from app.service.memory_service import MemoryService


def test_memory_extraction_policy() -> None:
    assert MemoryService.should_extract_memory(
        conversation_content="我的风险偏好是稳健", role="user"
    )
    assert not MemoryService.should_extract_memory(conversation_content="", role="user")
    assert MemoryService.should_extract_memory(
        conversation_content="completed", role="system", event_type="trade.completed"
    )


def test_explicit_short_statement_triggers_without_length_threshold() -> None:
    """长度不再是门槛：两三个字的明确陈述（如"只买货币基金"）必须触发。"""
    assert MemoryService.should_extract_memory(conversation_content="只买货币基金", role="user")
    assert MemoryService.should_extract_memory(conversation_content="随时赎回", role="user")


def test_plain_question_never_triggers_even_when_long() -> None:
    """普通问答即使很长也不触发：没有持久事实就没有记忆。"""
    question = (
        "帮我看看沪深300指数基金最近三个月的走势、同类排名和费率结构，"
        "再解释一下它跟踪误差是怎么算出来的好吗？"
    )
    assert not MemoryService.should_extract_memory(conversation_content=question, role="user")
    assert not MemoryService.should_extract_memory(
        conversation_content="我想买基金", role="user")


def test_reply_and_unknown_event_do_not_trigger() -> None:
    """助手回复、以及非持久事实类事件（如运行完成）都不触发。"""
    assert not MemoryService.should_extract_memory(
        conversation_content="已为您记录该偏好，还需要什么帮助？", role="assistant")
    assert not MemoryService.should_extract_memory(
        conversation_content="agent.run_completed", role="system",
        event_type="agent.run_completed")


def test_explicit_signal_and_tool_result_trigger() -> None:
    """调用点显式传入的受控信号、以及工具产出的权威事实同样触发。"""
    assert MemoryService.should_extract_memory(
        conversation_content="嗯", role="user", signals=("profile:family",))
    assert MemoryService.should_extract_memory(
        conversation_content="suitability check passed", role="system", tool_result=True)


def test_detect_memory_signals_returns_controlled_keys() -> None:
    assert MemoryService.detect_memory_signals("我从事教师工作，已婚有两个孩子") == (
        "profile:occupation", "profile:family",
    )
    assert MemoryService.detect_memory_signals("帮我查一下今天的净值") == ()