"""Provide common test tools."""

from __future__ import annotations

from functools import cache
import json
from typing import Any
from unittest.mock import MagicMock

from matter_server.client.models.node import MatterNode
from matter_server.common.helpers.util import dataclass_from_dict
from matter_server.common.models import EventType, MatterNodeData
from syrupy import SnapshotAssertion

from homeassistant.const import Platform
from homeassistant.core import HomeAssistant
from homeassistant.helpers import entity_registry as er

from tests.common import MockConfigEntry, load_fixture


@cache
def load_node_fixture(fixture: str) -> str:
    """Load a fixture."""
    return load_fixture(f"matter/nodes/{fixture}.json")


def load_and_parse_node_fixture(fixture: str) -> dict[str, Any]:
    """Load and parse a node fixture."""
    return json.loads(load_node_fixture(fixture))


async def setup_integration_with_node_fixture(
    hass: HomeAssistant,
    node_fixture: str,
    client: MagicMock,
    override_attributes: dict[str, Any] | None = None,
) -> MatterNode:
    """Set up Matter integration with fixture as node."""
    node = create_node_from_fixture(node_fixture, override_attributes)
    client.get_nodes.return_value = [node]
    client.get_node.return_value = node
    config_entry = MockConfigEntry(
        domain="matter", data={"url": "http://mock-matter-server-url"}
    )
    config_entry.add_to_hass(hass)

    assert await hass.config_entries.async_setup(config_entry.entry_id)
    await hass.async_block_till_done()

    return node


def create_node_from_fixture(
    node_fixture: str, override_attributes: dict[str, Any] | None = None
) -> MatterNode:
    """Create a node from a fixture."""
    node_data = load_and_parse_node_fixture(node_fixture)
    if override_attributes:
        node_data["attributes"].update(override_attributes)
    return MatterNode(
        dataclass_from_dict(
            MatterNodeData,
            node_data,
        )
    )


def set_node_attribute(
    node: MatterNode,
    endpoint: int,
    cluster_id: int,
    attribute_id: int,
    value: Any,
) -> None:
    """Set a node attribute."""
    attribute_path = f"{endpoint}/{cluster_id}/{attribute_id}"
    node.endpoints[endpoint].set_attribute_value(attribute_path, value)


async def trigger_subscription_callback(
    hass: HomeAssistant,
    client: MagicMock,
    event: EventType = EventType.ATTRIBUTE_UPDATED,
    data: Any = None,
) -> None:
    """Trigger a subscription callback."""
    # trigger callback on all subscribers
    for sub in client.subscribe_events.call_args_list:
        callback = sub.kwargs["callback"]
        event_filter = sub.kwargs.get("event_filter")
        if event_filter in (None, event):
            callback(event, data)
    await hass.async_block_till_done()


def snapshot_matter_entities(
    hass: HomeAssistant,
    entity_registry: er.EntityRegistry,
    snapshot: SnapshotAssertion,
    platform: Platform,
) -> None:
    """Snapshot Matter entities."""
    entities = hass.states.async_all(platform)
    for entity_state in entities:
        entity_entry = entity_registry.async_get(entity_state.entity_id)
        assert entity_entry == snapshot(name=f"{entity_entry.entity_id}-entry")
        assert entity_state == snapshot(name=f"{entity_entry.entity_id}-state")