"""Tests for fable_*_project tools."""
from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from fabledassistant.mcp._context import _user_id_ctx
from fabledassistant.mcp.tools.projects import (
    fable_list_projects, fable_get_project, fable_create_project,
    fable_update_project,
)


@pytest.fixture(autouse=True)
def _bind_user():
    token = _user_id_ctx.set(7)
    yield
    _user_id_ctx.reset(token)


def _fake_project(**overrides) -> MagicMock:
    p = MagicMock()
    base = {"id": 1, "title": "P", "description": "", "goal": "",
            "status": "active", "color": None, "auto_summary": None}
    base.update(overrides)
    p.to_dict.return_value = base
    return p


@pytest.mark.asyncio
async def test_list_projects_wraps_in_dict():
    rows = [_fake_project(id=1), _fake_project(id=2)]
    with patch(
        "fabledassistant.mcp.tools.projects.projects_svc.list_projects",
        AsyncMock(return_value=rows),
    ):
        out = await fable_list_projects()
    assert len(out["projects"]) == 2


@pytest.mark.asyncio
async def test_get_project_enriches_with_milestone_summary():
    p = _fake_project(id=5, title="found")
    milestone_summary = [{"id": 10, "title": "MS", "task_count": 3}]
    with patch(
        "fabledassistant.mcp.tools.projects.projects_svc.get_project",
        AsyncMock(return_value=p),
    ), patch(
        "fabledassistant.mcp.tools.projects.milestones_svc.get_project_milestone_summary",
        AsyncMock(return_value=milestone_summary),
    ):
        out = await fable_get_project(project_id=5)
    assert out["id"] == 5
    assert out["milestone_summary"] == milestone_summary


@pytest.mark.asyncio
async def test_get_project_raises_when_not_found():
    with patch(
        "fabledassistant.mcp.tools.projects.projects_svc.get_project",
        AsyncMock(return_value=None),
    ):
        with pytest.raises(ValueError, match="project 999 not found"):
            await fable_get_project(project_id=999)


@pytest.mark.asyncio
async def test_create_project_passes_color_empty_as_none():
    p = _fake_project()
    mock = AsyncMock(return_value=p)
    with patch("fabledassistant.mcp.tools.projects.projects_svc.create_project", mock):
        await fable_create_project(title="P", color="")
    assert mock.call_args.kwargs["color"] is None


@pytest.mark.asyncio
async def test_update_project_only_sends_non_default_fields():
    p = _fake_project()
    mock = AsyncMock(return_value=p)
    with patch("fabledassistant.mcp.tools.projects.projects_svc.update_project", mock):
        await fable_update_project(project_id=1, status="archived")
    args, kwargs = mock.call_args
    assert args == (7, 1)
    assert kwargs == {"status": "archived"}


@pytest.mark.asyncio
async def test_update_project_raises_when_not_found():
    with patch(
        "fabledassistant.mcp.tools.projects.projects_svc.update_project",
        AsyncMock(return_value=None),
    ):
        with pytest.raises(ValueError, match="project 999 not found"):
            await fable_update_project(project_id=999, title="x")