"""Boot non-regression test for navigate wiring — catches import/regression bugs.

This test would have caught the ImportError where _handle_navigate_action
was incorrectly imported from replay_engine instead of core/navigation.
"""

import pytest


class TestApiStreamImports:
    """(1) api_stream must import without error."""

    def test_import_api_stream(self):
        from agent_v0.server_v1 import api_stream
        assert api_stream is not None


class TestAllowedActionTypes:
    """(2) 'navigate' must be in both _ALLOWED and _SERVER_SIDE."""

    def test_navigate_in_allowed(self):
        from agent_v0.server_v1.replay_engine import _ALLOWED_ACTION_TYPES
        assert "navigate" in _ALLOWED_ACTION_TYPES

    def test_navigate_in_server_side(self):
        from agent_v0.server_v1.replay_engine import _SERVER_SIDE_ACTION_TYPES
        assert "navigate" in _SERVER_SIDE_ACTION_TYPES


class TestNavigateHandlerCallable:
    """(3) _handle_navigate_action must be callable with correct signature."""

    def test_handler_imported_from_core_navigation(self):
        from core.navigation import _handle_navigate_action
        assert callable(_handle_navigate_action)

    def test_handler_imported_in_api_stream(self):
        from agent_v0.server_v1 import api_stream
        handler = api_stream._handle_navigate_action
        assert callable(handler)

    def test_handler_signature(self):
        """Signature: (action: dict, replay_state: dict, session_id: str) -> bool."""
        from core.navigation import _handle_navigate_action
        import inspect
        sig = inspect.signature(_handle_navigate_action)
        params = list(sig.parameters.keys())
        assert params == ["action", "replay_state", "session_id"]
        assert sig.return_annotation == bool


class TestDispatchBlockExists:
    """Verify the navigate dispatch block is wired in api_stream."""

    def test_navigate_dispatch_reference(self):
        """Source must contain the navigate dispatch elif block."""
        import agent_v0.server_v1.api_stream as mod
        source = inspect.getsource(mod)
        assert "type_ == \"navigate\"" in source


import inspect