0g-chain/x/auction/genesis.go

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package auction
import (
"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/auction/keeper"
"github.com/kava-labs/kava/x/auction/types"
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)
// InitGenesis initializes the store state from a genesis state.
func InitGenesis(ctx sdk.Context, keeper keeper.Keeper, bankKeeper types.BankKeeper, accountKeeper types.AccountKeeper, gs *types.GenesisState) {
if err := gs.Validate(); err != nil {
panic(fmt.Sprintf("failed to validate %s genesis state: %s", types.ModuleName, err))
}
keeper.SetNextAuctionID(ctx, gs.NextAuctionId)
keeper.SetParams(ctx, gs.Params)
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totalAuctionCoins := sdk.NewCoins()
auctions, err := types.UnpackGenesisAuctions(gs.Auctions)
if err != nil {
panic(fmt.Sprintf("failed to unpack genesis auctions: %s", err))
}
for _, a := range auctions {
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keeper.SetAuction(ctx, a)
// find the total coins that should be present in the module account
totalAuctionCoins = totalAuctionCoins.Add(a.GetModuleAccountCoins()...)
}
// 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))
}
maccCoins := bankKeeper.GetAllBalances(ctx, moduleAcc.GetAddress())
// check module coins match auction coins
// Note: Other sdk modules do not check this, instead just using the existing module account coins, or if zero, setting them.
if !maccCoins.IsEqual(totalAuctionCoins) {
panic(fmt.Sprintf("total auction coins (%s) do not equal (%s) module account (%s) ", maccCoins, types.ModuleName, totalAuctionCoins))
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}
}
// ExportGenesis returns a GenesisState for a given context and keeper.
func ExportGenesis(ctx sdk.Context, keeper keeper.Keeper) *types.GenesisState {
nextAuctionID, err := keeper.GetNextAuctionID(ctx)
if err != nil {
panic(err)
}
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params := keeper.GetParams(ctx)
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genAuctions := []types.GenesisAuction{} // return empty list instead of nil if no auctions
keeper.IterateAuctions(ctx, func(a types.Auction) bool {
ga, ok := a.(types.GenesisAuction)
if !ok {
panic("could not convert stored auction to GenesisAuction type")
}
genAuctions = append(genAuctions, ga)
return false
})
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gs, err := types.NewGenesisState(nextAuctionID, params, genAuctions)
if err != nil {
panic(err)
}
return gs
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}