import json
import sys
from pathlib import Path

_HERE = Path(__file__).resolve().parents[2]
if str(_HERE) not in sys.path:
    sys.path.insert(0, str(_HERE))

from app import (
    _DEFAULT_FLOW_NAME_SLUGS,
    _default_window_geometry,
    _flow_name_for_mode,
    _format_geometry,
    _format_live_action,
    _merge_current_live_action,
)
import artifacts as art
import target
import user_prefs


def test_default_geometry_is_narrow_tall_and_leaves_title_bar_clear() -> None:
    width, height, x, y = _default_window_geometry((0, 0, 1920, 1040))

    assert (width, height) == (576, 951)
    assert (x, y) == (1328, 73)
    assert y >= 64
    assert x + width == 1920 - 16


def test_default_geometry_supports_small_and_left_side_monitors() -> None:
    width, height, x, y = _default_window_geometry(
        (-1366, 0, 0, 728), side="left"
    )

    assert (width, height) == (560, 648)
    assert (x, y) == (-1350, 64)
    assert _format_geometry(width, height, x, y) == "560x648-1350+64"


def test_flow_name_defaults_follow_pick_mode() -> None:
    assert _flow_name_for_mode(target.SURFACE_BROWSER) == "browser"
    assert _flow_name_for_mode(target.SURFACE_WINDOWS) == "desktop"
    assert _flow_name_for_mode(target.SURFACE_ANDROID) == "mobile"
    assert _DEFAULT_FLOW_NAME_SLUGS == frozenset({"browser", "desktop", "mobile"})


def test_local_ts_is_compact_yyyymmddhhmmss() -> None:
    stamp = art._local_ts()
    assert len(stamp) == 14
    assert stamp.isdigit()
    assert "T" not in stamp
    assert "+" not in stamp


def test_create_flow_dir_uses_compact_timestamp(tmp_path: Path) -> None:
    flow_dir = art.create_flow(tmp_path, flow_name="browser")
    name = flow_dir.name
    assert name.endswith("_browser")
    stamp = name[: -len("_browser")]
    assert len(stamp) == 14
    assert stamp.isdigit()


def test_hidden_legacy_recording_preference_migrates_to_auto(
    tmp_path: Path, monkeypatch
) -> None:
    prefs_path = tmp_path / "user_prefs.json"
    prefs_path.write_text(
        json.dumps(
            {
                "mode": "browser",
                "start_url": "https://example.com",
                "recording_mode": "legacy_interval",
            }
        ),
        encoding="utf-8",
    )
    monkeypatch.setattr(user_prefs, "_PREFS_PATH", prefs_path)

    assert user_prefs.load_prefs()["recording_mode"] == "auto"


def test_live_action_formatter_is_surface_neutral_and_two_phase() -> None:
    text = _format_live_action(
        {
            "sequence": 3,
            "action_type": "click",
            "phase": "captured",
            "surface": "browser",
            "target_name": "提交",
            "target_type": "button",
        }
    )
    assert "#3 点击" in text
    assert "browser" in text
    assert "证据采集中" in text
    assert "等待异步证据" in text


def test_current_live_action_overwrites_without_allowing_late_evidence_to_regress() -> None:
    first = {"id": "action-1", "sequence": 1, "phase": "captured"}
    first_evidence = {"id": "action-1", "sequence": 1, "phase": "evidence"}
    second = {"id": "action-2", "sequence": 2, "phase": "captured"}

    current = _merge_current_live_action(None, first)
    current = _merge_current_live_action(current, first_evidence)
    assert current == first_evidence

    current = _merge_current_live_action(current, second)
    assert current == second

    current = _merge_current_live_action(current, first_evidence)
    assert current == second


def test_current_live_action_ignores_updates_without_an_action_id() -> None:
    current = {"id": "action-2", "sequence": 2, "phase": "captured"}

    assert _merge_current_live_action(current, {"sequence": 3}) is current