VIP 5 Perpetual Taker + Tier 3 Referral:

Base Fee: 0.50%
VIP 5 Fee: 0.27% (46% VIP discount)
Tier 3 Discount: 10% off VIP fee
Final Fee: 0.27% × 0.90 = 0.243%

Total Savings: 51.4% off base

Trade: Open 100x Long BTC-USD ($100,000 position)

VIP 0 (Base Tier):
- Taker Fee: $100,000 × 0.50% = $500
- Maker Fee: $100,000 × 0.10% = $100

VIP 5 (Tier 5):
- Taker Fee: $100,000 × 0.27% = $270
- Maker Fee: $100,000 × 0.00% = $0

VIP 9 (Top Tier):
- Taker Fee: $100,000 × 0.15% = $150
- Maker Fee: $100,000 × 0.00% = $0

With Tier 3 Referral Discount (10% off):
- VIP 5 Taker: $270 × 0.90 = $243
- VIP 9 Taker: $150 × 0.90 = $135

Trade: Buy 1 BTC at $50,000 (Market Order)

VIP 0:
- Taker Fee: $50,000 × 0.20% = $100
- Total Cost: $50,100

VIP 5:
- Taker Fee: $50,000 × 0.10% = $50
- Total Cost: $50,050

VIP 9 with Maker Rebate:
- Maker Rebate: $50,000 × 0.02% = -$10 (you earn)
- Total Cost: $49,990

Position: Open $50,000 BTC Long with 5x leverage

Collateral Required: $10,000
Position Fee: $50,000 × 0.10% = $50

If liquidated:
- Remaining Collateral: $500
- Liquidation Fee: $500 × 5% = $25 (to liquidator)
- Insurance Fund: $475

import { DEX } from '@luxfi/trading'

const dex = await DEX({ rpcUrl: 'https://api.lux.network/rpc' })

// Get your current fee tier
const fees = await dex.getFees()

console.log(`30-day Volume: $${fees.volume30d}`)
console.log(`VIP Tier: ${fees.vipTier}`)
console.log(`Maker Fee: ${fees.makerFee}%`)
console.log(`Taker Fee: ${fees.takerFee}%`)
console.log(`Referral Discount: ${fees.referralDiscount}%`)
console.log(`LUX Discount Applied: ${fees.luxDiscount}`)

// Check progress to next VIP tier
const progress = await dex.getVIPProgress()

console.log(`Current Tier: VIP ${progress.currentTier}`)
console.log(`Current Volume: $${progress.volume30d}`)
console.log(`Next Tier: VIP ${progress.nextTier}`)
console.log(`Volume Needed: $${progress.volumeToNextTier}`)
console.log(`Days Until Reset: ${progress.daysUntilReset}`)

// Pre-calculate fee for a trade
const estimate = await dex.estimateFee({
  symbol: 'BTC-USD-PERP',
  side: 'buy',
  type: 'market',
  size: '100000'    // $100K notional
})

console.log(`VIP Tier: ${estimate.vipTier}`)
console.log(`Base Fee: ${estimate.baseFee}%`)
console.log(`VIP Discount: ${estimate.vipDiscount}%`)
console.log(`Referral Discount: ${estimate.referralDiscount}%`)
console.log(`Final Fee: ${estimate.finalFee}%`)
console.log(`Fee Amount: $${estimate.feeAmount}`)

// Get fee history for account
const history = await dex.getFeeHistory({
  startTime: Date.now() - 30 * 24 * 60 * 60 * 1000, // 30 days
  endTime: Date.now()
})

console.log(`Total Fees Paid: $${history.totalFees}`)
console.log(`Maker Fees: $${history.makerFees}`)
console.log(`Taker Fees: $${history.takerFees}`)
console.log(`Rebates Earned: $${history.rebates}`)
console.log(`Referral Discounts: $${history.referralDiscounts}`)

Funding Payment = Position Size × Funding Rate

Example:
- Long Position: $100,000
- Funding Rate: 0.01% (longs pay shorts)
- Payment: $100,000 × 0.01% = $10

If funding rate is negative, shorts pay longs.

// Get current funding rate
const funding = await dex.getFundingRate('BTC-USD-PERP')

console.log(`Current Rate: ${funding.rate}%`)
console.log(`Annualized: ${(funding.rate * 3 * 365).toFixed(2)}%`)
console.log(`Predicted Next: ${funding.predictedRate}%`)
console.log(`Time Until Settlement: ${funding.nextSettlement}`)

import { DEX } from '@luxfi/trading'

const dex = await DEX({ rpcUrl: 'https://api.lux.network/rpc' })

// Use limit orders for maker fees
const order = await dex.limitBuy('BTC-USDC', '1.0', '49900.00', {
  postOnly: true  // Reject if would be taker
})

// Check fee before market order
const fee = await dex.estimateFee({
  symbol: 'BTC-USD-PERP',
  type: 'market',
  size: '100000'
})

if (fee.finalFee > 0.2) {
  console.log('Consider limit order for lower fee')
}

// Check volume needed for next tier
const progress = await dex.getVIPProgress()

if (progress.volumeToNextTier < 100000) {
  console.log(`Only $${progress.volumeToNextTier} to VIP ${progress.nextTier}!`)
  console.log(`Potential savings: ${progress.savingsAtNextTier}%`)
}