Merge pull request #62 from Team-Kujira/fix-pancake

Fix pancake int overflow

go.mod

@@ -3,6 +3,7 @@ module price-feeder
 go 1.20
 
 require (
+	cosmossdk.io/math v1.1.2
 	github.com/BurntSushi/toml v1.2.1
 	github.com/Team-Kujira/core v0.9.1
 	github.com/armon/go-metrics v0.4.1
@@ -19,6 +20,7 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/rs/cors v1.8.3
 	github.com/rs/zerolog v1.30.0
+	github.com/shopspring/decimal v1.3.1
 	github.com/sirkon/goproxy v1.4.8
 	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.4
@@ -40,7 +42,6 @@ require (
 	cosmossdk.io/depinject v1.0.0-alpha.4 // indirect
 	cosmossdk.io/errors v1.0.0 // indirect
 	cosmossdk.io/log v1.2.1 // indirect
-	cosmossdk.io/math v1.1.2 // indirect
 	cosmossdk.io/simapp v0.0.0-20230224204036-a6adb0821462 // indirect
 	cosmossdk.io/tools/rosetta v0.2.1 // indirect
 	filippo.io/edwards25519 v1.0.0 // indirect

go.sum

@@ -1288,6 +1288,8 @@ github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAm
 github.com/shazow/go-diff v0.0.0-20160112020656-b6b7b6733b8c h1:W65qqJCIOVP4jpqPQ0YvHYKwcMEMVWIzWC5iNQQfBTU=
 github.com/shazow/go-diff v0.0.0-20160112020656-b6b7b6733b8c/go.mod h1:/PevMnwAxekIXwN8qQyfc5gl2NlkB3CQlkizAbOkeBs=
 github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/shopspring/decimal v1.3.1 h1:2Usl1nmF/WZucqkFZhnfFYxxxu8LG21F6nPQBE5gKV8=
+github.com/shopspring/decimal v1.3.1/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/shurcooL/go v0.0.0-20180423040247-9e1955d9fb6e/go.mod h1:TDJrrUr11Vxrven61rcy3hJMUqaf/CLWYhHNPmT14Lk=
 github.com/shurcooL/go-goon v0.0.0-20170922171312-37c2f522c041/go.mod h1:N5mDOmsrJOB+vfqUK+7DmDyjhSLIIBnXo9lvZJj3MWQ=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=

oracle/provider/pancakev3.go

@@ -11,6 +11,7 @@ import (
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/rs/zerolog"
+	"github.com/shopspring/decimal"
 )
 
 var (
@@ -240,8 +241,21 @@ func (p *PancakeProvider) query(
 	}
 
 	for _, pool := range response.Data.Pools {
-		price := strToDec(pool.SqrtPrice)
-		prices[pool.Id] = price.Power(2).Quo(sdk.NewDec(2).Power(192))
+		dec, err := decimal.NewFromString(pool.SqrtPrice)
+		if err != nil {
+			p.logger.Error().
+				Err(err).
+				Msg("failed parsing sqrt price")
+			return nil, nil, err
+		}
+
+		d2 := decimal.NewFromInt(2)
+		d192 := decimal.NewFromInt(192)
+
+		dec = dec.Pow(d2).Div(d2.Pow(d192))
+		price := strToDec(dec.String())
+
+		prices[pool.Id] = price
 	}
 
 	return prices, volumes, nil