--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/cli/cmd_param.py	Fri Jun 02 14:54:26 2023 +0200
@@ -0,0 +1,183 @@
+#!/usr/bin/env python3
+
+
+# Libervia CLI
+# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
+# Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from . import base
+from libervia.backend.core.i18n import _
+from .constants import Const as C
+
+__commands__ = ["Param"]
+
+
+class Get(base.CommandBase):
+    def __init__(self, host):
+        super(Get, self).__init__(
+            host, "get", need_connect=False, help=_("get a parameter value")
+        )
+
+    def add_parser_options(self):
+        self.parser.add_argument(
+            "category", nargs="?", help=_("category of the parameter")
+        )
+        self.parser.add_argument("name", nargs="?", help=_("name of the parameter"))
+        self.parser.add_argument(
+            "-a",
+            "--attribute",
+            type=str,
+            default="value",
+            help=_("name of the attribute to get"),
+        )
+        self.parser.add_argument(
+            "--security-limit", type=int, default=-1, help=_("security limit")
+        )
+
+    async def start(self):
+        if self.args.category is None:
+            categories = await self.host.bridge.params_categories_get()
+            print("\n".join(categories))
+        elif self.args.name is None:
+            try:
+                values_dict = await self.host.bridge.params_values_from_category_get_async(
+                    self.args.category, self.args.security_limit, "", "", self.profile
+                )
+            except Exception as e:
+                self.disp(
+                    _("can't find requested parameters: {e}").format(e=e), error=True
+                )
+                self.host.quit(C.EXIT_NOT_FOUND)
+            else:
+                for name, value in values_dict.items():
+                    print(f"{name}\t{value}")
+        else:
+            try:
+                value = await self.host.bridge.param_get_a_async(
+                    self.args.name,
+                    self.args.category,
+                    self.args.attribute,
+                    self.args.security_limit,
+                    self.profile,
+                )
+            except Exception as e:
+                self.disp(
+                    _("can't find requested parameter: {e}").format(e=e), error=True
+                )
+                self.host.quit(C.EXIT_NOT_FOUND)
+            else:
+                print(value)
+        self.host.quit()
+
+
+class Set(base.CommandBase):
+    def __init__(self, host):
+        super(Set, self).__init__(
+            host, "set", need_connect=False, help=_("set a parameter value")
+        )
+
+    def add_parser_options(self):
+        self.parser.add_argument("category", help=_("category of the parameter"))
+        self.parser.add_argument("name", help=_("name of the parameter"))
+        self.parser.add_argument("value", help=_("name of the parameter"))
+        self.parser.add_argument(
+            "--security-limit", type=int, default=-1, help=_("security limit")
+        )
+
+    async def start(self):
+        try:
+            await self.host.bridge.param_set(
+                self.args.name,
+                self.args.value,
+                self.args.category,
+                self.args.security_limit,
+                self.profile,
+            )
+        except Exception as e:
+            self.disp(_("can't set requested parameter: {e}").format(e=e), error=True)
+            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
+        else:
+            self.host.quit()
+
+
+class SaveTemplate(base.CommandBase):
+    # FIXME: this should probably be removed, it's not used and not useful for end-user
+
+    def __init__(self, host):
+        super(SaveTemplate, self).__init__(
+            host,
+            "save",
+            use_profile=False,
+            help=_("save parameters template to xml file"),
+        )
+
+    def add_parser_options(self):
+        self.parser.add_argument("filename", type=str, help=_("output file"))
+
+    async def start(self):
+        """Save parameters template to XML file"""
+        try:
+            await self.host.bridge.params_template_save(self.args.filename)
+        except Exception as e:
+            self.disp(_("can't save parameters to file: {e}").format(e=e), error=True)
+            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
+        else:
+            self.disp(
+                _("parameters saved to file {filename}").format(
+                    filename=self.args.filename
+                )
+            )
+            self.host.quit()
+
+
+class LoadTemplate(base.CommandBase):
+    # FIXME: this should probably be removed, it's not used and not useful for end-user
+
+    def __init__(self, host):
+        super(LoadTemplate, self).__init__(
+            host,
+            "load",
+            use_profile=False,
+            help=_("load parameters template from xml file"),
+        )
+
+    def add_parser_options(self):
+        self.parser.add_argument("filename", type=str, help=_("input file"))
+
+    async def start(self):
+        """Load parameters template from xml file"""
+        try:
+            self.host.bridge.params_template_load(self.args.filename)
+        except Exception as e:
+            self.disp(_("can't load parameters from file: {e}").format(e=e), error=True)
+            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
+        else:
+            self.disp(
+                _("parameters loaded from file {filename}").format(
+                    filename=self.args.filename
+                )
+            )
+            self.host.quit()
+
+
+class Param(base.CommandBase):
+    subcommands = (Get, Set, SaveTemplate, LoadTemplate)
+
+    def __init__(self, host):
+        super(Param, self).__init__(
+            host, "param", use_profile=False, help=_("Save/load parameters template")
+        )