/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file source/blender/freestyle/intern/python/BPy_UnaryPredicate0D.cpp
 *  \ingroup freestyle
 */

#include "BPy_UnaryPredicate0D.h"

#include "BPy_Convert.h"
#include "Iterator/BPy_Interface0DIterator.h"
#include "UnaryPredicate0D/BPy_FalseUP0D.h"
#include "UnaryPredicate0D/BPy_TrueUP0D.h"

#ifdef __cplusplus
extern "C" {
#endif

///////////////////////////////////////////////////////////////////////////////////////////

//-------------------MODULE INITIALIZATION--------------------------------
int UnaryPredicate0D_Init(PyObject *module)
{
	if (module == NULL)
		return -1;

	if (PyType_Ready(&UnaryPredicate0D_Type) < 0)
		return -1;
	Py_INCREF(&UnaryPredicate0D_Type);
	PyModule_AddObject(module, "UnaryPredicate0D", (PyObject *)&UnaryPredicate0D_Type);

	if (PyType_Ready(&FalseUP0D_Type) < 0)
		return -1;
	Py_INCREF(&FalseUP0D_Type);
	PyModule_AddObject(module, "FalseUP0D", (PyObject *)&FalseUP0D_Type);

	if (PyType_Ready(&TrueUP0D_Type) < 0)
		return -1;
	Py_INCREF(&TrueUP0D_Type);
	PyModule_AddObject(module, "TrueUP0D", (PyObject *)&TrueUP0D_Type);

	return 0;
}

//------------------------INSTANCE METHODS ----------------------------------

static char UnaryPredicate0D___doc__[] =
"Base class for unary predicates that work on\n"
":class:`Interface0DIterator`.  A UnaryPredicate0D is a functor that\n"
"evaluates a condition on an Interface0DIterator and returns true or\n"
"false depending on whether this condition is satisfied or not.  The\n"
"UnaryPredicate0D is used by invoking its __call__() method.  Any\n"
"inherited class must overload the __call__() method.\n"
"\n"
".. method:: __init__()\n"
"\n"
"   Default constructor.\n"
"\n"
".. method:: __call__(it)\n"
"\n"
"   Must be overload by inherited classes.\n"
"\n"
"   :arg it: The Interface0DIterator pointing onto the Interface0D at\n"
"      which we wish to evaluate the predicate.\n"
"   :type it: :class:`Interface0DIterator`\n"
"   :return: True if the condition is satisfied, false otherwise.\n"
"   :rtype: bool\n";

static int UnaryPredicate0D___init__(BPy_UnaryPredicate0D *self, PyObject *args, PyObject *kwds)
{
	static const char *kwlist[] = {NULL};

	if (!PyArg_ParseTupleAndKeywords(args, kwds, "", (char **)kwlist))
		return -1;
	self->up0D = new UnaryPredicate0D();
	self->up0D->py_up0D = (PyObject *)self;
	return 0;
}

static void UnaryPredicate0D___dealloc__(BPy_UnaryPredicate0D *self)
{
	if (self->up0D)
		delete self->up0D;
	Py_TYPE(self)->tp_free((PyObject *)self);
}

static PyObject *UnaryPredicate0D___repr__(BPy_UnaryPredicate0D *self)
{
	return PyUnicode_FromFormat("type: %s - address: %p", Py_TYPE(self)->tp_name, self->up0D);
}

static PyObject *UnaryPredicate0D___call__(BPy_UnaryPredicate0D *self, PyObject *args, PyObject *kwds)
{
	static const char *kwlist[] = {"it", NULL};
	PyObject *py_if0D_it;

	if (!PyArg_ParseTupleAndKeywords(args, kwds, "O!", (char **)kwlist, &Interface0DIterator_Type, &py_if0D_it))
		return NULL;

	Interface0DIterator *if0D_it = ((BPy_Interface0DIterator *)py_if0D_it)->if0D_it;

	if (!if0D_it) {
		string class_name(Py_TYPE(self)->tp_name);
		PyErr_SetString(PyExc_RuntimeError, (class_name + " has no Interface0DIterator").c_str());
		return NULL;
	}
	if (typeid(*(self->up0D)) == typeid(UnaryPredicate0D)) {
		PyErr_SetString(PyExc_TypeError, "__call__ method not properly overridden");
		return NULL;
	}
	if (self->up0D->operator()(*if0D_it) < 0) {
		if (!PyErr_Occurred()) {
			string class_name(Py_TYPE(self)->tp_name);
			PyErr_SetString(PyExc_RuntimeError, (class_name + " __call__ method failed").c_str());
		}
		return NULL;
	}
	return PyBool_from_bool(self->up0D->result);
}

/*----------------------UnaryPredicate0D get/setters ----------------------------*/

PyDoc_STRVAR(UnaryPredicate0D_name_doc,
"The name of the unary 0D predicate.\n"
"\n"
":type: str");

static PyObject *UnaryPredicate0D_name_get(BPy_UnaryPredicate0D *self, void *UNUSED(closure))
{
	return PyUnicode_FromString(Py_TYPE(self)->tp_name);
}

static PyGetSetDef BPy_UnaryPredicate0D_getseters[] = {
	{(char *)"name", (getter)UnaryPredicate0D_name_get, (setter)NULL, (char *)UnaryPredicate0D_name_doc, NULL},
	{NULL, NULL, NULL, NULL, NULL}  /* Sentinel */
};

/*-----------------------BPy_UnaryPredicate0D type definition ------------------------------*/

PyTypeObject UnaryPredicate0D_Type = {
	PyVarObject_HEAD_INIT(NULL, 0)
	"UnaryPredicate0D",             /* tp_name */
	sizeof(BPy_UnaryPredicate0D),   /* tp_basicsize */
	0,                              /* tp_itemsize */
	(destructor)UnaryPredicate0D___dealloc__, /* tp_dealloc */
	0,                              /* tp_print */
	0,                              /* tp_getattr */
	0,                              /* tp_setattr */
	0,                              /* tp_reserved */
	(reprfunc)UnaryPredicate0D___repr__, /* tp_repr */
	0,                              /* tp_as_number */
	0,                              /* tp_as_sequence */
	0,                              /* tp_as_mapping */
	0,                              /* tp_hash  */
	(ternaryfunc)UnaryPredicate0D___call__, /* tp_call */
	0,                              /* tp_str */
	0,                              /* tp_getattro */
	0,                              /* tp_setattro */
	0,                              /* tp_as_buffer */
	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
	UnaryPredicate0D___doc__,       /* tp_doc */
	0,                              /* tp_traverse */
	0,                              /* tp_clear */
	0,                              /* tp_richcompare */
	0,                              /* tp_weaklistoffset */
	0,                              /* tp_iter */
	0,                              /* tp_iternext */
	0,                              /* tp_methods */
	0,                              /* tp_members */
	BPy_UnaryPredicate0D_getseters, /* tp_getset */
	0,                              /* tp_base */
	0,                              /* tp_dict */
	0,                              /* tp_descr_get */
	0,                              /* tp_descr_set */
	0,                              /* tp_dictoffset */
	(initproc)UnaryPredicate0D___init__, /* tp_init */
	0,                              /* tp_alloc */
	PyType_GenericNew,              /* tp_new */
};

///////////////////////////////////////////////////////////////////////////////////////////

#ifdef __cplusplus
}
#endif
