from types import SimpleNamespace
from typing import cast
from unittest.mock import AsyncMock, MagicMock, patch

import pytest
import pytest_asyncio

import sync_state_machine.domain  # noqa: F401
from sync_state_machine.common.binding import BindingManager
from sync_state_machine.common.collection import DataCollection
from sync_state_machine.common.sync_node import SyncNode
from sync_state_machine.common.sqlite_backend import SQLitePersistenceBackend
from sync_state_machine.common.types import BindingStatus
from sync_state_machine.domain.project_detail.sync_strategy import ProjectDetailSyncStrategy
from sync_state_machine.domain.project_detail.sync_node import ProjectDetailSyncNode
from sync_state_machine.sync_system.config import UpdateDirection
from sync_state_machine.sync_system.strategy_ops import BoundNodePair


def _fake_node(*, node_id: str, key: str):
    data = {"id": node_id, "key": key}
    return cast(
        SyncNode,
        SimpleNamespace(
            node_id=node_id,
            data_id=node_id,
            action=None,
            context={},
            get_data=lambda: data,
        ),
    )


def _build_project_detail_node(*, node_id: str, data_id: str, key: str) -> ProjectDetailSyncNode:
    return ProjectDetailSyncNode(
        node_id=node_id,
        data_id=data_id,
        data={
            "id": data_id,
            "project_id": "project-1",
            "key": key,
            "value": [{"year": 2026, "capacity": 4.0}],
        },
    )


@pytest_asyncio.fixture
async def project_detail_env(tmp_path):
    persistence = SQLitePersistenceBackend(str(tmp_path / "project-detail.db"))
    await persistence.initialize()
    local = DataCollection("local", persistence=persistence, auto_persist=False)
    remote = DataCollection("remote", persistence=persistence, auto_persist=False)
    binding_manager = BindingManager(persistence, auto_persist=False)
    yield local, remote, binding_manager, persistence
    await persistence.close()


@pytest.mark.asyncio
async def test_project_detail_process_update_pairs_partitions_group_production_plans_before_generic_logic():
    strategy = ProjectDetailSyncStrategy("project_detail_data", MagicMock(), MagicMock(), MagicMock())

    pull_pair = BoundNodePair(
        local_node=_fake_node(node_id="local-pull", key="ensure_production"),
        remote_node=_fake_node(node_id="remote-pull", key="ensure_production"),
    )
    generic_pair = BoundNodePair(
        local_node=_fake_node(node_id="local-generic", key="production"),
        remote_node=_fake_node(node_id="remote-generic", key="production"),
    )
    pull_node = SimpleNamespace(node_id="pull-update")
    generic_node = SimpleNamespace(node_id="generic-update")

    with patch.object(
        strategy,
        "prepare_update_for_direction",
        new=AsyncMock(return_value=pull_node),
    ) as mock_prepare, patch.object(
        strategy,
        "update_pair",
        new=AsyncMock(return_value=[generic_node]),
    ) as mock_update_pair:
        updated_by_id = await strategy.process_update_pairs([pull_pair, generic_pair], {})

    assert updated_by_id == {
        "pull-update": pull_node,
        "generic-update": generic_node,
    }
    mock_prepare.assert_awaited_once_with(
        pull_pair.local_node,
        pull_pair.remote_node,
        UpdateDirection.PULL,
        {},
    )
    mock_update_pair.assert_awaited_once_with(generic_pair.local_node, generic_pair.remote_node, {})


def test_project_detail_domain_option_is_typed_schema() -> None:
    strategy = ProjectDetailSyncStrategy("project_detail_data", MagicMock(), MagicMock(), MagicMock())

    assert strategy.domain_option.pull_group_production_plans is True


@pytest.mark.asyncio
async def test_project_detail_bind_create_pulls_group_production_plan_from_remote(project_detail_env) -> None:
    local, remote, binding_manager, _ = project_detail_env
    strategy = ProjectDetailSyncStrategy("project_detail_data", local, remote, binding_manager)
    strategy.config.depend_fields = {}

    remote_node = _build_project_detail_node(
        node_id="remote-pull",
        data_id="detail-remote-pull",
        key="ensure_production",
    )
    await remote.add(remote_node)

    await strategy.bind()
    created_nodes = await strategy.create()

    assert len(created_nodes) == 1
    created_node = created_nodes[0]
    created_data = created_node.get_data()
    assert created_node.node_type == "project_detail_data"
    assert created_data is not None
    assert created_data["key"] == "ensure_production"
    assert remote_node.binding_status == BindingStatus.PEER_CREATING
    assert await binding_manager.get_local_id("project_detail_data", remote_node.node_id) == created_node.node_id


@pytest.mark.asyncio
async def test_project_detail_bind_does_not_push_group_production_plan_from_local(project_detail_env) -> None:
    local, remote, binding_manager, _ = project_detail_env
    strategy = ProjectDetailSyncStrategy("project_detail_data", local, remote, binding_manager)
    strategy.config.depend_fields = {}

    local_node = _build_project_detail_node(
        node_id="local-pull",
        data_id="detail-local-pull",
        key="ensure_production",
    )
    await local.add(local_node)

    await strategy.bind()
    created_nodes = await strategy.create()

    assert created_nodes == []
    assert remote.filter(node_type="project_detail_data") == []
    assert await binding_manager.get_remote_id("project_detail_data", local_node.node_id) is None