from ctypes import c_byte

from django.contrib.gis.geos.libgeos import GEOM_PTR, PREPGEOM_PTR, GEOSFuncFactory
from django.contrib.gis.geos.prototypes.errcheck import check_predicate

# Prepared geometry constructor and destructors.
geos_prepare = GEOSFuncFactory("GEOSPrepare", argtypes=[GEOM_PTR], restype=PREPGEOM_PTR)
prepared_destroy = GEOSFuncFactory("GEOSPreparedGeom_destroy", argtypes=[PREPGEOM_PTR])


# Prepared geometry binary predicate support.
class PreparedPredicate(GEOSFuncFactory):
    argtypes = [PREPGEOM_PTR, GEOM_PTR]
    restype = c_byte
    errcheck = staticmethod(check_predicate)


prepared_contains = PreparedPredicate("GEOSPreparedContains")
prepared_contains_properly = PreparedPredicate("GEOSPreparedContainsProperly")
prepared_covers = PreparedPredicate("GEOSPreparedCovers")
prepared_crosses = PreparedPredicate("GEOSPreparedCrosses")
prepared_disjoint = PreparedPredicate("GEOSPreparedDisjoint")
prepared_intersects = PreparedPredicate("GEOSPreparedIntersects")
prepared_overlaps = PreparedPredicate("GEOSPreparedOverlaps")
prepared_touches = PreparedPredicate("GEOSPreparedTouches")
prepared_within = PreparedPredicate("GEOSPreparedWithin")