import pytest

from app.config import Settings
from app.errors import ConfigError


def test_defaults():
    s = Settings(_env_file=None)
    assert s.comfy_base_url == "http://192.168.0.3:8188"
    assert s.execution_timeout == 300.0
    assert s.poll_interval == 1.5
    assert s.models_file.name == "models.json"


def test_env_override(monkeypatch):
    monkeypatch.setenv("COMFY_BASE_URL", "http://example:9000")
    monkeypatch.setenv("ADAPTER_API_KEY", "sk-abc")
    monkeypatch.setenv("EXECUTION_TIMEOUT", "42")
    monkeypatch.setenv("POLL_INTERVAL", "0.5")
    s = Settings(_env_file=None)
    assert s.comfy_base_url == "http://example:9000"
    assert s.adapter_api_key == "sk-abc"
    assert s.execution_timeout == 42.0
    assert s.poll_interval == 0.5


def test_registry_loads_shipped_in_order():
    s = Settings(_env_file=None)
    registry = s.load_registry()
    # order preserved (first = preferred for default selection)
    assert list(registry) == ["z-image-turbo", "qwen-image-edit"]
    assert registry["z-image-turbo"].workflow.name == "z_image_turbo.json"
    assert registry["z-image-turbo"].owned_by == "comfy-adapter"


def test_registry_missing_file_fails_fast(tmp_path):
    s = Settings(_env_file=None, models_file=tmp_path / "nope.json")
    with pytest.raises(ConfigError, match="not found"):
        s.load_registry()


def test_registry_malformed_json_fails_fast(tmp_path):
    f = tmp_path / "models.json"
    f.write_text("{not valid", encoding="utf-8")
    s = Settings(_env_file=None, models_file=f)
    with pytest.raises(ConfigError, match="not valid JSON"):
        s.load_registry()


def test_registry_empty_fails_fast(tmp_path):
    f = tmp_path / "models.json"
    f.write_text("{}", encoding="utf-8")
    s = Settings(_env_file=None, models_file=f)
    with pytest.raises(ConfigError, match="non-empty"):
        s.load_registry()


def test_registry_bad_entry_fails_fast(tmp_path):
    f = tmp_path / "models.json"
    f.write_text('{"m": {"not_workflow": "x.json"}}', encoding="utf-8")
    s = Settings(_env_file=None, models_file=f)
    with pytest.raises(ConfigError, match="invalid entry"):
        s.load_registry()