//
//  LoginViewController.m
//  Volta
//
//  Created by Ronny Fenrich on 2013-06-13.
//  Copyright (c) 2013 Decoder. All rights reserved.
//

#import "LoginViewController.h"

@interface LoginViewController ()<UITextFieldDelegate>

@property (weak, nonatomic) IBOutlet UITextField *email;
@property (weak, nonatomic) IBOutlet UITextField *password;
@property (strong, nonatomic) MBProgressHUD *HUD;
@property (weak, nonatomic) IBOutlet UIView *contentView;
@property (weak, nonatomic) IBOutlet UIImageView *logo;
@end

@implementation LoginViewController



- (void)viewDidLoad
{
    [super viewDidLoad];

    UIView *emailPaddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
    self.email.leftView = emailPaddingView;
    self.email.leftViewMode = UITextFieldViewModeAlways;

    UIView *passwordPaddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
    self.password.leftView = passwordPaddingView;
    self.password.leftViewMode = UITextFieldViewModeAlways;

    self.contentView.$y = 0;

    // prepopulate username/password with stored information
    NSError *error;
    NSString *username = [SSKeychain passwordForService:KEYCHAIN_USER_NAME account:KEYCHAIN_ACCOUNT error:&error];
    if (error) { username = nil; }
    NSString *password = [SSKeychain passwordForService:KEYCHAIN_USER_PASSWORD account:KEYCHAIN_ACCOUNT error:&error];
    if (error) { password = nil; }

    if (username)
    {
        self.email.text = username;
    }
    if (password)
    {
        self.password.text = password;
    }
}


- (void)viewDidUnload
{
    [self setEmail:nil];
    [self setPassword:nil];
    [self setContentView:nil];
    [self setLogo:nil];
    [super viewDidUnload];
}

- (MBProgressHUD *)HUD
{
    if (!_HUD) {
        _HUD = [[MBProgressHUD alloc] initWithView:self.view];
        [self.view addSubview:_HUD];
    }
    return _HUD;
}


#pragma mark UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    // user did hit the Return/Done button on the keyboard
    if (textField == self.email)
    {
        // goto password field
        [self.password becomeFirstResponder];
    }
    else
        if (textField == self.password)
        {
            [self login:self.password];
        }

    return YES;
}


- (void)textFieldDidEndEditing:(UITextField *)textField
{
    [textField resignFirstResponder];
}


- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    [UIView animateWithDuration:HUD_ANIMATION_DURATION animations:^{

        self.contentView.$y = -116;

    }];
}


- (void)dismissKeyboard
{
    [self.view endEditing:YES];
    if (self.contentView.$y!=0)
    {
        [UIView animateWithDuration:HUD_ANIMATION_DURATION animations:^{
            self.contentView.$y = 0;
        }];
    }
}


#pragma mark - Action methods


- (IBAction)backgroundTapped:(id)sender
{
    [self dismissKeyboard];
}

- (IBAction)login:(id)sender
{
//    [self performSegueWithIdentifier:@"gotoMainInterface" sender:nil];
//    return;

    [self dismissKeyboard];
    self.HUD.mode = MBProgressHUDModeIndeterminate;
    self.HUD.labelText = nil;
    self.HUD.customView = nil;
    [self.HUD show:YES];


    // try to login/register...
    NSDictionary *params = @{@"email": self.email.text, @"password": self.password.text};

    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:HOST]];
    [httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
    [httpClient setDefaultHeader:@"Accept" value:@"application/json"];
    [httpClient.operationQueue setMaxConcurrentOperationCount:1];
    [httpClient setParameterEncoding:AFJSONParameterEncoding];
    NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" path:URL_LOGIN parameters:params];

    NSLog(@"POST: %@", request);

    AFJSONRequestOperation *operation = [AFJSONRequestOperation
                                         JSONRequestOperationWithRequest:request
                                         success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON)
                                         {
                                             NSLog(@"%@", JSON);

                                             // check if login was successfull
                                             NSString *token = [JSON objectForKey:@"auth_token"];
                                             if (!token || [token isEmpty])
                                             {
                                                 [self.HUD hide:YES];
                                                 [TSMessage showNotificationInViewController:self
                                                                                   withTitle:@"Login failed!"
                                                                                 withMessage:@"Please verify your login credentials and try again."
                                                                                    withType:TSMessageNotificationTypeError
                                                                                withDuration:OVERLAY_MESSAGE_DURATION
                                                  ];
                                             }
                                             else
                                             {
                                                 // successfull login!
                                                 [SSKeychain setPassword:token forService:KEYCHAIN_API_TOKEN account:KEYCHAIN_ACCOUNT];
                                                 [SSKeychain setPassword:self.email.text forService:KEYCHAIN_USER_NAME account:KEYCHAIN_ACCOUNT];
                                                 [SSKeychain setPassword:self.password.text forService:KEYCHAIN_USER_PASSWORD account:KEYCHAIN_ACCOUNT];

                                                 [self performSegueWithIdentifier:@"gotoMainInterface" sender:nil];
                                             }

                                         }
                                         failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON)
                                         {
                                             [self.HUD hide:YES];
                                             NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo);

                                             BlockAlertView *alert = [BlockAlertView alertWithTitle:@"Something's not working." message:@"Login/Signup currently not possible. Please try again."];
                                             [alert setCancelButtonWithTitle:@"Ok" block:nil];
                                             [alert show];
                                         }];
    [operation start];
    
}



@end