interfaces: refactor

interfaces/05-log-parser/oop/chartsummary.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"os"
+	"strconv"
+
+	c "github.com/wcharczuk/go-chart"
+)
+
+type chartSummary struct {
+	title         string
+	width, height int
+}
+
+func (s *chartSummary) summarize(results iterator) error {
+	w := os.Stdout
+
+	donut := c.DonutChart{
+		Title: s.title,
+		TitleStyle: c.Style{
+			FontSize:  35,
+			Show:      true,
+			FontColor: c.ColorAlternateGreen,
+		},
+		Width:  s.width,
+		Height: s.height,
+	}
+
+	results.each(func(r result) {
+		v := c.Value{
+			Label: r.domain + r.page + ": " + strconv.Itoa(r.visits),
+			Value: float64(r.visits),
+			Style: c.Style{
+				FontSize: 14,
+			},
+		}
+
+		donut.Values = append(donut.Values, v)
+	})
+
+	return donut.Render(c.SVG, w)
+}