from pathlib import Path

from linkki_poster.cli import apply_language_order, load_config, load_config_strict
from linkki_poster.models import Language, LanguageAssets


def test_load_config_strict_reads_required_fields(tmp_path: Path) -> None:
    config_path = tmp_path / "telegram_config.json"
    config_path.write_text('{"bot_token":"token","chat_id":"-100123"}', encoding="utf-8")

    config = load_config_strict(tmp_path)

    assert config.bot_token == "token"
    assert config.chat_id == "-100123"
    assert config.channel_username == ""


def test_load_config_strict_fails_when_missing(tmp_path: Path) -> None:
    try:
        load_config_strict(tmp_path)
    except FileNotFoundError:
        return
    raise AssertionError("Expected FileNotFoundError")


def test_load_config_strict_fails_when_required_field_missing(tmp_path: Path) -> None:
    config_path = tmp_path / "telegram_config.json"
    config_path.write_text('{"bot_token":"token"}', encoding="utf-8")

    try:
        load_config_strict(tmp_path)
    except ValueError:
        return
    raise AssertionError("Expected ValueError")


def test_apply_language_order_uses_requested_prefix_and_keeps_rest(tmp_path: Path) -> None:
    fi = LanguageAssets(Language.FI, tmp_path / "fi.md", "fi", [])
    sv = LanguageAssets(Language.SV, tmp_path / "sv.md", "sv", [])
    en = LanguageAssets(Language.EN, tmp_path / "en.md", "en", [])

    ordered = apply_language_order([fi, sv, en], "en,fi")

    assert [item.language for item in ordered] == [Language.EN, Language.FI, Language.SV]


def test_load_config_interactive_prompts_missing_values(tmp_path: Path) -> None:
    answers = iter(["token_from_prompt", "-100123", "publicname"])
    config = load_config(tmp_path, non_interactive=False, input_fn=lambda _: next(answers))

    assert config.bot_token == "token_from_prompt"
    assert config.chat_id == "-100123"
    assert config.channel_username == "publicname"