reorg fill missing blocks

[nischitpra]

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Enhanced reorganization detection to gracefully handle missing or incomplete block data
  • Improved error handling to prevent application crashes from invalid block information

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 48102cb8-b5bc-4e15-8b51-a1c861d611a7

📥 Commits

Reviewing files that changed from the base of the PR and between 4f9cbc4 and c9f4fd1.

📒 Files selected for processing (2)

• internal/committer/reorg.go
• internal/libs/clickhouse.go

Disabled knowledge base sources:

• Linear integration is disabled

You can enable these sources in your CodeRabbit configuration.

---

Walkthrough

These changes add defensive nil checks for ClickHouse block headers and enhance reorganization detection logic to identify and handle gaps where block headers are missing within the requested range.

Changes

Cohort / File(s)	Summary
Reorg gap detection internal/committer/reorg.go	Enhanced reorg detection to identify gaps where block headers are nil or contain nil Number fields within the [startBlock, endBlock) range. Records first/last missing block numbers and count, logs warnings, and includes the missing headers range in the inconsistent range. Updated sequential/hash continuity loop to skip nil header entries and modified lastHeaderBlock derivation to only update on non-nil headers.
Nil number safeguard internal/libs/clickhouse.go	Added nil check for block.Number before dereferencing to prevent nil pointer errors during Uint64() conversion. Logs warning and continues when nil is encountered.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch np/reorg_fill_missing_blocks

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}