/* 
Copyright 2015 Hardcoded Software (http://www.hardcoded.net)

This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
which should be included with this package. The terms are also available at 
http://www.gnu.org/licenses/gpl-3.0.html
*/

#import <Cocoa/Cocoa.h>
#import <Python.h>
#import <wchar.h>
#import <locale.h>

int main(int argc, char *argv[])
{
    /* We have to set the locate to UTF8 for mbstowcs() to correctly convert non-ascii chars in paths */
    setlocale(LC_ALL, "en_US.UTF-8");
    NSString *respath = [[NSBundle mainBundle] resourcePath];
    NSString *mainpy = [respath stringByAppendingPathComponent:@"dg_cocoa.py"];
    wchar_t wPythonPath[PATH_MAX+1];
    NSString *pypath = [respath stringByAppendingPathComponent:@"py"];
    mbstowcs(wPythonPath, [pypath fileSystemRepresentation], PATH_MAX+1);
    Py_SetPath(wPythonPath);
    Py_SetPythonHome(wPythonPath);
    Py_Initialize();
    PyGILState_STATE gilState = PyGILState_Ensure();
    /* This main gets called when multiprocessing spawns new threads.  To
       prevent this from opening more windows and not working correctly we
       are just checking main here and not running the file.  Should be able
       to block on the python side of things but checking
       __name__ == "__main__" did not seem to work in the one location I tried.
     */
    if ([NSThread isMainThread]) {
        FILE* fp = fopen([mainpy UTF8String], "r");
        PyRun_SimpleFile(fp, [mainpy UTF8String]);
        fclose(fp);
    }
    PyGILState_Release(gilState);
    if (gilState == PyGILState_LOCKED) {
        PyThreadState_Swap(NULL);
        PyEval_ReleaseLock();
    }
    int result = NSApplicationMain(argc,  (const char **) argv);
    Py_Finalize();
    return result;
}