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Add speed and ETA tracking to progress
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "maps" | ||
| "time" | ||
| ) | ||
|
|
||
| type ProgressTracker struct { | ||
| windowSize time.Duration | ||
| data map[time.Time]int64 | ||
| Total int64 | ||
| } | ||
|
|
||
| func NewProgressTracker(windowSize time.Duration) *ProgressTracker { | ||
| return &ProgressTracker{ | ||
| windowSize: windowSize, | ||
| data: make(map[time.Time]int64), | ||
| } | ||
| } | ||
|
|
||
| func (pt *ProgressTracker) Add(value int64) { | ||
| pt.Total += value | ||
| pt.data[time.Now()] = value | ||
| pt.evict() | ||
| } | ||
|
|
||
| func (pt *ProgressTracker) Speed() float64 { | ||
| pt.evict() | ||
| var first, last time.Time | ||
| for t := range pt.data { | ||
| if first.IsZero() || t.Before(first) { | ||
| first = t | ||
| } | ||
| if last.IsZero() || t.After(last) { | ||
| last = t | ||
| } | ||
| } | ||
| firstData := pt.data[first] | ||
| lastData := pt.data[last] | ||
| return float64(lastData-firstData) / pt.windowSize.Seconds() | ||
| } | ||
|
|
||
| func (pt *ProgressTracker) ETA() time.Duration { | ||
| speed := pt.Speed() | ||
| if speed == 0 { | ||
| return 0 | ||
| } | ||
| var latest time.Time | ||
| for t := range pt.data { | ||
| if latest.IsZero() || t.After(latest) { | ||
| latest = t | ||
| } | ||
| } | ||
| latestData := pt.data[latest] | ||
| return time.Duration(float64(pt.Total-latestData)/speed) * time.Second | ||
| } | ||
|
|
||
| func (pt *ProgressTracker) evict() { | ||
| maps.DeleteFunc(pt.data, func(t time.Time, _ int64) bool { | ||
| return time.Since(t) > pt.windowSize | ||
| }) | ||
| } |
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