/// find_app.cc - extracted from the TextMate 2 source - revised by fish2000

#include <unistd.h>
#include <cstdio>
#include <ApplicationServices/ApplicationServices.h>

static char const* const AppVersion = "1.1";

int main(int argc, char const* argv[]) {
    
    if (argc == 2 && std::strncmp("-", argv[1], 1) != 0) {
        CFStringRef bundleID = NULL;
        CFStringRef appName = NULL;
        
        if (std::strstr(argv[1], ".app")) {
            appName = CFStringCreateWithBytes(kCFAllocatorDefault,
                                             (UInt8*)argv[1],
                                              std::strlen(argv[1]),
                                              kCFStringEncodingUTF8, FALSE);
        } else {
            bundleID = CFStringCreateWithBytes(kCFAllocatorDefault,
                                              (UInt8*)argv[1],
                                               std::strlen(argv[1]),
                                               kCFStringEncodingUTF8, FALSE);
        }
        
        CFURLRef url = NULL;
        
        if (noErr == LSFindApplicationForInfo(kLSUnknownCreator, bundleID, appName, NULL, &url)) {
            CFStringRef str = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle);
            
            CFIndex len = CFStringGetLength(str);
            UInt8 buf[4 * len];
            
            CFIndex actualLength = 0;
            if (len == CFStringGetBytes(str,
                                       (CFRange){0, len},
                                       kCFStringEncodingUTF8,
                                       '?', FALSE, buf, sizeof(buf),
                                       &actualLength)) {
                ::write(STDOUT_FILENO, buf, actualLength);
                return 0;
            }
        }
    } else {
        std::fprintf(stderr, "find_app %s: print full path to application\n"
                             "usage: find_app bundle_identifier\n"
                             "       find_app application_name.app\n", AppVersion);
    }
    return 1;
}