1 files changed, 157 insertions, 0 deletions
diff --git a/human.go b/human.go
new file mode 100644
index 0000000..c6a2fbc
--- /dev/null
+++ b/human.go
@@ -0,0 +1,157 @@
+package virtbuf
+
+// mostly just functions related to making STDOUT
+// more readable by us humans
+
+// also function shortcuts the do limited formatting (haha, who remembers COBOL?)
+// so reporting tables of the status of what droplets and hypervisors
+// are in text columns and rows that can be easily read in a terminal
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+func oldGetDurationStamp(t time.Time) string {
+	// Get the current time
+	currentTime := time.Now()
+
+	// Calculate the duration between t current time
+	duration := currentTime.Sub(t)
+
+	return FormatDuration(duration)
+}
+
+// This isn't for the marketing department
+// so this isn't going to use 'MiB' and 'GiB'
+func HumanFormatBytes(b int64) string {
+	if b < 2000 {
+		return fmt.Sprintf("%d B", b)
+	}
+
+	kb := int(b / 1024)
+	if kb < 2000 {
+		return fmt.Sprintf("%d KB", kb)
+	}
+
+	mb := int(b / (1024 * 1024))
+	if mb < 2000 {
+		return fmt.Sprintf("%d MB", mb)
+	}
+
+	gb := int(b / (1024 * 1024 * 1024))
+	if gb < 2000 {
+		return fmt.Sprintf("%d GB", gb)
+	}
+
+	tb := int(b / (1024 * 1024 * 1024 * 1024))
+	return fmt.Sprintf("%d TB", tb)
+}
+
+func FormatDuration(d time.Duration) string {
+	result := ""
+
+	// check if it's more than a year
+	years := int(d.Hours()) / (24 * 365)
+	if years > 0 {
+		result += fmt.Sprintf("%dy", years)
+		return result
+	}
+
+	// check if it's more than a day
+	days := int(d.Hours()) / 24
+	if days > 0 {
+		result += fmt.Sprintf("%dd", days)
+		return result
+	}
+
+	// check if it's more than an hour
+	hours := int(d.Hours()) % 24
+	if hours > 0 {
+		result += fmt.Sprintf("%dh", hours)
+		return result
+	}
+
+	// check if it's more than a minute
+	minutes := int(d.Minutes()) % 60
+	if minutes > 0 {
+		result += fmt.Sprintf("%dm", minutes)
+		return result
+	}
+
+	// check if it's more than a second
+	seconds := int(d.Seconds()) % 60
+	if seconds > 0 {
+		result += fmt.Sprintf("%ds", seconds)
+		return result
+	}
+
+	// report in milliseconds
+	ms := int(d.Milliseconds())
+	if ms > 100 {
+		// todo: print .3s, etc ?
+		return fmt.Sprintf("%1.2fs", seconds/1000)
+	}
+	if ms > 0 {
+		result += fmt.Sprintf("%dms", ms)
+	}
+
+	// totally not necessary but wth
+	var t time.Duration
+	t = time.Duration(ms) * time.Millisecond
+	nanos := d - t
+	result += fmt.Sprintf("%dnanos", nanos)
+	return result
+}
+
+
+func (d *Droplet) SprintHeader() string {
+	header := fmt.Sprintf("%-3.3s %-9.9s %-20.20s", d.Current.State, d.Current.Hypervisor, d.Hostname)
+
+	if d.Current == nil {
+		d.Current = new(Current)
+	}
+
+	switch d.Current.State {
+	case DropletState_ON:
+		dur := time.Since(d.Current.OnSince.AsTime()) // time since 'ON'
+		header += " (on :" + FormatDuration(dur) + ")"
+	case DropletState_OFF:
+		// everything is as it should be with this vm
+		dur := time.Since(d.Current.OffSince.AsTime()) // time since 'OFF'
+		header += " (off:" + FormatDuration(dur) + ")"
+	default:
+		dur := time.Since(d.Current.OffSince.AsTime()) // use 'OFF' here?
+		header += " (???:" + FormatDuration(dur) + ")"
+	}
+	return header
+}
+
+func (d *Droplet) SprintDumpHeader() string {
+	var macs []string
+	for _, n := range d.Networks {
+		macs = append(macs, n.Mac)
+	}
+
+	// this line in golang could replace 80 lines of COBOL
+	header := fmt.Sprintf("%-4.4s%20s %-8s", d.Current.State, strings.Join(macs, " "), d.Current.Hypervisor)
+
+	if d.Current == nil {
+		d.Current = new(Current)
+	}
+
+	switch d.Current.State {
+	case DropletState_ON:
+		dur := time.Since(d.Current.OnSince.AsTime()) // time since 'ON'
+		header += " (on :" + FormatDuration(dur) + ")"
+	case DropletState_OFF:
+		// everything is as it should be with this vm
+		dur := time.Since(d.Current.OffSince.AsTime()) // time since 'OFF'
+		header += " (off:" + FormatDuration(dur) + ")"
+	default:
+		dur := time.Since(d.Current.OffSince.AsTime()) // use 'OFF' here?
+		header += " (???:" + FormatDuration(dur) + ")"
+	}
+	return header
+}