Bootstrap reanimator chart viewer

web/embed.go

@@ -0,0 +1,57 @@
+package web
+
+import (
+	"embed"
+	"html/template"
+	"io/fs"
+	"net/http"
+	"strings"
+)
+
+//go:embed templates/* static/*
+var content embed.FS
+
+var pageTemplate = template.Must(template.New("view.html").Funcs(template.FuncMap{
+	"statusClass": statusClass,
+	"joinLines":   joinLines,
+}).ParseFS(content, "templates/view.html"))
+
+func Render(data any) ([]byte, error) {
+	var out strings.Builder
+	if err := pageTemplate.ExecuteTemplate(&out, "view.html", data); err != nil {
+		return nil, err
+	}
+	return []byte(out.String()), nil
+}
+
+func Static() http.Handler {
+	sub, err := fs.Sub(content, "static")
+	if err != nil {
+		panic(err)
+	}
+	return http.FileServer(http.FS(sub))
+}
+
+func statusClass(value string) string {
+	switch strings.ToUpper(strings.TrimSpace(value)) {
+	case "OK":
+		return "status-ok"
+	case "WARNING":
+		return "status-warning"
+	case "CRITICAL":
+		return "status-critical"
+	case "UNKNOWN":
+		return "status-unknown"
+	case "EMPTY":
+		return "status-empty"
+	default:
+		return ""
+	}
+}
+
+func joinLines(value string) []string {
+	if strings.TrimSpace(value) == "" {
+		return nil
+	}
+	return strings.Split(value, "\n")
+}