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

#import "StatsViewController.h"
#import "StatsTabBarController.h"

@interface StatsViewController ()<UITextFieldDelegate>

@property (weak, nonatomic) IBOutlet UITextField *startDate;
@property (weak, nonatomic) IBOutlet UITextField *endDate;
@property (weak, nonatomic) IBOutlet UIScrollView *content;

@property (strong, nonatomic) UIDatePicker *startDatePicker;
@property (strong, nonatomic) UIDatePicker *endDatePicker;

@property (strong, nonatomic) NSDate *currentStartDate;
@property (strong, nonatomic) NSDate *currentEndDate;

@end

@implementation StatsViewController


- (void)viewDidLoad
{
    [super viewDidLoad];

    self.navigationController.navigationBarHidden = NO;
    self.navigationItem.hidesBackButton = YES;
    self.navigationController.navigationBar.barStyle = UIBarStyleBlack;

    UIView *paddingView1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
    self.startDate.leftView = paddingView1;
    self.startDate.leftViewMode = UITextFieldViewModeAlways;

    UIView *paddingView2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
    self.endDate.leftView = paddingView2;
    self.endDate.leftViewMode = UITextFieldViewModeAlways;

    self.content.$y = 0;

    self.startDatePicker = [[UIDatePicker alloc] init];
    [self.startDatePicker setDatePickerMode:UIDatePickerModeDate];
    [self.startDatePicker addTarget:self action:@selector(startDatePickerValueChanged:) forControlEvents:UIControlEventValueChanged];
    self.startDate.inputView = self.startDatePicker;
    NSDate *startDateValue = [NSDate dateWithTimeIntervalSince1970:1325448000]; // 1.1.2012
    [self.startDatePicker setDate:startDateValue];
    [self startDatePickerValueChanged:nil];

    self.endDatePicker = [[UIDatePicker alloc] init];
    [self.endDatePicker setDatePickerMode:UIDatePickerModeDate];
    [self.endDatePicker addTarget:self action:@selector(endDatePickerValueChanged:) forControlEvents:UIControlEventValueChanged];
    self.endDate.inputView = self.endDatePicker;
    NSDate *endDateValue = [NSDate date];
    [self.endDatePicker setDate:endDateValue];
    [self endDatePickerValueChanged:nil];
}


- (void)startDatePickerValueChanged:(id)sender
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
    [dateFormatter setTimeStyle:NSDateFormatterNoStyle];
    self.startDate.text = [dateFormatter stringFromDate:[self.startDatePicker date]];
}


- (void)endDatePickerValueChanged:(id)sender
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
    [dateFormatter setTimeStyle:NSDateFormatterNoStyle];
    self.endDate.text = [dateFormatter stringFromDate:[self.endDatePicker date]];
}


- (void)viewDidUnload
{
    [self setStartDate:nil];
    [self setEndDate:nil];
    [self setContent:nil];
    [super viewDidUnload];
}


#pragma mark UITextFieldDelegate


#define SCROLLVIEW_HEIGHT 256

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

    return YES;
}


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

    [self.content setContentOffset:CGPointZero animated:YES];
//    [self performBlock:^(id sender) {
//        self.content.contentSize = CGSizeMake(self.content.frame.size.width, SCROLLVIEW_HEIGHT);
//    } afterDelay:0.4];
}


#define ACTIVE_TEXTFIELD_SCROLLVIEW_OFFSET 122
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    self.content.contentSize = CGSizeMake(self.content.frame.size.width, SCROLLVIEW_HEIGHT + ACTIVE_TEXTFIELD_SCROLLVIEW_OFFSET);
    [self.content setContentOffset:CGPointMake(0, ACTIVE_TEXTFIELD_SCROLLVIEW_OFFSET) animated:YES];
}


- (void)dismissKeyboard
{
    [self.view endEditing:YES];
}


#pragma mark - Action methods


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


- (IBAction)statsCurrentMonth:(id)sender
{
    NSDate *curDate = [NSDate date];
    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDateComponents* comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate];

    // First of month
    [comps setDay:1];
    NSDate *startDate = [calendar dateFromComponents:comps];

    // Last of month
    [comps setMonth:[comps month]+1];
    [comps setDay:0];
    [comps setHour:23];
    [comps setMinute:59];
    [comps setSecond:59];
    NSDate *endDate = [calendar dateFromComponents:comps];

    [self showStatsForStartDate:startDate endDate:endDate];
}

- (IBAction)statsLast30days:(id)sender
{
    NSDate *curDate = [NSDate date];
    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDateComponents* comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate];

    // End of today
    [comps setHour:23];
    [comps setMinute:59];
    [comps setSecond:59];
    NSDate *endDate = [calendar dateFromComponents:comps];

    // today - 30 days
    NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
    [offsetComponents setDay:-30];
    NSDate *startDate = [calendar dateByAddingComponents:offsetComponents toDate:curDate options:0];
    comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:startDate];
    [comps setHour:0];
    [comps setMinute:0];
    [comps setSecond:0];
    NSDate *newStartDate = [calendar dateFromComponents:comps];

    [self showStatsForStartDate:newStartDate endDate:endDate];
}

- (IBAction)statsLast60days:(id)sender
{
    NSDate *curDate = [NSDate date];
    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDateComponents* comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate];

    // End of today
    [comps setHour:23];
    [comps setMinute:59];
    [comps setSecond:59];
    NSDate *endDate = [calendar dateFromComponents:comps];

    // today - 60 days
    NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
    [offsetComponents setDay:-60];
    NSDate *startDate = [calendar dateByAddingComponents:offsetComponents toDate:curDate options:0];
    comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:startDate];
    [comps setHour:0];
    [comps setMinute:0];
    [comps setSecond:0];
    NSDate *newStartDate = [calendar dateFromComponents:comps];

    [self showStatsForStartDate:newStartDate endDate:endDate];
}

- (IBAction)statsCurrentYear:(id)sender
{
    NSDate *curDate = [NSDate date];
    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDateComponents* comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate];

    // January 1st
    [comps setDay:1];
    [comps setMonth:1];
    [comps setHour:0];
    [comps setMinute:0];
    [comps setSecond:0];
    NSDate *startDate = [calendar dateFromComponents:comps];

    // Last of month
    [comps setMonth:12];
    [comps setDay:31];
    [comps setHour:23];
    [comps setMinute:59];
    [comps setSecond:59];
    NSDate *endDate = [calendar dateFromComponents:comps];

    [self showStatsForStartDate:startDate endDate:endDate];
}

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

    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDateComponents* comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:self.startDatePicker.date];

    [comps setHour:0];
    [comps setMinute:0];
    [comps setSecond:0];
    NSDate *startDate = [calendar dateFromComponents:comps];

    comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:self.endDatePicker.date];
    [comps setHour:23];
    [comps setMinute:59];
    [comps setSecond:59];
    NSDate *endDate = [calendar dateFromComponents:comps];

    [self showStatsForStartDate:startDate endDate:endDate];
}


- (void)showStatsForStartDate:(NSDate *)startDate endDate:(NSDate *)endDate
{
    self.currentStartDate = startDate;
    self.currentEndDate = endDate;
    [self performSegueWithIdentifier:@"ShowStatisticsSegue" sender:self];
}


- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"ShowStatisticsSegue"])
    {
        StatsTabBarController *destController = (StatsTabBarController *)segue.destinationViewController;
        destController.startDate = self.currentStartDate;
        destController.endDate = self.currentEndDate;
    }
}


@end