0g-chain/x/auction/keeper/querier.go
Denali Marsh e2f515ba9e
Querier improvements: CDP and Auction priority 1 queries (#644)
* query auction by lot owner

* add SavingsRateDistributed to store

* v2cdps: filtered cdps query

* update v2cdps cli examples

* add savings rate dist counter to begin blocker

* implement savings rate dist cli query

* implement cdp REST queries

* minor auction CLI/REST updates

* fix auction querier bug

* update REST endpoint to 'cdps'

* update to savings-rate-dist

* update SavingsRateDistributed get/set

* update tests

* fix savings rate dist rounding errors

* 'collateralDenom' -> 'collateralType'

* refactor 'v2cdps' -> 'cdps', add ratio param

* fix augmented CDP type, msg string() method

* fix cdp querier test

* filter query results efficiently

* querier tests

* limit type iteration if owner defined

* improve savings rate dist genesis validation

* default sdk.Dec{} to sdk.ZeroDec in queries

* update condition logic for finding intersection

* fix cdp querier filtering

* Update kava-4 swagger (#653)

* add collateral_type, update cdp params

* savings rate, auctions, get cdps

* drop owner from AuctionResponse

* remove duplicate collateral denom

* update query paths with {collateral-type}
2020-09-16 20:45:10 -04:00

152 lines
4.4 KiB
Go

package keeper
import (
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/kava-labs/kava/x/auction/types"
)
// NewQuerier is the module level router for state queries
func NewQuerier(keeper Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err error) {
switch path[0] {
case types.QueryGetAuction:
return queryAuction(ctx, req, keeper)
case types.QueryGetAuctions:
return queryAuctions(ctx, req, keeper)
case types.QueryGetParams:
return queryGetParams(ctx, req, keeper)
case types.QueryNextAuctionID:
return queryNextAuctionID(ctx, req, keeper)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint", types.ModuleName)
}
}
}
func queryAuction(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) {
// Decode request
var requestParams types.QueryAuctionParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, &requestParams)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
// Lookup auction
auction, found := keeper.GetAuction(ctx, requestParams.AuctionID)
if !found {
return nil, sdkerrors.Wrapf(types.ErrAuctionNotFound, "%d", requestParams.AuctionID)
}
// Encode results
bz, err := codec.MarshalJSONIndent(keeper.cdc, auction)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func queryAuctions(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) {
var params types.QueryAllAuctionParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
unfilteredAuctions := keeper.GetAllAuctions(ctx)
auctions := filterAuctions(ctx, unfilteredAuctions, params)
if auctions == nil {
auctions = types.Auctions{}
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, auctions)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
// query params in the auction store
func queryGetParams(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) {
// Get params
params := keeper.GetParams(ctx)
// Encode results
bz, err := codec.MarshalJSONIndent(keeper.cdc, params)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
// filterAuctions retrieves auctions filtered by a given set of params.
// If no filters are provided, all auctions will be returned in paginated form.
func filterAuctions(ctx sdk.Context, auctions types.Auctions, params types.QueryAllAuctionParams) types.Auctions {
filteredAuctions := make(types.Auctions, 0, len(auctions))
for _, auc := range auctions {
matchType, matchOwner, matchDenom, matchPhase := true, true, true, true
// match auction type (if supplied)
if len(params.Type) > 0 {
matchType = auc.GetType() == params.Type
}
// match auction owner (if supplied)
if len(params.Owner) > 0 {
if cAuc, ok := auc.(types.CollateralAuction); ok {
foundOwnerAddr := false
for _, addr := range cAuc.GetLotReturns().Addresses {
if addr.Equals(params.Owner) {
foundOwnerAddr = true
break
}
}
if !foundOwnerAddr {
matchOwner = false
}
}
}
// match auction denom (if supplied)
if len(params.Denom) > 0 {
matchDenom = auc.GetBid().Denom == params.Denom || auc.GetLot().Denom == params.Denom
}
// match auction phase (if supplied)
if len(params.Phase) > 0 {
matchPhase = auc.GetPhase() == params.Phase
}
if matchType && matchOwner && matchDenom && matchPhase {
filteredAuctions = append(filteredAuctions, auc)
}
}
start, end := client.Paginate(len(filteredAuctions), params.Page, params.Limit, 100)
if start < 0 || end < 0 {
filteredAuctions = types.Auctions{}
} else {
filteredAuctions = filteredAuctions[start:end]
}
return filteredAuctions
}
func queryNextAuctionID(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) {
nextAuctionID, _ := keeper.GetNextAuctionID(ctx)
bz, err := types.ModuleCdc.MarshalJSON(nextAuctionID)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
return bz, nil
}