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https://github.com/status-im/status-go.git
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1bb9cbc573
Following the approach we did for keeping requests at the same location, these changes introduce new location for responses. `SuggestedRoutesResponse` is moved there and renamed to `RouterSuggestedRoutes` and code is updated accordingly. New type `Route` defined (since a single route is composed of zero or more paths). Types `Route`, `Path`, `Graph` and `Node` belong to a new `routs` package now.
68 lines
2.2 KiB
Go
68 lines
2.2 KiB
Go
package routes
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import (
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"math"
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"math/big"
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"github.com/status-im/status-go/services/wallet/common"
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"github.com/status-im/status-go/services/wallet/router/pathprocessor"
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)
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type Route []*Path
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func FindBestRoute(routes []Route, tokenPrice float64, nativeTokenPrice float64) Route {
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var best Route
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bestCost := big.NewFloat(math.Inf(1))
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for _, route := range routes {
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currentCost := big.NewFloat(0)
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for _, path := range route {
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tokenDenominator := big.NewFloat(math.Pow(10, float64(path.FromToken.Decimals)))
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// calculate the cost of the path
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nativeTokenPrice := new(big.Float).SetFloat64(nativeTokenPrice)
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// tx fee
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txFeeInEth := common.GweiToEth(common.WeiToGwei(path.TxFee.ToInt()))
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pathCost := new(big.Float).Mul(txFeeInEth, nativeTokenPrice)
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if path.TxL1Fee.ToInt().Cmp(pathprocessor.ZeroBigIntValue) > 0 {
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txL1FeeInEth := common.GweiToEth(common.WeiToGwei(path.TxL1Fee.ToInt()))
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pathCost.Add(pathCost, new(big.Float).Mul(txL1FeeInEth, nativeTokenPrice))
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}
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if path.TxBonderFees != nil && path.TxBonderFees.ToInt().Cmp(pathprocessor.ZeroBigIntValue) > 0 {
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pathCost.Add(pathCost, new(big.Float).Mul(
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new(big.Float).Quo(new(big.Float).SetInt(path.TxBonderFees.ToInt()), tokenDenominator),
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new(big.Float).SetFloat64(tokenPrice)))
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}
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if path.TxTokenFees != nil && path.TxTokenFees.ToInt().Cmp(pathprocessor.ZeroBigIntValue) > 0 && path.FromToken != nil {
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pathCost.Add(pathCost, new(big.Float).Mul(
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new(big.Float).Quo(new(big.Float).SetInt(path.TxTokenFees.ToInt()), tokenDenominator),
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new(big.Float).SetFloat64(tokenPrice)))
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}
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if path.ApprovalRequired {
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// tx approval fee
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approvalFeeInEth := common.GweiToEth(common.WeiToGwei(path.ApprovalFee.ToInt()))
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pathCost.Add(pathCost, new(big.Float).Mul(approvalFeeInEth, nativeTokenPrice))
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if path.ApprovalL1Fee.ToInt().Cmp(pathprocessor.ZeroBigIntValue) > 0 {
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approvalL1FeeInEth := common.GweiToEth(common.WeiToGwei(path.ApprovalL1Fee.ToInt()))
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pathCost.Add(pathCost, new(big.Float).Mul(approvalL1FeeInEth, nativeTokenPrice))
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}
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}
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currentCost = new(big.Float).Add(currentCost, pathCost)
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}
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if currentCost.Cmp(bestCost) == -1 {
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best = route
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bestCost = currentCost
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}
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}
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return best
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}
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