# -*- coding: utf-8 -*-
""" invenio_tools.base

"""
import re

ARXIV = "arXiv"
ARXIV_PDF = "http://arxiv.org/pdf/"

MSG_NO_CONF = "Reject no conference information"
MSG_NO_THESIS = "Reject no thesis information"

OAI_URL = "http://%s/record/%s"

REG_ARXIV_NUMBER = re.compile("\d+\.\d+")

# name are encoded Family, L
#                  Family, P L
#                  Family, M -H
#                  Family Name, J
#                  Family-Name, J
#                  Family, F Name
#                  Family, First
# To avoid to deal with unicode character
# look for non empty string \S
REG_AUTHOR = re.compile(r"(.+), (\S+)( |\-)*(\S+)*")

REG_OAI = re.compile(r"oai:([a-z\.]+):([\d]+)")
REG_YEAR = re.compile(r"(\d{4})")

THESIS_DIR = u"dir."


def is_conference(record):
    """True when the record describes a publication related to a conference.

    Args:
        record (Record):

    Return:
        bool: true when the MARC record describes a publication related
              to a conference.

    """
    if u"111" in record:
        return True

    # try with the conference key
    # the location of this values depends on the store
    # cds.cern.ch (962, n) and inspirehep.net (773,w).
    if record.host().startswith("cds"):
        field, subfield = u"962", "n"
    else:
        field, subfield = u"773", "w"

    return len(record._get(field, subfield)) > 0


def is_institute(record):
    """True when the record describes an institute.

    Args:
        record (Record):

    Return:
        bool: true when the MARC record describes an institute

    """
    # u'980': [
    #    {'b': [u'CK90', u'HEP200', u'PDGLIST', u'PPF', u'TOP500', u'WEB']},
    #    {'a': u'INSTITUTION'},
    #    {'a': u'CORE'}
    # ]
    if u"980" in record:

        if isinstance(record[u"980"], list):
            for di in record[u"980"]:
                for k, v in di.iteritems():
                    if k == "a" and v == u"INSTITUTION":
                        return True

        elif isinstance(record[u"980"], dict) and "a" in record[u"980"] and \
                record[u"980"]["a"] == u"INSTITUTION":
                return True

    return False


def is_thesis(record):
    """True when the record describes a thesis.

    Args:
        record (Record):

    Return:
        bool: true when the MARC record describes a thesis

    """
    li = record._get(u"980", "a", force_list=True)
    val = ", ".join(li)
    return 'THESIS' in val