#import <IOKit/hidsystem/ev_keymap.h>
#import <AppKit/NSEvent.h>

#import <AppKit/NSApplication.h>

#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSBundle.h>
#import <Foundation/NSTimer.h>
#import <Foundation/NSURL.h>
#import <AppKit/NSNibDeclarations.h>
#import <Sparkle/SUUpdater.h>

#import <Kernel/AvailabilityMacros.h>

#include "config.h"
#include "globalshortcuts.h"
#include "mac_startup.h"
#include "macglobalshortcutbackend.h"

#include <QCoreApplication>
#include <QEvent>

#include <QtDebug>

// Capture global media keys on Mac (Cocoa only!)
// See: http://www.rogueamoeba.com/utm/2007/09/29/apple-keyboard-media-key-event-handling/

@interface MacApplication :NSApplication {
  MacGlobalShortcutBackend* shortcut_handler_;
  PlatformInterface* application_handler_;
}

- (MacGlobalShortcutBackend*) shortcut_handler;
- (void) SetShortcutHandler: (MacGlobalShortcutBackend*)handler;

- (PlatformInterface*) application_handler;
- (void) SetApplicationHandler: (PlatformInterface*)handler;

- (void) mediaKeyEvent: (int)key state: (BOOL)state repeat: (BOOL)repeat;
@end

#ifdef SNOW_LEOPARD
@interface AppDelegate :NSObject <NSApplicationDelegate> {
#else
@interface AppDelegate :NSObject {
#endif
  PlatformInterface* application_handler_;
  NSMenu* dock_menu_;
}

- (id) initWithHandler: (PlatformInterface*)handler;
// NSApplicationDelegate
- (BOOL) applicationShouldHandleReopen: (NSApplication*)app hasVisibleWindows:(BOOL)flag;
- (NSMenu*) applicationDockMenu: (NSApplication*)sender;
- (void) setDockMenu: (NSMenu*)menu;
@end

@implementation AppDelegate

- (id) init {
  if ((self = [super init])) {
    application_handler_ = nil;
    dock_menu_ = nil;
  }
  return self;
}

- (id) initWithHandler: (PlatformInterface*)handler {
  application_handler_ = handler;
  return self;
}

- (BOOL) applicationShouldHandleReopen: (NSApplication*)app hasVisibleWindows:(BOOL)flag {
  if (application_handler_) {
    application_handler_->Activate();
  }
  return YES;
}

- (void) setDockMenu: (NSMenu*)menu {
  dock_menu_ = menu;
}

- (NSMenu*) applicationDockMenu: (NSApplication*)sender {
  return dock_menu_;
}

- (BOOL) application: (NSApplication*)app openFile:(NSString*)filename {
  qDebug() << "Wants to open:" << [filename UTF8String];

  if (application_handler_->LoadUrl(QString::fromUtf8([filename UTF8String]))) {
    return YES;
  }

  return NO;
}
@end

@implementation MacApplication

- (id) init {
  if ((self = [super init])) {
    [self SetShortcutHandler:nil];
    [self SetApplicationHandler:nil];
  }
  return self;
}

- (MacGlobalShortcutBackend*) shortcut_handler {
  return shortcut_handler_;
}

- (void) SetShortcutHandler: (MacGlobalShortcutBackend*)handler {
  shortcut_handler_ = handler;
}

- (PlatformInterface*) application_handler {
  return application_handler_;
}

- (void) SetApplicationHandler: (PlatformInterface*)handler {
  AppDelegate* delegate = [[AppDelegate alloc] initWithHandler:handler];
  [self setDelegate:delegate];
}

-(void) sendEvent: (NSEvent*)event {
  if ([event type] == NSSystemDefined && [event subtype] == 8) {
    int keycode = (([event data1] & 0xFFFF0000) >> 16);
    int keyflags = ([event data1] & 0x0000FFFF);
    int keystate = (((keyflags & 0xFF00) >> 8)) == 0xA;
    int keyrepeat = (keyflags & 0x1);

    [self mediaKeyEvent: keycode state: keystate repeat: keyrepeat];
  }

  [super sendEvent: event];
}

-(void) mediaKeyEvent: (int)key state: (BOOL)state repeat: (BOOL)repeat {
  if (!shortcut_handler_) {
    return;
  }
  if (state == 0) {
    shortcut_handler_->MacMediaKeyPressed(key);
  }
}

@end

namespace mac {

void MacMain() {
  [[NSAutoreleasePool alloc] init];
  // Creates and sets the magic global variable so QApplication will find it.
  [MacApplication sharedApplication];
  // Creates and sets the magic global variable for Sparkle.
  [[SUUpdater sharedUpdater] setDelegate: NSApp];
}

void SetShortcutHandler(MacGlobalShortcutBackend* handler) {
  [NSApp SetShortcutHandler: handler];
}

void SetApplicationHandler(PlatformInterface* handler) {
  [NSApp SetApplicationHandler: handler];
}

void CheckForUpdates() {
  [[SUUpdater sharedUpdater] checkForUpdates: NSApp];
}

QString GetBundlePath() {
  CFURLRef app_url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
  CFStringRef mac_path = CFURLCopyFileSystemPath(app_url, kCFURLPOSIXPathStyle);
  const char* path = CFStringGetCStringPtr(mac_path, CFStringGetSystemEncoding());
  QString bundle_path = QString::fromUtf8(path);
  CFRelease(app_url);
  CFRelease(mac_path);
  return bundle_path;
}

QString GetResourcesPath() {
  QString bundle_path = GetBundlePath();
  return bundle_path + "/Contents/Resources";
}

}  // namespace mac