Add role management

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/server/authz/permissions_handler.go

@@ -0,0 +1,76 @@
+// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package authz
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+	"go.gearno.de/kit/httpserver"
+	"go.gearno.de/kit/log"
+	"go.probo.inc/probo/pkg/authz"
+	"go.probo.inc/probo/pkg/coredata"
+	"go.probo.inc/probo/pkg/gid"
+)
+
+// PermissionsHandler returns permissions for the current user's role in an organization
+// It uses the centralized permissions map
+func PermissionsHandler(
+	authzService *authz.Service,
+	userFromContext func(ctx context.Context) *coredata.User,
+	logger *log.Logger,
+) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+
+		orgIDStr := chi.URLParam(r, "organizationID")
+		if orgIDStr == "" {
+			http.Error(w, "organizationID parameter required", http.StatusBadRequest)
+			return
+		}
+
+		orgID, err := gid.ParseGID(orgIDStr)
+		if err != nil {
+			http.Error(w, "invalid organizationID", http.StatusBadRequest)
+			return
+		}
+
+		user := userFromContext(ctx)
+		if user == nil {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		tenantAuthzSvc := authzService.WithTenant(orgID.TenantID())
+
+		memberRole, err := tenantAuthzSvc.GetUserRoleInOrganization(ctx, user.ID, orgID)
+		if err != nil {
+			http.Error(w, fmt.Sprintf("cannot get user role: %v", err), http.StatusInternalServerError)
+			return
+		}
+		userRole := authz.Role(memberRole.String())
+
+		permissions := authz.GetPermissionsByRole(userRole)
+
+		response := map[string]any{
+			"permissions": permissions,
+			"role":        memberRole.String(),
+		}
+
+		httpserver.RenderJSON(w, http.StatusOK, response)
+	}
+}