_oracle_id,
                    &TradeAccountRegistryDeployConfig::default(),
                )
                .await?;
            trade_account_registry_blob_id = trade_account_register_blob.id.into();
        }
    }
    Ok((trade_account_registry, trade_account_registry_blob_id))
}

async fn deploy_order_book_registry<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    order_book_registry_id: Option<ContractId>,
    salt: Salt,
) -> anyhow::Result<(OrderBookRegistryManager<W>, ContractId)>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let order_book_registry = match order_book_registry_id {
        Some(registry_contract_id) => {
            OrderBookRegistryManager::new(deployer_wallet.clone(), registry_contract_id)
        }
        None => {
            OrderBookRegistryManager::deploy(
                &deployer_wallet,
                &OrderBookRegistryDeployConfig {
                    salt,
                    ..Default::default()
                },
            )
            .await?
        }
    };
    tracing::info!("OrderBookRegistry: {}", order_book_registry.contract_id);
    let mut order_book_registry_blob_id = match order_book_registry
        .registry_proxy
        .methods()
        .proxy_target()
        .simulate(Execution::state_read_only())
        .await?
        .value
    {
        Some(blob_id) => blob_id,
        None => {
            tracing::info!("OrderBookRegistry proxy target not set, initializing...");
            // Call initialize_proxy() to write INITIAL_OWNER and INITIAL_TARGET
            // from configurables to storage (upgrade/set_proxy_target would fail
            // because the owner is not yet in storage)
            order_book_registry
                .registry_proxy
                .methods()
                .initialize_proxy()
                .call()
                .await?;
            order_book_registry
                .registry
                .methods()
                .initialize()
                .call()
                .await?;
            order_book_registry
                .registry_proxy
                .methods()
                .proxy_target()
                .simulate(Execution::state_read_only())
                .await?
                .value
                .context(
                    "OrderBookRegistry proxy target should be set after initialization",
                )?
        }
    };

    if should_upgrade_bytecode {
        let order_book_register_deploy_config = OrderBookRegistryDeployConfig::default();
        let order_book_register_blob = OrderBookRegistryManager::register_blob(
            &deployer_wallet,
            &order_book_register_deploy_config,
        )
        .await?;
        if order_book_registry_blob_id != order_book_register_blob.id.into() {
            tracing::info!(
                "Upgrade OrderBookRegistry blob from {:?} to {:?}",
                order_book_registry.contract_id,
                ContractId::from(order_book_register_blob.id)
            );
            order_book_registry
                .upgrade(&order_book_register_deploy_config)
                .await?;
            order_book_registry_blob_id = order_book_register_blob.id.into();
        }
    }

    Ok((order_book_registry, order_book_registry_blob_id))
}

async fn deploy_order_books<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    order_book_blacklist_id: Option<ContractId>,
    order_book_whitelist_id: Option<ContractId>,
    order_book_registry: OrderBookRegistryManager<W>,
    order_book_configs: &mut [OrderBookConfig],
    ownership_options: OwnershipTransferOptions,
) -> anyhow::Result<Vec<OrderBookConfig>>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let mut pairs: Vec<OrderBookConfig> = Vec::with_capacity(order_book_configs.len());

    for order_book_config in order_book_configs.iter_mut() {
        let pair = deploy_single_order_book(
            &deployer_wallet,
            should_upgrade_bytecode,
            order_book_blacklist_id,
            order_book_whitelist_id,
            &order_book_registry,
            order_book_config,
            &ownership_options,
        )
        .await?;
        pairs.push(pair);
    }

    Ok(pairs)
}

async fn deploy_single_order_book<W>(
    deployer_wallet: &W,
    should_upgrade_bytecode: bool,
    order_book_blacklist_id: Option<ContractId>,
    order_book_whitelist_id: Option<ContractId>,
    order_book_registry: &OrderBookRegistryManager<W>,
    order_book_config: &mut OrderBookConfig,
    ownership_options: &OwnershipTransferOptions,
) -> anyhow::Result<OrderBookConfig>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let market_symbol = format!(
        "{}/{}",
        order_book_config.base.symbol, order_book_config.quote.symbol
    );
    let market_id = MarketIdAssets {
        base_asset: order_book_config.base.asset,
        quote_asset: order_book_config.quote.asset,
    };
    let order_book_configurables = build_order_book_configurables(
        order_book_config,
        order_book_blacklist_id,
        order_book_whitelist_id,
        deployer_wallet,
    )?;

    let order_book = load_or_deploy_order_book(
        deployer_wallet,
        order_book_registry,
        &market_id,
        &market_symbol,
        &order_book_configurables,
        order_book_config,
    )
    .await?;

    tracing::info!(
        "[{}] OrderBook: {}",
        market_symbol,
        order_book.contract.contract_id()
    );

    let order_book_blob_id = maybe_upgrade_order_book(
        deployer_wallet,
        should_upgrade_bytecode,
        &order_book,
        order_book_config,
        order_book_configurables,
        &market_symbol,
    )
    .await?;

    transfer_order_book_ownership(&order_book, ownership_options, &market_symbol).await?;

    order_book_config.contract_id = Some(order_book.contract.contract_id());
    order_book_config.blob_id = order_book_blob_id.into();

    Ok(order_book_config.clone())
}

fn build_order_book_configurables<W: ViewOnlyAccount>(
    config: &OrderBookConfig,
    order_book_blacklist_id: Option<ContractId>,
    order_book_whitelist_id: Option<ContractId>,
    deployer_wallet: &W,
) -> anyhow::Result<OrderBookConfigurables> {
    let price_precision = config
        .quote
        .decimals
        .checked_sub(config.quote.max_precision)
        .ok_or_else(|| {
            anyhow::anyhow!(
                "quote max_precision ({}) exceeds decimals ({})",
                config.quote.max_precision,
                config.quote.decimals
            )
        })?;
    let quantity_precision = config
        .base
        .decimals
        .checked_sub(config.base.max_precision)
        .ok_or_else(|| {
            anyhow::anyhow!(
                "base max_precision ({}) exceeds decimals ({})",
                config.base.max_precision,
                config.base.decimals
            )
        })?;

    Ok(OrderBookConfigurables::default()
        .with_MIN_ORDER(config.min_order)?
        .with_ALLOW_FRACTIONAL_PRICE(config.allow_fractional_price)?
        .with_TAKER_FEE(config.taker_fee.into())?
        .with_MAKER_FEE(config.maker_fee.into())?
        .with_DUST(config.dust)?
        .with_PRICE_WINDOW(config.price_window as u64)?
        .with_BASE_DECIMALS(10u64.pow(config.base.decimals as u32))?
        .with_QUOTE_DECIMALS(10u64.pow(config.quote.decimals as u32))?
        .with_BASE_SYMBOL(SizedAsciiString::new_with_right_whitespace_padding(
            config.base.symbol.clone(),
        )?)?
        .with_QUOTE_SYMBOL(SizedAsciiString::new_with_right_whitespace_padding(
            config.quote.symbol.clone(),
        )?)?
        .with_PRICE_PRECISION(10u64.pow(price_precision as u32))?
        .with_QUANTITY_PRECISION(10u64.pow(quantity_precision as u32))?
        .with_INITIAL_OWNER(o2_tools::order_book_deploy::State::Initialized(
            Identity::Address(ViewOnlyAccount::address(deployer_wallet)),
        ))?
        .with_WHITE_LIST_CONTRACT(order_book_whitelist_id)?
        .with_BLACK_LIST_CONTRACT(order_book_blacklist_id)?)
}

async fn load_or_deploy_order_book<W>(
    deployer_wallet: &W,
    order_book_registry: &OrderBookRegistryManager<W>,
    market_id: &MarketIdAssets,
    market_symbol: &str,
    order_book_configurables: &OrderBookConfigurables,
    order_book_config: &OrderBookConfig,
) -> anyhow::Result<OrderBookManager<W>>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let register_contract_id = order_book_registry
        .registry
        .methods()
        .get_order_book(to_registry_market_id(market_id))
        .simulate(Execution::state_read_only())
        .await?
        .value;

    match register_contract_id {
        Some(contract_id) => {
            let order_book_deploy = OrderBookDeploy::new(
                deployer_wallet.clone(),
                contract_id,
                market_id.base_asset,
                market_id.quote_asset,
            );
            // Handle partially deployed contracts (e.g. previous deploy failed
            // after registering but before initializing the proxy)
            let proxy_target = order_book_deploy
                .order_book_proxy
                .methods()
                .proxy_target()
                .simulate(Execution::state_read_only())
                .await?
                .value;
            if proxy_target.is_none() {
                tracing::info!(
                    "[{}] Proxy target not set, initializing...",
                    market_symbol
                );
                order_book_deploy.initialize().await?;
            }
            Ok(OrderBookManager::new(
                deployer_wallet,
                10u64.pow(order_book_config.base.decimals as u32),
                10u64.pow(order_book_config.quote.decimals as u32),
                &order_book_deploy,
            ))
        }
        None => {
            let (order_book_deployment, initialization_required) =
                OrderBookDeploy::deploy_without_initialization(
                    deployer_wallet,
                    market_id.base_asset,
                    market_id.quote_asset,
                    &OrderBookDeployConfig {
                        order_book_configurables: order_book_configurables.clone(),
                        salt: Salt::from(*order_book_registry.contract_id),
                        ..Default::default()
                    },
                )
                .await?;

            order_book_registry
                .register_order_book(
                    to_registry_market_id(market_id),
                    order_book_deployment.contract_id,
                )
                .await?;

            if initialization_required {
                order_book_deployment.initialize().await?;
            }
            Ok(OrderBookManager::new(
                deployer_wallet,
                10u64.pow(order_book_config.base.decimals as u32),
                10u64.pow(order_book_config.quote.decimals as u32),
                &order_book_deployment,
            ))
        }
    }
}

async fn maybe_upgrade_order_book<W>(
    deployer_wallet: &W,
    should_upgrade_bytecode: bool,
    order_book: &OrderBookManager<W>,
    order_book_config: &OrderBookConfig,
    order_book_configurables: OrderBookConfigurables,
    market_symbol: &str,
) -> anyhow::Result<ContractId>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let mut order_book_blob_id = order_book
        .proxy
        .methods()
        .proxy_target()
        .simulate(Execution::state_read_only())
        .await?
        .value
        .context("Order book proxy target should be set after initialization")?;

    if should_upgrade_bytecode {
        let order_book_deploy_config = OrderBookDeployConfig {
            order_book_configurables,
            ..Default::default()
        };
        let order_book_deploy = OrderBookDeploy::new(
            deployer_wallet.clone(),
            order_book.contract.contract_id(),
            order_book_config.base.asset,
            order_book_config.quote.asset,
        );
        let order_book_manager = OrderBookManager::new(
            deployer_wallet,
            10u64.pow(order_book_config.base.decimals as u32),
            10u64.pow(order_book_config.quote.decimals as u32),
            &order_book_deploy,
        );
        let order_book_blob = OrderBookDeploy::order_book_blob(
            deployer_wallet,
            order_book_config.base.asset,
            order_book_config.quote.asset,
            &order_book_deploy_config,
        )
        .await?;

        if order_book_blob_id != order_book_blob.id.into() {
            tracing::info!(
                "[{}] Upgrade OrderBook blob from {:?} to {:?}",
                market_symbol,
                order_book_blob_id,
                ContractId::from(order_book_blob.id)
            );
            order_book_manager
                .upgrade(&order_book_deploy_config)
                .await?;
            tracing::info!(
                "[{}] Emit new configuration event for {}",
                market_symbol,
                order_book.contract.contract_id()
            );
            order_book_manager.emit_config().await?;
            order_book_blob_id = order_book_blob.id.into();
        }
    }

    Ok(order_book_blob_id)
}

async fn transfer_order_book_ownership<W>(
    order_book: &OrderBookManager<W>,
    ownership_options: &OwnershipTransferOptions,
    market_symbol: &str,
) -> anyhow::Result<()>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    if let Some(new_owner) = ownership_options.new_proxy_owner {
        let new_identity = Identity::Address(new_owner);
        tracing::info!(
            "[{}] Transferring OrderBook proxy ownership to {}",
            market_symbol,
            new_owner
        );
        order_book
            .proxy
            .methods()
            .set_owner(new_identity)
            .call()
            .await?;
    }

    if let Some(new_owner) = ownership_options.new_contract_owner {
        let new_identity = Identity::Address(new_owner);
        tracing::info!(
            "[{}] Transferring OrderBook contract ownership to {}",
            market_symbol,
            new_owner
        );
        order_book
            .contract
            .methods()
            .transfer_ownership(new_identity)
            .call()
            .await?;
    }

    Ok(())
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn load_config_empty_path_returns_default() {
        let result: MarketsConfigPartial = load_config_from_file("").unwrap();
        assert!(result.pairs.is_empty());
    }

    #[test]
    fn load_config_missing_file_errors() {
        let result: Result<MarketsConfigPartial, _> =
            load_config_from_file("nonexistent_file_12345.json");
        assert!(result.is_err());
    }

    #[test]
    fn checked_sub_catches_overflow() {
        // Validates that our checked_sub pattern works correctly
        let decimals: u32 = 6;
        let max_precision: u32 = 8; // greater than decimals

        let result = decimals.checked_sub(max_precision);
        assert!(
            result.is_none(),
            "should return None when max_precision > decimals"
        );

        // Normal case
        let result = 9u32.checked_sub(6);
        assert_eq!(result, Some(3));
    }

    #[test]
    fn markets_config_partial_default_has_empty_pairs() {
        let config = MarketsConfigPartial::default();
        assert!(config.pairs.is_empty());
    }
}