#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2007  Donald N. Allingham
# Copyright (C) 2007-2008  Brian G. Matherly
# Copyright (C) 2011       Tim G L Lyons
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, see <https://www.gnu.org/licenses/>.
#
#

"""
Display references for any object
"""

from gramps.gen.simple import SimpleAccess, SimpleDoc
from gramps.gui.plug.quick import QuickTable
from gramps.gen.const import GRAMPS_LOCALE as glocale

_ = glocale.translation.gettext


def get_ref(db, objclass, handle):
    """
    Looks up object in database
    """
    if objclass == "Person":
        ref = db.get_person_from_handle(handle)
    elif objclass == "Family":
        ref = db.get_family_from_handle(handle)
    elif objclass == "Event":
        ref = db.get_event_from_handle(handle)
    elif objclass == "Source":
        ref = db.get_source_from_handle(handle)
    elif objclass == "Citation":
        ref = db.get_citation_from_handle(handle)
    elif objclass == "Place":
        ref = db.get_place_from_handle(handle)
    elif objclass == "Note":
        ref = db.get_note_from_handle(handle)
    elif objclass == "Media":
        ref = db.get_media_from_handle(handle)
    else:
        ref = objclass
    return ref


def run(database, document, object, item, trans):
    """
    Display back-references for this object.
    """

    # setup the simple access functions
    sdb = SimpleAccess(database)
    sdoc = SimpleDoc(document)
    stab = QuickTable(sdb)

    # display the title
    sdoc.title(_("References for this %s") % trans)
    sdoc.paragraph("\n")
    stab.columns(_("Type"), _("Reference"))
    for objclass, handle in database.find_backlink_handles(object.handle):
        ref = get_ref(database, objclass, handle)
        stab.row(_(objclass), ref)  # translation are explicit (above)

    if stab.get_row_count() > 0:
        document.has_data = True
        stab.write(sdoc)
    else:
        document.has_data = False
        sdoc.paragraph(_("No references for this %s") % trans)
        sdoc.paragraph("")
    sdoc.paragraph("")


# functions for the actual quickreports
run_person = lambda db, doc, obj: run(db, doc, obj, "person", _("Person"))
run_family = lambda db, doc, obj: run(db, doc, obj, "family", _("Family"))
run_event = lambda db, doc, obj: run(db, doc, obj, "event", _("Event"))
run_source = lambda db, doc, obj: run(db, doc, obj, "source", _("Source"))
run_citation = lambda db, doc, obj: run(db, doc, obj, "citation", _("Citation"))
run_source_or_citation = lambda db, doc, obj: run(
    db, doc, obj, "source or citation", _("Source or Citation")
)
run_place = lambda db, doc, obj: run(db, doc, obj, "place", _("Place"))
run_media = lambda db, doc, obj: run(db, doc, obj, "media", _("Media"))
run_note = lambda db, doc, obj: run(db, doc, obj, "note", _("Note"))
