import json
from pathlib import Path

import pytest

from browser_cli.client import BrowserNotConnected, _resolve_socket

def test_resolve_socket_raises_when_registry_missing(monkeypatch):
    monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)
    monkeypatch.setattr("browser_cli.client.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json"))

    with pytest.raises(BrowserNotConnected, match="Cannot resolve a browser socket automatically"):
        _resolve_socket()

def test_resolve_socket_uses_only_active_registry_entry(monkeypatch, tmp_path):
    monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)

    socket_path = tmp_path / "browser.sock"
    socket_path.write_text("")
    registry_path = tmp_path / "registry.json"
    registry_path.write_text(json.dumps({"abc-uuid": str(socket_path)}))

    monkeypatch.setattr("browser_cli.client.REGISTRY_PATH", registry_path)

    assert _resolve_socket() == str(socket_path)

def test_resolve_socket_raises_when_multiple_active_entries(monkeypatch, tmp_path):
    monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)

    first_socket = tmp_path / "one.sock"
    second_socket = tmp_path / "two.sock"
    first_socket.write_text("")
    second_socket.write_text("")
    registry_path = tmp_path / "registry.json"
    registry_path.write_text(json.dumps({"uuid-1": str(first_socket), "uuid-2": str(second_socket)}))

    monkeypatch.setattr("browser_cli.client.REGISTRY_PATH", registry_path)

    with pytest.raises(BrowserNotConnected, match="Multiple browser instances are active: uuid-1, uuid-2"):
        _resolve_socket()