## Overview The `LabHelper` library provides utility functions and data structures for managing community lab contributions and metadata in a decentralized governance system. It offers robust validation, contribution scoring, and metadata generation mechanisms for lab-related interactions. ## Interface | Function | Description | Parameters | Returns | |----------|-------------|------------|---------| | `validateLabCreation` | Validates lab creation parameters | `_owner` (address), `_initialFunds` (uint256) | `bool` | | `calculateContributionScore` | Calculates total contribution score | `_records` (ContributionRecord[]) | `uint256` | | `validateContributor` | Checks contributor validity | `_contributor` (address), `_registry` (ILabRegistry) | `bool` | | `generateLabMetadata` | Creates initial lab metadata | `_owner` (address) | `LabMetadata` | ## Events No explicit events defined in this library. Events would typically be implemented in the consuming contract. ## Storage Layout - `LabMetadata` struct: - `owner`: Lab owner address - `createdAt`: Timestamp of lab creation - `lastUpdated`: Last update timestamp - `totalContributions`: Cumulative contribution amount - `isActive`: Lab activation status - `ContributionRecord` struct: - `contributor`: Contributor address - `amount`: Contribution amount - `timestamp`: Contribution timestamp - `contributionType`: Type of contribution ## Access Control - Strict validation for lab creation - Contributor validation against external registry - Contribution type multiplier-based scoring system ## Security Considerations - Prevents zero-address assignments - Enforces minimum contribution threshold - External registry validation for contributors - Pure functions minimize state manipulation risks - Error handling with custom error types ## Deployment - Compatible with Solidity ^0.8.19 - Deployment Network: ChunkNet DevNet - RPC URL: https://rpc.chunknet.org - Chain ID: 214562 - Recommended Deployment Steps: 1. Verify compiler settings 2. Set appropriate gas limits 3. Deploy with authorized owner address 4. Configure external registry connection ## Testing - Unit test scenarios: 1. Lab creation validation 2. Contribution score calculation 3. Contributor validation 4. Metadata generation 5. Edge case handling (zero addresses, low contributions) - Recommended test coverage: 95% - Use hardhat/foundry for comprehensive testing - Simulate various contribution types and scenarios