import asyncio
import importlib
import sys

from omnivoice.utils.voice_design import _INSTRUCT_VALID_EN

from backend.voice_design import VOICE_DESIGN_OPTIONS
from backend.voice_presets import VOICE_PRESETS


def test_voice_presets_match_their_scriptorium_descriptions() -> None:
    assert VOICE_PRESETS == [
        {
            "id": "the-archivist",
            "name": "The Archivist",
            "desc": "Voice design preset · elderly monk · low pitch · british accent",
            "initial": "A",
            "instruct": "male, elderly, low pitch, british accent",
        },
        {
            "id": "the-novice",
            "name": "The Novice",
            "desc": "Voice design preset · young sister · moderate pitch · british accent",
            "initial": "N",
            "instruct": "female, young adult, moderate pitch, british accent",
        },
        {
            "id": "the-warden",
            "name": "The Warden",
            "desc": "Voice design preset · stern keeper · very low pitch · american accent",
            "initial": "W",
            "instruct": "male, middle-aged, very low pitch, american accent",
        },
        {
            "id": "the-illuminator",
            "name": "The Illuminator",
            "desc": "Voice design preset · bright scholar · high pitch · canadian accent",
            "initial": "I",
            "instruct": "female, middle-aged, high pitch, canadian accent",
        },
    ]


def test_voice_presets_use_only_supported_omnivoice_design_tokens() -> None:
    for preset in VOICE_PRESETS:
        instruct = preset["instruct"]
        parts = [part.strip().lower() for part in instruct.split(",")]
        assert all(parts), f"Preset {preset['id']} contains an empty instruct token"
        assert all(
            part in _INSTRUCT_VALID_EN for part in parts
        ), f"Preset {preset['id']} has unsupported instruct tokens: {instruct}"


def test_homepage_injects_voice_presets_for_frontend() -> None:
    sys.modules.pop("app", None)
    module = importlib.import_module("app")

    response = asyncio.run(module.homepage())
    html = response.body.decode("utf-8")

    assert "window.__VOICE_PRESETS__" in html
    assert "window.__VOICE_DESIGN_OPTIONS__" in html
    assert "window.__MAGPIE_OPTIONS__" in html
    assert "window.__SYNTHESIS_BACKENDS__" in html


def test_voice_design_options_use_only_supported_omnivoice_design_tokens() -> None:
    option_values = [
        option["value"]
        for category in VOICE_DESIGN_OPTIONS
        for option in category["options"]
    ]
    assert option_values
    assert all(value in _INSTRUCT_VALID_EN for value in option_values)