//
//  LoginViewController.m
//  Juick
//
//  Created by Vitaly on 30.01.14.
//  Copyright (c) 2014 com.juick. All rights reserved.
//

#import "LoginViewController.h"
#import "User.h"
#import "AppDelegate.h"
#import "APIClient.h"

NSString * const UserSignedInNotificationName = @"UserSignedIn";

@interface LoginViewController()
@property (nonatomic, assign) int paddingValue;
@end

@implementation LoginViewController

- (void) awakeFromNib {
    [super awakeFromNib];
    self.title = @"Sign in";
    [self.view setBackgroundColor:[UIColor colorNamed:@"Background"]];
    [self.visualEffectView.contentView setBackgroundColor:[UIColor colorNamed:@"Background"]];
    
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
                                                                                          target:self action:@selector(cancelSignIn)];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave
                                                                                           target:self action:@selector(doneSignIn)];
    self.usernameField.text = [APIClient sharedClient].credential.user;
    self.passwordField.text = [APIClient sharedClient].credential.password;
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
}

-(void) keyboardDidShow:(NSNotification *)sender {
    CGRect keyboardRect = [sender.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    self.bottomConstraint.constant = keyboardRect.size.height - self.view.safeAreaInsets.bottom + self.paddingValue;
    [self.view layoutIfNeeded];
}
-(void) keyboardWillHide:(NSNotification *)sender {
    self.bottomConstraint.constant = self.paddingValue;
    [self.view layoutIfNeeded];
}


- (void) cancelSignIn {
    CATransition* transition = [CATransition animation];
    transition.duration = 0.3;
    transition.type = kCATransitionFade;
    transition.subtype = kCATransitionFromTop;
    
    [self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
    [self.navigationController dismissViewControllerAnimated:NO completion:nil];
}

- (void) doneSignIn {
    [[APIClient sharedClient] setCredential:[NSURLCredential credentialWithUser:self.usernameField.text password:self.passwordField.text persistence:NSURLCredentialPersistenceSynchronizable]];
    [[APIClient sharedClient] authenticate:^(User *user, NSError *error) {
        if (user) {
            [[NSNotificationCenter defaultCenter] postNotificationName:UserSignedInNotificationName object:user];
            [[AppDelegate shared] registerForRemoteNotifications];
            CATransition* transition = [CATransition animation];
            transition.duration = 0.3;
            transition.type = kCATransitionFade;
            transition.subtype = kCATransitionFromTop;
            
            [self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
            [self.navigationController dismissViewControllerAnimated:NO completion:nil];
        } else {
            [User throwUnableToLogin:self error:error];
        }
    }];
}
@end