import json
import xml

import pytest

from grobid_tei_xml.grobid2json import teixml2json, transform_grobid_ref_xml


def test_small_xml() -> None:

    with open('tests/files/small.xml', 'r') as f:
        tei_xml = f.read()
    with open('tests/files/small.json', 'r') as f:
        json_form = json.loads(f.read())

    assert teixml2json(tei_xml) == json_form


def test_invalid_xml() -> None:

    with pytest.raises(xml.etree.ElementTree.ParseError):
        teixml2json("this is not XML")
    with pytest.raises(ValueError):
        teixml2json("<xml></xml>")


def test_grobid_teixml2json() -> None:

    with open("tests/files/example_grobid.tei.xml", "r") as f:
        blob = f.read()

    obj = teixml2json(blob, True)

    assert obj[
        "title"] == """Changes of patients' satisfaction with the health care services in Lithuanian Health Promoting Hospitals network"""

    ref = [c for c in obj["citations"] if c["id"] == "b12"][0]
    assert ref["authors"][0] == {"given_name": "K", "name": "K Tasa", "surname": "Tasa"}
    assert ref["journal"] == "Quality Management in Health Care"
    assert ref["title"] == "Using patient feedback for quality improvement"
    assert ref["date"] == "1996"
    assert ref["pages"] == "206-225"
    assert ref["volume"] == "8"
    assert ref["unstructured"] == \
        """Tasa K, Baker R, Murray M. Using patient feedback for qua- lity improvement. Quality Management in Health Care 1996;8:206-19."""


def test_transform_grobid_ref_xml() -> None:
    citation_xml = """
<biblStruct >
    <analytic>
        <title level="a" type="main">Mesh migration following abdominal hernia repair: a comprehensive review</title>
        <author>
            <persName
                xmlns="http://www.tei-c.org/ns/1.0">
                <forename type="first">H</forename>
                <forename type="middle">B</forename>
                <surname>Cunningham</surname>
            </persName>
        </author>
        <author>
            <persName
                xmlns="http://www.tei-c.org/ns/1.0">
                <forename type="first">J</forename>
                <forename type="middle">J</forename>
                <surname>Weis</surname>
            </persName>
        </author>
        <author>
            <persName
                xmlns="http://www.tei-c.org/ns/1.0">
                <forename type="first">L</forename>
                <forename type="middle">R</forename>
                <surname>Taveras</surname>
            </persName>
        </author>
        <author>
            <persName
                xmlns="http://www.tei-c.org/ns/1.0">
                <forename type="first">S</forename>
                <surname>Huerta</surname>
            </persName>
        </author>
        <idno type="DOI">10.1007/s10029-019-01898-9</idno>
        <idno type="PMID">30701369</idno>
    </analytic>
    <monogr>
        <title level="j">Hernia</title>
        <imprint>
            <biblScope unit="volume">23</biblScope>
            <biblScope unit="issue">2</biblScope>
            <biblScope unit="page" from="235" to="243" />
            <date type="published" when="2019-01-30" />
        </imprint>
    </monogr>
</biblStruct>"""

    d = transform_grobid_ref_xml(citation_xml)
    assert d
    assert d['title'] == \
        "Mesh migration following abdominal hernia repair: a comprehensive review"
    assert d['authors'][2]['given_name'] == "L"
    assert d['authors'][2]['surname'] == "Taveras"
    assert d['authors'][2]['name'] == "L R Taveras"
    assert d['doi'] == "10.1007/s10029-019-01898-9"
    assert d['pmid'] == "30701369"
    assert d['date'] == "2019-01-30"
    assert d['pages'] == "235-243"
    assert d['volume'] == "23"
    assert d['issue'] == "2"
    assert d['journal'] == "Hernia"