"""Unit tests for bar_commands: drink-name parsing and menu persistence.

The unit CI job installs only pytest, so bar_commands' heavy imports (discord,
ai_functions -> openai/tiktoken, communication_subroutine -> flask) are stubbed
only when genuinely absent - locally the real packages are used.
"""
import sys
import types


def _stub_if_missing(name, build):
    if name in sys.modules:
        return
    try:
        __import__(name)
    except ImportError:
        sys.modules[name] = build()


def _build_discord():
    mod = types.ModuleType("discord")

    class Object:
        def __init__(self, id=None):  # noqa: A002 - mirrors discord.Object
            self.id = id

    mod.Object = Object
    ext = types.ModuleType("discord.ext")
    commands = types.ModuleType("discord.ext.commands")

    class Cog:
        pass

    def hybrid_command(**_kwargs):
        return lambda fn: fn

    commands.Cog = Cog
    commands.hybrid_command = hybrid_command
    ext.commands = commands
    mod.ext = ext
    sys.modules["discord.ext"] = ext
    sys.modules["discord.ext.commands"] = commands
    return mod


def _build_ai_functions():
    mod = types.ModuleType("ai_functions")

    async def handle_response(*_a, **_k):
        return ("stub", [])

    mod.handle_response = handle_response
    return mod


def _build_comm():
    mod = types.ModuleType("communication_subroutine")
    mod.PREPPED_TRACKS = {"now_playing": ""}
    return mod


_stub_if_missing("discord", _build_discord)
_stub_if_missing("ai_functions", _build_ai_functions)
_stub_if_missing("communication_subroutine", _build_comm)

import bar_commands  # noqa: E402  (after stubbing)


def test_extract_name_strips_markers_and_markdown():
    assert bar_commands._extract_name("🍸 Krew Wilka\nskładniki...") == "Krew Wilka"
    assert bar_commands._extract_name("**Miód Odyna**\nfoo") == "Miód Odyna"
    assert bar_commands._extract_name("1. Cichy Grom\nbar") == "Cichy Grom"
    assert bar_commands._extract_name("\n\n   Ostatni Skald  \nx") == "Ostatni Skald"


def test_extract_name_fallback_on_empty():
    assert bar_commands._extract_name("") == "Bezimienny drink"
    assert bar_commands._extract_name("\n   \n") == "Bezimienny drink"


def test_menu_round_trip(tmp_path, monkeypatch):
    menu_file = tmp_path / "menu.json"
    monkeypatch.setattr(bar_commands, "MENU_FILE", str(menu_file))

    assert bar_commands._load_menu() == []  # missing file -> empty

    bar_commands._append_menu({"nazwa": "Krew Wilka", "autor": "Hammer"})
    bar_commands._append_menu({"nazwa": "Miód Odyna", "autor": "Siara"})

    menu = bar_commands._load_menu()
    assert [d["nazwa"] for d in menu] == ["Krew Wilka", "Miód Odyna"]


def test_load_menu_survives_corrupt_file(tmp_path, monkeypatch):
    menu_file = tmp_path / "menu.json"
    menu_file.write_text("{ not json", encoding="utf-8")
    monkeypatch.setattr(bar_commands, "MENU_FILE", str(menu_file))
    assert bar_commands._load_menu() == []