/*
 * Copyright (C) by Daniel Molkentin <danimo@owncloud.com>
 *
 * 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.
 */

#include "cocoainitializer.h"

#import <Foundation/NSAutoreleasePool.h>
#import <AppKit/NSApplication.h>

#include "application.h"

/* In theory, we should be able to just capture QFileOpenEvents
 * when we open our custom URLs in our Application class and be
 * done with it, but in practice the QFileOpenEvent often doesn't
 * get sent for our URLs. We have this in place to work around
 * the issue.
 *
 * This class sets a callback selector on URL-related events
 * before the application is fully done launching. This lets us
 * properly receive and process "open url" events even if the
 * client was closed when these events were sent. */

@interface URLEventHandler : NSObject
@end

@implementation URLEventHandler
- (id)init {
    self = [super init];

    if (self) {
        NSNotificationCenter* defaultCenter = [NSNotificationCenter defaultCenter];
        [defaultCenter addObserver:self
                        selector:@selector(applicationWillFinishLaunching:)
                        name:NSApplicationWillFinishLaunchingNotification
                        object:nil];
    }
    return self;
}

- (void)applicationWillFinishLaunching:(NSNotification *)aNotification {
    [[NSAppleEventManager sharedAppleEventManager] setEventHandler:self
                                                       andSelector:@selector(handleURLEvent:withReplyEvent:)
                                                     forEventClass:kInternetEventClass
                                                        andEventID:kAEGetURL];
}

- (void)handleURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
{
    NSURL* url = [NSURL URLWithString:[[event paramDescriptorForKeyword:keyDirectObject] stringValue]];
    const auto app = qobject_cast<OCC::Application *>(QApplication::instance());
    const auto qtUrl = QUrl::fromNSURL(url);
    app->handleEditLocally(qtUrl);
}

@end

namespace OCC {
namespace Mac {

class CocoaInitializer::Private {
public:
    NSAutoreleasePool* autoReleasePool;
    URLEventHandler* handler;
};

CocoaInitializer::CocoaInitializer() {
    d = new CocoaInitializer::Private();
    d->handler = [[URLEventHandler alloc] init];
    NSApplicationLoad();
    d->autoReleasePool = [[NSAutoreleasePool alloc] init];
}

CocoaInitializer::~CocoaInitializer() {
    [d->autoReleasePool release];
    delete d;
}

} // namespace Mac
} // namespace OCC