/*
 *  Copyright (C) 2015 Savoir-faire Linux Inc.
 *  Author: Alexandre Lision <alexandre.lision@savoirfairelinux.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 3 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  If you modify this program, or any covered work, by linking or
 *  combining it with the OpenSSL project's OpenSSL library (or a
 *  modified version of that library), containing parts covered by the
 *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
 *  grants you additional permission to convey the resulting work.
 *  Corresponding Source for a non-source form of such a combination
 *  shall include the source code for the parts of OpenSSL used as well
 *  as that of the covered work.
 */
#import "RingWindowController.h"

//LRC
#import <accountmodel.h>
#import <callmodel.h>
#import <account.h>
#import <call.h>
#import <personmodel.h>

#import "AppDelegate.h"
#import "Constants.h"
#import "CurrentCallVC.h"

#import "backends/AddressBookBackend.h"

@interface RingWindowController ()

@property NSSearchField* callField;
@property CurrentCallVC* currentVC;
@property (unsafe_unretained) IBOutlet NSView *callView;
@property (unsafe_unretained) IBOutlet NSTextField *ringIDLabel;


@end

@implementation RingWindowController
@synthesize callField;
@synthesize currentVC;
@synthesize callView, ringIDLabel;

static NSString* const kSearchViewIdentifier = @"SearchViewIdentifier";
static NSString* const kPreferencesIdentifier = @"PreferencesIdentifier";
static NSString* const kCallButtonIdentifer = @"CallButtonIdentifier";

- (void)windowDidLoad {
    [super windowDidLoad];
    [self.window setReleasedWhenClosed:FALSE];
    [self displayMainToolBar];

    currentVC = [[CurrentCallVC alloc] initWithNibName:@"CurrentCall" bundle:nil];
    [callView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
    [[currentVC view] setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];


    PersonModel::instance()->addCollection<AddressBookBackend>(LoadOptions::FORCE_ENABLED);
    [callView addSubview:[self.currentVC view] positioned:NSWindowAbove relativeTo:nil];

    [currentVC initFrame];

    // Update Ring ID label based on account model changes
    QObject::connect(AccountModel::instance(),
                     &AccountModel::dataChanged,
                     [=] {
                         [self updateRingID];
                     });
}

/**
 * Implement the necessary logic to choose which Ring ID to display.
 * This tries to choose the "best" ID to show
 */
- (void) updateRingID
{
    Account* registered = nullptr;
    Account* enabled = nullptr;
    Account* finalChoice = nullptr;

    [ringIDLabel setStringValue:@""];
    auto ringList = AccountModel::instance()->getAccountsByProtocol(Account::Protocol::RING);
    for (int i = 0 ; i < ringList.size() && !registered ; ++i) {
        Account* acc = ringList.value(i);
        if (acc->isEnabled()) {
            if(!enabled)
                enabled = finalChoice = acc;
            if (acc->registrationState() == Account::RegistrationState::READY) {
                registered = enabled = finalChoice = acc;
            }
        } else {
            if (!finalChoice)
                finalChoice = acc;
        }
    }

    [ringIDLabel setStringValue:[[NSString alloc] initWithFormat:@"%@", finalChoice->username().toNSString()]];
}

- (IBAction)openPreferences:(id)sender
{
    if(self.preferencesViewController != nil) {
        [self closePreferences:nil];
        return;
    }
    NSToolbar* tb = [[NSToolbar alloc] initWithIdentifier: @"PreferencesToolbar"];

    self.preferencesViewController = [[PreferencesVC alloc] initWithNibName:@"PreferencesScreen" bundle:nil];
    self.myCurrentViewController = self.preferencesViewController;

    NSLayoutConstraint* test = [NSLayoutConstraint constraintWithItem:self.preferencesViewController.view
                                                            attribute:NSLayoutAttributeWidth
                                                            relatedBy:NSLayoutRelationEqual
                                                               toItem:currentView
                                                            attribute:NSLayoutAttributeWidth
                                                           multiplier:1.0f
                                                             constant:0.0f];

    NSLayoutConstraint* test2 = [NSLayoutConstraint constraintWithItem:self.preferencesViewController.view
                                                             attribute:NSLayoutAttributeHeight
                                                             relatedBy:NSLayoutRelationEqual
                                                                toItem:currentView
                                                             attribute:NSLayoutAttributeHeight
                                                            multiplier:1.0f
                                                              constant:0.0f];

    NSLayoutConstraint* test3 = [NSLayoutConstraint constraintWithItem:self.preferencesViewController.view
                                                             attribute:NSLayoutAttributeCenterX
                                                             relatedBy:NSLayoutRelationEqual
                                                                toItem:currentView
                                                             attribute:NSLayoutAttributeCenterX
                                                            multiplier:1.0f
                                                              constant:0.0f];


    [currentView addSubview:[self.preferencesViewController view]];

    [tb setDelegate: self.preferencesViewController];
    [self.window setToolbar: tb];

    [self.window.toolbar setSelectedItemIdentifier:@"GeneralPrefsIdentifier"];

    [currentView addConstraint:test];
    [currentView addConstraint:test2];
    [currentView addConstraint:test3];
    // make sure we automatically resize the controller's view to the current window size
    [[self.myCurrentViewController view] setFrame:[currentView bounds]];

    // set the view controller's represented object to the number of subviews in that controller
    // (our NSTextField's value binding will reflect this value)
    [self.myCurrentViewController setRepresentedObject:[NSNumber numberWithUnsignedInteger:[[[self.myCurrentViewController view] subviews] count]]];
    
}

- (IBAction) closePreferences:(NSToolbarItem *)sender {
    if(self.myCurrentViewController != nil)
    {
        [self.preferencesViewController close];
        [self displayMainToolBar];
        self.preferencesViewController = nil;
    }
}

-(void) displayMainToolBar
{
    NSToolbar* tb = [[NSToolbar alloc] initWithIdentifier: @"MainToolbar"];
    [tb setDisplayMode:NSToolbarDisplayModeIconAndLabel];
    [tb setDelegate: self];
    [self.window setToolbar: tb];
}

// FIXME: This is sick, NSWindowController is catching my selectors
- (void)displayGeneral:(NSToolbarItem *)sender {
    [self.preferencesViewController displayGeneral:sender];
}

- (void)displayAudio:(NSToolbarItem *)sender {
    [self.preferencesViewController displayAudio:sender];
}

- (void)displayAncrage:(NSToolbarItem *)sender {
    [self.preferencesViewController displayAncrage:sender];
}

- (void)displayVideo:(NSToolbarItem *)sender {
    [self.preferencesViewController displayVideo:sender];
}

- (void)displayAccounts:(NSToolbarItem *)sender {
    [self.preferencesViewController displayAccounts:sender];
}

- (void)togglePowerSettings:(id)sender
{
    BOOL advanced = [[NSUserDefaults standardUserDefaults] boolForKey:Preferences::ShowAdvanced];
    [[NSUserDefaults standardUserDefaults] setBool:!advanced forKey:Preferences::ShowAdvanced];
    [[NSUserDefaults standardUserDefaults] synchronize];

    NSToolbar* tb = [[NSToolbar alloc] initWithIdentifier: @"PreferencesToolbar"];
    [tb setDelegate: self.preferencesViewController];
    [self.preferencesViewController displayGeneral:nil];
    [self.window setToolbar:tb];
}

#pragma NSToolbar Delegate

-(NSToolbarItem *)toolbar:(NSToolbar *)toolbar itemForItemIdentifier:(NSString *)itemIdentifier willBeInsertedIntoToolbar:(BOOL)flag
{
    NSToolbarItem* item = nil;

    if ([itemIdentifier isEqualToString: kSearchViewIdentifier]) {
        item = [[NSToolbarItem alloc] initWithItemIdentifier: kSearchViewIdentifier];
        callField = [[NSSearchField alloc] initWithFrame:NSMakeRect(0,0,400,21)];
        [[callField cell] setSearchButtonCell:nil];
        [callField setToolTip:@"Call"];
        [callField setAlignment:NSCenterTextAlignment];
        [callField setDelegate:self];
        [item setView:callField];
    }

    if ([itemIdentifier isEqualToString: kCallButtonIdentifer]) {
        item = [[NSToolbarItem alloc] initWithItemIdentifier: kCallButtonIdentifer];

        NSButton *callButton = [[NSButton alloc] initWithFrame:NSMakeRect(0,0,80,30)];

        [callButton setButtonType:NSMomentaryLightButton]; //Set what type button You want
        [callButton setBezelStyle:NSRoundedBezelStyle]; //Set what style You want]
        [callButton setBordered:YES];
        [callButton setTitle:@"Call"];
        [item setView:callButton];
        [item setAction:@selector(placeCall:)];
    }

    if ([itemIdentifier isEqualToString: kPreferencesIdentifier]) {
        item = [[NSToolbarItem alloc] initWithItemIdentifier: kPreferencesIdentifier];
        [item setImage: [NSImage imageNamed: @"NSAdvanced"]];
        [item setLabel: @"Settings"];
        [item setAction:@selector(openPreferences:)];
    }

    return item;
}

- (IBAction)placeCall:(id)sender
{
    Call* c = CallModel::instance()->dialingCall();
    // check for a valid ring hash
    NSCharacterSet *hexSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789abcdefABCDEF"];
    BOOL valid = [[[callField stringValue] stringByTrimmingCharactersInSet:hexSet] isEqualToString:@""];

    if(valid && callField.stringValue.length == 40) {
        c->setDialNumber(QString::fromNSString([NSString stringWithFormat:@"ring:%@",[callField stringValue]]));
    } else {
        c->setDialNumber(QString::fromNSString([callField stringValue]));
    }

    c << Call::Action::ACCEPT;
}

-(NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar*)toolbar
{
    return [NSArray arrayWithObjects:
            NSToolbarSpaceItemIdentifier,
            NSToolbarFlexibleSpaceItemIdentifier,
            NSToolbarSpaceItemIdentifier,
            NSToolbarSpaceItemIdentifier,
            kSearchViewIdentifier,
            kCallButtonIdentifer,
            NSToolbarFlexibleSpaceItemIdentifier,
            kPreferencesIdentifier,
            nil];
}

-(NSArray *)toolbarSelectableItemIdentifiers:(NSToolbar *)toolbar
{
    return [NSArray arrayWithObjects:
            kSearchViewIdentifier,
            kCallButtonIdentifer,
            kPreferencesIdentifier,
            nil];
}

-(NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar*)toolbar
{
    return nil;
}

#pragma NSTextField Delegate

- (BOOL)control:(NSControl *)control textView:(NSTextView *)fieldEditor doCommandBySelector:(SEL)commandSelector
{
    if (commandSelector == @selector(insertNewline:)) {
        if([[callField stringValue] isNotEqualTo:@""]) {
            [self placeCall:nil];
            return YES;
        }
    }

    return NO;
}


@end