feat: get all roles endpoint

internal/admin/roles.go

@@ -0,0 +1,61 @@
+package admin
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+
+	"gitea.local/admin/hspguard/internal/repository"
+	"gitea.local/admin/hspguard/internal/web"
+)
+
+func (h *AdminHandler) GetAllRoles(w http.ResponseWriter, r *http.Request) {
+	rows, err := h.repo.GetRolesGroupedWithPermissions(r.Context())
+	if err != nil {
+		log.Println("ERR: Failed to list roles from db:", err)
+		web.Error(w, "failed to get all roles", http.StatusInternalServerError)
+		return
+	}
+
+	type RolePermissions struct {
+		Permissions []repository.Permission `json:"permissions"`
+		repository.Role
+	}
+
+	type RowDTO struct {
+		Scope string            `json:"scope"`
+		Roles []RolePermissions `json:"roles"`
+	}
+
+	if len(rows) == 0 {
+		rows = make([]repository.GetRolesGroupedWithPermissionsRow, 0)
+	}
+
+	var mapped []RowDTO
+
+	for _, row := range rows {
+		var mappedRow RowDTO
+
+		mappedRow.Scope = row.Scope
+
+		if err := json.Unmarshal(row.Roles, &mappedRow.Roles); err != nil {
+			log.Println("ERR: Failed to extract roles from byte array:", err)
+			web.Error(w, "failed to get roles", http.StatusInternalServerError)
+			return
+		}
+
+		mapped = append(mapped, mappedRow)
+	}
+
+	if len(mapped) == 0 {
+		mapped = make([]RowDTO, 0)
+	}
+
+	encoder := json.NewEncoder(w)
+
+	w.Header().Set("Content-Type", "application/json")
+
+	if err := encoder.Encode(mapped); err != nil {
+		web.Error(w, "failed to encode response", http.StatusInternalServerError)
+	}
+}

internal/admin/routes.go

@@ -44,6 +44,8 @@ func (h *AdminHandler) RegisterRoutes(router chi.Router) {
 
 		r.Get("/permissions", h.GetAllPermissions)
 		r.Get("/permissions/{user_id}", h.GetUserPermissions)
+
+		r.Get("/roles", h.GetAllRoles)
 	})
 
 	router.Get("/api-services/client/{client_id}", h.GetApiServiceCID)