# tests/test_config.py
from pathlib import Path

import pytest

from porchlight.config import Settings, StorageBackend


def test_default_settings() -> None:
    settings = Settings(
        issuer="http://localhost:8000",
    )
    assert settings.issuer == "http://localhost:8000"
    assert settings.storage_backend == StorageBackend.SQLITE
    assert settings.sqlite_path == "data/oidc_op.db"
    assert settings.manage_client_id == "manage-app"
    assert settings.invite_ttl == 86400
    assert settings.theme == "default"


def test_mongodb_settings() -> None:
    settings = Settings(
        issuer="http://localhost:8000",
        storage_backend=StorageBackend.MONGODB,
        mongodb_uri="mongodb://mongo:27017",
        mongodb_database="test_db",
    )
    assert settings.storage_backend == StorageBackend.MONGODB
    assert settings.mongodb_uri == "mongodb://mongo:27017"
    assert settings.mongodb_database == "test_db"


def test_default_settings_has_empty_clients() -> None:
    settings = Settings(issuer="http://localhost:8000")
    assert settings.clients == {}


def test_settings_from_env(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("OIDC_OP_ISSUER", "https://op.example.org")
    monkeypatch.setenv("OIDC_OP_STORAGE_BACKEND", "mongodb")
    monkeypatch.setenv("OIDC_OP_MONGODB_URI", "mongodb://remote:27017")
    settings = Settings()
    assert settings.issuer == "https://op.example.org"
    assert settings.storage_backend == StorageBackend.MONGODB


def test_settings_from_toml_file(tmp_path: Path) -> None:
    toml_content = """\
issuer = "https://toml.example.com"
debug = true
sqlite_path = "custom/path.db"

[clients.my-app]
client_secret = "secret123"
redirect_uris = ["https://app.example.com/callback"]
scope = ["openid", "profile"]
"""
    toml_file = tmp_path / "test.toml"
    toml_file.write_text(toml_content)

    settings = Settings(_toml_file=str(toml_file))
    assert settings.issuer == "https://toml.example.com"
    assert settings.debug is True
    assert settings.sqlite_path == "custom/path.db"
    assert "my-app" in settings.clients
    assert settings.clients["my-app"].client_secret == "secret123"
    assert settings.clients["my-app"].redirect_uris == ["https://app.example.com/callback"]
    assert settings.clients["my-app"].scope == ["openid", "profile"]
    assert settings.clients["my-app"].response_types == ["code"]
    assert settings.clients["my-app"].token_endpoint_auth_method == "client_secret_basic"


def test_env_vars_override_toml_values(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    toml_content = """\
issuer = "https://toml.example.com"
debug = false
"""
    toml_file = tmp_path / "test.toml"
    toml_file.write_text(toml_content)

    monkeypatch.setenv("OIDC_OP_ISSUER", "https://env.example.com")
    monkeypatch.setenv("OIDC_OP_DEBUG", "true")
    settings = Settings(_toml_file=str(toml_file))
    assert settings.issuer == "https://env.example.com"
    assert settings.debug is True


def test_missing_toml_file_uses_defaults() -> None:
    settings = Settings(issuer="http://localhost:8000", _toml_file="/nonexistent/path.toml")
    assert settings.issuer == "http://localhost:8000"
    assert settings.clients == {}


def test_config_file_env_var_override(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
    toml_file = tmp_path / "test.toml"
    toml_file.write_text('issuer = "https://custom-path.example.com"\n')

    monkeypatch.setenv("OIDC_OP_CONFIG_FILE", str(toml_file))
    settings = Settings()
    assert settings.issuer == "https://custom-path.example.com"