init.gno

  1package v1
  2
  3import (
  4	"gno.land/r/gnoswap/pool"
  5)
  6
  7const (
  8	// slot0FeeProtocol represents the protocol fee percentage (0-10).
  9	// This parameter can be modified through governance.
 10	defaultSlot0FeeProtocol = uint8(0)
 11
 12	// poolCreationFee is the fee that is charged when a user creates a pool.
 13	// The fee is denominated in GNS tokens.
 14	// This parameter can be modified through governance.
 15	defaultPoolCreationFee = int64(100_000_000) // 100_GNS
 16
 17	// withdrawalFeeBPS is the fee that is charged when a user withdraws their collected fees
 18	// The fee is denominated in BPS (Basis Points)
 19	// Example: 100 BPS = 1%
 20	// This parameter can be modified through governance.
 21	defaultWithdrawalFeeBPS = uint64(100)
 22
 23	defaultUnlocked = true
 24)
 25
 26func init(cur realm) {
 27	registerPoolV1(cur)
 28}
 29
 30func registerPoolV1(cur realm) {
 31	pool.RegisterInitializer(cross(cur), func(_ int, rlm realm, poolStore pool.IPoolStore) pool.IPool {
 32		if !rlm.IsCurrent() {
 33			panic(errSpoofedRealm)
 34		}
 35
 36		err := initStoreData(0, rlm, poolStore)
 37		if err != nil {
 38			panic(err)
 39		}
 40
 41		return NewPoolV1(poolStore)
 42	})
 43}
 44
 45func initStoreData(_ int, rlm realm, poolStore pool.IPoolStore) error {
 46	if !poolStore.HasPools() {
 47		err := poolStore.SetPools(0, rlm, pool.NewPoolsTree())
 48		if err != nil {
 49			return err
 50		}
 51	}
 52
 53	if !poolStore.HasFeeAmountTickSpacing() {
 54		err := poolStore.SetFeeAmountTickSpacing(0, rlm, pool.NewDefaultFeeAmountTickSpacing())
 55		if err != nil {
 56			return err
 57		}
 58	}
 59
 60	if !poolStore.HasPoolCreationFee() {
 61		err := poolStore.SetPoolCreationFee(0, rlm, defaultPoolCreationFee)
 62		if err != nil {
 63			return err
 64		}
 65	}
 66
 67	if !poolStore.HasPendingProtocolFees() {
 68		err := poolStore.SetPendingProtocolFees(0, rlm, make(map[string]int64))
 69		if err != nil {
 70			return err
 71		}
 72	}
 73
 74	if !poolStore.HasSlot0FeeProtocol() {
 75		err := poolStore.SetSlot0FeeProtocol(0, rlm, defaultSlot0FeeProtocol)
 76		if err != nil {
 77			return err
 78		}
 79	}
 80
 81	if !poolStore.HasWithdrawalFeeBPS() {
 82		err := poolStore.SetWithdrawalFeeBPS(0, rlm, defaultWithdrawalFeeBPS)
 83		if err != nil {
 84			return err
 85		}
 86	}
 87
 88	if !poolStore.HasUnlocked() {
 89		err := poolStore.SetUnlocked(0, rlm, defaultUnlocked)
 90		if err != nil {
 91			return err
 92		}
 93	}
 94
 95	// Initialize swap start hook with no-op function
 96	if !poolStore.HasSwapStartHook() {
 97		noopSwapStart := func(cur realm, poolPath string, timestamp int64) {}
 98		err := poolStore.SetSwapStartHook(0, rlm, noopSwapStart)
 99		if err != nil {
100			return err
101		}
102	}
103
104	// Initialize swap end hook with no-op function
105	if !poolStore.HasSwapEndHook() {
106		noopSwapEnd := func(cur realm, poolPath string) error {
107			return nil
108		}
109		err := poolStore.SetSwapEndHook(0, rlm, noopSwapEnd)
110		if err != nil {
111			return err
112		}
113	}
114
115	// Initialize tick cross hook with no-op function
116	if !poolStore.HasTickCrossHook() {
117		noopTickCross := func(cur realm, poolPath string, tickId int32, zeroForOne bool, timestamp int64) {}
118		err := poolStore.SetTickCrossHook(0, rlm, noopTickCross)
119		if err != nil {
120			return err
121		}
122	}
123
124	return nil
125}