this sdk provide offline-interfaces to calculate exchange token amount on iZiSwap.
with providing distribution of liquidity and limit order and currentPoint of pool,
you can call following interfaces to compute exchange amount of tokenX and tokenY
// swap from tokenY to tokenX with input amount of tokenY
func SwapY2X(amount big.Int, highPt int, pool PoolInfo)
// swap from tokenY to tokenX with desired amount of tokenX
func SwapY2XDesireX(amount big.Int, highPt int, pool PoolInfo)
// swap from tokenX to tokenY with input amount of tokenX
func SwapX2Y(amount big.Int, lowPt int, pool PoolInfo)
// swap from tokenX to tokenY with desired amount of tokenY
func SwapX2YDesireY(amount big.Int, lowPt int, pool PoolInfo)
here when a pair is (tokenA, tokenB), if address(tokenA).LowerCase() < address(tokenB).LowerCase() then, tokenA is tokenX, tokenB is tokenY, otherwise, tokenB is tokenX, tokenA is tokenY.
for more detail of usage, you can refer to example.go.txt