feat: implement round for tool selection

packages/valory/skills/decision_maker_abci/states/tool_selection.py

@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+#
+#   Copyright 2023 Valory AG
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+# ------------------------------------------------------------------------------
+
+"""This module contains the tool selection state of the decision-making abci app."""
+
+from packages.valory.skills.abstract_round_abci.base import (
+    CollectSameUntilThresholdRound,
+    get_name,
+)
+from packages.valory.skills.decision_maker_abci.payloads import ToolSelectionPayload
+from packages.valory.skills.decision_maker_abci.states.base import (
+    Event,
+    SynchronizedData,
+)
+
+
+class ToolSelectionRound(CollectSameUntilThresholdRound):
+    """A round for selecting a Mech tool."""
+
+    payload_class = ToolSelectionPayload
+    synchronized_data_class = SynchronizedData
+    done_event = Event.DONE
+    none_event = Event.NONE
+    no_majority_event = Event.NO_MAJORITY
+    selection_key = (
+        get_name(SynchronizedData.available_mech_tools),
+        get_name(SynchronizedData.policy),
+        get_name(SynchronizedData.mech_tool_idx),
+    )
+    collection_key = get_name(SynchronizedData.participant_to_selection)