"""Tests for agents/base.py — BaseOrchestrator ABC."""

import pytest
from agents.base import BaseOrchestrator
from agents.agent_flow import ChatTurnResponse
from agents.design_state import DesignState


class TestBaseOrchestrator:
    def test_cannot_instantiate(self):
        with pytest.raises(TypeError):
            BaseOrchestrator()

    def test_subclass_must_implement_chat_turn(self):
        class Incomplete(BaseOrchestrator):
            pass
        with pytest.raises(TypeError):
            Incomplete()

    def test_subclass_with_chat_turn(self, tmp_path):
        class Complete(BaseOrchestrator):
            def chat_turn(self, message, history, mentions=None, design_state=None, plan_context=False):
                return ChatTurnResponse(responses=[], preview=None, design_state=DesignState())
        orch = Complete(output_dir=tmp_path)
        result = orch.chat_turn("test", [])
        assert isinstance(result, ChatTurnResponse)
        assert result.responses == []

    def test_output_dir_created(self, tmp_path):
        out = tmp_path / "new_dir"
        class Complete(BaseOrchestrator):
            def chat_turn(self, message, history, mentions=None, design_state=None, plan_context=False):
                return ChatTurnResponse(responses=[], preview=None, design_state=DesignState())
        orch = Complete(output_dir=out)
        assert out.exists()

    def test_default_output_dir_from_settings(self):
        class Complete(BaseOrchestrator):
            def chat_turn(self, message, history, mentions=None, design_state=None, plan_context=False):
                return ChatTurnResponse(responses=[], preview=None, design_state=DesignState())
        orch = Complete()
        assert orch.output_dir is not None