#!/bin/bash

# MEV Bot Profit Monitoring Script
# Tracks bot performance and profitability

CONTRACT_ADDRESS=$(cat .contract-address 2>/dev/null || echo "")
RPC_URL="${ARBITRUM_RPC_URL:-https://arb1.arbitrum.io/rpc}"

if [ -z "$CONTRACT_ADDRESS" ]; then
    echo "❌ Contract not deployed yet. Run ./scripts/deploy-contract.sh first"
    exit 1
fi

echo "📊 MEV Flash Loan Bot - Profit Monitor"
echo "======================================"
echo ""
echo "Contract: $CONTRACT_ADDRESS"
echo "Network: Arbitrum (Chain ID 42161)"
echo ""

# Get contract owner
OWNER=$(cast call "$CONTRACT_ADDRESS" "owner()(address)" --rpc-url "$RPC_URL")
echo "👤 Owner: $OWNER"

# Get ETH balance
BALANCE=$(cast balance "$OWNER" --rpc-url "$RPC_URL" --ether)
echo "💰 ETH Balance: $BALANCE ETH"
echo ""

# Check recent transactions
echo "📈 Recent Activity:"
echo "  View on Arbiscan: https://arbiscan.io/address/$CONTRACT_ADDRESS"
echo ""

# Monitor in real-time
echo "🔄 Monitoring for new profits (press Ctrl+C to stop)..."
echo ""

# Watch for ArbitrageExecuted events
cast logs \
    --address "$CONTRACT_ADDRESS" \
    --from-block latest \
    --follow \
    --rpc-url "$RPC_URL" \
    "ArbitrageExecuted(address indexed asset, uint256 amount, uint256 profit, uint256 gasUsed)" \
    2>/dev/null | while read -r line; do
        echo "✅ PROFIT! $line"
        echo "  $(date)"
    done

# If cast logs not available, fall back to polling
echo "Polling for events every 5 seconds..."
LAST_BLOCK=$(cast block-number --rpc-url "$RPC_URL")

while true; do
    sleep 5
    CURRENT_BLOCK=$(cast block-number --rpc-url "$RPC_URL")

    if [ "$CURRENT_BLOCK" -gt "$LAST_BLOCK" ]; then
        # Check for new profits
        BALANCE_NEW=$(cast balance "$OWNER" --rpc-url "$RPC_URL" --ether)

        if [ "$BALANCE_NEW" != "$BALANCE" ]; then
            DIFF=$(echo "$BALANCE_NEW - $BALANCE" | bc)
            echo "💰 Balance changed: $BALANCE ETH -> $BALANCE_NEW ETH (Δ $DIFF ETH)"
            BALANCE=$BALANCE_NEW
        fi

        LAST_BLOCK=$CURRENT_BLOCK
    fi
done