import re
from gmirator.generate import (
    process_file,
    process_list,
    process_inline,
    repl_url,
    repl_heading
)


def test_process_file():
    pass

def test_process_list_legit_item():
    test_str = "* this is a list item"
    assert process_list(test_str, True) == (f"<li>{test_str[2:]}</li>", True)
    assert process_list(test_str, False) == (f"<ul>\n<li>{test_str[2:]}</li>", True)

def test_process_list_not_list_items():
    test_str = "this is a line outside a list"
    assert process_list(test_str, True) == (f"</ul>\n\n{test_str}", False)
    assert process_list(test_str, False) == (test_str, False)
    test_str = "*this is NOT a list item*"
    assert process_list(test_str, True) == (f"</ul>\n\n{test_str}", False)
    assert process_list(test_str, False) == (f"{test_str}", False)

def test_process_list_empty_line():
    assert process_list("", True) == ("</ul>\n\n", False)
    assert process_list("", False) == ("", False)

def test_process_inline():
    assert process_inline("*Hello* ~~world~~!") == "<em>Hello</em> <s>world</s>!"

def test_repl_url_external_gmi_url():
    external_url = "=> gemini://domain/gempage.gmi\n"
    new_url = re.sub(r'^=> (?P<url>[^ ]*) ?(?P<text>.*)\n', repl_url, external_url)
    assert new_url == '<a href="gemini://domain/gempage.gmi">=> gemini://domain/gempage.gmi</a><br>\n'

def test_repl_url_internal_gmi_url():
    external_url = "=> /gempage.gmi title\n"
    new_url = re.sub(r'^=> (?P<url>[^ ]*) ?(?P<text>.*)\n', repl_url, external_url)
    assert new_url == '<a href="/gempage.html">=> title</a><br>\n'

def test_repl_heading():
    line = "# this is h1 title"
    html_h1 = re.sub(r'^(#+) (.*)', repl_heading, line)
    line = "## this is h2 title"
    html_h2 = re.sub(r'^(#+) (.*)', repl_heading, line)
    line = "### this is h3 title"
    html_h3 = re.sub(r'^(#+) (.*)', repl_heading, line)
    assert html_h1 == "<h1># this is h1 title</h1>"
    assert html_h2 == "<h2>## this is h2 title</h2>"
    assert html_h3 == "<h3>### this is h3 title</h3>"

def test_repl_heading_h4():
    line = "#### this is h4 title"
    html_h4 = re.sub(r'^(#+) (.*)', repl_heading, line)
    assert html_h4 == "<h4>#### this is h4 title</h4>"