import pytest

from ai_typewriter.config import (
    ConfigError,
    ConfigStore,
    Profile,
    load_config,
    math_latex_profile,
)


def test_store_creates_defaults_when_missing(tmp_path):
    path = tmp_path / "nested" / "config.json"
    store = ConfigStore(path)
    store.ensure_defaults()

    assert path.exists()
    assert len(store.profiles) == 2
    names = [p.name for p in store.profiles]
    assert "Général" in names
    assert math_latex_profile().name in names
    store.load()
    assert store.active_name in names


def test_default_math_profile_enables_equation_markers():
    p = math_latex_profile()
    assert p.equation_enabled is True
    assert p.eq_start_marker == "[EQ]"
    assert p.eq_end_marker == "[/EQ]"
    assert p.eq_start_key == "alt+="
    assert p.eq_end_key == "right"
    assert "[EQ]" in p.effective_prompt()


def test_crud_upsert_set_active_and_remove(tmp_path):
    path = tmp_path / "config.json"
    store = ConfigStore(path)
    store.ensure_defaults()
    store.load()

    names_before = len(store.get_all())
    prof = math_latex_profile(name="MaesProfil")
    store.upsert(prof)
    store.set_active("MaesProfil")
    assert store.active().name == "MaesProfil"
    assert len(store.get_all()) == names_before + 1

    prof2 = Profile(name="MaesProfil", provider="openai", model="gpt-4o-mini")
    store.upsert(prof2)
    assert store.get("MaesProfil").provider == "openai"

    store.remove("MaesProfil")
    with pytest.raises(KeyError):
        store.get("MaesProfil")


def test_remove_last_profile_blocked(tmp_path):
    store = ConfigStore(tmp_path / "config.json")
    store.ensure_defaults()
    store.load()
    # Il y a 2 profils par défaut : le premier retrait réussit…
    store.remove(store.get_all()[0].name)
    assert len(store.get_all()) == 1
    # …mais retirer le dernier est interdit.
    with pytest.raises(ConfigError):
        store.remove(store.get_all()[0].name)


def test_set_active_unknown_raises(tmp_path):
    store = ConfigStore(tmp_path / "config.json")
    store.ensure_defaults()
    store.load()
    with pytest.raises(KeyError):
        store.set_active("inexistant")


def test_load_config_return_store(tmp_path):
    store = load_config(str(tmp_path / "config.json"))
    assert isinstance(store, ConfigStore)