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historical_states.go
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historical_states.go
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package services
import (
"fmt"
"github.com/everstake/cosmoscan-api/dao/filters"
"github.com/everstake/cosmoscan-api/dmodels"
"github.com/everstake/cosmoscan-api/log"
"github.com/everstake/cosmoscan-api/services/node"
"github.com/everstake/cosmoscan-api/smodels"
"github.com/shopspring/decimal"
"sort"
"time"
)
func (s ServiceFacade) KeepHistoricalState() {
for {
states, err := s.dao.GetHistoricalStates(filters.HistoricalState{Limit: 1})
if err != nil {
log.Error("KeepHistoricalState: dao.GetHistoricalStates: %s", err.Error())
<-time.After(time.Second * 10)
continue
}
tn := time.Now()
if len(states) != 0 {
lastState := states[0]
if tn.Sub(lastState.CreatedAt.Time) < time.Hour {
point := lastState.CreatedAt.Time.Add(time.Hour)
<-time.After(point.Sub(tn))
}
}
state, err := s.makeState()
if err != nil {
log.Error("KeepHistoricalState: makeState: %s", err.Error())
<-time.After(time.Minute * 10)
continue
}
for {
if err = s.dao.CreateHistoricalStates([]dmodels.HistoricalState{state}); err == nil {
break
}
log.Error("KeepHistoricalState: dao.CreateHistoricalStates: %s", err.Error())
<-time.After(time.Second * 10)
}
<-time.After(time.Minute)
}
}
func (s ServiceFacade) Test() (state dmodels.HistoricalState, err error) {
return s.makeState()
}
func (s ServiceFacade) makeState() (state dmodels.HistoricalState, err error) {
state.InflationRate, err = s.node.GetInflation()
if err != nil {
return state, fmt.Errorf("node.GetInflation: %s", err.Error())
}
state.InflationRate = state.InflationRate.Truncate(2)
state.CommunityPool, err = s.node.GetCommunityPoolAmount()
if err != nil {
return state, fmt.Errorf("node.GetCommunityPoolAmount: %s", err.Error())
}
state.CommunityPool = state.CommunityPool.Truncate(2)
totalSupply, err := s.node.GetTotalSupply()
if err != nil {
return state, fmt.Errorf("node.GetTotalSupply: %s", err.Error())
}
stakingPool, err := s.node.GetStakingPool()
if err != nil {
return state, fmt.Errorf("node.GetStakingPool: %s", err.Error())
}
if !totalSupply.IsZero() {
state.StakedRatio = stakingPool.Pool.BondedTokens.Div(totalSupply).Mul(decimal.New(100, 0)).Truncate(2)
}
validators, err := s.node.GetValidators()
if err != nil {
return state, fmt.Errorf("node.GetValidators: %s", err.Error())
}
sort.Slice(validators, func(i, j int) bool {
return validators[i].DelegatorShares.GreaterThan(validators[j].DelegatorShares)
})
if len(validators) >= 20 {
top20Stake := decimal.Zero
for i := 0; i < 20; i++ {
top20Stake = top20Stake.Add(validators[i].DelegatorShares)
}
top20Stake = top20Stake.Div(node.PrecisionDiv)
if !stakingPool.Pool.BondedTokens.IsZero() {
state.Top20Weight = top20Stake.Div(stakingPool.Pool.BondedTokens).Mul(decimal.New(100, 0)).Truncate(2)
}
}
state.CirculatingSupply = totalSupply.Truncate(2)
state.Price, state.TradingVolume, err = s.cm.GetMarketData()
if err != nil {
return state, fmt.Errorf("cm.GetMarketData: %s", err.Error())
}
state.MarketCap = state.CirculatingSupply.Mul(state.Price).Truncate(2)
if state.Price.IsZero() {
return state, fmt.Errorf("cmc not found currency")
}
state.CreatedAt = dmodels.NewTime(time.Now())
return state, nil
}
func (s *ServiceFacade) GetHistoricalState() (state smodels.HistoricalState, err error) {
models, err := s.dao.GetHistoricalStates(filters.HistoricalState{Limit: 1})
if err != nil {
return state, fmt.Errorf("dao.GetHistoricalStates: %s", err.Error())
}
if len(models) == 0 {
return state, fmt.Errorf("not found any states")
}
state.Current = models[0]
state.PriceAgg, err = s.dao.GetAggHistoricalStatesByField(filters.Agg{
By: filters.AggByHour,
From: dmodels.NewTime(time.Now().Add(-time.Hour * 24)),
}, "his_price")
if err != nil {
return state, fmt.Errorf("dao.GetAggHistoricalStatesByField: %s", err.Error())
}
state.MarketCapAgg, err = s.dao.GetAggHistoricalStatesByField(filters.Agg{
By: filters.AggByHour,
From: dmodels.NewTime(time.Now().Add(-time.Hour * 24)),
}, "his_market_cap")
if err != nil {
return state, fmt.Errorf("dao.GetAggHistoricalStatesByField: %s", err.Error())
}
state.StakedRatioAgg, err = s.dao.GetAggHistoricalStatesByField(filters.Agg{
By: filters.AggByDay,
From: dmodels.NewTime(time.Now().Add(-time.Hour * 24 * 30)),
}, "his_staked_ratio")
if err != nil {
return state, fmt.Errorf("dao.GetAggHistoricalStatesByField: %s", err.Error())
}
return state, nil
}