from __future__ import annotations

from typing import Any, cast

import pytest

from wf_authoring import WorkflowBuilder
from wf_client import App, ArtifactRef, EditableWorkflow
from wf_client.protocols import WorkflowClientPort


class FakePort:
    def __init__(self) -> None:
        self.calls: list[tuple[str, dict[str, Any]]] = []
        self.validate_artifact_plan_result: dict[str, Any] = {
            "status": "valid",
            "diagnostics": [],
            "required_capabilities": [],
            "workflow_dependencies": {},
        }
        self.inspect_artifact_result: dict[str, Any] | None = None

    async def validate_artifact_plan(self, **params: Any) -> object:
        self.calls.append(("validate_artifact_plan", params))
        return self.validate_artifact_plan_result

    async def create_artifact_from_plan(self, **params: Any) -> object:
        self.calls.append(("create_artifact_from_plan", params))
        return {"artifact_id": params["artifact_id"], "version": params["version"], "saved": True}

    async def inspect_artifact(self, **params: Any) -> object:
        self.calls.append(("inspect_artifact", params))
        assert self.inspect_artifact_result is not None
        return self.inspect_artifact_result


def valid_plan(version: int = 1) -> dict[str, Any]:
    return {
        "id": "report",
        "version": version,
        "title": "Report",
        "kind": "workflow",
        "description": None,
        "input_schema": {"type": "object", "properties": {}},
        "output_schema": {"type": "object", "properties": {"value": {"type": "string"}}},
        "outcomes": ["ok"],
        "plan": {
            "name": "report",
            "input_schema": {"type": "object", "properties": {}},
            "state_schema": {"type": "object", "properties": {"value": {"type": "string"}}},
            "output_schema": {"type": "object", "properties": {"value": {"type": "string"}}},
            "outcomes": ["ok"],
            "output": [{"path": "state.value", "target": "value"}],
            "start": "done",
            "nodes": [{"id": "done", "type": "end", "outcome": "ok"}],
            "edges": [],
        },
        "required_capabilities": [],
        "workflow_dependencies": {},
        "created_from_catalog_version": None,
    }


@pytest.mark.asyncio
async def test_validate_stops_before_remote_call_when_local_graph_is_invalid() -> None:
    port = FakePort()
    graph = App._from_port(cast(WorkflowClientPort, port)).new_workflow(
        "invalid",
        input_schema={"type": "object", "properties": {}},
        state_schema={"type": "object", "properties": {}},
        output_schema={"type": "object", "properties": {}},
    )

    result = await graph.validate()

    assert result.local.ok is False
    assert result.remote_status == "not_run"
    assert port.calls == []


@pytest.mark.asyncio
async def test_validate_runs_local_and_server_validation() -> None:
    port = FakePort()
    graph = App._from_port(cast(WorkflowClientPort, port)).new_workflow(
        "report",
        input_schema={"type": "object", "properties": {}},
        state_schema={"type": "object", "properties": {"value": {"type": "string"}}},
        output_schema={"type": "object", "properties": {"value": {"type": "string"}}},
    )
    done = graph.end("ok", id="done")
    graph.set_entry_point(done)

    result = await graph.validate()

    assert result.ok is True
    assert result.local.ok is True
    assert result.remote_status == "valid"
    assert port.calls[-1][0] == "validate_artifact_plan"


@pytest.mark.asyncio
async def test_edit_and_save_inspects_exact_saved_version() -> None:
    port = FakePort()
    port.inspect_artifact_result = valid_plan(version=1)
    app = App._from_port(cast(WorkflowClientPort, port))

    graph = await app.edit_workflow("report", version=1)
    assert isinstance(graph, WorkflowBuilder)
    assert isinstance(graph, EditableWorkflow)
    assert all(hasattr(graph, name) for name in ("when", "choose", "match", "foreach", "interrupt", "end", "connect", "set_entry_point"))

    port.inspect_artifact_result = valid_plan(version=2)
    saved = await graph.save(version=2)

    create = next(params for operation, params in port.calls if operation == "create_artifact_from_plan")
    assert create["plan"] == valid_plan(version=1)["plan"]
    inspect = [params for operation, params in port.calls if operation == "inspect_artifact"][-1]
    assert inspect == {"artifact_id": "report", "version": 2}
    assert saved.ref == ArtifactRef("report", 2)
    assert str(saved.workflow.output[0].target) == "value"