diff --git a/decor/counters.go b/decor/counters.go index 010ec37..4a5343d 100644 --- a/decor/counters.go +++ b/decor/counters.go @@ -2,6 +2,7 @@ import ( "fmt" + "strings" ) const ( @@ -31,7 +32,7 @@ // // `unit` one of [0|UnitKiB|UnitKB] zero for no unit // -// `pairFmt` printf compatible verbs for current and total, like "%f" or "%d" +// `pairFmt` printf compatible verbs for current and total pair // // `wcc` optional WC config // @@ -43,25 +44,200 @@ // pairFmt="% d / % d" output: "1 MB / 12 MB" // func Counters(unit int, pairFmt string, wcc ...WC) Decorator { - return Any(chooseSizeProducer(unit, pairFmt), wcc...) -} - -func chooseSizeProducer(unit int, format string) DecorFunc { - if format == "" { - format = "%d / %d" - } - switch unit { - case UnitKiB: - return func(s Statistics) string { - return fmt.Sprintf(format, SizeB1024(s.Current), SizeB1024(s.Total)) - } - case UnitKB: - return func(s Statistics) string { - return fmt.Sprintf(format, SizeB1000(s.Current), SizeB1000(s.Total)) - } - default: - return func(s Statistics) string { - return fmt.Sprintf(format, s.Current, s.Total) - } - } -} + producer := func(unit int, pairFmt string) DecorFunc { + if pairFmt == "" { + pairFmt = "%d / %d" + } else if strings.Count(pairFmt, "%") != 2 { + panic("expected pairFmt with exactly 2 verbs") + } + switch unit { + case UnitKiB: + return func(s Statistics) string { + return fmt.Sprintf(pairFmt, SizeB1024(s.Current), SizeB1024(s.Total)) + } + case UnitKB: + return func(s Statistics) string { + return fmt.Sprintf(pairFmt, SizeB1000(s.Current), SizeB1000(s.Total)) + } + default: + return func(s Statistics) string { + return fmt.Sprintf(pairFmt, s.Current, s.Total) + } + } + } + return Any(producer(unit, pairFmt), wcc...) +} + +// TotalNoUnit is a wrapper around Total with no unit param. +func TotalNoUnit(format string, wcc ...WC) Decorator { + return Total(0, format, wcc...) +} + +// TotalKibiByte is a wrapper around Total with predefined unit +// UnitKiB (bytes/1024). +func TotalKibiByte(format string, wcc ...WC) Decorator { + return Total(UnitKiB, format, wcc...) +} + +// TotalKiloByte is a wrapper around Total with predefined unit +// UnitKB (bytes/1000). +func TotalKiloByte(format string, wcc ...WC) Decorator { + return Total(UnitKB, format, wcc...) +} + +// Total decorator with dynamic unit measure adjustment. +// +// `unit` one of [0|UnitKiB|UnitKB] zero for no unit +// +// `format` printf compatible verb for Total +// +// `wcc` optional WC config +// +// format example if unit=UnitKiB: +// +// format="%.1f" output: "12.0MiB" +// format="% .1f" output: "12.0 MiB" +// format="%d" output: "12MiB" +// format="% d" output: "12 MiB" +// +func Total(unit int, format string, wcc ...WC) Decorator { + producer := func(unit int, format string) DecorFunc { + if format == "" { + format = "%d" + } else if strings.Count(format, "%") != 1 { + panic("expected format with exactly 1 verb") + } + + switch unit { + case UnitKiB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1024(s.Total)) + } + case UnitKB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1000(s.Total)) + } + default: + return func(s Statistics) string { + return fmt.Sprintf(format, s.Total) + } + } + } + return Any(producer(unit, format), wcc...) +} + +// CurrentNoUnit is a wrapper around Current with no unit param. +func CurrentNoUnit(format string, wcc ...WC) Decorator { + return Current(0, format, wcc...) +} + +// CurrentKibiByte is a wrapper around Current with predefined unit +// UnitKiB (bytes/1024). +func CurrentKibiByte(format string, wcc ...WC) Decorator { + return Current(UnitKiB, format, wcc...) +} + +// CurrentKiloByte is a wrapper around Current with predefined unit +// UnitKB (bytes/1000). +func CurrentKiloByte(format string, wcc ...WC) Decorator { + return Current(UnitKB, format, wcc...) +} + +// Current decorator with dynamic unit measure adjustment. +// +// `unit` one of [0|UnitKiB|UnitKB] zero for no unit +// +// `format` printf compatible verb for Current +// +// `wcc` optional WC config +// +// format example if unit=UnitKiB: +// +// format="%.1f" output: "12.0MiB" +// format="% .1f" output: "12.0 MiB" +// format="%d" output: "12MiB" +// format="% d" output: "12 MiB" +// +func Current(unit int, format string, wcc ...WC) Decorator { + producer := func(unit int, format string) DecorFunc { + if format == "" { + format = "%d" + } else if strings.Count(format, "%") != 1 { + panic("expected format with exactly 1 verb") + } + + switch unit { + case UnitKiB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1024(s.Current)) + } + case UnitKB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1000(s.Current)) + } + default: + return func(s Statistics) string { + return fmt.Sprintf(format, s.Current) + } + } + } + return Any(producer(unit, format), wcc...) +} + +// InvertedCurrentNoUnit is a wrapper around InvertedCurrent with no unit param. +func InvertedCurrentNoUnit(format string, wcc ...WC) Decorator { + return InvertedCurrent(0, format, wcc...) +} + +// InvertedCurrentKibiByte is a wrapper around InvertedCurrent with predefined unit +// UnitKiB (bytes/1024). +func InvertedCurrentKibiByte(format string, wcc ...WC) Decorator { + return InvertedCurrent(UnitKiB, format, wcc...) +} + +// InvertedCurrentKiloByte is a wrapper around InvertedCurrent with predefined unit +// UnitKB (bytes/1000). +func InvertedCurrentKiloByte(format string, wcc ...WC) Decorator { + return InvertedCurrent(UnitKB, format, wcc...) +} + +// InvertedCurrent decorator with dynamic unit measure adjustment. +// +// `unit` one of [0|UnitKiB|UnitKB] zero for no unit +// +// `format` printf compatible verb for InvertedCurrent +// +// `wcc` optional WC config +// +// format example if unit=UnitKiB: +// +// format="%.1f" output: "12.0MiB" +// format="% .1f" output: "12.0 MiB" +// format="%d" output: "12MiB" +// format="% d" output: "12 MiB" +// +func InvertedCurrent(unit int, format string, wcc ...WC) Decorator { + producer := func(unit int, format string) DecorFunc { + if format == "" { + format = "%d" + } else if strings.Count(format, "%") != 1 { + panic("expected format with exactly 1 verb") + } + + switch unit { + case UnitKiB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1024(s.Total-s.Current)) + } + case UnitKB: + return func(s Statistics) string { + return fmt.Sprintf(format, SizeB1000(s.Total-s.Current)) + } + default: + return func(s Statistics) string { + return fmt.Sprintf(format, s.Total-s.Current) + } + } + } + return Any(producer(unit, format), wcc...) +}