init.gno

  1package v1
  2
  3import (
  4	"gno.land/p/nt/avl"
  5	"gno.land/r/gnoswap/pool"
  6)
  7
  8const (
  9	// slot0FeeProtocol represents the protocol fee percentage (0-10).
 10	// This parameter can be modified through governance.
 11	defaultSlot0FeeProtocol = uint8(0)
 12
 13	// poolCreationFee is the fee that is charged when a user creates a pool.
 14	// The fee is denominated in GNS tokens.
 15	// This parameter can be modified through governance.
 16	defaultPoolCreationFee = int64(100_000_000) // 100_GNS
 17
 18	// withdrawalFeeBPS is the fee that is charged when a user withdraws their collected fees
 19	// The fee is denominated in BPS (Basis Points)
 20	// Example: 100 BPS = 1%
 21	// This parameter can be modified through governance.
 22	defaultWithdrawalFeeBPS = uint64(100)
 23)
 24
 25var defaultFeeAmountTickSpacing = map[uint32]int32{
 26	100:   1,
 27	500:   10,
 28	3000:  60,
 29	10000: 200,
 30}
 31
 32func init() {
 33	registerPoolV1()
 34}
 35
 36func registerPoolV1() {
 37	pool.RegisterInitializer(cross, func(poolStore pool.IPoolStore) pool.IPool {
 38		err := initStoreData(poolStore)
 39		if err != nil {
 40			panic(err)
 41		}
 42
 43		return NewPoolV1(poolStore)
 44	})
 45}
 46
 47func initStoreData(poolStore pool.IPoolStore) error {
 48	if !poolStore.HasPools() {
 49		err := poolStore.SetPools(avl.NewTree())
 50		if err != nil {
 51			return err
 52		}
 53	}
 54
 55	if !poolStore.HasFeeAmountTickSpacing() {
 56		err := poolStore.SetFeeAmountTickSpacing(defaultFeeAmountTickSpacing)
 57		if err != nil {
 58			return err
 59		}
 60	}
 61
 62	if !poolStore.HasPoolCreationFee() {
 63		err := poolStore.SetPoolCreationFee(defaultPoolCreationFee)
 64		if err != nil {
 65			return err
 66		}
 67	}
 68
 69	if !poolStore.HasSlot0FeeProtocol() {
 70		err := poolStore.SetSlot0FeeProtocol(defaultSlot0FeeProtocol)
 71		if err != nil {
 72			return err
 73		}
 74	}
 75
 76	if !poolStore.HasWithdrawalFeeBPS() {
 77		err := poolStore.SetWithdrawalFeeBPS(defaultWithdrawalFeeBPS)
 78		if err != nil {
 79			return err
 80		}
 81	}
 82
 83	// Initialize swap start hook with no-op function
 84	if !poolStore.HasSwapStartHook() {
 85		noopSwapStart := func(cur realm, poolPath string, timestamp int64) {}
 86		err := poolStore.SetSwapStartHook(noopSwapStart)
 87		if err != nil {
 88			return err
 89		}
 90	}
 91
 92	// Initialize swap end hook with no-op function
 93	if !poolStore.HasSwapEndHook() {
 94		noopSwapEnd := func(cur realm, poolPath string) error {
 95			return nil
 96		}
 97		err := poolStore.SetSwapEndHook(noopSwapEnd)
 98		if err != nil {
 99			return err
100		}
101	}
102
103	// Initialize tick cross hook with no-op function
104	if !poolStore.HasTickCrossHook() {
105		noopTickCross := func(cur realm, poolPath string, tickId int32, zeroForOne bool, timestamp int64) {}
106		err := poolStore.SetTickCrossHook(noopTickCross)
107		if err != nil {
108			return err
109		}
110	}
111
112	return nil
113}