ui: embed reanimator chart viewer

internal/server/handlers.go

@@ -23,6 +23,7 @@ import (
 	"git.mchus.pro/mchus/logpile/internal/exporter"
 	"git.mchus.pro/mchus/logpile/internal/models"
 	"git.mchus.pro/mchus/logpile/internal/parser"
+	chartviewer "reanimator/chart/viewer"
 )
 
 func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
@@ -47,6 +48,82 @@ func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
 	tmpl.Execute(w, nil)
 }
 
+func (s *Server) handleChartCurrent(w http.ResponseWriter, r *http.Request) {
+	result := s.GetResult()
+	title := chartTitle(result)
+	if result == nil || result.Hardware == nil {
+		html, err := chartviewer.RenderHTML(nil, title)
+		if err != nil {
+			http.Error(w, "failed to render viewer", http.StatusInternalServerError)
+			return
+		}
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		_, _ = w.Write(rewriteChartStaticPaths(html))
+		return
+	}
+
+	snapshotBytes, err := currentReanimatorSnapshotBytes(result)
+	if err != nil {
+		http.Error(w, "failed to build reanimator snapshot: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	html, err := chartviewer.RenderHTML(snapshotBytes, title)
+	if err != nil {
+		http.Error(w, "failed to render chart: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	_, _ = w.Write(rewriteChartStaticPaths(html))
+}
+
+func currentReanimatorSnapshotBytes(result *models.AnalysisResult) ([]byte, error) {
+	reanimatorData, err := exporter.ConvertToReanimator(result)
+	if err != nil {
+		return nil, err
+	}
+
+	var buf bytes.Buffer
+	encoder := json.NewEncoder(&buf)
+	encoder.SetIndent("", "  ")
+	if err := encoder.Encode(reanimatorData); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func chartTitle(result *models.AnalysisResult) string {
+	const fallback = "LOGPile Reanimator Viewer"
+	if result == nil {
+		return fallback
+	}
+	if result.Hardware != nil {
+		board := result.Hardware.BoardInfo
+		product := strings.TrimSpace(board.ProductName)
+		serial := strings.TrimSpace(board.SerialNumber)
+		switch {
+		case product != "" && serial != "":
+			return product + " - " + serial
+		case product != "":
+			return product
+		case serial != "":
+			return serial
+		}
+	}
+	if host := strings.TrimSpace(result.TargetHost); host != "" {
+		return host
+	}
+	if filename := strings.TrimSpace(result.Filename); filename != "" {
+		return filename
+	}
+	return fallback
+}
+
+func rewriteChartStaticPaths(html []byte) []byte {
+	return bytes.ReplaceAll(html, []byte(`href="/static/view.css"`), []byte(`href="/chart/static/view.css"`))
+}
+
 func (s *Server) handleUpload(w http.ResponseWriter, r *http.Request) {
 	r.Body = http.MaxBytesReader(w, r.Body, uploadMultipartMaxBytes())
 	if err := r.ParseMultipartForm(uploadMultipartFormMemoryBytes()); err != nil {