package bep3 import ( "fmt" sdk "github.com/cosmos/cosmos-sdk/types" authtypes "github.com/cosmos/cosmos-sdk/x/auth/types" "github.com/kava-labs/kava/x/bep3/keeper" "github.com/kava-labs/kava/x/bep3/types" ) // InitGenesis initializes the store state from a genesis state. func InitGenesis(ctx sdk.Context, keeper keeper.Keeper, accountKeeper types.AccountKeeper, gs *types.GenesisState) { // Check if the module account exists moduleAcc := accountKeeper.GetModuleAccount(ctx, types.ModuleName) if moduleAcc == nil { panic(fmt.Sprintf("%s module account has not been set", types.ModuleName)) } hasBurnPermissions := false hasMintPermissions := false for _, perm := range moduleAcc.GetPermissions() { if perm == authtypes.Burner { hasBurnPermissions = true } if perm == authtypes.Minter { hasMintPermissions = true } } if !hasBurnPermissions { panic(fmt.Sprintf("%s module account does not have burn permissions", types.ModuleName)) } if !hasMintPermissions { panic(fmt.Sprintf("%s module account does not have mint permissions", types.ModuleName)) } if err := gs.Validate(); err != nil { panic(fmt.Sprintf("failed to validate %s genesis state: %s", types.ModuleName, err)) } keeper.SetPreviousBlockTime(ctx, gs.PreviousBlockTime) keeper.SetParams(ctx, gs.Params) for _, supply := range gs.Supplies { keeper.SetAssetSupply(ctx, supply, supply.GetDenom()) } var incomingSupplies sdk.Coins var outgoingSupplies sdk.Coins for _, swap := range gs.AtomicSwaps { if swap.Validate() != nil { panic(fmt.Sprintf("invalid swap %s", swap.GetSwapID())) } // Atomic swap assets must be both supported and active err := keeper.ValidateLiveAsset(ctx, swap.Amount[0]) if err != nil { panic(fmt.Sprintf("swap has invalid asset: %s", err)) } keeper.SetAtomicSwap(ctx, swap) // Add swap to block index or longterm storage based on swap.Status // Increment incoming or outgoing supply based on swap.Direction switch swap.Direction { case types.SWAP_DIRECTION_INCOMING: switch swap.Status { case types.SWAP_STATUS_OPEN: // This index expires unclaimed swaps keeper.InsertIntoByBlockIndex(ctx, swap) incomingSupplies = incomingSupplies.Add(swap.Amount...) case types.SWAP_STATUS_EXPIRED: incomingSupplies = incomingSupplies.Add(swap.Amount...) case types.SWAP_STATUS_COMPLETED: // This index stores swaps until deletion keeper.InsertIntoLongtermStorage(ctx, swap) default: panic(fmt.Sprintf("swap %s has invalid status %s", swap.GetSwapID(), swap.Status.String())) } case types.SWAP_DIRECTION_OUTGOING: switch swap.Status { case types.SWAP_STATUS_OPEN: keeper.InsertIntoByBlockIndex(ctx, swap) outgoingSupplies = outgoingSupplies.Add(swap.Amount...) case types.SWAP_STATUS_EXPIRED: outgoingSupplies = outgoingSupplies.Add(swap.Amount...) case types.SWAP_STATUS_COMPLETED: keeper.InsertIntoLongtermStorage(ctx, swap) default: panic(fmt.Sprintf("swap %s has invalid status %s", swap.GetSwapID(), swap.Status.String())) } default: panic(fmt.Sprintf("swap %s has invalid direction %s", swap.GetSwapID(), swap.Direction.String())) } } // Asset's given incoming/outgoing supply much match the amount of coins in incoming/outgoing atomic swaps supplies := keeper.GetAllAssetSupplies(ctx) for _, supply := range supplies { incomingSupply := incomingSupplies.AmountOf(supply.GetDenom()) if !supply.IncomingSupply.Amount.Equal(incomingSupply) { panic(fmt.Sprintf("asset's incoming supply %s does not match amount %s in incoming atomic swaps", supply.IncomingSupply, incomingSupply)) } outgoingSupply := outgoingSupplies.AmountOf(supply.GetDenom()) if !supply.OutgoingSupply.Amount.Equal(outgoingSupply) { panic(fmt.Sprintf("asset's outgoing supply %s does not match amount %s in outgoing atomic swaps", supply.OutgoingSupply, outgoingSupply)) } limit, err := keeper.GetSupplyLimit(ctx, supply.GetDenom()) if err != nil { panic(fmt.Sprintf("asset's supply limit not found: %s", err)) } if supply.CurrentSupply.Amount.GT(limit.Limit) { panic(fmt.Sprintf("asset's current supply %s is over the supply limit %s", supply.CurrentSupply, limit.Limit)) } if supply.IncomingSupply.Amount.GT(limit.Limit) { panic(fmt.Sprintf("asset's incoming supply %s is over the supply limit %s", supply.IncomingSupply, limit.Limit)) } if supply.IncomingSupply.Amount.Add(supply.CurrentSupply.Amount).GT(limit.Limit) { panic(fmt.Sprintf("asset's incoming supply + current supply %s is over the supply limit %s", supply.IncomingSupply.Add(supply.CurrentSupply), limit.Limit)) } if supply.OutgoingSupply.Amount.GT(limit.Limit) { panic(fmt.Sprintf("asset's outgoing supply %s is over the supply limit %s", supply.OutgoingSupply, limit.Limit)) } } } // ExportGenesis writes the current store values to a genesis file, which can be imported again with InitGenesis func ExportGenesis(ctx sdk.Context, k keeper.Keeper) (data types.GenesisState) { params := k.GetParams(ctx) swaps := k.GetAllAtomicSwaps(ctx) supplies := k.GetAllAssetSupplies(ctx) previousBlockTime, found := k.GetPreviousBlockTime(ctx) if !found { previousBlockTime = types.DefaultPreviousBlockTime } return types.NewGenesisState(params, swaps, supplies, previousBlockTime) }