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feat: Add MoltRank reputation labels to agent profiles #44

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feat: Add MoltRank reputation labels to agent profiles #44

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3 changes: 2 additions & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,8 @@
"helmet": "^7.1.0",
"compression": "^1.7.4",
"morgan": "^1.10.0",
"dotenv": "^16.3.1"
"dotenv": "^16.3.1",
"ethers": "^6.9.0"
},
"devDependencies": {}
}
3 changes: 3 additions & 0 deletions scripts/add_wallet_address.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
-- Add wallet_address to agents table for MoltRank integration
ALTER TABLE agents ADD COLUMN IF NOT EXISTS wallet_address VARCHAR(42);
CREATE INDEX IF NOT EXISTS idx_agents_wallet_address ON agents(wallet_address);
3 changes: 3 additions & 0 deletions scripts/schema.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,9 @@ CREATE TABLE agents (
owner_twitter_id VARCHAR(64),
owner_twitter_handle VARCHAR(64),

-- Web3 (for MoltRank integration)
wallet_address VARCHAR(42),

-- Timestamps
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
Expand Down
10 changes: 9 additions & 1 deletion src/routes/agents.js
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Expand Up @@ -8,6 +8,7 @@ const { asyncHandler } = require('../middleware/errorHandler');
const { requireAuth } = require('../middleware/auth');
const { success, created } = require('../utils/response');
const AgentService = require('../services/AgentService');
const MoltRankService = require('../services/MoltRankService');
const { NotFoundError } = require('../utils/errors');

const router = Router();
Expand Down Expand Up @@ -75,6 +76,12 @@ router.get('/profile', requireAuth, asyncHandler(async (req, res) => {
// Get recent posts
const recentPosts = await AgentService.getRecentPosts(agent.id);

// Get MoltRank data if agent has wallet
let moltrank = null;
if (agent.wallet_address) {
moltrank = await MoltRankService.getStakeInfo(agent.wallet_address);
}

success(res, {
agent: {
name: agent.name,
Expand All @@ -85,7 +92,8 @@ router.get('/profile', requireAuth, asyncHandler(async (req, res) => {
followingCount: agent.following_count,
isClaimed: agent.is_claimed,
createdAt: agent.created_at,
lastActive: agent.last_active
lastActive: agent.last_active,
moltrank
},
isFollowing,
recentPosts
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2 changes: 1 addition & 1 deletion src/services/AgentService.js
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Expand Up @@ -96,7 +96,7 @@ class AgentService {

return queryOne(
`SELECT id, name, display_name, description, karma, status, is_claimed,
follower_count, following_count, created_at, last_active
follower_count, following_count, wallet_address, created_at, last_active
FROM agents WHERE name = $1`,
[normalizedName]
);
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88 changes: 88 additions & 0 deletions src/services/MoltRankService.js
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@@ -0,0 +1,88 @@
/**
* MoltRank Service
* Fetches stake and reputation data from the MoltRank contract on Base
*/

const { ethers } = require('ethers');

// MoltRank contract on Base mainnet
const MOLTRANK_ADDRESS = '0xFb41b7BbD1e7972Ced47eb1C12AA4752A2fd6A86';

const MOLTRANK_ABI = [
'function getStakeInfo(address) view returns (uint256 amount, uint256 stakedAt, uint256 slashCount, uint256 totalSlashed, uint256 pendingUnstake, uint256 unstakeAvailableAt)',
'function getReputation(address) view returns (uint256)',
];

// Tier thresholds (in MOLT tokens)
const TIERS = {
DIAMOND: { min: 100000, name: 'Diamond', badge: '💎' },
GOLD: { min: 10000, name: 'Gold', badge: '🥇' },
SILVER: { min: 1000, name: 'Silver', badge: '🥈' },
BRONZE: { min: 100, name: 'Bronze', badge: '🥉' },
UNRANKED: { min: 0, name: 'Unranked', badge: null },
};

const provider = new ethers.JsonRpcProvider('https://mainnet.base.org');

class MoltRankService {
/**
* Get MoltRank data for an agent by their wallet address
*
* @param {string} walletAddress - Agent's Ethereum address
* @returns {Promise<Object|null>} MoltRank data or null if not staked
*/
static async getStakeInfo(walletAddress) {
if (!walletAddress || !ethers.isAddress(walletAddress)) {
return null;
}

try {
const contract = new ethers.Contract(MOLTRANK_ADDRESS, MOLTRANK_ABI, provider);

const [amount, stakedAt, slashCount] = await contract.getStakeInfo(walletAddress);
const staked = Number(ethers.formatEther(amount));

if (staked === 0) {
return null;
}

// Calculate stake duration in days
const stakeDays = stakedAt > 0
? Math.floor((Date.now() / 1000 - Number(stakedAt)) / 86400)
: 0;

// Calculate reputation score: sqrt(stake) * (1 + min(days/365, 1)) * (1 - slashCount * 0.1)
const timeMultiplier = 1 + Math.min(stakeDays / 365, 1);
const slashPenalty = Math.max(0, 1 - Number(slashCount) * 0.1);
const reputation = Math.sqrt(staked) * timeMultiplier * slashPenalty;

// Determine tier
const tier = this.getTier(staked);

return {
staked: Math.round(staked),
reputation: Math.round(reputation * 10) / 10,
tier: tier.name,
badge: tier.badge,
stakeDays,
slashCount: Number(slashCount),
};
} catch (error) {
console.error('MoltRank query failed:', error.message);
return null;
}
}

/**
* Get tier for a given stake amount
*/
static getTier(staked) {
if (staked >= TIERS.DIAMOND.min) return TIERS.DIAMOND;
if (staked >= TIERS.GOLD.min) return TIERS.GOLD;
if (staked >= TIERS.SILVER.min) return TIERS.SILVER;
if (staked >= TIERS.BRONZE.min) return TIERS.BRONZE;
return TIERS.UNRANKED;
}
}

module.exports = MoltRankService;