from gcode.ui.detect import CONHOST_HINT, detect_terminal, resolve_ui_mode


def test_windows_terminal_by_session() -> None:
    info = detect_terminal(env={"WT_SESSION": "abc"}, parent_name="")
    assert info.tui_ok
    assert info.host == "windows-terminal"


def test_vscode_term_program() -> None:
    info = detect_terminal(env={"TERM_PROGRAM": "vscode"}, parent_name="unknown")
    assert info.tui_ok


def test_conhost_cmd() -> None:
    info = detect_terminal(env={}, parent_name="cmd.exe")
    assert not info.tui_ok
    assert info.host == "conhost"


def test_auto_falls_back_to_repl() -> None:
    info = detect_terminal(env={}, parent_name="cmd.exe")
    mode, warning = resolve_ui_mode("auto", info)
    assert mode == "repl"
    assert "Windows Terminal" in warning
    assert warning == CONHOST_HINT


def test_force_tui_on_conhost_refused() -> None:
    info = detect_terminal(env={}, parent_name="cmd.exe")
    mode, warning = resolve_ui_mode("tui", info)
    assert mode == "refuse"
    assert "repl" in warning.lower() or "Windows Terminal" in warning


def test_force_repl_always() -> None:
    info = detect_terminal(env={"WT_SESSION": "1"}, parent_name="WindowsTerminal.exe")
    mode, warning = resolve_ui_mode("repl", info)
    assert mode == "repl"
    assert warning == ""