"""测试 governance service 中的 goal 事件写入与会话目标自动持久化。"""

import pytest

from app.core.errors import AppError
from app.models.governance import Goal

# ── auto_persist_session_goal 测试 ──


@pytest.mark.asyncio
async def test_auto_persist_session_goal_creates_new():
    """auto_persist_session_goal: 当没有活跃的 session 目标时，创建一个新的。"""
    from app.db.session import AsyncSessionLocal
    from app.services.goal_persist import auto_persist_session_goal

    async with AsyncSessionLocal() as session:
        goal = await auto_persist_session_goal(session, "char_c", "帮助用户解决编程问题")
        assert goal is not None
        assert goal.level == "session"
        assert goal.character_id == "char_c"
        assert "编程" in goal.title


@pytest.mark.asyncio
async def test_auto_persist_session_goal_reuses_active():
    """auto_persist_session_goal: 已有活跃 session 目标时，不创建新的。"""
    from app.db.session import AsyncSessionLocal
    from app.services.goal_persist import auto_persist_session_goal

    async with AsyncSessionLocal() as session:
        existing = Goal(
            id="goal_session_existing",
            character_id="char_d",
            level="session",
            status="active",
            title="已有目标",
            priority=50,
        )
        session.add(existing)
        await session.flush()
        goal = await auto_persist_session_goal(session, "char_d", "新对话内容要足够长才能通过验证")
        assert goal is not None
        assert goal.id == "goal_session_existing"  # 复用了已有目标


@pytest.mark.asyncio
async def test_auto_persist_session_goal_short_content():
    """auto_persist_session_goal: 内容过短时返回 None。"""
    from app.db.session import AsyncSessionLocal
    from app.services.goal_persist import auto_persist_session_goal

    async with AsyncSessionLocal() as session:
        goal = await auto_persist_session_goal(session, "char_c", "你好")
        assert goal is None


# ── governance service CRUD 测试（事件写入通过 emit_goal_event 静默跳过）──


@pytest.mark.asyncio
async def test_create_goal_success():
    """create_goal: 创建目标成功，返回 GoalNode。"""
    from app.schemas.admin import CreateGoalRequest
    from app.services.governance import create_goal

    payload = CreateGoalRequest(
        title="测试目标",
        description="这是一个测试目标",
        level="session",
        priority=50,
    )
    result = await create_goal(payload)
    assert result.title == "测试目标"
    assert result.level == "session"
    assert result.status == "pending"


@pytest.mark.asyncio
async def test_update_goal_success():
    """update_goal: 更新目标成功。"""
    from app.schemas.admin import CreateGoalRequest, UpdateGoalRequest
    from app.services.governance import create_goal, update_goal

    payload = CreateGoalRequest(
        title="待更新目标",
        description="稍后更新",
        level="task",
        priority=50,
    )
    created = await create_goal(payload)

    update = UpdateGoalRequest(title="已更新目标", status="active")
    updated = await update_goal(created.id, update)
    assert updated.title == "已更新目标"
    assert updated.status == "active"


@pytest.mark.asyncio
async def test_update_goal_not_found():
    """update_goal: 目标不存在时抛出 AppError。"""
    from app.schemas.admin import UpdateGoalRequest
    from app.services.governance import update_goal

    update = UpdateGoalRequest(title="不存在")
    with pytest.raises(AppError) as exc:
        await update_goal("goal_nonexistent", update)
    assert "not_found" in str(exc.value)


@pytest.mark.asyncio
async def test_delete_goal_success():
    """delete_goal: 删除目标成功。"""
    from app.schemas.admin import CreateGoalRequest
    from app.services.governance import create_goal, delete_goal, list_goals

    payload = CreateGoalRequest(
        title="待删除目标",
        description="稍后删除",
        level="task",
        priority=50,
    )
    created = await create_goal(payload)
    await delete_goal(created.id)
    all_goals = await list_goals()
    assert not any(g.id == created.id for g in all_goals)