backend structure build

backend/internal/api/handlers.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
 	"strconv"
 	"time"
@@ -102,6 +103,28 @@ func handleCreateRepository(sm *services.ServiceManager) http.HandlerFunc {
 			return
 		}
 
+		// Validate input
+		if err := validateRepositoryName(req.Name); err != nil {
+			jsonError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+		if err := validateSize(req.Size); err != nil {
+			jsonError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+		if req.Type != "lvm" && req.Type != "zfs" {
+			jsonError(w, http.StatusBadRequest, "type must be 'lvm' or 'zfs'")
+			return
+		}
+		if req.Type == "lvm" && req.VGName == "" {
+			jsonError(w, http.StatusBadRequest, "vg_name is required for LVM repositories")
+			return
+		}
+		if req.Type == "zfs" && req.PoolName == "" {
+			jsonError(w, http.StatusBadRequest, "pool_name is required for ZFS repositories")
+			return
+		}
+
 		repo, err := sm.Disk.CreateRepository(req.Name, req.Size, req.Type, req.VGName, req.PoolName)
 		if err != nil {
 			jsonError(w, http.StatusInternalServerError, err.Error())
@@ -240,6 +263,22 @@ func handleCreateTarget(sm *services.ServiceManager) http.HandlerFunc {
 			return
 		}
 
+		// Validate input
+		if err := validateIQN(req.IQN); err != nil {
+			jsonError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+		if len(req.Portals) == 0 {
+			jsonError(w, http.StatusBadRequest, "at least one portal is required")
+			return
+		}
+		for _, portal := range req.Portals {
+			if err := validatePortal(portal); err != nil {
+				jsonError(w, http.StatusBadRequest, err.Error())
+				return
+			}
+		}
+
 		target, err := sm.ISCSI.CreateTarget(req.IQN, req.Portals, req.Initiators)
 		if err != nil {
 			jsonError(w, http.StatusInternalServerError, err.Error())
@@ -315,6 +354,63 @@ func handleListSessions(sm *services.ServiceManager) http.HandlerFunc {
 	}
 }
 
+func handleAddLUN(sm *services.ServiceManager) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		vars := mux.Vars(r)
+		var req struct {
+			LUNNumber  int    `json:"lun_number"`
+			DevicePath string `json:"device_path"`
+			Type       string `json:"type"` // "disk" or "tape"
+		}
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			jsonError(w, http.StatusBadRequest, "Invalid request body")
+			return
+		}
+
+		if req.Type != "disk" && req.Type != "tape" {
+			jsonError(w, http.StatusBadRequest, "type must be 'disk' or 'tape'")
+			return
+		}
+
+		if err := sm.ISCSI.AddLUN(vars["id"], req.LUNNumber, req.DevicePath, req.Type); err != nil {
+			jsonError(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		// Return updated target
+		target, err := sm.ISCSI.GetTarget(vars["id"])
+		if err != nil {
+			jsonError(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		jsonResponse(w, http.StatusOK, target)
+	}
+}
+
+func handleRemoveLUN(sm *services.ServiceManager) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		vars := mux.Vars(r)
+		lunNumber := 0
+		if _, err := fmt.Sscanf(vars["lun"], "%d", &lunNumber); err != nil {
+			jsonError(w, http.StatusBadRequest, "invalid LUN number")
+			return
+		}
+
+		if err := sm.ISCSI.RemoveLUN(vars["id"], lunNumber); err != nil {
+			jsonError(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		// Return updated target
+		target, err := sm.ISCSI.GetTarget(vars["id"])
+		if err != nil {
+			jsonError(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		jsonResponse(w, http.StatusOK, target)
+	}
+}
+
 // Bacula handlers
 func handleBaculaStatus(sm *services.ServiceManager) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {