Add Clocks module

clocks/timezones.go

@@ -0,0 +1,21 @@
+package clocks
+
+import (
+	"time"
+)
+
+func Timezones(locations map[string]interface{}) map[string]time.Time {
+	times := make(map[string]time.Time)
+
+	for label, location := range locations {
+		tzloc, err := time.LoadLocation(location.(string))
+
+		if err != nil {
+			continue
+		}
+
+		times[label] = time.Now().In(tzloc)
+	}
+
+	return times
+}

clocks/widget.go

@@ -0,0 +1,79 @@
+package clocks
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/olebedev/config"
+	"github.com/senorprogrammer/wtf/wtf"
+)
+
+const TimeFormat = "15:04 MST"
+const DateFormat = "Jan 2"
+
+// Config is a pointer to the global config object
+var Config *config.Config
+
+type Widget struct {
+	wtf.TextWidget
+}
+
+func NewWidget() *Widget {
+	widget := Widget{
+		TextWidget: wtf.NewTextWidget(" 🕗 World Clocks ", "clocks"),
+	}
+
+	return &widget
+}
+
+/* -------------------- Exported Functions -------------------- */
+
+func (widget *Widget) Refresh() {
+	if widget.Disabled() {
+		return
+	}
+
+	widget.View.Clear()
+
+	fmt.Fprintf(widget.View, "\n%s", widget.locations())
+
+	widget.RefreshedAt = time.Now()
+}
+
+/* -------------------- Unexported Functions -------------------- */
+
+func (widget *Widget) locations() string {
+	timezones := Timezones(Config.UMap("wtf.mods.clocks.locations"))
+
+	if len(timezones) == 0 {
+		return ""
+	}
+
+	// All this is to display the time entries in alphabetical order
+	labels := []string{}
+	for label, _ := range timezones {
+		labels = append(labels, label)
+	}
+
+	sort.Strings(labels)
+
+	tzs := []string{}
+	for idx, label := range labels {
+		rowColor := Config.UString("wtf.mods.clocks.rowcolors.even", "lightblue")
+		if idx%2 == 0 {
+			rowColor = Config.UString("wtf.mods.clocks.rowcolors.odd", "white")
+		}
+
+		zoneStr := fmt.Sprintf(
+			" [%s]%-12s %-10s %7s[white]",
+			rowColor, label,
+			timezones[label].Format(TimeFormat),
+			timezones[label].Format(DateFormat),
+		)
+		tzs = append(tzs, zoneStr)
+	}
+
+	return strings.Join(tzs, "\n")
+}