package history import ( "github.com/vulcanize/vulcanizedb/pkg/core" "io" "text/template" ) const WindowTemplate = `Validating Blocks |{{.LowerBound}}|-- Validation Window --|{{.UpperBound}}| ({{.UpperBound}}:HEAD) ` var ParsedWindowTemplate = *template.Must(template.New("window").Parse(WindowTemplate)) type ValidationWindow struct { LowerBound int64 UpperBound int64 } func (window ValidationWindow) Size() int { return int(window.UpperBound - window.LowerBound) } func MakeValidationWindow(blockchain core.Blockchain, windowSize int) ValidationWindow { upperBound := blockchain.LastBlock().Int64() lowerBound := upperBound - int64(windowSize) return ValidationWindow{lowerBound, upperBound} } func MakeRange(min, max int64) []int64 { a := make([]int64, max-min+1) for i := range a { a[i] = min + int64(i) } return a } func (window ValidationWindow) Log(out io.Writer) { ParsedWindowTemplate.Execute(out, window) }