feat: html template

report/template.go

@@ -0,0 +1,45 @@
+package report
+
+import (
+	"bytes"
+	_ "embed"
+	"fmt"
+	"html/template"
+	"time"
+)
+
+//go:embed template.html
+var htmlTemplate string
+
+//go:embed style.css
+var style template.CSS
+
+func (r Report) ToHTML() string {
+	tmpl := template.Must(
+		template.New("report").Funcs(template.FuncMap{
+			"md":       mdToHTML,
+			"oh":       offsetHTags,
+			"price":    applyRate,
+			"time":     fmtTime,
+			"duration": fmtDuration,
+		}).Parse(htmlTemplate))
+
+	r.Style = style
+
+	buf := new(bytes.Buffer)
+	tmpl.Execute(buf, r)
+	return buf.String()
+}
+
+func applyRate(dur time.Duration) string {
+	cost := dur.Hours() * 16
+	return fmt.Sprintf("%.2f", cost)
+}
+
+func fmtTime(t time.Time) string {
+	return t.Format("02.08.2006 15:04")
+}
+
+func fmtDuration(d time.Duration) string {
+	return fmt.Sprintf("%.2f h", d.Hours())
+}