"""Tests for dom.* commands (require an http/https active tab)."""
import pytest
from browser_cli.client import send_command


def test_dom_query_body(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    elements = browser("dom.query", {"selector": "body"})
    assert isinstance(elements, list)
    assert len(elements) == 1
    assert elements[0]["tag"] == "body"


def test_dom_query_multiple(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    # Every HTML page has at least one element
    elements = browser("dom.query", {"selector": "*"})
    assert isinstance(elements, list)
    assert len(elements) > 1


def test_dom_query_no_match(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    elements = browser("dom.query", {"selector": "#zzz_no_such_element_zzz"})
    assert isinstance(elements, list)
    assert len(elements) == 0


def test_dom_exists_true(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    result = browser("dom.exists", {"selector": "html"})
    assert result is True


def test_dom_exists_false(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    result = browser("dom.exists", {"selector": "#zzz_no_such_element_zzz"})
    assert result is False


def test_dom_text_body(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    texts = browser("dom.text", {"selector": "body"})
    assert isinstance(texts, list)
    assert len(texts) > 0
    assert isinstance(texts[0], str)
    assert len(texts[0]) > 0


def test_dom_attr_returns_list(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    # Get href of all anchor tags — page may or may not have any
    hrefs = browser("dom.attr", {"selector": "a", "attr": "href"})
    assert isinstance(hrefs, list)


def test_dom_attr_html_lang(browser, http_tab):
    browser("tabs.active", {"tabId": http_tab["id"]})
    langs = browser("dom.attr", {"selector": "html", "attr": "lang"})
    assert isinstance(langs, list)
    # html element exists so we get exactly one entry (may be empty string if no lang attr)
    assert len(langs) <= 1