add some refactors to airdrop contract

[jgimeno]

Summary by CodeRabbit

• New Features

  • Enhanced security checks for ownership and authorization during reward distributions in airdrop campaigns.

• Bug Fixes

  • Improved error handling for insufficient funds scenarios in airdrop campaigns.

• Tests

  • Added a new test to ensure proper behavior when allocating more funds than available.

• Refactor

  • Streamlined access to types and traits in external modules by modifying re-exports.

[coderabbitai]

Walkthrough

The airdrop contract has been enhanced for better security and error handling; it now verifies ownership and authorization before rewarding users and efficiently handles cases of insufficient funds. The associated tests have been expanded to cover these new scenarios. Additionally, the nibiru-std library has seen a streamlining of its exports, removing direct re-exports of certain types, possibly to encourage more explicit module interactions.

Changes

Files	Change Summary
contracts/airdrop/src/contract.rs	Updated to include ownership verification, authorization checks, and improved error handling for insufficient funds.
contracts/airdrop/src/tests/execute/reward_users.rs	Added new test for insufficient funds scenario and updated imports.
nibiru-std/src/proto/mod.rs	Removed re-exports of type_url_cosmos and type_url_nibiru.

🐇✨
In the realm where smart contracts thrive,
A rabbit hopped in, code in drive.
With a flip and a hop, security's tight,
Bugs scatter away in the moonlit night. 🌙🚀

Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

Share

• X
• Mastodon
• Reddit
• LinkedIn

---

Tips

Chat

There are 3 ways to chat with CodeRabbit's AI:

• Review comments: Directly reply to a review comment made by CodeRabbit. Example:
  • I pushed a fix in commit <commit_id>.
  • Generate unit-tests for this file.
• Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
  • @coderabbitai generate unit tests for this file.
  • @coderabbitai modularize this function.
• PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
  • @coderabbitai generate interesting stats about this repository from git and render them as a table.
  • @coderabbitai show all the console.log statements in this repository.
  • @coderabbitai read src/utils.ts and generate unit tests.
  • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid.
  • @coderabbitai read the files in the src/scheduler package and generate README in the markdown format.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (invoked as PR comments)

• @coderabbitai pause to pause the reviews on a PR.
• @coderabbitai resume to resume the paused reviews.
• @coderabbitai review to trigger a review. This is useful when automatic reviews are disabled for the repository.
• @coderabbitai resolve resolve all the CodeRabbit review comments.
• @coderabbitai help to get help.

Additionally, you can add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.

CodeRabbit Configration File (.coderabbit.yaml)

• You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
• The JSON schema for the configuration file is available here.
• If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/coderabbit-overrides.v2.json

CodeRabbit Discord Community

Join our Discord Community to get help, request features, and share feedback.

[codecov]

Codecov Report

Attention: 55 lines in your changes are missing coverage. Please review.

Comparison is base (444f243) 85.53% compared to head (902b788) 85.16%.
Report is 7 commits behind head on main.

Additional details and impacted files

Files	Coverage Δ
contracts/airdrop/src/state.rs	100.00% <100.00%> (ø)
nibiru-std/src/proto/mod.rs	100.00% <ø> (ø)
contracts/airdrop/src/msg.rs	40.00% <40.00%> (ø)
contracts/airdrop/src/contract.rs	71.58% <71.58%> (ø)

... and 8 files with indirect coverage changes

[coderabbitai]

Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits

Files that changed from the base of the PR and between bd792e4 and 902b788.

Files selected for processing (3)

• contracts/airdrop/src/contract.rs (1 hunks)
• contracts/airdrop/src/tests/execute/reward_users.rs (2 hunks)
• nibiru-std/src/proto/mod.rs (1 hunks)

Additional comments: 5

contracts/airdrop/src/tests/execute/reward_users.rs (2)

• 5-5: The import of StdError is added to support error handling in the new test case.

• 175-216: The new test case test_fails_when_we_try_to_allocate_more_than_available correctly checks the contract's behavior when the reward allocation exceeds the available funds. It asserts that the response is an error with the message "Not enough funds in the campaign", which aligns with the PR objectives.

nibiru-std/src/proto/mod.rs (1)

• 5-5: The removal of pub use type_url_cosmos::*; and pub use type_url_nibiru::*; may impact how external modules access these types and traits. Ensure that all references to these modules in the codebase are updated to the new access pattern.

Verification successful

---

Based on the executed scripts and their results, there are no direct or indirect references to type_url_cosmos or type_url_nibiru in the codebase outside of the mod.rs file. This suggests that the removal of the pub use declarations for these modules has not resulted in any unresolved references. The codebase appears to be consistent with the changes made in the pull request.

Scripts Executed

The following scripts were executed for the analysis:

---

Script:

#!/bin/bash
# Search for direct usage of types and traits from type_url_cosmos and type_url_nibiru.
rg --type rust --glob '!mod.rs' 'type_url_cosmos::|type_url_nibiru::'

Length of output: 71

---

---

Script:

#!/bin/bash
# Search for indirect usage of types and traits that might have been re-exported from type_url_cosmos and type_url_nibiru.
rg --type rust 'type_url_cosmos|type_url_nibiru'

Length of output: 148

---

---

Script:

#!/bin/bash
# Search for any wildcard imports or aliased imports from type_url_cosmos and type_url_nibiru.
rg --type rust 'use .*type_url_cosmos.*;|use .*type_url_nibiru.*;'

Length of output: 68

contracts/airdrop/src/contract.rs (2)

• 106-114: The addition of ownership and authorization checks in the reward_users function is a critical security improvement. It ensures that only the owner or managers can distribute rewards.

• 118-121: The updated error handling for insufficient funds uses early returns, which simplifies the logic and makes it more readable. This change aligns with the PR objectives to improve error handling.