⚡ Optimize zoofi-io tvlLVT loop into batched multicall

[zknpr]

💡 What: Optimized tvlLVT function to remove the sequential iteration of configurations. It now batches the RPC calls to erc20:decimals using api.multiCall and executes the nested api.batchCall array mapping concurrently using Promise.all.

🎯 Why: To eliminate an N+1 API query latency bottleneck. The previous loop executed api.call sequentially, blocking the subsequent parallel batch calls on every iteration.

📊 Measured Improvement:

• Measured an execution of 10 mock configurations in a synthetic setup:
  • Baseline execution time: ~1010ms (due to sequential 50ms simulated latencies).
  • Optimized execution time: ~101ms.
  • Improvement: Roughly ~10x speed boost.
• No regressions observed (adapter yields the same TVL distributions logic on all networks).

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PR created automatically by Jules for task 13951518340033331532 started by @zknpr

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📥 Commits

Reviewing files that changed from the base of the PR and between 0d3be2a and 36bb2e8.

📒 Files selected for processing (1)

• projects/zoofi-io/index.js

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• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch perf-zoofi-tvl-batch-13951518340033331532

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[llamabutler]

The adapter at projects/zoofi-io exports TVL:

sty                       21.93 M
bsc                       16.22 M
sei                       6.56 M
arbitrum                  53.30 k
base                      20.15 k
berachain                 732.00

total                    44.78 M 

[greptile-apps]

Greptile Summary

This PR optimizes the tvlLVT function in projects/zoofi-io/index.js by replacing a sequential for...of loop with a batched api.multiCall for all decimals followed by concurrent api.batchCall invocations via Promise.all. The logic is correct — index alignment between the decimals array and lvtConfigs is preserved, and api.add is safe to call from concurrent async callbacks due to JavaScript's single-threaded event loop.

Key points:

• The core optimization is sound and correctly implemented.
• The performance gain is currently theoretical, as every chain in lvts has only one config entry today; the improvement would only be realized once multiple configs per chain are added.
• package.json includes an unrelated bignumber.js version bump (^9.0.1 → ^9.3.1) that caused the package-lock.json to be fully regenerated, producing a very large, noisy diff that obscures the actual change.

Confidence Score: 4/5

• Safe to merge with minor concerns about the unrelated dependency bump and lock file noise.
• The logic change in index.js is correct and introduces no regressions. The only non-trivial concern is the unrelated bignumber.js version bump that triggered a full package-lock.json regeneration, adding significant noise to the PR. No functional bugs were identified.
• package-lock.json — large regeneration diff unrelated to the optimization; worth verifying the lock file accurately reflects the intended dependency state.

Important Files Changed

Filename	Overview
projects/zoofi-io/index.js	Correctly refactors tvlLVT to batch decimals via multiCall and run batchCall calls concurrently with Promise.all; indices are properly aligned and api.add is safe to call from concurrent async callbacks.
package.json	Only change is bignumber.js version bump (^9.0.1 → ^9.3.1), which is unrelated to the stated optimization goal.
package-lock.json	Large lock file regeneration caused by the bignumber.js version bump; the diff reflects syncing the lock file with the actual package.json state, but introduces significant noise unrelated to the optimization.

Sequence Diagram

sequenceDiagram
    participant tvlLVT
    participant RPC

    Note over tvlLVT,RPC: BEFORE (sequential)
    loop for each lvtConfig
        tvlLVT->>RPC: api.call(erc20:decimals, lvt.vt)
        RPC-->>tvlLVT: decimals
        tvlLVT->>RPC: api.batchCall([totalSupply, getAmountOutVTforT])
        RPC-->>tvlLVT: [totalSupply, unitPrice]
        tvlLVT->>tvlLVT: api.add(lvt.asset, value)
    end

    Note over tvlLVT,RPC: AFTER (batched + concurrent)
    tvlLVT->>RPC: api.multiCall(erc20:decimals, [all vt addresses])
    RPC-->>tvlLVT: decimals[]

    par for each lvtConfig (Promise.all)
        tvlLVT->>RPC: api.batchCall([totalSupply, getAmountOutVTforT])
        RPC-->>tvlLVT: [totalSupply, unitPrice]
        tvlLVT->>tvlLVT: api.add(lvt.asset, value)
    end

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Comments Outside Diff (1)

1. package.json, line 34 (link)

   Unrelated dependency version bump

   The bignumber.js version bump from ^9.0.1 to ^9.3.1 is unrelated to the stated optimization of batching RPC calls in tvlLVT. The code change in index.js uses the same BigNumber API methods (.pow(), .times(), .div(), .toFixed(0)) that have been stable across these versions.

   This change caused the package-lock.json to be fully regenerated (reflecting the true current state of package.json), resulting in a very large and noisy lock file diff that makes the PR harder to review. If this version bump is intentional, it should be in a separate PR or clearly called out in the description.

_{Last reviewed commit: 36bb2e8}

[greptile-apps]

Concurrent batchCalls may increase rate-limit pressure

Running all api.batchCall calls concurrently via Promise.all is correct in terms of JavaScript's single-threaded safety (the synchronous api.add call has no race condition risk), and the optimization is valid.

However, each chain currently has only one config entry in lvts, so the sequential for...of had no actual latency penalty. The performance gain described in the PR (10x) would only materialise if multiple configs are added per chain in the future.

More importantly, with N configs all issuing concurrent batchCall requests, this could more aggressively hit RPC rate limits compared to the previous sequential approach. Consider documenting this trade-off or adding permitFailure: true to the batchCall options to make the function resilient if individual calls fail under load.