44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
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package pip
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import (
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
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)
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type PipTransformer struct {
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fetcher IPipFetcher
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repository IPipRepository
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}
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func NewPipTransformer(chain core.BlockChain, db *postgres.DB) PipTransformer {
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fetcher := NewPipFetcher(chain)
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repository := NewPipRepository(db)
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return PipTransformer{
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fetcher: fetcher,
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repository: repository,
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}
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}
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func (transformer PipTransformer) Execute(header core.Header, headerID int64) error {
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value, err := transformer.fetcher.FetchPipValue(header)
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if err != nil {
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if err == price_feeds.ErrNoMatchingLog {
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return nil
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}
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return err
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}
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pip := getPip(value, header, headerID)
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return transformer.repository.CreatePip(pip)
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}
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func getPip(logValue string, header core.Header, headerID int64) price_feeds.PriceUpdate {
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valueInUSD := price_feeds.Convert("wad", logValue, 15)
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pep := price_feeds.PriceUpdate{
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BlockNumber: header.BlockNumber,
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HeaderID: headerID,
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UsdValue: valueInUSD,
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}
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return pep
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}
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