import pytest
from jianda_proxy.config import (
    get_config_dir,
    get_config_path,
    get_pid_path,
    get_log_path,
    load_config,
    set_config_value,
    get_config_value,
    list_config,
)

FIXTURES = {
    "remote_domain": "git.zz.com",
    "upstream_host": "62.234.191.215",
    "upstream_port": "3000",
    "listen_port": "13000",
    "listen_host": "127.0.0.1",
}


class TestConfigDir:
    def test_returns_path_with_app_name(self, tmp_path, monkeypatch):
        monkeypatch.setenv("HOME", str(tmp_path))
        result = get_config_dir()
        assert "jianda-proxy" in result

    def test_windows_uses_appdata(self, tmp_path, monkeypatch):
        monkeypatch.setenv("APPDATA", str(tmp_path))
        monkeypatch.delenv("HOME", raising=False)
        monkeypatch.delenv("XDG_CONFIG_HOME", raising=False)
        result = get_config_dir()
        assert "jianda-proxy" in result


class TestConfigCRUD:
    def test_load_creates_default_config(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        config = load_config()
        for key, val in FIXTURES.items():
            assert config.get("proxy", key) == val

    def test_load_creates_config_file(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        load_config()
        assert (tmp_path / "config.ini").exists()

    def test_set_and_get_value(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        set_config_value("listen_port", "8080")
        assert get_config_value("listen_port") == "8080"

    def test_set_unknown_key_raises(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        with pytest.raises(ValueError, match="Unknown config key"):
            set_config_value("nonexistent_key", "value")

    def test_list_config(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        load_config()
        result = list_config()
        assert isinstance(result, dict)
        for key, val in FIXTURES.items():
            assert result[key] == val


class TestPaths:
    def test_config_path(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        assert get_config_path().endswith("config.ini")

    def test_pid_path(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        assert get_pid_path().endswith("daemon.pid")

    def test_log_path(self, tmp_path, monkeypatch):
        monkeypatch.setattr("jianda_proxy.config.get_config_dir", lambda: str(tmp_path))
        assert get_log_path().endswith("proxy.log")