add basic set up for a download http file handler

cmd/server/main.go

@@ -4,15 +4,67 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"strings"
+
+	"github.com/akave-ai/akavesdk/private/pb"
+	"github.com/akave-ai/akavesdk/sdk"
+	"google.golang.org/grpc"
 )
 
+var ipc *sdk.IPC
+
+func initIPC() {
+	conn, err := grpc.Dial("localhost:50051") // placeholder
+	if err != nil {
+		log.Fatalf("failed to connect to IPC node: %v", err)
+	}
+
+	// need to initialise the client the IPC struct here, need values???
+	ipc = &sdk.IPC{
+		Client: pb.NewIPCNodeAPIClient(conn),
+		Conn:   conn,
+	}
+}
+
 func healthHandler(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintln(w, "ok")
 }
 
+func downloadHandler(w http.ResponseWriter, r *http.Request) {
+	if ipc == nil {
+		http.Error(w, "IPC client not initialized", http.StatusInternalServerError)
+		return
+	}
+
+	parts := strings.Split(strings.Trim(r.URL.Path, "/"), "/")
+	if len(parts) != 4 || parts[1] != "files" || parts[3] != "download" {
+		http.NotFound(w, r)
+		return
+	}
+
+	bucketID := parts[0]
+	fileID := parts[2]
+
+	ctx := r.Context()
+	fileDownload, err := ipc.CreateFileDownload(ctx, bucketID, fileID) // must take bucketName and FileName but URL provides only ID
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to download the file : %v", err), http.StatusInternalServerError)
+		return
+	}
+
+	err = ipc.Download(ctx, fileDownload, w)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to download the file : %v", err), http.StatusInternalServerError)
+		return
+	}
+}
+
 func main() {
+	initIPC()
 	http.HandleFunc("/health", healthHandler)
 
+	http.HandleFunc("/", downloadHandler) // must use router
+
 	log.Println("Starting go-akavelink server on :8080...")
 	err := http.ListenAndServe(":8080", nil)
 	if err != nil {