from agent.core.runner import AgentRunner, RunConfig
from agent.orchestration.models import CompletionPolicy
from agent.trace.models import Trace


def test_run_config_defaults_to_legacy_auto():
    assert RunConfig().completion_policy == CompletionPolicy.LEGACY_AUTO


def test_old_trace_without_agent_role_reads_as_legacy():
    original = Trace(trace_id="old", mode="agent").to_dict()
    original.pop("agent_role")
    trace = Trace.from_dict(original)
    assert trace.agent_role == "legacy"


def test_legacy_schema_keeps_agent_evaluate_goal_but_hides_explicit_tools():
    runner = AgentRunner(llm_call=lambda **_: None)
    schemas = runner._get_run_tool_schemas(RunConfig(tool_groups=["core"]))
    names = {schema["function"]["name"] for schema in schemas}
    assert {"agent", "evaluate", "goal"}.issubset(names)
    assert names.isdisjoint({
        "task_plan", "dispatch_tasks", "task_decide", "validate_attempt",
        "submit_attempt", "submit_validation",
    })


def test_legacy_tools_and_groups_keep_union_semantics():
    runner = AgentRunner(llm_call=lambda **_: None)
    schemas = runner._get_tool_schemas(tools=["read_file"], tool_groups=["core"])
    names = {schema["function"]["name"] for schema in schemas}
    assert "read_file" in names
    assert "agent" in names