InvestmentPool Contract

The InvestmentPool contract manages individual investment pools with specific terms, lock periods, and guaranteed returns. Each pool operates independently with its own configuration, multisig governance, and LP token system.

Implementation Address (Testnet): 0xed9dFc96392BFcD90610A85d72E79e6c40eDf5ACImplementation Address (Mainnet): 0xdFBB45185a56C4AD1e9bCE5FD784e3C4B5aFD09D

Overview

Investment pools are the core building blocks of EdenVest, where users can:

Deposit cNGN for fixed-term investments
Earn guaranteed returns based on predetermined APY
Receive LP tokens representing pool shares
Get NFT positions for investment tracking
Withdraw at maturity with principal + returns

Pool Architecture

Key Features

🎯 Fixed-Term Investments

Lock periods from 7 days to 2 years
Guaranteed APY rates
Simple interest calculations
Automatic maturity tracking

💰 LP Token Economics

ERC20 tokens representing pool shares
Proportional minting based on pool state
Burn on withdrawal
Tax collection integration

🔒 Multi-Signature Security

Pool funds managed by multisig wallet
Admin functions require proper authorization
Emergency pause capabilities
Configurable governance parameters

Pool Configuration

PoolConfig Structure

struct PoolConfig {
    string name;                // Pool display name
    uint256 lockDuration;       // Lock period in seconds (7 days - 2 years)
    uint256 minInvestment;      // Minimum investment amount
    uint256 maxInvestment;      // Maximum investment amount
    uint256 utilizationCap;     // Total pool capacity (0 = unlimited)
    uint256 expectedRate;       // APY in basis points (1500 = 15%)
    uint256 taxRate;            // Pool-specific tax rate (0 = use global)
    bool acceptingDeposits;     // Whether pool accepts new deposits
}

Configuration Examples

const poolConfig = {
  name: "Conservative 30-Day Pool",
  lockDuration: 30 * 24 * 60 * 60, // 30 days
  minInvestment: ethers.utils.parseEther("100"), // 100 cNGN
  maxInvestment: ethers.utils.parseEther("5000"), // 5,000 cNGN
  utilizationCap: ethers.utils.parseEther("50000"), // 50k total capacity
  expectedRate: 800, // 8% APY
  taxRate: 200, // 2% tax rate
  acceptingDeposits: true
};

const poolConfig = {
  name: "High Yield 1-Year Pool",  
  lockDuration: 365 * 24 * 60 * 60, // 1 year
  minInvestment: ethers.utils.parseEther("1000"), // 1,000 cNGN
  maxInvestment: ethers.utils.parseEther("25000"), // 25k cNGN
  utilizationCap: ethers.utils.parseEther("500000"), // 500k total capacity
  expectedRate: 1800, // 18% APY
  taxRate: 300, // 3% tax rate
  acceptingDeposits: true
};

Core Functions

Investment Functions

`invest()`

Process investment deposits (called by EdenCore).

function invest(
    address investor, 
    uint256 amount, 
    string memory title
) external 
  returns (uint256 tokenId, uint256 userLPTokens, uint256 taxAmount)

Process Flow:

Validate investment amount and pool state
Calculate LP tokens and tax amount
Create investment record
Mint LP tokens to investor and tax collector
Mint NFT position to investor
Transfer funds to pool multisig

Returns:

tokenId: NFT position token ID
userLPTokens: LP tokens minted to investor
taxAmount: LP tokens minted for tax collection

`withdraw()`

Process investment withdrawals (called by EdenCore).

function withdraw(
    address investor,
    uint256 tokenId, 
    uint256 lpAmount
) external returns (uint256 withdrawAmount)

Validation Requirements:

Investment must be matured (block.timestamp >= maturityTime)
Investor must own the NFT position
Sufficient LP tokens must be provided
Investment must not already be withdrawn

Administrative Functions

`updatePoolConfig()`

Update pool configuration parameters.

function updatePoolConfig(PoolConfig memory config) 
    external onlyRole(POOL_ADMIN_ROLE)

Validation Rules:

Lock duration: 7 days ≤ duration ≤ 2 years
Min investment must be > 0
Max investment must be ≥ min investment
Expected rate must be ≤ 100% APY (10000 basis points)

`setAcceptingDeposits()`

Toggle deposit acceptance.

function setAcceptingDeposits(bool accepting) 
    external onlyRole(POOL_ADMIN_ROLE)

`updatePoolMultisig()`

Change pool multisig wallet address.

function updatePoolMultisig(address newMultisig) 
    external onlyRole(POOL_ADMIN_ROLE)

View Functions

`getPoolConfig()`

Retrieve current pool configuration.

function getPoolConfig() external view returns (PoolConfig memory)

`getInvestment()`

Get investment details by ID.

function getInvestment(uint256 investmentId) 
    external view returns (Investment memory)

Investment Structure:

struct Investment {
    address investor;        // Investor address
    uint256 amount;         // Investment amount (cNGN)
    string title;           // Custom investment title
    uint256 depositTime;    // Deposit timestamp
    uint256 maturityTime;   // Maturity timestamp
    uint256 expectedReturn; // Expected total return
    bool isWithdrawn;       // Withdrawal status
    uint256 lpTokens;       // LP tokens representing investment
}

`getPoolStats()`

Get comprehensive pool statistics.

function getPoolStats() external view returns (
    uint256 deposited,     // Total deposited amount
    uint256 withdrawn,     // Total withdrawn amount  
    uint256 available,     // Available capacity
    uint256 utilization    // Utilization percentage (basis points)
)

`getUserInvestments()`

Get all investment IDs for a user.

function getUserInvestments(address user) 
    external view returns (uint256[] memory)

`isWithdrawable()`

Check if an investment can be withdrawn.

function isWithdrawable(uint256 tokenId) external view returns (bool)

Return Calculations

Expected Return Formula

function _calculateExpectedReturn(uint256 amount) internal view returns (uint256) {
    uint256 timeInSeconds = poolConfig.lockDuration;
    return (amount * poolConfig.expectedRate * timeInSeconds) / (BASIS_POINTS * 365 days);
}

LP Token Calculation

function _calculateLPTokens(uint256 amount) internal view returns (uint256) {
    uint256 totalSupply = IERC20(lpToken).totalSupply();
    
    if (totalSupply == 0) {
        return amount; // 1:1 ratio for first deposit
    } else {
        return (amount * totalSupply) / totalDeposited;
    }
}

Tax Calculation

uint256 effectiveTaxRate = poolConfig.taxRate > 0 
    ? poolConfig.taxRate 
    : edenCore.globalTaxRate();
    
uint256 taxAmount = (totalLPTokens * effectiveTaxRate) / BASIS_POINTS;
uint256 userLPTokens = totalLPTokens - taxAmount;

Integration Examples

Pool Interaction

import { ethers } from 'ethers';
import InvestmentPoolABI from './abis/InvestmentPool.json';

class PoolManager {
  constructor(poolAddress, provider) {
    this.contract = new ethers.Contract(
      poolAddress,
      InvestmentPoolABI,
      provider
    );
  }

  async getPoolInfo() {
    const [config, stats] = await Promise.all([
      this.contract.getPoolConfig(),
      this.contract.getPoolStats()
    ]);

    return {
      name: config.name,
      lockDuration: config.lockDuration.toNumber(),
      expectedRate: config.expectedRate.toNumber() / 100, // Convert to percentage
      minInvestment: ethers.utils.formatEther(config.minInvestment),
      maxInvestment: ethers.utils.formatEther(config.maxInvestment),
      totalDeposited: ethers.utils.formatEther(stats.deposited),
      utilization: stats.utilization.toNumber() / 100, // Convert to percentage
      availableCapacity: ethers.utils.formatEther(stats.available)
    };
  }

  async getUserPositions(userAddress) {
    const investmentIds = await this.contract.getUserInvestments(userAddress);
    
    const positions = await Promise.all(
      investmentIds.map(async (id) => {
        const investment = await this.contract.getInvestment(id);
        return {
          id: id.toNumber(),
          amount: ethers.utils.formatEther(investment.amount),
          title: investment.title,
          depositTime: new Date(investment.depositTime.toNumber() * 1000),
          maturityTime: new Date(investment.maturityTime.toNumber() * 1000),
          expectedReturn: ethers.utils.formatEther(investment.expectedReturn),
          isMatured: investment.maturityTime.toNumber() <= Date.now() / 1000,
          isWithdrawn: investment.isWithdrawn
        };
      })
    );

    return positions;
  }

  calculateReturns(amount, lockDurationDays) {
    const config = await this.contract.getPoolConfig();
    const amountWei = ethers.utils.parseEther(amount.toString());
    const timeInSeconds = lockDurationDays * 24 * 60 * 60;
    
    const expectedReturn = amountWei
      .mul(config.expectedRate)
      .mul(timeInSeconds)
      .div(10000)
      .div(365 * 24 * 60 * 60);

    return {
      principal: amount,
      interest: parseFloat(ethers.utils.formatEther(expectedReturn)),
      total: amount + parseFloat(ethers.utils.formatEther(expectedReturn))
    };
  }
}

Pool Monitoring Dashboard

interface PoolMetrics {
  address: string;
  name: string;
  tvl: number;
  apy: number;
  utilization: number;
  activeInvestments: number;
  avgInvestmentSize: number;
  timeToNextMaturity: number;
}

class PoolMonitor {
  async getPoolMetrics(poolAddresses: string[]): Promise<PoolMetrics[]> {
    return await Promise.all(
      poolAddresses.map(async (address) => {
        const pool = new PoolManager(address, this.provider);
        const info = await pool.getPoolInfo();
        
        return {
          address,
          name: info.name,
          tvl: parseFloat(info.totalDeposited),
          apy: info.expectedRate,
          utilization: info.utilization,
          activeInvestments: await this.getActiveInvestmentCount(address),
          avgInvestmentSize: await this.getAverageInvestmentSize(address),
          timeToNextMaturity: await this.getNextMaturityTime(address)
        };
      })
    );
  }

  async getActiveInvestmentCount(poolAddress: string): Promise<number> {
    // Implementation to count active investments
    const events = await this.contract.queryFilter(
      this.contract.filters.InvestmentCreated(),
      0,
      'latest'
    );
    
    const withdrawnEvents = await this.contract.queryFilter(
      this.contract.filters.InvestmentWithdrawn(),
      0, 
      'latest'
    );

    return events.length - withdrawnEvents.length;
  }
}

Security Features

Access Control

Role	Permissions	Functions
`DEFAULT_ADMIN_ROLE`	Pool administration	All admin functions
`POOL_ADMIN_ROLE`	Pool management	Update config, pause/unpause
`MULTISIG_ROLE`	Pool governance	Multisig operations

Input Validation

// Investment validation
require(poolConfig.acceptingDeposits, "Deposits paused");
require(amount >= poolConfig.minInvestment, "Below minimum");
require(amount <= poolConfig.maxInvestment, "Exceeds maximum");

if (poolConfig.utilizationCap > 0) {
    require(totalDeposited + amount <= poolConfig.utilizationCap, "Exceeds cap");
}

// Withdrawal validation  
require(investment.investor == investor, "Not owner");
require(!investment.isWithdrawn, "Already withdrawn");
require(block.timestamp >= investment.maturityTime, "Not matured");
require(IERC721(nftManager).ownerOf(tokenId) == investor, "NFT not owned");

Emergency Controls

Pause Mechanism: Stop new investments during emergencies
Multisig Protection: Critical functions require multisig approval
Admin Override: Emergency withdrawal capabilities
Upgrade Safety: Proper storage layout maintenance

Events

Investment Events

event InvestmentCreated(
    uint256 indexed investmentId,
    address indexed investor,
    uint256 amount,
    uint256 lpTokens,
    uint256 indexed tokenId,
    uint256 expectedReturn,
    uint256 maturityTime,
    string title
);

event InvestmentWithdrawn(
    uint256 indexed investmentId,
    address indexed investor,
    uint256 withdrawAmount
);

Administrative Events

event PoolConfigUpdated(PoolConfig config);
event PoolMultisigUpdated(address newMultisig);
event DepositsToggled(bool accepting, address admin);

Best Practices

For Pool Administrators

Regular Monitoring: Track pool utilization and performance
Multisig Management: Ensure sufficient multisig wallet balance
Configuration Updates: Adjust parameters based on market conditions
Emergency Preparedness: Have pause/unpause procedures ready

For Developers

Error Handling: Always check transaction success and revert reasons
Event Monitoring: Subscribe to relevant events for real-time updates
Gas Optimization: Batch multiple operations when possible
Testing: Comprehensive test coverage for all scenarios

For Users

Due Diligence: Review pool configuration and multisig setup
Diversification: Spread investments across multiple pools
Maturity Planning: Track investment maturity dates
NFT Security: Secure your position NFTs in safe wallets

LP Token System

Understand the LP token mechanics and economics

NFT Positions

Learn about investment position NFTs and rendering

Pool Factory

Discover how pools are created and deployed

Investment Guide

Step-by-step guide to making investments

​InvestmentPool Contract

​Overview

​Pool Architecture

​Key Features

​🎯 Fixed-Term Investments

​💰 LP Token Economics

​🔒 Multi-Signature Security

​Pool Configuration

​PoolConfig Structure

​Configuration Examples

​Core Functions

​Investment Functions

​invest()

​withdraw()

​Administrative Functions

​updatePoolConfig()

​setAcceptingDeposits()

​updatePoolMultisig()

​View Functions

​getPoolConfig()

​getInvestment()

​getPoolStats()

​getUserInvestments()

​isWithdrawable()

​Return Calculations

​Expected Return Formula

​LP Token Calculation

​Tax Calculation

​Integration Examples

​Pool Interaction

​Pool Monitoring Dashboard

​Security Features

​Access Control

​Input Validation

​Emergency Controls

​Events

​Investment Events

​Administrative Events

​Best Practices

​For Pool Administrators

​For Developers

​For Users

LP Token System

NFT Positions

Pool Factory

Investment Guide

InvestmentPool Contract

Overview

Pool Architecture

Key Features

🎯 Fixed-Term Investments

💰 LP Token Economics

🔒 Multi-Signature Security

Pool Configuration

PoolConfig Structure

Configuration Examples

Core Functions

Investment Functions

`invest()`

`withdraw()`

Administrative Functions

`updatePoolConfig()`

`setAcceptingDeposits()`

`updatePoolMultisig()`

View Functions

`getPoolConfig()`

`getInvestment()`

`getPoolStats()`

`getUserInvestments()`

`isWithdrawable()`

Return Calculations

Expected Return Formula

LP Token Calculation

Tax Calculation

Integration Examples

Pool Interaction

Pool Monitoring Dashboard

Security Features

Access Control

Input Validation

Emergency Controls

Events

Investment Events

Administrative Events

Best Practices

For Pool Administrators

For Developers

For Users