subgraph upgrade

[0xgleb]

Motivation

We need to index orderbook V5 events

Solution

Update subgraph to work with V5 orderbook

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Summary by CodeRabbit

Summary by CodeRabbit

• New Features

  • Introduced decimal floating-point arithmetic for vault balances and amounts, improving precision across deposit, withdrawal, and trading operations.
  • Added support for a new decimal float contract, enabling accurate handling of token decimals.

• Improvements

  • Updated event handling to support new versions with enhanced parameter structures and byte-based vault identifiers.
  • Simplified ERC20 entity management for improved reliability.
  • Streamlined network configuration to focus on mainnet and arbitrum-one deployments.
  • Enhanced subgraph manifest with updated ABIs and event signatures for improved compatibility.

• Tests

  • Refactored and expanded test coverage to support new data types and floating-point arithmetic, ensuring robust validation of all major features.

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Walkthrough

This update migrates the subgraph and its supporting scripts to use decimal floating-point arithmetic (via a new DecimalFloat contract) for all amounts and balances, replacing previous BigInt usage. It updates event types and schemas, modifies handler and entity logic, refactors vault and order identifiers to Bytes, and adapts all tests and configuration files accordingly. Network configuration is also streamlined.

Changes

Files/Groups	Change Summary
.github/workflows/deploy-subgraph.yaml, .github/workflows/test-subgraph.yml	Updated workflow steps to run rainix-sol-prelude and rainix-rs-prelude in nested directories; added extra setup steps for subgraph unit tests.
lib/rain.interpreter	Updated submodule commit reference.
pointers.sh, prep-all.sh	Added setup commands for rain.math.float library in nested directories using nix develop.
subgraph/networks.json	Removed all networks except "arbitrum-one" and "mainnet"; updated or cleared OrderBook addresses and startBlocks.
subgraph/package.json	Added dependency: source-map-support@^0.5.21.
subgraph/schema.graphql	Changed all BigInt! fields for amounts, balances, and vault IDs to Bytes!; updated interface implementations.
subgraph/subgraph.yaml	Added DecimalFloat ABI; updated event handler mappings to new event versions with changed parameter types and structures.
subgraph/src/float.ts	New module providing Float type alias, network-to-address mapping, and calculator contract instantiation.
subgraph/src/erc20.ts	Removed makeERC20EntityId; now uses raw addresses as ERC20 entity IDs.
subgraph/src/vault.ts	Refactored vault IDs to Bytes; introduced VaultBalanceChange class; all balance logic uses decimal float calculator.
subgraph/src/deposit.ts, subgraph/src/withdraw.ts, subgraph/src/clear.ts, subgraph/src/takeorder.ts, subgraph/src/tradevaultbalancechange.ts	Refactored all event handlers and entity creation to use decimal float calculator, new event types, and Bytes for vault IDs and amounts; updated function signatures and logic accordingly.
subgraph/src/handlers.ts, subgraph/src/order.ts	Updated all handler and entity creation signatures to use new event versions (V2/V3), Bytes vault IDs, and float arithmetic; adjusted imports.
subgraph/tests/*.ts	Refactored all tests to use new IOV2 class, Bytes for vault IDs, and decimal float constants for amounts/balances; updated event mocks, assertions, and setup to match new types and logic; added/updated float mock utilities and test helpers.

Sequence Diagram(s)

sequenceDiagram
    participant Subgraph
    participant DecimalFloatContract
    participant Vault
    participant EventHandler

    Note over Subgraph: On event (DepositV2, WithdrawV2, etc.)
    Subgraph->>EventHandler: Receives event with Bytes vaultId, Float amount
    EventHandler->>DecimalFloatContract: Uses calculator for arithmetic (add, sub, minus, gt)
    DecimalFloatContract-->>EventHandler: Returns Float result
    EventHandler->>Vault: Updates vault balance with Float values
    EventHandler->>Subgraph: Creates/updates entities with Bytes/Float fields

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Estimated code review effort

5 (>120 minutes)

Possibly related PRs

• orb ob in sg #1908: Also updates "arbitrum-one" network's OrderBook contract address and start block in networks.json.
• arb and base sg #1964: Updates OrderBook contract addresses and start blocks for "base" and "arbitrum-one" networks in networks.json.
• Add pre formatted amount fields to the sdk classes #1994: Adds preformatted amount strings to SDK classes representing vaults and balance changes, related to decimal float handling improvements.

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[0xgleb]

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[findolor]

is this used?