# coding: utf-8
from __future__ import unicode_literals

from ...matcher import Matcher
from ...attrs import ORTH
from ..util import get_doc


def test_issue615(en_tokenizer):
    def merge_phrases(matcher, doc, i, matches):
        """Merge a phrase. We have to be careful here because we'll change the
        token indices. To avoid problems, merge all the phrases once we're called
        on the last match."""

        if i != len(matches)-1:
            return None
        # Get Span objects
        spans = [(ent_id, label, doc[start : end]) for ent_id, label, start, end in matches]
        for ent_id, label, span in spans:
            span.merge('NNP' if label else span.root.tag_, span.text, doc.vocab.strings[label])

    text = "The golf club is broken"
    pattern = [{ ORTH: "golf"}, { ORTH: "club"}]
    label = "Sport_Equipment"

    tokens = en_tokenizer(text)
    doc = get_doc(tokens.vocab, [t.text for t in tokens])

    matcher = Matcher(doc.vocab)
    matcher.add_entity(label, on_match=merge_phrases)
    matcher.add_pattern(label, pattern, label=label)

    match = matcher(doc)
    entities = list(doc.ents)

    assert entities != [] #assertion 1
    assert entities[0].label != 0 #assertion 2