"""Dashboards over HTTP: saving one, which is also how the first one is made."""

from fastapi.testclient import TestClient

from fluksio.core.config import settings

PREFIX = f"{settings.API_V1_STR}/dashboards"


def a_dashboard(name: str) -> dict:
    return {
        "name": name,
        "title": "Hall",
        "icon": "gauge",
        "widgets": [
            {
                "id": "temperature",
                "type": "stat",
                "title": "Temperature",
                "layout": {"lg": {"x": 0, "y": 0, "w": 3, "h": 2}},
                "config": {"message": "house.temperature", "dtype": "float"},
            }
        ],
        "settings": {"theme": {"value": "dark", "message": "", "dtype": "str"}},
        "version": 0,
    }


def test_a_save_creates_a_dashboard_that_does_not_exist_yet(
    client: TestClient, superuser_token_headers: dict[str, str]
) -> None:
    """A first draft, not a 404: creating one *is* saving it at version 0."""
    body = a_dashboard("put_creates")

    response = client.put(
        f"{PREFIX}/put_creates", headers=superuser_token_headers, json=body
    )

    assert response.status_code == 200, response.text
    saved = response.json()
    assert saved["version"] == 1 and saved["has_draft"] is True
    # A draft alone: nothing was published, so no panel can be shown it.
    assert (
        client.get(f"{PREFIX}/put_creates", headers=superuser_token_headers).status_code
        == 404
    )
    draft = client.get(
        f"{PREFIX}/put_creates?draft=true", headers=superuser_token_headers
    )
    assert draft.json()["widgets"] == body["widgets"]


def test_a_save_of_an_existing_dashboard_keeps_what_it_did_not_change(
    client: TestClient, superuser_token_headers: dict[str, str]
) -> None:
    seeded = a_dashboard("put_updates")
    first = client.put(
        f"{PREFIX}/put_updates", headers=superuser_token_headers, json=seeded
    ).json()

    renamed = {**first, "widgets": [{**first["widgets"][0], "title": "Outside"}]}
    second = client.put(
        f"{PREFIX}/put_updates", headers=superuser_token_headers, json=renamed
    )

    assert second.status_code == 200, second.text
    stored = second.json()
    assert stored["version"] == first["version"] + 1
    assert stored["widgets"][0]["title"] == "Outside"
    # Everything the edit did not name is still what was first written.
    assert stored["icon"] == seeded["icon"]
    assert stored["settings"] == seeded["settings"]
    assert stored["widgets"][0]["layout"] == seeded["widgets"][0]["layout"]
    assert stored["widgets"][0]["config"] == seeded["widgets"][0]["config"]


def test_a_save_based_on_a_version_someone_moved_past_is_refused(
    client: TestClient, superuser_token_headers: dict[str, str]
) -> None:
    body = a_dashboard("put_conflicts")
    client.put(f"{PREFIX}/put_conflicts", headers=superuser_token_headers, json=body)

    stale = client.put(
        f"{PREFIX}/put_conflicts", headers=superuser_token_headers, json=body
    )

    assert stale.status_code == 409
    assert stale.json()["detail"]["current_version"] == 1