import os
from pathlib import Path
from datetime import date
from openvpncertupdate import build_ovpn

def setup_pki(tmp_path, cn, inline_content="<ca>X</ca>"):
    pki = tmp_path / "pki"
    private_dir = pki / "inline" / "private"
    private_dir.mkdir(parents=True)
    (private_dir / f"{cn}.inline").write_text(inline_content)
    return str(pki)

def test_creates_file_with_combined_content(tmp_path):
    pki = setup_pki(tmp_path, "alice", "<ca>CERT</ca>")
    tmpl = tmp_path / "t.ovpn"
    tmpl.write_text("client\ndev tun\n")
    result = build_ovpn("alice", pki, str(tmpl), str(tmp_path / "out"), "vpn.ovpn")
    content = Path(result).read_text()
    assert "client" in content
    assert "CERT" in content

def test_output_path_has_cn_and_date(tmp_path):
    pki = setup_pki(tmp_path, "bob")
    tmpl = tmp_path / "t.ovpn"; tmpl.write_text("")
    today = date.today().strftime("%Y-%m-%d")
    result = build_ovpn("bob", pki, str(tmpl), str(tmp_path / "out"), "vpn.ovpn")
    assert f"bob_{today}" in result
    assert result.endswith("vpn.ovpn")