/****************************************************************************
 Copyright (c) 2010-2012 cocos2d-x.org
 Copyright (c) 2013-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 http://www.cocos2d-x.org

 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.
 ****************************************************************************/
#include "CCApplication.h"
#include "platform/CCDevice.h"
#include "platform/ios/CCEAGLView-ios.h"

// Vibrate
#import <AudioToolbox/AudioToolbox.h>
#include "base/ccTypes.h"
#include "platform/apple/CCDevice-apple.h"
#include "CCReachability.h"

#import <UIKit/UIKit.h>
// Accelerometer
#import <CoreMotion/CoreMotion.h>
#include <CoreFoundation/CoreFoundation.h>
#include <CoreText/CoreText.h>
#include <sys/utsname.h>

static const float g = 9.80665;
static const float radToDeg = (180/M_PI);

@interface CCMotionDispatcher : NSObject<UIAccelerometerDelegate>
{
    CMMotionManager* _motionManager;
    cocos2d::Device::MotionValue _motionValue;
    float _interval; // unit: seconds
    bool _enabled;
}

+ (id) sharedMotionDispatcher;
- (id) init;
- (void) setMotionEnabled: (bool) isEnabled;
- (void) setMotionInterval:(float) interval;

@end

@implementation CCMotionDispatcher

static CCMotionDispatcher* __motionDispatcher = nullptr;

+ (id) sharedMotionDispatcher
{
    if (__motionDispatcher == nil) {
        __motionDispatcher = [[CCMotionDispatcher alloc] init];
    }

    return __motionDispatcher;
}

- (id) init
{
    if( (self = [super init]) ) {
        _enabled = false;
        _interval = 1.0f / 60.0f;
        _motionManager = [[CMMotionManager alloc] init];
    }
    return self;
}

- (void) dealloc
{
    __motionDispatcher = nullptr;
    [_motionManager release];
    [super dealloc];
}

- (void) setMotionEnabled: (bool) enabled
{
    if (_enabled == enabled)
        return;

    bool isDeviceMotionAvailable = _motionManager.isDeviceMotionAvailable;
    if (enabled)
    {
        // Has Gyro? (iPhone4 and newer)
        if (isDeviceMotionAvailable) {
            [_motionManager startDeviceMotionUpdates];
            _motionManager.deviceMotionUpdateInterval = _interval;
        }
        // Only basic accelerometer data
        else {
            [_motionManager startAccelerometerUpdates];
            _motionManager.accelerometerUpdateInterval = _interval;
        }
    }
    else
    {
        // Has Gyro? (iPhone4 and newer)
        if (isDeviceMotionAvailable) {
            [_motionManager stopDeviceMotionUpdates];
        }
        // Only basic accelerometer data
        else {
            [_motionManager stopAccelerometerUpdates];
        }
    }
    _enabled = enabled;
}

-(void) setMotionInterval:(float)interval
{
    _interval = interval;
    if (_enabled)
    {
        if (_motionManager.isDeviceMotionAvailable) {
            _motionManager.deviceMotionUpdateInterval = _interval;
        }
        else {
            _motionManager.accelerometerUpdateInterval = _interval;
        }
    }
}

-(const cocos2d::Device::MotionValue&) getMotionValue {

    if (_motionManager.isDeviceMotionAvailable) {
        CMDeviceMotion* motion = _motionManager.deviceMotion;
        _motionValue.accelerationX = motion.userAcceleration.x * g;
        _motionValue.accelerationY = motion.userAcceleration.y * g;
        _motionValue.accelerationZ = motion.userAcceleration.z * g;

        _motionValue.accelerationIncludingGravityX = (motion.userAcceleration.x + motion.gravity.x) * g;
        _motionValue.accelerationIncludingGravityY = (motion.userAcceleration.y + motion.gravity.y) * g;
        _motionValue.accelerationIncludingGravityZ = (motion.userAcceleration.z + motion.gravity.z) * g;

        _motionValue.rotationRateAlpha = motion.rotationRate.x * radToDeg;
        _motionValue.rotationRateBeta = motion.rotationRate.y * radToDeg;
        _motionValue.rotationRateGamma = motion.rotationRate.z * radToDeg;
    }
    else {
        CMAccelerometerData* acc = _motionManager.accelerometerData;
        _motionValue.accelerationIncludingGravityX = acc.acceleration.x * g;
        _motionValue.accelerationIncludingGravityY = acc.acceleration.y * g;
        _motionValue.accelerationIncludingGravityZ = acc.acceleration.z * g;
    }

    return _motionValue;
}

@end

//

NS_CC_BEGIN

int Device::getDPI()
{
    static int dpi = -1;

    if (dpi == -1)
    {
        float scale = scale = [[UIScreen mainScreen] scale];

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
            dpi = 132 * scale;
        } else if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
            dpi = 163 * scale;
        } else {
            dpi = 160 * scale;
        }
    }
    return dpi;
}


void Device::setAccelerometerEnabled(bool isEnabled)
{
#if !defined(CC_TARGET_OS_TVOS)
    [[CCMotionDispatcher sharedMotionDispatcher] setMotionEnabled:isEnabled];
#endif
}

void Device::setAccelerometerInterval(float interval)
{
#if !defined(CC_TARGET_OS_TVOS)
    [[CCMotionDispatcher sharedMotionDispatcher] setMotionInterval:interval];
#endif
}

const Device::MotionValue& Device::getDeviceMotionValue()
{
#if !defined(CC_TARGET_OS_TVOS)
    return [[CCMotionDispatcher sharedMotionDispatcher] getMotionValue];
#else
    static Device::MotionValue ret;
    return ret;
#endif
}

Device::Rotation Device::getDeviceRotation()
{
    Rotation ret = Device::Rotation::_0;
    switch ([[UIApplication sharedApplication] statusBarOrientation])
    {
        case UIInterfaceOrientationLandscapeRight:
            ret = Device::Rotation::_90;
            break;

        case UIInterfaceOrientationLandscapeLeft:
            ret = Device::Rotation::_270;
            break;

        case UIInterfaceOrientationPortraitUpsideDown:
            ret = Device::Rotation::_180;
            break;

        case UIInterfaceOrientationPortrait:
            ret = Device::Rotation::_0;
            break;
        default:
            assert(false);
            break;
    }

    return ret;
}

std::string Device::getDeviceModel()
{
    struct utsname systemInfo;
    uname(&systemInfo);
    return systemInfo.machine;
}

void Device::setKeepScreenOn(bool value)
{
    [[UIApplication sharedApplication] setIdleTimerDisabled:(BOOL)value];
}

/*!
 @brief Only works on iOS devices that support vibration (such as iPhone). Should only be used for important alerts. Use risks rejection in iTunes Store.
 @param duration ignored for iOS
 */
void Device::vibrate(float duration)
{
    // See https://developer.apple.com/library/ios/documentation/AudioToolbox/Reference/SystemSoundServicesReference/index.html#//apple_ref/c/econst/kSystemSoundID_Vibrate
    CC_UNUSED_PARAM(duration);

    // automatically vibrates for approximately 0.4 seconds
    AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);
}

float Device::getBatteryLevel()
{
    return [UIDevice currentDevice].batteryLevel;
}

Device::NetworkType Device::getNetworkType()
{
    static Reachability* __reachability = nullptr;
    if (__reachability == nullptr)
    {
        __reachability = Reachability::createForInternetConnection();
        __reachability->retain();
    }

    NetworkType ret = NetworkType::NONE;
    Reachability::NetworkStatus status = __reachability->getCurrentReachabilityStatus();
    switch (status) {
        case Reachability::NetworkStatus::REACHABLE_VIA_WIFI:
            ret = NetworkType::LAN;
            break;
        case Reachability::NetworkStatus::REACHABLE_VIA_WWAN:
            ret = NetworkType::WWAN;
            break;
        default:
            ret = NetworkType::NONE;
            break;
    }

    return ret;
}

cocos2d::Vec4 Device::getSafeAreaEdge()
{
    UIView* screenView = (UIView*)Application::getInstance()->getView();

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
    float version = [[UIDevice currentDevice].systemVersion floatValue];
    if (version >= 11.0f)
    {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpartial-availability"
        UIEdgeInsets safeAreaEdge = screenView.safeAreaInsets;
#pragma clang diagnostic pop
        return cocos2d::Vec4(safeAreaEdge.top, safeAreaEdge.left, safeAreaEdge.bottom, safeAreaEdge.right);
    }
#endif

    // If running on iOS devices lower than 11.0, return ZERO Vec4.
    return cocos2d::Vec4();
}
NS_CC_END