From 784577ebb995eed5663f3bd416ba9b0db29a3334 Mon Sep 17 00:00:00 2001
From: Rico Tiongson <thericotiongson@gmail.com>
Date: Sat, 2 Mar 2019 10:47:34 +0800
Subject: [PATCH] Add working initial python porting definition for
 comfortable-swipe

---
 comfortable-swipe.cpp        |  6 +++
 comfortable-swipe.python.cpp | 82 ++++++++++++++++++++++++++++++++++++
 setup.py                     | 29 +++++++------
 3 files changed, 105 insertions(+), 12 deletions(-)
 create mode 100644 comfortable-swipe.python.cpp

diff --git a/comfortable-swipe.cpp b/comfortable-swipe.cpp
index 65359b5..590b4a2 100644
--- a/comfortable-swipe.cpp
+++ b/comfortable-swipe.cpp
@@ -21,6 +21,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <string> // std::string
 #include "lib/comfortable_swipe"
 
+/* A FORWARD DECLARATION */
+int main(int argc, char** args);
+
+/* Import python module here */
+#include "comfortable-swipe.python.cpp"
+
 /* MAIN DRIVER FUNCTION */
 
 int main(int argc, char** args)
diff --git a/comfortable-swipe.python.cpp b/comfortable-swipe.python.cpp
new file mode 100644
index 0000000..31dd3ea
--- /dev/null
+++ b/comfortable-swipe.python.cpp
@@ -0,0 +1,82 @@
+/*
+Comfortable Swipe
+by Rico Tiongson
+
+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 3 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 <http://www.gnu.org/licenses/>.
+*/
+
+/* Porting to Python */
+#ifdef __COMFORTABLE_SWIPE__PYTHON__
+#ifndef __COMFORTABLE_SWIPE__PYTHON_MAIN__
+#define __COMFORTABLE_SWIPE__PYTHON_MAIN__
+
+#include <iostream>
+#include <Python.h>
+
+// some useful readable macros
+// http://python3porting.com/cextensions.html
+#if PY_MAJOR_VERSION >= 3
+  #define MOD_ERROR_VAL NULL
+  #define MOD_SUCCESS_VAL(val) val
+  #define MOD_INIT(name) PyMODINIT_FUNC PyInit_##name(void)
+  #define MOD_DEF(ob, name, doc, methods) \
+          static struct PyModuleDef moduledef = { \
+            PyModuleDef_HEAD_INIT, name, doc, -1, methods, }; \
+          ob = PyModule_Create(&moduledef);
+#else
+  #define MOD_ERROR_VAL
+  #define MOD_SUCCESS_VAL(val)
+  #define MOD_INIT(name) void init##name(void)
+  #define MOD_DEF(ob, name, doc, methods) \
+          ob = Py_InitModule3(name, methods, doc);
+#endif /* PY_MAJOR_VERSION >= 3 */
+
+static PyObject *
+test(PyObject * self, PyObject * args, PyObject * kwargs)
+{
+    std::puts("TESTING FUNCTION");
+    Py_RETURN_NONE;
+}
+
+
+// python module methods
+static PyMethodDef comfortable_swipe_methods[] = {
+    /* The cast of the function is necessary since PyCFunction values
+     * only take two PyObject* parameters, and test() takes
+     * three.
+     */
+    {
+        "test",
+        (PyCFunction) test,
+        METH_VARARGS | METH_KEYWORDS,
+        "Test"
+    },
+    {NULL, NULL, 0, NULL}   /* sentinel */
+};
+
+// how the python module is defined
+MOD_INIT(comfortable_swipe)
+{
+    PyObject *m;
+
+    MOD_DEF(m, "comfortable_swipe", "Comfortable swipe", comfortable_swipe_methods);
+
+    if (m == NULL)
+        return MOD_ERROR_VAL;
+
+    return MOD_SUCCESS_VAL(m);
+}
+
+#endif /* __COMFORTABLE_SWIPE__PYTHON_MAIN__ */
+#endif /* __COMFORTABLE_SWIPE__PYTHON__ */
\ No newline at end of file
diff --git a/setup.py b/setup.py
index fec3eb1..91a4bb3 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,5 @@
 import os
-from setuptools import setup
+from setuptools import setup, find_packages
 from setuptools.extension import Extension
 
 __CWD__ = os.getcwd()
@@ -11,6 +11,16 @@ VERSION = '1.1.0'
 PROGRAM = os.path.join('/usr/local/bin', NAME)
 CONFIG = os.path.join(PROGRAM, 'comfortable-swipe.conf')
 
+# for C++ library
+cpp_sources = ['comfortable-swipe.cpp']
+cpp_macros = dict(
+    __COMFORTABLE_SWIPE__PYTHON__='',
+    __COMFORTABLE_SWIPE__PYTHON_MODULE_NAME__='"{}"'.format(NAME.replace('-', '_')),
+    __COMFORTABLE_SWIPE__PROGRAM__='"{}"'.format(PROGRAM),
+    __COMFORTABLE_SWIPE__VERSION__='"{}"'.format(VERSION),
+    __COMFORTABLE_SWIPE__CONFIG__='"{}"'.format(CONFIG)
+)
+
 try:
     # make sure working directory is here
     os.chdir(__DIR__)
@@ -23,20 +33,13 @@ try:
     with open('LICENSE', 'r') as LICENSE_file:
         LICENSE = LICENSE_file.read()
 
-    # have a dictionary of macros
-    macros = dict(
-        __COMFORTABLE_SWIPE__PROGRAM__=f'"{PROGRAM}"',
-        __COMFORTABLE_SWIPE__VERSION__=f'"{VERSION}"',
-        __COMFORTABLE_SWIPE__CONFIG__=f'"{CONFIG}"'
-    )
-
     # read C++ library for comfortable swipe
     comfortable_swipe = Extension(
-        name='comfortable_swipe',
-        define_macros=list(macros.items()),
+        name=NAME.replace('-', '_'),
+        define_macros=list(cpp_macros.items()),
         libraries=['xdo'],
         include_dirs=['/usr/local/lib'],
-        sources=['comfortable-swipe.cpp'],
+        sources=cpp_sources,
         extra_compile_args=['-O2', '-Wno-unused-result']
 
     )
@@ -52,9 +55,11 @@ try:
         author_email='thericotiongson@gmail.com',
         url=__URL__,
         # import external modules (aka. C++)
-        ext_modules=[comfortable_swipe],
+        packages=find_packages(),
+        ext_modules=[comfortable_swipe]
     )
 
+
 finally:
     # move working directory back to where it was before
     os.chdir(__DIR__)