calculateAmountOut.js

// calculate amountOut for puzzle swap
// coef = 0.98 (excludes fee)

calculateAmountOut(coef: number) {
    const tokenOut = this.state.tokenOut
    const tokenIn = this.getTokenIn();
    const BalanceIn = this.state.data.get("global_"+[this.poolData.tokenIds[tokenIn]]+"_balance")
    const BalanceOut = this.state.data.get("global_"+[this.poolData.tokenIds[tokenOut]]+"_balance")

    const amountOut = BalanceOut / this.poolData.tokenDecimals[tokenOut] *
        (1 - (BalanceIn / (BalanceIn + this.poolData.tokenDecimals[tokenIn] * this.state.amountIn))
        ** (this.poolData.tokenShares[tokenIn] / this.poolData.tokenShares[tokenOut]))
    return Math.floor(amountOut * this.poolData.tokenDecimals[tokenOut] * coef) / this.poolData.tokenDecimals[tokenOut]
}