from __future__ import annotations

import pytest

from driver._w3c_actions import (
    build_double_tap_actions,
    build_swipe_actions,
)


def test_build_swipe_actions_shape_and_duration_split():
    actions = build_swipe_actions([(0, 0), (50, 10), (100, 0)], 600)
    assert len(actions) == 1
    pointer = actions[0]
    assert pointer["type"] == "pointer"
    assert pointer["id"] == "finger1"
    assert pointer["parameters"]["pointerType"] == "touch"
    seq = pointer["actions"]
    types = [a["type"] for a in seq]
    assert types == [
        "pointerMove",
        "pointerDown",
        "pointerMove",
        "pointerMove",
        "pointerUp",
    ]
    # 600ms over 2 segments => 300ms per move after pointerDown
    moves_after_down = [a for a in seq if a["type"] == "pointerMove"][1:]
    assert all(m["duration"] == 300 for m in moves_after_down)
    assert seq[0]["x"] == 0 and seq[0]["y"] == 0
    assert seq[-1]["x"] == 100 and seq[-1]["y"] == 0


def test_build_swipe_actions_requires_two_waypoints():
    with pytest.raises(ValueError):
        build_swipe_actions([(1, 1)], 100)


def test_build_double_tap_actions_shape():
    actions = build_double_tap_actions(10, 20, interval_ms=80)
    seq = actions[0]["actions"]
    types = [a["type"] for a in seq]
    assert types == [
        "pointerMove",
        "pointerDown",
        "pointerUp",
        "pause",
        "pointerDown",
        "pointerUp",
    ]
    pause = next(a for a in seq if a["type"] == "pause")
    assert pause["duration"] == 80
    assert seq[0]["x"] == 10 and seq[0]["y"] == 20