# tests/plugins/host_agent/test_agent_config.py
"""Unit tests for the agent's homegrown config parser."""
import pytest
from plugins.host_agent.agent import read_config, ConfigError


def test_parses_flat_key_value(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text(
        "url = https://roundtable.example\n"
        "token = abc123\n"
        "interval_seconds = 45\n"
    )
    cfg = read_config(str(p))
    assert cfg["url"] == "https://roundtable.example"
    assert cfg["token"] == "abc123"
    assert cfg["interval_seconds"] == 45


def test_ignores_blank_lines_and_comments(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text(
        "# top comment\n"
        "\n"
        "url = https://x\n"
        "  # indented comment\n"
        "token = t\n"
    )
    cfg = read_config(str(p))
    # interval_seconds defaults to 30 when unset
    assert cfg["url"] == "https://x"
    assert cfg["token"] == "t"


def test_parses_mounts_as_list(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text("url = x\ntoken = y\nmounts = /, /mnt/data, /srv\n")
    cfg = read_config(str(p))
    assert cfg["mounts"] == ["/", "/mnt/data", "/srv"]


def test_missing_required_fields_raises(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text("url = https://x\n")
    with pytest.raises(ConfigError, match="token"):
        read_config(str(p))


def test_malformed_line_raises(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text("url https://x\ntoken = y\n")
    with pytest.raises(ConfigError):
        read_config(str(p))


def test_default_interval_seconds(tmp_path):
    p = tmp_path / "agent.conf"
    p.write_text("url = x\ntoken = y\n")
    cfg = read_config(str(p))
    assert cfg["interval_seconds"] == 30