fix: embed webapp on go build

Author: buildtheui

main.go

@@ -1,10 +1,19 @@
 package main
 
 import (
+	"embed"
+
 	"github.com/buildtheui/DropMyFile/pkg/cmd"
+	"github.com/buildtheui/DropMyFile/pkg/global"
 )
 
+//go:embed views/*
+var views embed.FS
+
 func main() {
+	// Set views files to global variable so files are embed at compile time
+	global.ViewsContent = views
+
 	// Init command line
 	cmd.Execute()
 }

pkg/api/api.go

@@ -4,13 +4,15 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"net/http"
 
 	folderManager "github.com/buildtheui/DropMyFile/pkg/folder_manager"
 	"github.com/buildtheui/DropMyFile/pkg/global"
 	"github.com/buildtheui/DropMyFile/pkg/models"
 	"github.com/buildtheui/DropMyFile/pkg/utils"
 	"github.com/gofiber/contrib/websocket"
 	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/filesystem"
 	fiberUtils "github.com/gofiber/fiber/v2/utils"
 	"github.com/gofiber/template/html/v2"
 )
@@ -29,7 +31,7 @@ func setupRoutes() {
 
 
 	App.Get("/", func(c *fiber.Ctx) error {
-		return c.Render("index", fiber.Map{ "Session": global.GSession })
+		return c.Render("views/index", fiber.Map{ "Session": global.GSession })
 	})
 
 	App.Use("/ws", func(c *fiber.Ctx) error {
@@ -157,7 +159,7 @@ func setUpWebSockets() {
 
 func RouterInit() *fiber.App {
 	// Load templates
-	var engine = html.New("./views", ".html")
+	var engine = html.NewFileSystem(http.FS(global.ViewsContent), ".html")
 
 	// Create a new Fiber app
 	App = fiber.New(fiber.Config{
@@ -171,6 +173,14 @@ func RouterInit() *fiber.App {
 	// Only LAN users can access with the correct session printed in console
 	App.Use(global.ValidateSession)
 
+	// Without `PathPrefix`, you have to access it via URL:
+    // `http://<server>/assets/assets/asset_name_example.png`.
+    App.Use("/assets", filesystem.New(filesystem.Config{
+        Root: http.FS(global.ViewsContent),
+        PathPrefix: "assets",
+		Browse:     true,
+    }))
+
 	// Call setupRoutes to set up your routes
 	setupRoutes()
 	setUpApis()

pkg/global/global.go

@@ -1,6 +1,7 @@
 package global
 
 import (
+	"embed"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -12,6 +13,7 @@ import (
 	"github.com/joho/godotenv"
 )
 
+var ViewsContent embed.FS
 var ServerPort int
 var SessionLength int
 var GSession string