80 lines
1.7 KiB
Go
80 lines
1.7 KiB
Go
package web
|
|
|
|
import (
|
|
"embed"
|
|
"io"
|
|
"io/fs"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
//go:embed all:dist
|
|
var frontendFS embed.FS
|
|
|
|
// ServeEmbeddedFrontend returns a Gin handler that serves embedded frontend assets
|
|
// and handles SPA routing by falling back to index.html for non-API routes.
|
|
func ServeEmbeddedFrontend() gin.HandlerFunc {
|
|
distFS, err := fs.Sub(frontendFS, "dist")
|
|
if err != nil {
|
|
panic("failed to get dist subdirectory: " + err.Error())
|
|
}
|
|
fileServer := http.FileServer(http.FS(distFS))
|
|
|
|
return func(c *gin.Context) {
|
|
path := c.Request.URL.Path
|
|
|
|
// Skip API and gateway routes
|
|
if strings.HasPrefix(path, "/api/") ||
|
|
strings.HasPrefix(path, "/v1/") ||
|
|
strings.HasPrefix(path, "/setup/") ||
|
|
path == "/health" {
|
|
c.Next()
|
|
return
|
|
}
|
|
|
|
// Try to serve static file
|
|
cleanPath := strings.TrimPrefix(path, "/")
|
|
if cleanPath == "" {
|
|
cleanPath = "index.html"
|
|
}
|
|
|
|
if file, err := distFS.Open(cleanPath); err == nil {
|
|
file.Close()
|
|
fileServer.ServeHTTP(c.Writer, c.Request)
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
// SPA fallback: serve index.html for all other routes
|
|
serveIndexHTML(c, distFS)
|
|
}
|
|
}
|
|
|
|
func serveIndexHTML(c *gin.Context, fsys fs.FS) {
|
|
file, err := fsys.Open("index.html")
|
|
if err != nil {
|
|
c.String(http.StatusNotFound, "Frontend not found")
|
|
c.Abort()
|
|
return
|
|
}
|
|
defer file.Close()
|
|
|
|
content, err := io.ReadAll(file)
|
|
if err != nil {
|
|
c.String(http.StatusInternalServerError, "Failed to read index.html")
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
c.Data(http.StatusOK, "text/html; charset=utf-8", content)
|
|
c.Abort()
|
|
}
|
|
|
|
// HasEmbeddedFrontend checks if frontend assets are embedded
|
|
func HasEmbeddedFrontend() bool {
|
|
_, err := frontendFS.ReadFile("dist/index.html")
|
|
return err == nil
|
|
}
|