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,
    },
    trial_trade_account_deploy::{
        DeployConfig as TrialDeployConfig,
        TrialTradeAccountDeploy,
        TrialTradeAccountDeployConfig,
        TrialTradingAccountOracle,
    },
};
use serde_with::serde_as;
use std::ops::{
    Deref,
    DerefMut,
};

pub use o2_tools::prop_deploy::{
    ExistingRegistry,
    PropDeployConfig,
    PropDeployment,
};

/// Access-control role that authorizes order-book maintenance actions
/// (`force_cancel_orders`, `cancel_blacklist_orders`, `eject_trigger_order`).
///
/// Must match `ORDERBOOK_MAINTAINER_ROLE` in `contracts/order-book/src/main.sw`.
const ORDERBOOK_MAINTAINER_ROLE: u64 = 1;

/// Deploy the independent prop-account system.
///
/// This is additive to the existing exchange deployment: callers can choose
/// when to deploy the direct account oracle, mock price feed, proxied registry,
/// and proxied margin pool.
pub async fn deploy_prop_system<W>(
    wallet: &W,
    config: &PropDeployConfig,
) -> anyhow::Result<PropDeployment<W>>
where
    W: Account + Clone,
{
    PropDeployment::deploy(wallet, config).await
}

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 trial_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>,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub price_feed_id: Option<ContractId>,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub margin_pool_id: Option<ContractId>,
    #[serde_as(as = "Option<HexDisplayFromStr>")]
    pub margin_oracle_id: Option<ContractId>,
    /// The `margin` section, echoed back with the ids this run resolved
    /// folded in. CI writes the output OVER the deploy config, so anything
    /// the output drops is destroyed: without this the first margin deploy
    /// would erase the tier catalogue, the pool config, the publishers and
    /// the initial prices, and every later run would silently do no margin
    /// work at all.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub margin: Option<MarginConfig>,
    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 trial_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>,
    /// Optional `margin` section: the prop-account margin stack (price
    /// feed, pool, account oracle, in-place registry upgrade) plus the
    /// tier catalogue, deployed/upgraded idempotently after the books.
    pub margin: Option<MarginConfig>,
}

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>,
            trial_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>,
            #[serde(default)]
            margin: Option<MarginConfig>,
        }
        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,
            trial_trade_account_oracle_id: h.trial_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(),
            margin: h.margin,
        })
    }
}

/// One tier of the margin catalogue. Mirrors the on-chain `TierParams`
/// plus the tier id and the markets (order books) it covers. `line`
/// follows the config convention of u64 amounts as strings.
#[serde_as]
#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
pub struct MarginTierConfig {
    pub tier_id: u64,
    /// Credit line in collateral-asset base units, as a decimal string.
    #[serde_as(as = "serde_with::DisplayFromStr")]
    pub line: u64,
    pub leverage: u64,
    pub duration: u64,
    pub maintenance_bps: u64,
    pub open_buffer_bps: u64,
    pub liq_price_factor: u64,
    pub prolong_fee_bps: [u64; 4],
    pub max_credit_line_bps: u64,
    pub max_price_age: u64,
    pub open_fee_bps: u64,
    pub profit_share_bps: u64,
    pub price_band_bps: u64,
    /// Markets in this tier, referencing already-configured pairs by
    /// "BASE/QUOTE" symbol or by hex market id.
    pub markets: Vec<String>,
}

/// One initial price to publish on the feed before tiers are published
/// (`publish_tier_version` prices every non-collateral tier asset).
/// `bid`/`ask` are u128 decimal strings scaled 1e18 per whole unit.
#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
pub struct MarginInitialPrice {
    pub asset: fuels::types::AssetId,
    pub bid: String,
    pub ask: String,
    pub asset_decimals: u8,
}

/// Optional `margin` section of the deploy config: the prop margin pool,
/// the prop account oracle, the price feed and the tier catalogue.
#[derive(Debug, Clone, Default, serde::Serialize, serde::Deserialize)]
pub struct MarginConfig {
    /// DRY-RUN: report what exists on the live chain versus what a real
    /// run would deploy/upgrade — per contract and per tier — and send NO
    /// transaction.
    #[serde(default)]
    pub dry_run: bool,
    /// Reuse an existing price feed instead of deploying the mock feed
    /// (production passes its proxied feed; the mock fits test/dev only).
    pub price_feed_id: Option<ContractId>,
    /// TIER-ONLY mode: run no system deploy, only reconcile the tier
    /// catalogue (and prices/publishers when configured) against this
    /// already-deployed pool.
    pub margin_pool_id: Option<ContractId>,
    /// Identity receiving the platform profit share, prefixed with its
    /// kind (`address:0x..` / `contract:0x..`). Defaults to the deployer.
    pub platform_payout: Option<String>,
    /// Price feed publishers to add (`address:0x..` — the feed grants the
    /// submitter role to addresses). When empty, nothing is granted; the
    /// deployer must already be a publisher for `initial_prices` to land.
    #[serde(default)]
    pub publishers: Vec<String>,
    /// Collateral asset of the pool. Defaults to the quote asset of the
    /// first configured pair.
    pub collateral_asset: Option<fuels::types::AssetId>,
    /// Collateral asset decimals. REQUIRED: a wrong figure misprices every
    /// valuation the pool makes, so there is no default to fall back to.
    pub collateral_decimals: Option<u8>,
    /// Maximum order books one tier version may hold. Defaults to 80.
    pub max_tier_books: Option<u64>,
    /// Fee charged by `repay_base_from_collateral`, in PARTS PER MILLION of the
    /// quote value of the debt closed - the order book's `TAKER_FEE` scale, so
    /// `100` is one basis point. Defaults to 100.
    ///
    /// It is a pool CONFIGURABLE, so changing it here only takes effect on a
    /// deploy or an implementation upgrade (`--upgrade-bytecode`), never on a
    /// tier-only reconcile against an already-deployed pool.
    pub base_repay_fee_ppm: Option<u64>,
    /// Prices published (by the deployer) before tiers, so tier assets
    /// are priced on the feed. Already-priced assets are skipped.
    #[serde(default)]
    pub initial_prices: Vec<MarginInitialPrice>,
    /// The desired tier catalogue; reconciled idempotently (§ tier engine):
    /// unchanged tiers are untouched, grown book lists use `add_books`,
    /// any param change publishes a NEW version.
    #[serde(default)]
    pub tiers: Vec<MarginTierConfig>,
}

#[derive(Debug, Clone, Default)]
pub struct OwnershipTransferOptions {
    pub new_proxy_owner: Option<fuels::types::Address>,
    pub new_contract_owner: Option<fuels::types::Address>,
    /// Accounts to revoke `ORDERBOOK_MAINTAINER_ROLE` from on each order book
    /// (via `owner_revoke_role`) before granting the new maintainers, so the role
    /// is rotated rather than accumulating holders across upgrades.
    pub revoke_orderbook_maintainers: Vec<fuels::types::Address>,
    /// Accounts to grant `ORDERBOOK_MAINTAINER_ROLE` to on each order book (via
    /// `owner_grant_role`) before ownership is transferred away.
    pub new_orderbook_maintainers: Vec<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>,
    /// Cosigner address for trial trade accounts. When set, the trial trade
    /// account implementation is (re)deployed on the trial oracle and this
    /// cosigner is configured on it; when absent, the configured cosigner is
    /// left untouched (the implementation still follows the regular
    /// seed/upgrade lifecycle).
    pub trial_cosigner: Option<fuels::types::Address>,
    /// Identity allowed to register (activate) trial trade accounts on the
    /// registry. When set, it is written via
    /// `set_trial_trade_account_creator` if it differs from the current one
    /// — registries upgraded in place start with the creator unset, which
    /// denies all trial registrations. When absent, the creator is left
    /// untouched.
    pub trial_creator: Option<Identity>,
    /// Cosigner address for prop/margin accounts. When set, it is written to
    /// the prop account oracle if it differs from the live one; when absent,
    /// the configured cosigner is left untouched. Deliberately NOT sourced
    /// from the deploy config and NOT defaulted to the deployer: a cosigner
    /// the backend does not hold the key for makes margin silently inert.
    pub margin_cosigner: Option<fuels::types::Address>,
    /// Recipient of the residue from forced margin exits (liquidation and
    /// expiry). Same opt-in rule as `margin_cosigner`: set it and it is
    /// reconciled, omit it and the live value stands. Never defaulted to the
    /// deployer - the deploy key must not silently become the payee.
    pub margin_liquidator: Option<Identity>,
    pub revoke_orderbook_maintainers: Vec<fuels::types::Address>,
    pub new_orderbook_maintainers: Vec<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 trial_trade_account_oracle_id =
        markets_config_partial.trial_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?;
    // The trial oracle is a dedicated contract (already-deployed trade
    // account oracles are immutable and cannot gain the trial functions), so
    // it deploys separately and the registry references both oracle ids.
    let trial_trade_account_oracle_id = deploy_trial_trade_account_oracle(
        wallet.clone(),
        params.upgrade_bytecode,
        trial_trade_account_oracle_id,
        params.trial_cosigner,
        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(),
            trial_trade_account_oracle_id,
            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,
            revoke_orderbook_maintainers: params.revoke_orderbook_maintainers.clone(),
            new_orderbook_maintainers: params.new_orderbook_maintainers.clone(),
        },
    )
    .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")?;

    // The margin phase runs BEFORE ownership transfer: the in-place
    // registry upgrade and the pool/tier governance calls need the deployer
    // to still hold the proxies and the pool admin role.
    let margin_ids = match &markets_config_partial.margin {
        Some(margin) => Some(
            deploy_margin(
                &wallet,
                margin,
                salt,
                trade_account_registry_id,
                trade_account_oracle_id,
                trial_trade_account_oracle_id,
                &pairs,
                params.margin_cosigner,
                params.margin_liquidator,
            )
            .await?,
        ),
        None => None,
    };

    // Registries upgraded in place start with the trial creator unset (the
    // configurable seed only applies on the first initialize), so the deploy
    // writes it explicitly when provided. Must run before ownership transfer.
    if let Some(trial_creator) = params.trial_creator {
        let current_creator = trade_account_registry
            .get_trial_trade_account_creator()
            .await?;
        if current_creator != trial_creator {
            tracing::info!("Setting trial trade account creator to {trial_creator:?}");
            trade_account_registry
                .set_trial_trade_account_creator(trial_creator)
                .await?;
        }
    }

    transfer_ownership(
        &wallet,
        &params,
        &order_book_registry,
        &trade_account_registry,
        &trade_account_oracle_deploy,
        trial_trade_account_oracle_id,
        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,
        trial_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,
        price_feed_id: margin_ids.map(|ids| ids.price_feed_id),
        margin_pool_id: margin_ids.map(|ids| ids.margin_pool_id),
        margin_oracle_id: margin_ids.and_then(|ids| ids.margin_oracle_id),
        // Carry the section through, with the resolved ids written back so a
        // re-run reads them and drops into tier-only mode against the pool it
        // already deployed. A DRY RUN must not: its ids are predictions for
        // contracts that were never created, and writing them would send the
        // next real run into tier-only mode against a pool that does not
        // exist, skipping the system deploy entirely.
        margin: markets_config_partial.margin.clone().map(|mut margin| {
            if let (Some(ids), false) = (margin_ids, margin.dry_run) {
                margin.price_feed_id = Some(ids.price_feed_id);
                margin.margin_pool_id = Some(ids.margin_pool_id);
            }
            margin
        }),
    };

    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)
}

// ---------------------------------------------------------------------------
// Margin (prop) deployment
// ---------------------------------------------------------------------------

/// The margin stack's resolved ids, echoed on the deploy output.
#[derive(Debug, Clone, Copy)]
pub struct MarginIds {
    pub price_feed_id: ContractId,
    pub margin_pool_id: ContractId,
    pub margin_oracle_id: Option<ContractId>,
}

/// The margin phase of [`deploy`]: the prop system deployed/resumed
/// deterministically (salted ids, exists-checked steps), the SHARED
/// trade-account registry upgraded IN PLACE to carry the prop
/// configurables, and the tier catalogue reconciled. With
/// `margin.dry_run` everything is reported and nothing is sent; with
/// `margin.margin_pool_id` the system deploy is skipped and only the
/// feed/price/tier reconciliation runs against the given pool.
#[allow(clippy::too_many_arguments)]
async fn deploy_margin<W>(
    wallet: &W,
    margin: &MarginConfig,
    salt: fuels::types::Salt,
    trade_account_registry_id: ContractId,
    trade_account_oracle_id: ContractId,
    trial_trade_account_oracle_id: ContractId,
    pairs: &[OrderBookConfig],
    margin_cosigner: Option<fuels::types::Address>,
    margin_liquidator: Option<Identity>,
) -> anyhow::Result<MarginIds>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    use o2_tools::prop::{
        PropAccountOracleContract,
        PropMarginPoolContract,
        PropPriceFeedMockContract,
    };

    let collateral_asset = match margin.collateral_asset {
        Some(collateral_asset) => collateral_asset,
        None => {
            pairs
                .first()
                .context(
                    "margin.collateral_asset is not set and there are no pairs to \
                     default it from",
                )?
                .quote
                .asset
        }
    };
    // The cosigner and the liquidator arrive as DEPLOY PARAMETERS, not from
    // the config file: both name a key or a payee that belongs to the
    // operator running the deploy, and both are opt-in - provide one and it
    // is reconciled, omit it and whatever is live stands.
    let cosigner = margin_cosigner;
    let platform_payout = margin
        .platform_payout
        .as_deref()
        .map(parse_margin_identity)
        .transpose()?;
    let liquidator = margin_liquidator;

    let mut prop_config = PropDeployConfig::new(collateral_asset);
    // No default: a wrong decimals figure misprices every valuation the pool
    // makes, and it is invisible until money moves.
    prop_config.collateral_decimals = margin.collateral_decimals.context(
        "margin.collateral_decimals is required - set it to the collateral \
         asset's decimals in the deploy config",
    )?;
    prop_config.max_tier_books = margin.max_tier_books.unwrap_or(80);
    prop_config.base_repay_fee_ppm = margin.base_repay_fee_ppm.unwrap_or(100);
    prop_config.cosigner = cosigner;
    prop_config.platform_payout = platform_payout;
    prop_config.liquidator = liquidator;
    prop_config.salt = salt;
    prop_config.existing_price_feed = margin.price_feed_id;
    prop_config.existing_registry = Some(ExistingRegistry {
        registry_id: trade_account_registry_id,
        trade_account_oracle_id,
        trial_trade_account_oracle_id,
    });

    // Resolve the system: tier-only mode / dry run / real deploy-or-resume.
    let (price_feed_id, margin_pool_id, margin_oracle_id, mutate) = if let Some(
        margin_pool_id,
    ) =
        margin.margin_pool_id
    {
        tracing::info!("Margin: tier-only mode against pool {margin_pool_id}");
        let price_feed_id = match margin.price_feed_id {
            Some(price_feed_id) => price_feed_id,
            None => {
                PropMarginPoolContract::new(margin_pool_id, wallet.clone())
                    .methods()
                    .price_feed()
                    .simulate(Execution::state_read_only())
                    .await
                    .context("read the pool's price feed")?
                    .value
            }
        };
        (price_feed_id, margin_pool_id, None, !margin.dry_run)
    } else if margin.dry_run {
        let report = PropDeployment::verify(wallet, &prop_config).await?;
        tracing::info!(
            "Margin DRY-RUN: system {} (oracle {}, pool {}, feed {}, registry {})",
            if report.up_to_date {
                "up to date — a real run would send no system transaction"
            } else {
                "NOT up to date — see the [prop verify] lines above"
            },
            report.oracle_id,
            report.pool_id,
            report.price_feed_id,
            report.registry_id,
        );
        (
            report.price_feed_id,
            report.pool_id,
            Some(report.oracle_id),
            false,
        )
    } else {
        let deployment = deploy_prop_system(wallet, &prop_config).await?;
        tracing::info!(
            "Margin: oracle {}, pool {}, feed {} (shared registry {} upgraded in place)",
            deployment.oracle_id,
            deployment.pool_id,
            deployment.price_feed_id,
            deployment.registry_id,
        );
        (
            deployment.price_feed_id,
            deployment.pool_id,
            Some(deployment.oracle_id),
            true,
        )
    };

    // -- the payout parties ----------------------------------------------
    // Reconciled compare-first against the LIVE pool, so a re-run is a
    // no-op and an absent config key never overwrites what the pool has.
    // A pool not deployed yet gets both values through its INITIAL_*
    // configurables on the real run.
    let pool_deployed = wallet
        .try_provider()?
        .contract_exists(&margin_pool_id)
        .await?;
    if pool_deployed {
        let pool = PropMarginPoolContract::new(margin_pool_id, wallet.clone());
        if let Some(platform_payout) = platform_payout {
            let current = pool
                .methods()
                .platform_payout()
                .simulate(Execution::state_read_only())
                .await
                .context("read the pool's platform payout")?
                .value;
            if current != platform_payout {
                if mutate {
                    tracing::info!(
                        "Margin: platform payout {current:?} -> {platform_payout:?}"
                    );
                    pool.methods()
                        .set_platform_payout(platform_payout)
                        .call()
                        .await?;
                } else {
                    tracing::info!(
                        "Margin DRY-RUN: would set platform payout \
                         {current:?} -> {platform_payout:?}"
                    );
                }
            }
        }
        if let Some(liquidator) = liquidator {
            let current = pool
                .methods()
                .liquidator()
                .simulate(Execution::state_read_only())
                .await
                .context("read the pool's liquidator")?
                .value;
            if current != liquidator {
                if mutate {
                    tracing::info!("Margin: liquidator {current:?} -> {liquidator:?}");
                    pool.methods().set_liquidator(liquidator).call().await?;
                } else {
                    tracing::info!(
                        "Margin DRY-RUN: would set liquidator \
                         {current:?} -> {liquidator:?}"
                    );
                }
            }
        }
    }

    // Tier-only mode resolves no oracle of its own - ask the live registry,
    // which is the same lookup the backend performs at boot.
    let margin_oracle_id = match margin_oracle_id {
        Some(oracle_id) => Some(oracle_id),
        None if cosigner.is_some() => {
            let registry = o2_tools::trade_account_registry::TradeAccountRegistry::new(
                trade_account_registry_id,
                wallet.clone(),
            );
            let oracle_id = registry
                .methods()
                .get_prop_oracle_id()
                .simulate(Execution::state_read_only())
                .await
                .context("read the registry's prop account oracle")?
                .value;
            (oracle_id != ContractId::zeroed()).then_some(oracle_id)
        }
        None => None,
    };

    // The cosigner lives on the ORACLE, not the pool, and only reaches
    // storage through INITIAL_COSIGNER on the very first initialize - so an
    // already-initialized oracle needs this explicit reconciliation, or
    // "set it if provided" would silently mean "only on a fresh deploy".
    if let (Some(cosigner), Some(oracle_id)) = (cosigner, margin_oracle_id)
        && wallet.try_provider()?.contract_exists(&oracle_id).await?
    {
        let oracle = PropAccountOracleContract::new(oracle_id, wallet.clone());
        let current = oracle
            .methods()
            .get_cosigner()
            .simulate(Execution::state_read_only())
            .await
            .context("read the prop account oracle's cosigner")?
            .value;
        if current != Some(cosigner) {
            if mutate {
                tracing::info!("Margin: cosigner {current:?} -> {cosigner:?}");
                oracle.methods().set_cosigner(cosigner).call().await?;
            } else {
                tracing::info!(
                    "Margin DRY-RUN: would set cosigner \
                     {current:?} -> {cosigner:?}"
                );
            }
        }
    }

    // -- publishers + initial prices ------------------------------------
    let price_feed = PropPriceFeedMockContract::new(price_feed_id, wallet.clone());
    if mutate {
        for publisher in &margin.publishers {
            let publisher = parse_margin_identity(publisher)?;
            tracing::info!("Margin: adding price feed publisher {publisher:?}");
            price_feed.methods().add_publisher(publisher).call().await?;
        }
    } else if !margin.publishers.is_empty() {
        tracing::info!(
            "Margin DRY-RUN: would add {} price feed publisher(s)",
            margin.publishers.len()
        );
    }
    // The feed checks publish timestamps against the block's own clock, so the
    // deploy host's clock cannot be used: one running ahead of the chain is
    // rejected as TimestampInFuture, one running behind as TimestampTooOld.
    let chain_now = wallet
        .try_provider()?
        .latest_block_time()
        .await?
        .context("the chain has no latest block time")?
        .timestamp() as u64;
    for initial_price in &margin.initial_prices {
        let has_price = price_feed
            .methods()
            .has_price(initial_price.asset)
            .simulate(Execution::state_read_only())
            .await?
            .value;
        if has_price {
            continue;
        }
        if !mutate {
            tracing::info!(
                "Margin DRY-RUN: would publish an initial price for {}",
                initial_price.asset
            );
            continue;
        }
        let decimals = price_feed
            .methods()
            .get_asset_decimals(initial_price.asset)
            .simulate(Execution::state_read_only())
            .await?
            .value;
        if decimals.is_none() {
            price_feed
                .methods()
                .set_asset_decimals(initial_price.asset, initial_price.asset_decimals)
                .call()
                .await?;
        }
        let bid: u128 = initial_price
            .bid
            .parse()
            .map_err(|e| anyhow::anyhow!("invalid initial price bid: {e}"))?;
        let ask: u128 = initial_price
            .ask
            .parse()
            .map_err(|e| anyhow::anyhow!("invalid initial price ask: {e}"))?;
        tracing::info!(
            "Margin: publishing initial price for {}",
            initial_price.asset
        );
        price_feed
            .methods()
            .publish_prices(vec![o2_tools::prop::PriceInput {
                asset: initial_price.asset,
                bid,
                ask,
                timestamp: chain_now,
            }])
            .call()
            .await?;
    }

    // -- the tier catalogue ---------------------------------------------
    let pool = PropMarginPoolContract::new(margin_pool_id, wallet.clone());
    let pool_reachable = wallet
        .try_provider()?
        .contract_exists(&margin_pool_id)
        .await?;
    if pool_reachable {
        reconcile_margin_tiers(&pool, price_feed_id, pairs, &margin.tiers, !mutate)
            .await?;
    } else if !margin.tiers.is_empty() {
        tracing::info!(
            "Margin DRY-RUN: pool not deployed yet — all {} tier(s) would publish \
             their first version",
            margin.tiers.len()
        );
    }

    Ok(MarginIds {
        price_feed_id,
        margin_pool_id,
        margin_oracle_id,
    })
}

/// The tier engine: reconcile the DECLARED catalogue against the LIVE
/// pool, idempotently.
///
/// - no live version              -> publish version 1;
/// - params differ from the live  -> publish a NEW version;
/// - params equal, books grew     -> `add_books` with the missing books;
/// - params equal, books covered  -> untouched (books are append-only:
///   a SHRUNK declared list cannot be enacted and is reported).
async fn reconcile_margin_tiers<W>(
    pool: &o2_tools::prop::PropMarginPoolContract<W>,
    price_feed_id: ContractId,
    pairs: &[OrderBookConfig],
    tiers: &[MarginTierConfig],
    dry_run: bool,
) -> anyhow::Result<()>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    for tier in tiers {
        let books = tier
            .markets
            .iter()
            .map(|market| resolve_tier_market(market, pairs))
            .collect::<anyhow::Result<Vec<_>>>()?;
        let params = tier_params(tier);
        let current_version = pool
            .methods()
            .current_tier_version(tier.tier_id)
            .simulate(Execution::state_read_only())
            .await?
            .value;

        let mut contract_ids = vec![price_feed_id];
        contract_ids.extend(books.iter().copied());

        let Some(version) = current_version else {
            if dry_run {
                tracing::info!(
                    "Margin DRY-RUN: tier {} — would publish its FIRST version \
                     ({} book(s))",
                    tier.tier_id,
                    books.len()
                );
                continue;
            }
            let version = pool
                .methods()
                .publish_tier_version(tier.tier_id, params, books)
                .with_contract_ids(&contract_ids)
                .call()
                .await?
                .value;
            tracing::info!("Margin: tier {} published version {version}", tier.tier_id);
            continue;
        };

        let live = pool
            .methods()
            .get_tier(tier.tier_id, version)
            .simulate(Execution::state_read_only())
            .await?
            .value
            .with_context(|| {
                format!("tier {} version {version} vanished mid-read", tier.tier_id)
            })?;
        if live != params {
            if dry_run {
                tracing::info!(
                    "Margin DRY-RUN: tier {} — params differ from live version \
                     {version}; would publish a NEW version",
                    tier.tier_id
                );
                continue;
            }
            let new_version = pool
                .methods()
                .publish_tier_version(tier.tier_id, params, books)
                .with_contract_ids(&contract_ids)
                .call()
                .await?
                .value;
            tracing::info!(
                "Margin: tier {} republished as version {new_version}",
                tier.tier_id
            );
            continue;
        }

        let live_books = pool
            .methods()
            .tier_books(tier.tier_id, version)
            .simulate(Execution::state_read_only())
            .await?
            .value;
        let missing: Vec<ContractId> = books
            .iter()
            .copied()
            .filter(|book| !live_books.contains(book))
            .collect();
        let shrunk = live_books
            .iter()
            .filter(|book| !books.contains(book))
            .count();
        if shrunk > 0 {
            tracing::warn!(
                "Margin: tier {} declares {shrunk} fewer book(s) than live version \
                 {version}; books are append-only — publish a new version to drop \
                 markets",
                tier.tier_id
            );
        }
        if missing.is_empty() {
            tracing::info!(
                "Margin: tier {} version {version} matches the declared catalogue — \
                 unchanged",
                tier.tier_id
            );
            continue;
        }
        if dry_run {
            tracing::info!(
                "Margin DRY-RUN: tier {} — would add {} book(s) to version {version}",
                tier.tier_id,
                missing.len()
            );
            continue;
        }
        let mut add_contract_ids = vec![price_feed_id];
        add_contract_ids.extend(missing.iter().copied());
        pool.methods()
            .add_books(tier.tier_id, missing.clone())
            .with_contract_ids(&add_contract_ids)
            .call()
            .await?;
        tracing::info!(
            "Margin: tier {} version {version} gained {} book(s)",
            tier.tier_id,
            missing.len()
        );
    }
    Ok(())
}

fn tier_params(tier: &MarginTierConfig) -> o2_tools::prop::TierParams {
    o2_tools::prop::TierParams {
        line: tier.line,
        leverage: tier.leverage,
        duration: tier.duration,
        maintenance_bps: tier.maintenance_bps,
        open_buffer_bps: tier.open_buffer_bps,
        liq_price_factor: tier.liq_price_factor,
        prolong_fee_bps: tier.prolong_fee_bps,
        max_credit_line_bps: tier.max_credit_line_bps,
        max_price_age: tier.max_price_age,
        open_fee_bps: tier.open_fee_bps,
        profit_share_bps: tier.profit_share_bps,
        price_band_bps: tier.price_band_bps,
    }
}

/// Resolve a tier `markets` entry — a "BASE/QUOTE" symbol pair or a hex
/// market id — to the deployed order book's contract id.
fn resolve_tier_market(
    market: &str,
    pairs: &[OrderBookConfig],
) -> anyhow::Result<ContractId> {
    let wanted = market.trim();
    let wanted_id = wanted
        .strip_prefix("0x")
        .unwrap_or(wanted)
        .to_ascii_lowercase();
    let pair = pairs
        .iter()
        .find(|pair| {
            let symbol = format!("{}/{}", pair.base.symbol, pair.quote.symbol);
            symbol.eq_ignore_ascii_case(wanted)
                || hex::encode(*pair.market_id) == wanted_id
        })
        .with_context(|| format!("margin tier references unknown market `{market}`"))?;
    pair.contract_id.with_context(|| {
        format!("margin tier market `{market}` has no deployed order book")
    })
}

/// `address:0x..` or `contract:0x..` into an `Identity`.
fn parse_margin_identity(s: &str) -> anyhow::Result<Identity> {
    if let Some(hex_part) = s.strip_prefix("address:") {
        Ok(Identity::Address(fuels::types::Address::new(
            parse_margin_bytes32(hex_part)?,
        )))
    } else if let Some(hex_part) = s.strip_prefix("contract:") {
        Ok(Identity::ContractId(ContractId::new(parse_margin_bytes32(
            hex_part,
        )?)))
    } else {
        anyhow::bail!("expected `address:0x..` or `contract:0x..`, got `{s}`")
    }
}

fn parse_margin_bytes32(s: &str) -> anyhow::Result<[u8; 32]> {
    let raw = s.trim().strip_prefix("0x").unwrap_or(s.trim());
    let bytes = hex::decode(raw)
        .map_err(|e| anyhow::anyhow!("expected 32 hex bytes, got `{s}`: {e}"))?;
    bytes
        .try_into()
        .map_err(|_| anyhow::anyhow!("expected 32 hex bytes, got `{s}`"))
}

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

#[allow(clippy::too_many_arguments)]
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>,
    trial_trade_account_oracle_id: ContractId,
    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 TrialTradeAccountOracle ownership to {}",
            new_contract_owner
        );
        TrialTradingAccountOracle::new(trial_trade_account_oracle_id, wallet.clone())
            .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))
}

/// Deploy (or load) the dedicated trial trade account oracle and keep its
/// implementation current. The implementation follows the trade-account
/// implementation's lifecycle: seeded when the oracle has none, upgraded
/// under `should_upgrade_bytecode`. The cosigner is opt-in: providing one
/// also (re)deploys the implementation and configures the cosigner; without
/// one, the configured cosigner is left untouched. This runs before
/// ownership transfer since it writes to the oracle.
async fn deploy_trial_trade_account_oracle<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    trial_trade_account_oracle_id: Option<ContractId>,
    trial_cosigner: Option<fuels::types::Address>,
    salt: Salt,
) -> anyhow::Result<ContractId>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    let mut trial_deploy_config = TrialTradeAccountDeployConfig {
        salt,
        ..Default::default()
    };
    if let Some(cosigner) = trial_cosigner {
        trial_deploy_config = trial_deploy_config.with_cosigner(cosigner);
    }
    let deploy_config = TrialDeployConfig::Latest(trial_deploy_config);

    let oracle_id = match trial_trade_account_oracle_id {
        None => {
            let trial_deploy =
                TrialTradeAccountDeploy::deploy(&deployer_wallet, &deploy_config).await?;
            tracing::info!(
                "TrialTradeAccountOracle: {} (implementation {:?}, cosigner {:?})",
                trial_deploy.oracle_id,
                trial_deploy.trial_trade_account_blob_id,
                trial_cosigner,
            );
            trial_deploy.oracle_id
        }
        Some(oracle_id) => {
            let current_trial_impl =
                TrialTradingAccountOracle::new(oracle_id, deployer_wallet.clone())
                    .methods()
                    .get_trial_account_impl()
                    .simulate(Execution::state_read_only())
                    .await?
                    .value;
            if current_trial_impl.is_none()
                || should_upgrade_bytecode
                || trial_cosigner.is_some()
            {
                let trial_deploy = TrialTradeAccountDeploy::deploy_to_oracle(
                    &deployer_wallet,
                    oracle_id,
                    &deploy_config,
                )
                .await?;
                tracing::info!(
                    "Trial implementation {:?} deployed to oracle {} (cosigner {:?})",
                    trial_deploy.trial_trade_account_blob_id,
                    oracle_id,
                    trial_cosigner,
                );
            }
            oracle_id
        }
    };

    Ok(oracle_id)
}

async fn deploy_trade_account_registry<W>(
    deployer_wallet: W,
    should_upgrade_bytecode: bool,
    trade_account_deploy: TradeAccountDeploy<W>,
    trial_trade_account_oracle_id: ContractId,
    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,
                trial_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 trial_trade_account_proxy_blob =
            TradeAccountRegistryManager::register_trial_proxy_blob(
                &deployer_wallet,
                &trade_account_registry_deploy_config,
            )
            .await?;

        let trade_account_register_blob = TradeAccountRegistryManager::register_blob(
            &deployer_wallet,
            trade_account_oracle_id,
            trial_trade_account_oracle_id,
            trade_account_proxy_blob.id,
            trial_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,
                    trial_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?;

    // Set the maintainer while the deployer is still the owner, i.e. before any
    // ownership transfer below (`owner_grant_role`/`owner_revoke_role` are
    // `only_owner`).
    set_order_book_maintainer(&order_book, ownership_options, &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 set_order_book_maintainer<W>(
    order_book: &OrderBookManager<W>,
    ownership_options: &OwnershipTransferOptions,
    market_symbol: &str,
) -> anyhow::Result<()>
where
    W: Account + ViewOnlyAccount + Clone + 'static,
{
    // Revoke the maintainer role from the previous holders first, so the role is
    // rotated rather than accumulating holders across upgrades. Revoking an
    // account that does not hold the role is a no-op on-chain.
    for account in &ownership_options.revoke_orderbook_maintainers {
        tracing::info!(
            "[{}] Revoking ORDERBOOK_MAINTAINER_ROLE from {}",
            market_symbol,
            account
        );
        order_book
            .contract
            .methods()
            .owner_revoke_role(ORDERBOOK_MAINTAINER_ROLE, Identity::Address(*account))
            .call()
            .await?;
    }

    for account in &ownership_options.new_orderbook_maintainers {
        tracing::info!(
            "[{}] Granting ORDERBOOK_MAINTAINER_ROLE to {}",
            market_symbol,
            account
        );
        order_book
            .contract
            .methods()
            .owner_grant_role(ORDERBOOK_MAINTAINER_ROLE, Identity::Address(*account))
            .call()
            .await?;
    }

    Ok(())
}

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());
    }
}