/*************************************************************************/
/*  app_delegate.mm                                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#import "app_delegate.h"

#include "core/global_config.h"
#import "gl_view.h"
#include "main/main.h"
#include "os_iphone.h"

#ifdef MODULE_FACEBOOKSCORER_IOS_ENABLED
#include "modules/FacebookScorer_ios/FacebookScorer.h"
#endif

#ifdef MODULE_GAME_ANALYTICS_ENABLED
#import "modules/game_analytics/ios/MobileAppTracker.framework/Headers/MobileAppTracker.h"
//#import "modules/game_analytics/ios/MobileAppTracker.h"
#import <AdSupport/AdSupport.h>
#endif

#ifdef MODULE_PARSE_ENABLED
#import "FBSDKCoreKit/FBSDKCoreKit.h"
#import <Parse/Parse.h>
#endif

#define kFilteringFactor 0.1
#define kRenderingFrequency 60
#define kAccelerometerFrequency 100.0 // Hz

Error _shell_open(String);
void _set_keep_screen_on(bool p_enabled);

Error _shell_open(String p_uri) {
	NSString *url = [[NSString alloc] initWithUTF8String:p_uri.utf8().get_data()];

	if (![[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:url]])
		return ERR_CANT_OPEN;

	printf("opening url %ls\n", p_uri.c_str());
	[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
	[url release];
	return OK;
};

void _set_keep_screen_on(bool p_enabled) {
	[[UIApplication sharedApplication] setIdleTimerDisabled:(BOOL)p_enabled];
};

@implementation AppDelegate

@synthesize window;

extern int gargc;
extern char **gargv;
extern int iphone_main(int, int, int, char **);
extern void iphone_finish();

CMMotionManager *motionManager;
bool motionInitialised;

static ViewController *mainViewController = nil;
+ (ViewController *)getViewController {
	return mainViewController;
}

static int frame_count = 0;
- (void)drawView:(GLView *)view;
{

	switch (frame_count) {
		case 0: {
			int backingWidth;
			int backingHeight;
			glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
			glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);

			OS::VideoMode vm;
			vm.fullscreen = true;
			vm.width = backingWidth;
			vm.height = backingHeight;
			vm.resizable = false;
			OS::get_singleton()->set_video_mode(vm);

			if (!OS::get_singleton()) {
				exit(0);
			};
			++frame_count;

			NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
			NSString *documentsDirectory = [paths objectAtIndex:0];
			//NSString *documentsDirectory = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
			OSIPhone::get_singleton()->set_data_dir(String::utf8([documentsDirectory UTF8String]));

			NSString *locale_code = [[[NSLocale preferredLanguages] objectAtIndex:0] substringToIndex:2];
			OSIPhone::get_singleton()->set_locale(String::utf8([locale_code UTF8String]));

			NSString *uuid;
			if ([[UIDevice currentDevice] respondsToSelector:@selector(identifierForVendor)]) {
				uuid = [UIDevice currentDevice].identifierForVendor.UUIDString;
			} else {
				// before iOS 6, so just generate an identifier and store it
				uuid = [[NSUserDefaults standardUserDefaults] objectForKey:@"identiferForVendor"];
				if (!uuid) {
					CFUUIDRef cfuuid = CFUUIDCreate(NULL);
					uuid = (__bridge_transfer NSString *)CFUUIDCreateString(NULL, cfuuid);
					CFRelease(cfuuid);
					[[NSUserDefaults standardUserDefaults] setObject:uuid forKey:@"identifierForVendor"];
				}
			}

			OSIPhone::get_singleton()->set_unique_ID(String::utf8([uuid UTF8String]));

		}; break;
		/*
		case 1: {
			++frame_count;
		}; break;
*/
		case 1: {

			Main::setup2();
			++frame_count;

			// this might be necessary before here
			NSDictionary *dict = [[NSBundle mainBundle] infoDictionary];
			for (NSString *key in dict) {
				NSObject *value = [dict objectForKey:key];
				String ukey = String::utf8([key UTF8String]);

				// we need a NSObject to Variant conversor

				if ([value isKindOfClass:[NSString class]]) {
					NSString *str = (NSString *)value;
					String uval = String::utf8([str UTF8String]);

					GlobalConfig::get_singleton()->set("Info.plist/" + ukey, uval);

				} else if ([value isKindOfClass:[NSNumber class]]) {

					NSNumber *n = (NSNumber *)value;
					double dval = [n doubleValue];

					GlobalConfig::get_singleton()->set("Info.plist/" + ukey, dval);
				};
				// do stuff
			}

		}; break;
		/*
		case 3: {
			++frame_count;
		}; break;
*/
		case 2: {

			Main::start();
			++frame_count;

		}; break; // no fallthrough

		default: {
			if (OSIPhone::get_singleton()) {
				//OSIPhone::get_singleton()->update_accelerometer(accel[0], accel[1], accel[2]);
				if (motionInitialised) {
					// Just using polling approach for now, we can set this up so it sends data to us in intervals, might be better.
					// See Apple reference pages for more details:
					// https://developer.apple.com/reference/coremotion/cmmotionmanager?language=objc

					// Apple splits our accelerometer date into a gravity and user movement component. We add them back together
					CMAcceleration gravity = motionManager.deviceMotion.gravity;
					CMAcceleration acceleration = motionManager.deviceMotion.userAcceleration;

					///@TODO We don't seem to be getting data here, is my device broken or is this code incorrect?
					CMMagneticField magnetic = motionManager.deviceMotion.magneticField.field;

					///@TODO we can access rotationRate as a CMRotationRate variable (processed date) or CMGyroData (raw data), have to see what works best
					CMRotationRate rotation = motionManager.deviceMotion.rotationRate;

					// Adjust for screen orientation.
					// [[UIDevice currentDevice] orientation] changes even if we've fixed our orientation which is not
					// a good thing when you're trying to get your user to move the screen in all directions and want consistent output

					///@TODO Using [[UIApplication sharedApplication] statusBarOrientation] is a bit of a hack. Godot obviously knows the orientation so maybe we
					// can use that instead? (note that left and right seem swapped)

					switch ([[UIApplication sharedApplication] statusBarOrientation]) {
						case UIDeviceOrientationLandscapeLeft: {
							OSIPhone::get_singleton()->update_gravity(-gravity.y, gravity.x, gravity.z);
							OSIPhone::get_singleton()->update_accelerometer(-(acceleration.y + gravity.y), (acceleration.x + gravity.x), acceleration.z + gravity.z);
							OSIPhone::get_singleton()->update_magnetometer(-magnetic.y, magnetic.x, magnetic.z);
							OSIPhone::get_singleton()->update_gyroscope(-rotation.y, rotation.x, rotation.z);
						}; break;
						case UIDeviceOrientationLandscapeRight: {
							OSIPhone::get_singleton()->update_gravity(gravity.y, -gravity.x, gravity.z);
							OSIPhone::get_singleton()->update_accelerometer((acceleration.y + gravity.y), -(acceleration.x + gravity.x), acceleration.z + gravity.z);
							OSIPhone::get_singleton()->update_magnetometer(magnetic.y, -magnetic.x, magnetic.z);
							OSIPhone::get_singleton()->update_gyroscope(rotation.y, -rotation.x, rotation.z);
						}; break;
						case UIDeviceOrientationPortraitUpsideDown: {
							OSIPhone::get_singleton()->update_gravity(-gravity.x, gravity.y, gravity.z);
							OSIPhone::get_singleton()->update_accelerometer(-(acceleration.x + gravity.x), (acceleration.y + gravity.y), acceleration.z + gravity.z);
							OSIPhone::get_singleton()->update_magnetometer(-magnetic.x, magnetic.y, magnetic.z);
							OSIPhone::get_singleton()->update_gyroscope(-rotation.x, rotation.y, rotation.z);
						}; break;
						default: { // assume portrait
							OSIPhone::get_singleton()->update_gravity(gravity.x, gravity.y, gravity.z);
							OSIPhone::get_singleton()->update_accelerometer(acceleration.x + gravity.x, acceleration.y + gravity.y, acceleration.z + gravity.z);
							OSIPhone::get_singleton()->update_magnetometer(magnetic.x, magnetic.y, magnetic.z);
							OSIPhone::get_singleton()->update_gyroscope(rotation.x, rotation.y, rotation.z);
						}; break;
					};
				}

				bool quit_request = OSIPhone::get_singleton()->iterate();
			};

		}; break;
	};
};

- (void)applicationDidReceiveMemoryWarning:(UIApplication *)application {

	printf("****************** did receive memory warning!\n");
	OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_OS_MEMORY_WARNING);
};

- (void)applicationDidFinishLaunching:(UIApplication *)application {

	printf("**************** app delegate init\n");
	CGRect rect = [[UIScreen mainScreen] bounds];

	[application setStatusBarHidden:YES withAnimation:UIStatusBarAnimationNone];
	// disable idle timer
	//application.idleTimerDisabled = YES;

	//Create a full-screen window
	window = [[UIWindow alloc] initWithFrame:rect];
	//window.autoresizesSubviews = YES;
	//[window setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleWidth];

	//Create the OpenGL ES view and add it to the window
	GLView *glView = [[GLView alloc] initWithFrame:rect];
	printf("glview is %p\n", glView);
	//[window addSubview:glView];
	glView.delegate = self;
	//glView.autoresizesSubviews = YES;
	//[glView setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleWidth];

	int backingWidth;
	int backingHeight;
	glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
	glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);

	iphone_main(backingWidth, backingHeight, gargc, gargv);

	view_controller = [[ViewController alloc] init];
	view_controller.view = glView;
	window.rootViewController = view_controller;

	_set_keep_screen_on(bool(GLOBAL_DEF("display/keep_screen_on", true)) ? YES : NO);
	glView.useCADisplayLink = bool(GLOBAL_DEF("display.iOS/use_cadisplaylink", true)) ? YES : NO;
	printf("cadisaplylink: %d", glView.useCADisplayLink);
	glView.animationInterval = 1.0 / kRenderingFrequency;
	[glView startAnimation];

	//Show the window
	[window makeKeyAndVisible];

	//Configure and start accelerometer
	if (!motionInitialised) {
		motionManager = [[CMMotionManager alloc] init];
		if (motionManager.deviceMotionAvailable) {
			motionManager.deviceMotionUpdateInterval = 1.0 / 70.0;
			[motionManager startDeviceMotionUpdatesUsingReferenceFrame:CMAttitudeReferenceFrameXMagneticNorthZVertical];
			motionInitialised = YES;
		};
	};

	//OSIPhone::screen_width = rect.size.width - rect.origin.x;
	//OSIPhone::screen_height = rect.size.height - rect.origin.y;

	mainViewController = view_controller;

#ifdef MODULE_GAME_ANALYTICS_ENABLED
	printf("********************* didFinishLaunchingWithOptions\n");
	if (!GlobalConfig::get_singleton()->has("mobileapptracker/advertiser_id")) {
		return;
	}
	if (!GlobalConfig::get_singleton()->has("mobileapptracker/conversion_key")) {
		return;
	}

	String adid = GLOBAL_DEF("mobileapptracker/advertiser_id", "");
	String convkey = GLOBAL_DEF("mobileapptracker/conversion_key", "");

	NSString *advertiser_id = [NSString stringWithUTF8String:adid.utf8().get_data()];
	NSString *conversion_key = [NSString stringWithUTF8String:convkey.utf8().get_data()];

	// Account Configuration info - must be set
	[MobileAppTracker initializeWithMATAdvertiserId:advertiser_id MATConversionKey:conversion_key];

	// Used to pass us the IFA, enables highly accurate 1-to-1 attribution.
	// Required for many advertising networks.
	[MobileAppTracker setAppleAdvertisingIdentifier:[[ASIdentifierManager sharedManager] advertisingIdentifier]
						 advertisingTrackingEnabled:[[ASIdentifierManager sharedManager] isAdvertisingTrackingEnabled]];

#endif
};

- (void)applicationWillTerminate:(UIApplication *)application {

	printf("********************* will terminate\n");

	if (motionInitialised) {
		///@TODO is this the right place to clean this up?
		[motionManager stopDeviceMotionUpdates];
		[motionManager release];
		motionManager = nil;
		motionInitialised = NO;
	};

	iphone_finish();
};

- (void)applicationDidEnterBackground:(UIApplication *)application {
	printf("********************* did enter background\n");
	///@TODO maybe add pause motionManager? and where would we unpause it?

	if (OS::get_singleton()->get_main_loop())
		OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_WM_FOCUS_OUT);

	[view_controller.view stopAnimation];
	if (OS::get_singleton()->native_video_is_playing()) {
		OSIPhone::get_singleton()->native_video_focus_out();
	};
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
	printf("********************* did enter foreground\n");
	//OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_WM_FOCUS_IN);
	[view_controller.view startAnimation];
}

- (void)applicationWillResignActive:(UIApplication *)application {
	printf("********************* will resign active\n");
	//OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_WM_FOCUS_OUT);
	[view_controller.view stopAnimation]; // FIXME: pause seems to be recommended elsewhere
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
	printf("********************* did become active\n");
#ifdef MODULE_GAME_ANALYTICS_ENABLED
	printf("********************* mobile app tracker found\n");
	[MobileAppTracker measureSession];
#endif
	if (OS::get_singleton()->get_main_loop())
		OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_WM_FOCUS_IN);

	[view_controller.view startAnimation]; // FIXME: resume seems to be recommended elsewhere
	if (OSIPhone::get_singleton()->native_video_is_playing()) {
		OSIPhone::get_singleton()->native_video_unpause();
	};
}

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
#ifdef MODULE_FACEBOOKSCORER_IOS_ENABLED
	return [[[FacebookScorer sharedInstance] facebook] handleOpenURL:url];
#else
	return false;
#endif
}

// For 4.2+ support
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
#ifdef MODULE_PARSE_ENABLED
	NSLog(@"Handling application openURL");
	return [[FBSDKApplicationDelegate sharedInstance]
				  application:application
					  openURL:url
			sourceApplication:sourceApplication
				   annotation:annotation];
#endif

#ifdef MODULE_FACEBOOKSCORER_IOS_ENABLED
	return [[[FacebookScorer sharedInstance] facebook] handleOpenURL:url];
#else
	return false;
#endif
}

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
#ifdef MODULE_PARSE_ENABLED
	// Store the deviceToken in the current installation and save it to Parse.
	PFInstallation *currentInstallation = [PFInstallation currentInstallation];
	//NSString* token = [[NSString alloc] initWithData:deviceToken encoding:NSUTF8StringEncoding];
	NSLog(@"Device Token : %@ ", deviceToken);
	[currentInstallation setDeviceTokenFromData:deviceToken];
	[currentInstallation saveInBackground];
#endif
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
#ifdef MODULE_PARSE_ENABLED
	[PFPush handlePush:userInfo];
	NSDictionary *aps = [userInfo objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
	NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

	NSLog(@"Push Notification Payload (app active) %@", aps);
	[defaults setObject:aps forKey:@"notificationInfo"];
	[defaults synchronize];
	if (application.applicationState == UIApplicationStateInactive) {
		[PFAnalytics trackAppOpenedWithRemoteNotificationPayload:userInfo];
	}
#endif
}

- (void)dealloc {
	[window release];
	[super dealloc];
}

@end