0g-chain/x/cdp/keeper/params.go
Kevin Davis d849d690e5
R4R: CDP types and methods (#275)
* wip: tpyes and keeper methods

* wip: iterators

* wip: types and keeper methods

* wip: add msgs

* wip: client methods

* wip: rebase develop

* wip: types tests

* wip: keeper tests, small fixes

* wip: add cdp tests

* wip: deposit tests

* wip: keeper tests

* wip: tests and module methods

* feat: error when fetching expired price

* feat: conversion factor for external assets

* feat: debt floor for new cdps

* feat: save deposits on export genesis

* feat: ensure messages implement msg

* feat: index deposits by status

* fix: stray comment

* wip: address review comments

* address review comments
2020-01-12 16:35:34 +01:00

82 lines
2.0 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, denom string) (types.CollateralParam, bool) {
params := k.GetParams(ctx)
for _, cp := range params.CollateralParams {
if cp.Denom == denom {
return cp, true
}
}
return types.CollateralParam{}, false
}
// GetDebt returns the debt param with matching denom
func (k Keeper) GetDebt(ctx sdk.Context, denom string) (types.DebtParam, bool) {
params := k.GetParams(ctx)
for _, dp := range params.DebtParams {
if dp.Denom == denom {
return dp, true
}
}
return types.DebtParam{}, false
}
// GetDenomPrefix returns the prefix of the matching denom
func (k Keeper) GetDenomPrefix(ctx sdk.Context, denom string) (byte, bool) {
params := k.GetParams(ctx)
for _, cp := range params.CollateralParams {
if cp.Denom == denom {
return cp.Prefix, true
}
}
return 0x00, false
}
// private methods 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) getMarketID(ctx sdk.Context, denom string) string {
cp, found := k.GetCollateral(ctx, denom)
if !found {
panic(fmt.Sprintf("collateral not found: %s", denom))
}
return cp.MarketID
}
func (k Keeper) getLiquidationRatio(ctx sdk.Context, denom string) sdk.Dec {
cp, found := k.GetCollateral(ctx, denom)
if !found {
panic(fmt.Sprintf("collateral not found: %s", denom))
}
return cp.LiquidationRatio
}