/*****************************************************************************
 * VLCMenuTableViewController.m
 * VLC for iOS
 *****************************************************************************
 * Copyright (c) 2013-2015 VideoLAN. All rights reserved.
 * $Id$
 *
 * Authors: Felix Paul Kühne <fkuehne # videolan.org>
 *          Gleb Pinigin <gpinigin # gmail.com>
 *          Jean-Romain Prévost <jr # 3on.fr>
 *          Carola Nitz <nitz.carola # googlemail.com>
 *          Tamas Timar <ttimar.vlc # gmail.com>
 *          Pierre Sagaspe <pierre.sagaspe # me.com>
 *
 * Refer to the COPYING file of the official project for license.
 *****************************************************************************/

#import "VLCMenuTableViewController.h"
#import "GHRevealViewController.h"
#import "VLCSidebarViewCell.h"
#import "Reachability.h"
#import <QuartzCore/QuartzCore.h>
#import "VLCWiFiUploadTableViewCell.h"
#import "VLCHTTPUploaderController.h"
#import "VLCAppDelegate.h"
#import "HTTPServer.h"
#import "IASKAppSettingsViewController.h"
#import "GHRevealViewController.h"
#import "VLCLocalServerListViewController.h"
#import "VLCOpenNetworkStreamViewController.h"
#import "VLCSettingsController.h"
#import "VLCAboutViewController.h"
#import "VLCPlaylistViewController.h"
#import "VLCBugreporter.h"
#import "VLCCloudServicesTableViewController.h"
#import "VLCNavigationController.h"

@interface VLCMenuTableViewController () <UITableViewDataSource, UITableViewDelegate>
{
    NSArray *_sectionHeaderTexts;
    NSArray *_menuItemsSectionOne;
    NSArray *_menuItemsSectionTwo;
    NSArray *_menuItemsSectionThree;
    NSMutableSet *_hiddenSettingKeys;

    UILabel *_uploadLocationLabel;
    UIButton *_uploadButton;
    Reachability *_reachability;
}

@property (nonatomic) VLCHTTPUploaderController *uploadController;

@end

@implementation VLCMenuTableViewController

- (void)dealloc
{
    [_reachability stopNotifier];
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.view.frame = CGRectMake(0.0f, 0.0f, kGHRevealSidebarWidth, CGRectGetHeight(self.view.bounds));
    self.view.autoresizingMask = UIViewAutoresizingFlexibleHeight;

    _sectionHeaderTexts = @[@"SECTION_HEADER_LIBRARY", @"SECTION_HEADER_NETWORK", @"Settings"];
    _menuItemsSectionOne = @[@"LIBRARY_ALL_FILES", @"LIBRARY_MUSIC", @"LIBRARY_SERIES"];
    _menuItemsSectionTwo = @[@"LOCAL_NETWORK", @"OPEN_NETWORK", @"DOWNLOAD_FROM_HTTP", @"WEBINTF_TITLE", @"CLOUD_SERVICES"];

    _menuItemsSectionThree = @[@"Settings", @"ABOUT_APP"];

    _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0.0f, 44.0f + 20.0f, kGHRevealSidebarWidth, CGRectGetHeight(self.view.bounds) - (44.0f + 20.0f)) style:UITableViewStylePlain];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    _tableView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
    _tableView.backgroundColor = [UIColor colorWithRed:(43.0f/255.0f) green:(43.0f/255.0f) blue:(43.0f/255.0f) alpha:1.0f];
    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    _tableView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
    _tableView.rowHeight = [VLCWiFiUploadTableViewCell heightOfCell];
    _tableView.scrollsToTop = NO;

    self.view = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, kGHRevealSidebarWidth, CGRectGetHeight(self.view.bounds))];
    self.view.autoresizingMask = UIViewAutoresizingFlexibleHeight;
    [self.view addSubview:_tableView];

    if (SYSTEM_RUNS_IOS7_OR_LATER) {
        UIView *brandingBackgroundView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, kGHRevealSidebarWidth, 64.0f)];
        brandingBackgroundView.backgroundColor = [UIColor colorWithRed:0.1608 green:0.1608 blue:0.1608 alpha:1.0000];
        [self.view addSubview:brandingBackgroundView];
    } else {
        UIImageView *brandingBackgroundImageView;
        brandingBackgroundImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 20.0f, kGHRevealSidebarWidth, 44.0f)];
        brandingBackgroundImageView.contentMode = UIViewContentModeScaleToFill;
        brandingBackgroundImageView.image = [UIImage imageNamed:@"headerSidebar"];
        [self.view addSubview:brandingBackgroundImageView];
    }
    UIImageView *brandingImageView;
    brandingImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, kGHRevealSidebarWidth, 44.0f + 40.0f)];
    brandingImageView.contentMode = UIViewContentModeCenter;
    brandingImageView.image = [UIImage imageNamed:@"title"];
    [self.view addSubview:brandingImageView];

    [self.tableView selectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] animated:NO scrollPosition:UITableViewScrollPositionTop];

    _reachability = [Reachability reachabilityForLocalWiFi];
    [_reachability startNotifier];

    [self netReachabilityChanged:nil];

    VLCAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    self.uploadController = appDelegate.uploadController;

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(netReachabilityChanged:) name:kReachabilityChangedNotification object:nil];

    BOOL isHTTPServerOn = [[NSUserDefaults standardUserDefaults] boolForKey:kVLCSettingSaveHTTPUploadServerStatus];
    [self.uploadController changeHTTPServerState:isHTTPServerOn];
    [self updateHTTPServerAddress];
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    self.view.frame = CGRectMake(0.0f, 0.0f,kGHRevealSidebarWidth, CGRectGetHeight(self.view.bounds));
    [self netReachabilityChanged:nil];
}

- (void)netReachabilityChanged:(NSNotification *)notification
{
    if (_reachability.currentReachabilityStatus == ReachableViaWiFi) {
        _uploadButton.enabled = YES;
        [self updateHTTPServerAddress];
    } else {
        [_uploadButton setImage:[UIImage imageNamed:@"WifiUp"] forState:UIControlStateNormal];
        _uploadButton.enabled = NO;
        [_uploadButton setImage:[UIImage imageNamed:@"WiFiUp"] forState:UIControlStateDisabled];
        _uploadLocationLabel.text = NSLocalizedString(@"HTTP_UPLOAD_NO_CONNECTIVITY", nil);
        [self.uploadController changeHTTPServerState:NO];
    }
}

- (BOOL)shouldAutorotate
{
    UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
    return (orientation == UIInterfaceOrientationPortraitUpsideDown) ? (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) : YES;
}

- (BOOL)canBecomeFirstResponder
{
    return YES;
}

#pragma mark - table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 3;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if (section == 0) // media
        return _menuItemsSectionOne.count;
    else if (section == 1) // network
        return _menuItemsSectionTwo.count;
    else if (section == 2) // settings & co
        return _menuItemsSectionThree.count;
    else
        return 0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"VLCMenuCell";
    static NSString *WiFiCellIdentifier = @"VLCMenuWiFiCell";

    NSString *rawTitle;
    NSUInteger section = indexPath.section;
    if (section == 0)
        rawTitle = _menuItemsSectionOne[indexPath.row];
    else if(section == 1)
        rawTitle = _menuItemsSectionTwo[indexPath.row];
    else if(section == 2)
        rawTitle = _menuItemsSectionThree[indexPath.row];

    UITableViewCell *cell;

    if ([rawTitle isEqualToString:@"WEBINTF_TITLE"]) {
        cell = (VLCWiFiUploadTableViewCell *)[tableView dequeueReusableCellWithIdentifier:WiFiCellIdentifier];
        if (cell == nil)
            cell = [VLCWiFiUploadTableViewCell cellWithReuseIdentifier:WiFiCellIdentifier];
    } else {
        cell = (VLCSidebarViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        if (cell == nil)
            cell = [[VLCSidebarViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    if (section == 0) {
        if ([rawTitle isEqualToString:@"LIBRARY_ALL_FILES"])
            cell.imageView.image = [UIImage imageNamed:@"AllFiles"];
        else if ([rawTitle isEqualToString:@"LIBRARY_MUSIC"])
            cell.imageView.image = [UIImage imageNamed:@"MusicAlbums"];
        else if ([rawTitle isEqualToString:@"LIBRARY_SERIES"])
            cell.imageView.image = [UIImage imageNamed:@"TVShowsIcon"];
    } else if (section == 1) {
        if ([rawTitle isEqualToString:@"LOCAL_NETWORK"])
            cell.imageView.image = [UIImage imageNamed:@"Local"];
        else if ([rawTitle isEqualToString:@"OPEN_NETWORK"])
            cell.imageView.image = [UIImage imageNamed:@"OpenNetStream"];
        else if ([rawTitle isEqualToString:@"DOWNLOAD_FROM_HTTP"])
            cell.imageView.image = [UIImage imageNamed:@"Downloads"];
        else if ([rawTitle isEqualToString:@"WEBINTF_TITLE"]) {
            _uploadLocationLabel = [(VLCWiFiUploadTableViewCell*)cell uploadAddressLabel];
            _uploadButton = [(VLCWiFiUploadTableViewCell*)cell serverOnButton];
            [_uploadButton addTarget:self action:@selector(toggleHTTPServer:) forControlEvents:UIControlEventTouchUpInside];
        } else if ([rawTitle isEqualToString:@"CLOUD_SERVICES"])
            cell.imageView.image = [UIImage imageNamed:@"iCloudIcon"];
    } else if (section == 2) {
        if ([rawTitle isEqualToString:@"Settings"])
            cell.imageView.image = [UIImage imageNamed:@"Settings"];
        else
            cell.imageView.image = [UIImage imageNamed:@"menuCone"];
    }

    if (![rawTitle isEqualToString:@"WEBINTF_TITLE"])
        cell.textLabel.text = NSLocalizedString(rawTitle, nil);

    return cell;
}

#pragma mark - table view delegation
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    if (section < 3)
        return 21.f;
    return 0.;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    NSObject *headerText = NSLocalizedString(_sectionHeaderTexts[section], nil);
    UIView *headerView = nil;
    if (headerText != [NSNull null]) {
        headerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, [UIScreen mainScreen].bounds.size.height, 21.0f)];
        if (!SYSTEM_RUNS_IOS7_OR_LATER) {
            CAGradientLayer *gradient = [CAGradientLayer layer];
            gradient.frame = headerView.bounds;
            gradient.colors = @[
                          (id)[UIColor colorWithRed:(66.0f/255.0f) green:(66.0f/255.0f) blue:(66.0f/255.0f) alpha:1.0f].CGColor,
                          (id)[UIColor colorWithRed:(56.0f/255.0f) green:(56.0f/255.0f) blue:(56.0f/255.0f) alpha:1.0f].CGColor,
                          ];
            [headerView.layer insertSublayer:gradient atIndex:0];
        } else
            headerView.backgroundColor = [UIColor VLCDarkBackgroundColor];

        UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectInset(headerView.bounds, 12.0f, 5.0f)];
        textLabel.text = (NSString *) headerText;
        textLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:([UIFont systemFontSize] * 0.8f)];
        textLabel.shadowOffset = CGSizeMake(0.0f, 1.0f);
        textLabel.shadowColor = [UIColor VLCDarkTextShadowColor];
        textLabel.textColor = [UIColor colorWithRed:(118.0f/255.0f) green:(118.0f/255.0f) blue:(118.0f/255.0f) alpha:1.0f];
        textLabel.backgroundColor = [UIColor clearColor];
        [headerView addSubview:textLabel];

        UIView *topLine = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, [UIScreen mainScreen].bounds.size.height, 1.0f)];
        topLine.backgroundColor = [UIColor colorWithRed:(95.0f/255.0f) green:(95.0f/255.0f) blue:(95.0f/255.0f) alpha:1.0f];
        [headerView addSubview:topLine];

        UIView *bottomLine = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 21.0f, [UIScreen mainScreen].bounds.size.height, 1.0f)];
        bottomLine.backgroundColor = [UIColor colorWithRed:(16.0f/255.0f) green:(16.0f/255.0f) blue:(16.0f/255.0f) alpha:1.0f];
        [headerView addSubview:bottomLine];
    }
    return headerView;
}

#pragma mark - menu implementation

- (void)updateHTTPServerAddress
{
    HTTPServer *server = self.uploadController.httpServer;
    if (server.isRunning) {
        _uploadLocationLabel.numberOfLines = 0;
        if (server.listeningPort != 80)
            _uploadLocationLabel.text = [NSString stringWithFormat:@"http://%@:%i\nhttp://%@:%i", [self.uploadController currentIPAddress], server.listeningPort, [self.uploadController hostname], server.listeningPort];
        else
            _uploadLocationLabel.text = [NSString stringWithFormat:@"http://%@\nhttp://%@", [self.uploadController currentIPAddress], [self.uploadController hostname]];
        [_uploadButton setImage:[UIImage imageNamed:@"WifiUpOn"] forState:UIControlStateNormal];
    } else {
        _uploadLocationLabel.text = NSLocalizedString(@"HTTP_UPLOAD_SERVER_OFF", nil);
        [_uploadButton setImage:[UIImage imageNamed:@"WifiUp"] forState:UIControlStateNormal];
    }
}

- (IBAction)toggleHTTPServer:(UIButton *)sender
{
    if (_uploadButton.enabled) {
        BOOL futureHTTPServerState = !self.uploadController.httpServer.isRunning;

        [[NSUserDefaults standardUserDefaults] setBool:futureHTTPServerState forKey:kVLCSettingSaveHTTPUploadServerStatus];
        [self.uploadController changeHTTPServerState:futureHTTPServerState];
        [self updateHTTPServerAddress];
        [[NSUserDefaults standardUserDefaults] synchronize];
    }
}

- (void)_revealItem:(NSUInteger)itemIndex inSection:(NSUInteger)sectionNumber
{
    UIViewController *viewController;
    VLCAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    if (sectionNumber == 1) {
        if (itemIndex == 0)
            viewController = [[VLCLocalServerListViewController alloc] init];
        else if (itemIndex == 1) {
            if (SYSTEM_RUNS_IOS7_OR_LATER)
                viewController = [[VLCOpenNetworkStreamViewController alloc] initWithNibName:@"VLCFutureOpenNetworkStreamViewController" bundle:nil];
            else
                viewController = [[VLCOpenNetworkStreamViewController alloc] initWithNibName:@"VLCOpenNetworkStreamViewController" bundle:nil];
        } else if (itemIndex == 2)
            viewController = appDelegate.downloadViewController;
        else if (itemIndex == 3)
            [self toggleHTTPServer:nil];
        else if (itemIndex == 4)
            viewController = [[VLCCloudServicesTableViewController alloc] initWithNibName:@"VLCCloudServicesTableViewController" bundle:nil];
    } else if (sectionNumber == 2) {
        if (itemIndex == 0) {
            if (!self.settingsController)
                self.settingsController = [[VLCSettingsController alloc] init];
            VLCSettingsController *settingsController = self.settingsController;

            if (!self.settingsViewController) {
                self.settingsViewController = [[IASKAppSettingsViewController alloc] initWithStyle:UITableViewStyleGrouped];
                settingsController.viewController = self.settingsViewController;
                self.settingsViewController.navigationItem.leftBarButtonItem = [UIBarButtonItem themedRevealMenuButtonWithTarget:self.settingsController.viewController andSelector:@selector(dismiss:)];
            }

            _hiddenSettingKeys = [[NSMutableSet alloc] init];
            IASKAppSettingsViewController *settingsVC = self.settingsViewController;
            settingsVC.modalPresentationStyle = UIModalPresentationFormSheet;
            settingsVC.delegate = self.settingsController;
            settingsVC.showDoneButton = NO;
            settingsVC.showCreditsFooter = NO;

            if (![[[NSUserDefaults standardUserDefaults] objectForKey:kVLCSettingPlaybackGestures] boolValue])
                [_hiddenSettingKeys addObject:@"EnableVariableJumpDuration"];

            [self.settingsController.viewController setHiddenKeys:_hiddenSettingKeys];
            viewController = settingsVC;
        } else if (itemIndex == 1)
            viewController = [[VLCAboutViewController alloc] init];
    } else {
        viewController = appDelegate.playlistViewController;
        [(VLCPlaylistViewController *)viewController setLibraryMode:(int)itemIndex];
    }

    if (!viewController)
        return;


    GHRevealViewController *revealController = appDelegate.revealController;
    if ([revealController.contentViewController isKindOfClass:[UINavigationController class]]) {
        UINavigationController *navCon = (UINavigationController*)revealController.contentViewController;
        navCon.viewControllers = @[viewController];
    } else
        revealController.contentViewController = [[VLCNavigationController alloc] initWithRootViewController:viewController];

    [revealController toggleSidebar:NO duration:kGHRevealSidebarDefaultAnimationDuration];
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self _revealItem:indexPath.row inSection:indexPath.section];
}

#pragma mark Public Methods
- (void)selectRowAtIndexPath:(NSIndexPath *)indexPath animated:(BOOL)animated scrollPosition:(UITableViewScrollPosition)scrollPosition
{
    UITableView *tableView = self.tableView;
    [tableView selectRowAtIndexPath:indexPath animated:animated scrollPosition:scrollPosition];
    if (scrollPosition == UITableViewScrollPositionNone)
        [tableView scrollToRowAtIndexPath:indexPath atScrollPosition:scrollPosition animated:animated];
    [self _revealItem:indexPath.row inSection:indexPath.section];
}

#pragma mark - shake for support
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if (motion == UIEventSubtypeMotionShake)
        [[VLCBugreporter sharedInstance] handleBugreportRequest];
}

@end