0g-chain/x/pricefeed/genesis.go
2019-12-06 23:53:20 +00:00

49 lines
1.2 KiB
Go

package pricefeed
import (
sdk "github.com/cosmos/cosmos-sdk/types"
)
// InitGenesis sets distribution information for genesis.
func InitGenesis(ctx sdk.Context, keeper Keeper, data GenesisState) {
// Set the assets and oracles from params
keeper.SetParams(ctx, data.Params)
// Iterate through the posted prices and set them in the store
for _, pp := range data.PostedPrices {
_, err := keeper.SetPrice(ctx, pp.OracleAddress, pp.MarketID, pp.Price, pp.Expiry)
if err != nil {
panic(err)
}
}
// Set the current price (if any) based on what's now in the store
for _, a := range data.Params.Markets {
if a.Active {
err := keeper.SetCurrentPrices(ctx, a.MarketID)
if err != nil {
panic(err)
}
}
}
}
// ExportGenesis returns a GenesisState for a given context and keeper.
func ExportGenesis(ctx sdk.Context, keeper Keeper) GenesisState {
// Get the params for assets and oracles
params := keeper.GetParams(ctx)
var postedPrices []PostedPrice
for _, asset := range keeper.GetMarketParams(ctx) {
pp := keeper.GetRawPrices(ctx, asset.MarketID)
postedPrices = append(postedPrices, pp...)
}
return GenesisState{
Params: params,
PostedPrices: postedPrices,
}
}