c1e10f09fb
* Add method to convert values to ray or wad units * Convert data to ray or wad for cat_file_chop_lump * Use shared convert functions in price feed conversion * Pull common ray/wad values into vars * Fix after rebase with staging
81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
// Copyright 2018 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package shared
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import (
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"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
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"math/big"
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)
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var (
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rayBase = big.NewFloat(1e27)
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wadBase = big.NewFloat(1e18)
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rayPrecision = 27
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wadPrecision = 18
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ray = "ray"
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wad = "wad"
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)
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func BigIntToInt64(value *big.Int) int64 {
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if value == nil {
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return int64(0)
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} else {
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return value.Int64()
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}
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}
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func BigIntToString(value *big.Int) string {
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result := value.String()
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if result == "<nil>" {
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return ""
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} else {
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return result
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}
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}
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func GetDataBytesAtIndex(n int, logData []byte) []byte {
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switch {
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case n == -1:
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return logData[len(logData)-constants.DataItemLength:]
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case n == -2:
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return logData[len(logData)-(2*constants.DataItemLength) : len(logData)-constants.DataItemLength]
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case n == -3:
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return logData[len(logData)-(3*constants.DataItemLength) : len(logData)-(2*constants.DataItemLength)]
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}
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return []byte{}
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}
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func ConvertToRay(value string) string {
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return convert(ray, value, rayPrecision)
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}
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func ConvertToWad(value string) string {
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return convert(wad, value, wadPrecision)
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}
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func convert(conversion string, value string, precision int) string {
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result := big.NewFloat(0.0)
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bigFloat := big.NewFloat(0.0)
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bigFloat.SetString(value)
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switch conversion {
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case ray:
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result.Quo(bigFloat, rayBase)
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case wad:
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result.Quo(bigFloat, wadBase)
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}
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return result.Text('f', precision)
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}
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