from .test_nodes import (
    TestEventService,
    ErrorInvocation,
    TextToImageTestInvocation,
    PromptTestInvocation,
    create_edge,
    wait_until,
)
from invokeai.app.services.invocation_queue import MemoryInvocationQueue
from invokeai.app.services.processor import DefaultInvocationProcessor
from invokeai.app.services.sqlite import SqliteItemStorage, sqlite_memory
from invokeai.app.services.invoker import Invoker
from invokeai.app.services.invocation_services import InvocationServices
from invokeai.app.services.invocation_stats import InvocationStatsService
from invokeai.app.services.graph import (
    Graph,
    GraphExecutionState,
    LibraryGraph,
)
import pytest


@pytest.fixture
def simple_graph():
    g = Graph()
    g.add_node(PromptTestInvocation(id="1", prompt="Banana sushi"))
    g.add_node(TextToImageTestInvocation(id="2"))
    g.add_edge(create_edge("1", "prompt", "2", "prompt"))
    return g


# This must be defined here to avoid issues with the dynamic creation of the union of all invocation types
# Defining it in a separate module will cause the union to be incomplete, and pydantic will not validate
# the test invocations.
@pytest.fixture
def mock_services() -> InvocationServices:
    # NOTE: none of these are actually called by the test invocations
    graph_execution_manager = SqliteItemStorage[GraphExecutionState](
        filename=sqlite_memory, table_name="graph_executions"
    )
    return InvocationServices(
        model_manager=None,  # type: ignore
        events=TestEventService(),
        logger=None,  # type: ignore
        images=None,  # type: ignore
        latents=None,  # type: ignore
        boards=None,  # type: ignore
        board_images=None,  # type: ignore
        queue=MemoryInvocationQueue(),
        graph_library=SqliteItemStorage[LibraryGraph](filename=sqlite_memory, table_name="graphs"),
        graph_execution_manager=graph_execution_manager,
        processor=DefaultInvocationProcessor(),
        performance_statistics=InvocationStatsService(graph_execution_manager),
        configuration=None,  # type: ignore
    )


@pytest.fixture()
def mock_invoker(mock_services: InvocationServices) -> Invoker:
    return Invoker(services=mock_services)


def test_can_create_graph_state(mock_invoker: Invoker):
    g = mock_invoker.create_execution_state()
    mock_invoker.stop()

    assert g is not None
    assert isinstance(g, GraphExecutionState)


def test_can_create_graph_state_from_graph(mock_invoker: Invoker, simple_graph):
    g = mock_invoker.create_execution_state(graph=simple_graph)
    mock_invoker.stop()

    assert g is not None
    assert isinstance(g, GraphExecutionState)
    assert g.graph == simple_graph


# @pytest.mark.xfail(reason = "Requires fixing following the model manager refactor")
def test_can_invoke(mock_invoker: Invoker, simple_graph):
    g = mock_invoker.create_execution_state(graph=simple_graph)
    invocation_id = mock_invoker.invoke(g)
    assert invocation_id is not None

    def has_executed_any(g: GraphExecutionState):
        g = mock_invoker.services.graph_execution_manager.get(g.id)
        return len(g.executed) > 0

    wait_until(lambda: has_executed_any(g), timeout=5, interval=1)
    mock_invoker.stop()

    g = mock_invoker.services.graph_execution_manager.get(g.id)
    assert len(g.executed) > 0


# @pytest.mark.xfail(reason = "Requires fixing following the model manager refactor")
def test_can_invoke_all(mock_invoker: Invoker, simple_graph):
    g = mock_invoker.create_execution_state(graph=simple_graph)
    invocation_id = mock_invoker.invoke(g, invoke_all=True)
    assert invocation_id is not None

    def has_executed_all(g: GraphExecutionState):
        g = mock_invoker.services.graph_execution_manager.get(g.id)
        return g.is_complete()

    wait_until(lambda: has_executed_all(g), timeout=5, interval=1)
    mock_invoker.stop()

    g = mock_invoker.services.graph_execution_manager.get(g.id)
    assert g.is_complete()


# @pytest.mark.xfail(reason = "Requires fixing following the model manager refactor")
def test_handles_errors(mock_invoker: Invoker):
    g = mock_invoker.create_execution_state()
    g.graph.add_node(ErrorInvocation(id="1"))

    mock_invoker.invoke(g, invoke_all=True)

    def has_executed_all(g: GraphExecutionState):
        g = mock_invoker.services.graph_execution_manager.get(g.id)
        return g.is_complete()

    wait_until(lambda: has_executed_all(g), timeout=5, interval=1)
    mock_invoker.stop()

    g = mock_invoker.services.graph_execution_manager.get(g.id)
    assert g.has_error()
    assert g.is_complete()

    assert all((i in g.errors for i in g.source_prepared_mapping["1"]))