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amminterface.go
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/
amminterface.go
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package twapmock
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/osmosis-labs/osmosis/v17/x/twap/types"
)
var _ types.PoolManagerInterface = &ProgrammedPoolManagerInterface{}
type ProgrammedPoolManagerInterface struct {
underlyingKeeper types.PoolManagerInterface
programmedSpotPrice map[SpotPriceInput]SpotPriceResult
programmedPoolDenoms map[uint64]poolDenomsResult
}
// TODO, generalize to do a sum type on denoms
type SpotPriceInput struct {
poolId uint64
baseDenom string
quoteDenom string
}
type SpotPriceResult struct {
Sp sdk.Dec
Err error
}
type poolDenomsResult struct {
poolDenoms map[string]struct{}
err error
}
func NewProgrammedAmmInterface(underlyingKeeper types.PoolManagerInterface) *ProgrammedPoolManagerInterface {
return &ProgrammedPoolManagerInterface{
underlyingKeeper: underlyingKeeper,
programmedSpotPrice: map[SpotPriceInput]SpotPriceResult{},
programmedPoolDenoms: map[uint64]poolDenomsResult{},
}
}
func (p *ProgrammedPoolManagerInterface) ProgramPoolDenomsOverride(poolId uint64, overrideDenoms []string, overrideErr error) {
var poolDenoms map[string]struct{}
if existingForPool, ok := p.programmedPoolDenoms[poolId]; ok {
poolDenoms = existingForPool.poolDenoms
} else {
poolDenoms = map[string]struct{}{}
}
for _, denom := range overrideDenoms {
poolDenoms[denom] = struct{}{}
}
p.programmedPoolDenoms[poolId] = poolDenomsResult{poolDenoms, overrideErr}
}
func (p *ProgrammedPoolManagerInterface) ProgramPoolSpotPriceOverride(poolId uint64,
quoteDenom, baseDenom string, overrideSp sdk.Dec, overrideErr error,
) {
input := SpotPriceInput{poolId, baseDenom, quoteDenom}
p.programmedSpotPrice[input] = SpotPriceResult{overrideSp, overrideErr}
}
func (p *ProgrammedPoolManagerInterface) RouteGetPoolDenoms(ctx sdk.Context, poolId uint64) (denoms []string, err error) {
if res, ok := p.programmedPoolDenoms[poolId]; ok {
result := make([]string, 0, len(res.poolDenoms))
for denom := range res.poolDenoms {
result = append(result, denom)
}
return result, res.err
}
return p.underlyingKeeper.RouteGetPoolDenoms(ctx, poolId)
}
func (p *ProgrammedPoolManagerInterface) RouteCalculateSpotPrice(ctx sdk.Context,
poolId uint64,
quoteDenom,
baseDenom string,
) (price sdk.Dec, err error) {
input := SpotPriceInput{poolId, baseDenom, quoteDenom}
if res, ok := p.programmedSpotPrice[input]; ok {
return res.Sp, res.Err
}
return p.underlyingKeeper.RouteCalculateSpotPrice(ctx, poolId, quoteDenom, baseDenom)
}