0g-chain/x/cdp/keeper/params.go
Kevin Davis daa1b2bb83
Add collateral type to cdp (#629)
* add collateral type field to cdp and collateral  param

* fix upstream tests

* fix simulations

* fix validation logic

* update incentive to use collateral type instead of denom

* use collateral type instead of denom in cdp

* remove unused code

* address review comments
2020-08-21 15:42:46 -04:00

113 lines
3.2 KiB
Go

package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/cdp/types"
)
// GetParams returns the params from the store
func (k Keeper) GetParams(ctx sdk.Context) types.Params {
var p types.Params
k.paramSubspace.GetParamSet(ctx, &p)
return p
}
// SetParams sets params on the store
func (k Keeper) SetParams(ctx sdk.Context, params types.Params) {
k.paramSubspace.SetParamSet(ctx, &params)
}
// GetCollateral returns the collateral param with corresponding denom
func (k Keeper) GetCollateral(ctx sdk.Context, collateralType string) (types.CollateralParam, bool) {
params := k.GetParams(ctx)
for _, cp := range params.CollateralParams {
if cp.Type == collateralType {
return cp, true
}
}
return types.CollateralParam{}, false
}
// GetDebtParam returns the debt param with matching denom
func (k Keeper) GetDebtParam(ctx sdk.Context, denom string) (types.DebtParam, bool) {
dp := k.GetParams(ctx).DebtParam
if dp.Denom == denom {
return dp, true
}
return types.DebtParam{}, false
}
// GetCollateralTypePrefix returns the prefix of the matching denom
func (k Keeper) GetCollateralTypePrefix(ctx sdk.Context, collateralType string) (byte, bool) {
params := k.GetParams(ctx)
for _, cp := range params.CollateralParams {
if cp.Type == collateralType {
return cp.Prefix, true
}
}
return 0x00, false
}
// private methods assume collateral has been validated, panic if the input is invalid
func (k Keeper) getDenomFromByte(ctx sdk.Context, db byte) string {
params := k.GetParams(ctx)
for _, cp := range params.CollateralParams {
if cp.Prefix == db {
return cp.Denom
}
}
panic(fmt.Sprintf("no collateral denom with prefix %b", db))
}
func (k Keeper) getSpotMarketID(ctx sdk.Context, collateralType string) string {
cp, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("collateral not found: %s", collateralType))
}
return cp.SpotMarketID
}
func (k Keeper) getliquidationMarketID(ctx sdk.Context, collateralType string) string {
cp, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("collateral not found: %s", collateralType))
}
return cp.LiquidationMarketID
}
func (k Keeper) getLiquidationRatio(ctx sdk.Context, collateralType string) sdk.Dec {
cp, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("collateral not found: %s", collateralType))
}
return cp.LiquidationRatio
}
func (k Keeper) getLiquidationPenalty(ctx sdk.Context, collateralType string) sdk.Dec {
cp, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("collateral not found: %s", collateralType))
}
return cp.LiquidationPenalty
}
func (k Keeper) getAuctionSize(ctx sdk.Context, collateralType string) sdk.Int {
cp, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("collateral not found: %s", collateralType))
}
return cp.AuctionSize
}
// GetFeeRate returns the per second fee rate for the input denom
func (k Keeper) getFeeRate(ctx sdk.Context, collateralType string) (fee sdk.Dec) {
collalateralParam, found := k.GetCollateral(ctx, collateralType)
if !found {
panic(fmt.Sprintf("could not get fee rate for %s, collateral not found", collateralType))
}
return collalateralParam.StabilityFee
}