"""Tests for configuration module."""

from tuimble.config import (
    AudioConfig, Config, PttConfig, ServerConfig,
    _load_section, load_config,
)


def test_default_config():
    cfg = Config()
    assert cfg.server.host == "localhost"
    assert cfg.server.port == 64738
    assert cfg.audio.sample_rate == 48000
    assert cfg.ptt.mode == "toggle"


def test_server_config():
    srv = ServerConfig(host="mumble.example.com", port=12345)
    assert srv.host == "mumble.example.com"
    assert srv.port == 12345


def test_ptt_config_defaults():
    ptt = PttConfig()
    assert ptt.key == "f4"
    assert ptt.backend == "auto"


def test_audio_gain_defaults():
    acfg = AudioConfig()
    assert acfg.input_gain == 1.0
    assert acfg.output_gain == 1.0


def test_audio_gain_custom():
    acfg = AudioConfig(input_gain=0.5, output_gain=1.5)
    assert acfg.input_gain == 0.5
    assert acfg.output_gain == 1.5


def test_server_cert_defaults():
    srv = ServerConfig()
    assert srv.certfile == ""
    assert srv.keyfile == ""


def test_server_cert_custom():
    srv = ServerConfig(certfile="/path/cert.pem", keyfile="/path/key.pem")
    assert srv.certfile == "/path/cert.pem"
    assert srv.keyfile == "/path/key.pem"


# -- _load_section tests -----------------------------------------------------


def test_load_section_filters_unknown_keys():
    """Unknown keys are silently dropped, valid keys are kept."""
    result = _load_section(ServerConfig, {
        "host": "example.com",
        "typo_field": "oops",
        "another_bad": 42,
    })
    assert result.host == "example.com"
    assert result.port == 64738  # default preserved


def test_load_section_empty_dict():
    result = _load_section(PttConfig, {})
    assert result.key == "f4"
    assert result.mode == "toggle"


def test_load_section_all_valid():
    result = _load_section(PttConfig, {"key": "space", "mode": "hold"})
    assert result.key == "space"
    assert result.mode == "hold"


def test_load_config_missing_file(tmp_path):
    """Missing config file returns defaults."""
    cfg = load_config(tmp_path / "nonexistent.toml")
    assert cfg.server.host == "localhost"


def test_load_config_with_unknown_keys(tmp_path):
    """Config file with unknown keys loads without error."""
    toml = tmp_path / "config.toml"
    toml.write_text(
        '[server]\nhost = "example.com"\nbogus = true\n'
        '[ptt]\nfuture_option = "x"\n'
    )
    cfg = load_config(toml)
    assert cfg.server.host == "example.com"
    assert cfg.ptt.key == "f4"  # default, not overwritten