перенес создание протокола в Go Excelize

server/go.mod

@@ -1,3 +1,17 @@
 module protoc-frontend-server
 
 go 1.25.5
+
+require (
+	github.com/go-chi/chi/v5 v5.2.5 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/richardlehane/mscfb v1.0.6 // indirect
+	github.com/richardlehane/msoleps v1.0.6 // indirect
+	github.com/tiendc/go-deepcopy v1.7.2 // indirect
+	github.com/xuri/efp v0.0.1 // indirect
+	github.com/xuri/excelize/v2 v2.10.1 // indirect
+	github.com/xuri/nfp v0.0.2-0.20250530014748-2ddeb826f9a9 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
+	golang.org/x/text v0.34.0 // indirect
+)

server/go.sum

@@ -0,0 +1,22 @@
+github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
+github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/richardlehane/mscfb v1.0.6 h1:eN3bvvZCp00bs7Zf52bxNwAx5lJDBK1tCuH19qq5aC8=
+github.com/richardlehane/mscfb v1.0.6/go.mod h1:pe0+IUIc0AHh0+teNzBlJCtSyZdFOGgV4ZK9bsoV+Jo=
+github.com/richardlehane/msoleps v1.0.6 h1:9BvkpjvD+iUBalUY4esMwv6uBkfOip/Lzvd93jvR9gg=
+github.com/richardlehane/msoleps v1.0.6/go.mod h1:BWev5JBpU9Ko2WAgmZEuiz4/u3ZYTKbjLycmwiWUfWg=
+github.com/tiendc/go-deepcopy v1.7.2 h1:Ut2yYR7W9tWjTQitganoIue4UGxZwCcJy3orjrrIj44=
+github.com/tiendc/go-deepcopy v1.7.2/go.mod h1:4bKjNC2r7boYOkD2IOuZpYjmlDdzjbpTRyCx+goBCJQ=
+github.com/xuri/efp v0.0.1 h1:fws5Rv3myXyYni8uwj2qKjVaRP30PdjeYe2Y6FDsCL8=
+github.com/xuri/efp v0.0.1/go.mod h1:ybY/Jr0T0GTCnYjKqmdwxyxn2BQf2RcQIIvex5QldPI=
+github.com/xuri/excelize/v2 v2.10.1 h1:V62UlqopMqha3kOpnlHy2CcRVw1V8E63jFoWUmMzxN0=
+github.com/xuri/excelize/v2 v2.10.1/go.mod h1:iG5tARpgaEeIhTqt3/fgXCGoBRt4hNXgCp3tfXKoOIc=
+github.com/xuri/nfp v0.0.2-0.20250530014748-2ddeb826f9a9 h1:+C0TIdyyYmzadGaL/HBLbf3WdLgC29pgyhTjAT/0nuE=
+github.com/xuri/nfp v0.0.2-0.20250530014748-2ddeb826f9a9/go.mod h1:WwHg+CVyzlv/TX9xqBFXEZAuxOPxn2k1GNHwG41IIUQ=
+golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
+golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
+golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
+golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
+golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
+golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=

server/main.go

@@ -11,6 +11,8 @@ import (
 	"net/url"
 	"os"
 	"strings"
+
+	"github.com/go-chi/chi/v5"
 )
 
 //go:embed dist/*
@@ -31,7 +33,6 @@ func main() {
 	originalDirector := proxy.Director
 	proxy.Director = func(r *http.Request) {
 		originalDirector(r)
-		// Rewrite /api/... -> /...
 		r.URL.Path = strings.TrimPrefix(r.URL.Path, "/api")
 		if r.URL.Path == "" {
 			r.URL.Path = "/"
@@ -46,31 +47,34 @@ func main() {
 	}
 	fileServer := http.FileServer(http.FS(distSub))
 
-	mux := http.NewServeMux()
+	r := chi.NewRouter()
 
-	// API proxy
-	mux.HandleFunc("/api/", func(w http.ResponseWriter, r *http.Request) {
+	// API routes
+	r.Route("/api", func(api chi.Router) {
+		// Protocol generation handled locally (xlsx fill via excelize)
+		api.Post("/protocols/", protocolHandler(*apiTarget))
+
+		// All other /api/* requests proxied to Python backend
+		api.HandleFunc("/*", func(w http.ResponseWriter, r *http.Request) {
 			proxy.ServeHTTP(w, r)
 		})
+	})
 
 	// SPA: serve static files, fallback to index.html
-	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+	r.Get("/*", func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Cache-Control", "no-store")
 
-		// Try to serve the file directly
 		path := strings.TrimPrefix(r.URL.Path, "/")
 		if path == "" {
 			path = "index.html"
 		}
 
-		// Check if file exists in embedded FS
 		if f, err := distSub.Open(path); err == nil {
 			f.Close()
 			fileServer.ServeHTTP(w, r)
 			return
 		}
 
-		// Fallback to index.html for SPA routing
 		indexFile, err := fs.ReadFile(distSub, "index.html")
 		if err != nil {
 			http.Error(w, "index.html not found", http.StatusInternalServerError)
@@ -84,7 +88,7 @@ func main() {
 	log.Printf("Serving on http://localhost%s", addr)
 	log.Printf("API proxy -> %s", *apiTarget)
 
-	if err := http.ListenAndServe(addr, mux); err != nil {
+	if err := http.ListenAndServe(addr, r); err != nil {
 		log.Fatal(err)
 		os.Exit(1)
 	}

server/protocol.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+	"github.com/google/uuid"
+	"github.com/xuri/excelize/v2"
+)
+
+type CreateProtocolRequest struct {
+	TemplateID   string         `json:"template_id"`
+	FileID       string         `json:"file_id"`
+	CellsToUpdate map[string]any `json:"cells_to_update"`
+	PrintArea    string         `json:"print_area"`
+}
+
+func protocolHandler(backendURL string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		// Parse request body
+		var req CreateProtocolRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		// Fetch file binary from Python backend
+		fileURL := fmt.Sprintf("%s/files/%s/content", backendURL, req.FileID)
+		resp, err := http.Get(fileURL)
+		if err != nil {
+			http.Error(w, "failed to fetch file: "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusOK {
+			http.Error(w, fmt.Sprintf("backend returned %d when fetching file", resp.StatusCode), http.StatusInternalServerError)
+			return
+		}
+
+		fileBytes, err := io.ReadAll(resp.Body)
+		if err != nil {
+			http.Error(w, "failed to read file content: "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		// Open xlsx with excelize
+		f, err := excelize.OpenReader(bytes.NewReader(fileBytes))
+		if err != nil {
+			http.Error(w, "failed to open xlsx: "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer f.Close()
+
+		// Get the first sheet
+		sheetName := f.GetSheetName(0)
+		if sheetName == "" {
+			http.Error(w, "no sheets found in xlsx", http.StatusInternalServerError)
+			return
+		}
+
+		// Fill cells
+		for cellAddr, value := range req.CellsToUpdate {
+			if err := setCellValue(f, sheetName, cellAddr, value); err != nil {
+				http.Error(w, fmt.Sprintf("failed to set cell %s: %v", cellAddr, err), http.StatusInternalServerError)
+				return
+			}
+		}
+
+		// Write result to buffer
+		var buf bytes.Buffer
+		if err := f.Write(&buf); err != nil {
+			http.Error(w, "failed to write xlsx: "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		protocolID := uuid.New().String()
+
+		w.Header().Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+		w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="protocol_%s.xlsx"`, protocolID))
+		w.Header().Set("Content-Length", strconv.Itoa(buf.Len()))
+		w.Write(buf.Bytes())
+	}
+}
+
+func setCellValue(f *excelize.File, sheet, cell string, value any) error {
+	switch v := value.(type) {
+	case float64:
+		// JSON numbers are float64; check if it's actually an integer
+		if v == float64(int64(v)) {
+			return f.SetCellInt(sheet, cell, int64(v))
+		}
+		return f.SetCellFloat(sheet, cell, v, -1, 64)
+	case string:
+		return f.SetCellStr(sheet, cell, v)
+	case bool:
+		return f.SetCellBool(sheet, cell, v)
+	case nil:
+		return f.SetCellStr(sheet, cell, "")
+	default:
+		return f.SetCellStr(sheet, cell, fmt.Sprintf("%v", v))
+	}
+}
+

tsconfig.json

@@ -14,16 +14,24 @@
     "outDir": "./dist/",
     "baseUrl": ".",
     "paths": {
-      "@/*": ["./src/*"],
-      "shared/*": ["./shared/*"]
+      "@/*": [
+        "./src/*"
+      ],
+      "shared/*": [
+        "./shared/*"
+      ]
     },
     "skipLibCheck": true
   },
-
   "ts-node": {
     "compilerOptions": {
       "module": "CommonJS"
     }
   },
-  "exclude": ["node_modules", "dist", "build", "coverage"]
+  "exclude": [
+    "node_modules",
+    "dist",
+    "build",
+    "coverage"
+  ]
 }