//
//  THDatePickerView.m
//  rongyp-company
//
//  Created by Apple on 2016/11/16.
//  Copyright © 2016年 Apple. All rights reserved.
//

#import "THDatePickerView.h"
#import "Header.h"
@interface THDatePickerView () <UIPickerViewDelegate, UIPickerViewDataSource>
@property (strong, nonatomic) UIPickerView *pickerView; // 选择器
@property (strong, nonatomic) UIView *toolView; // 工具条
@property (strong, nonatomic) UILabel *titleLbl; // 标题

@property (strong, nonatomic) NSMutableArray *dataArray; // 数据源
@property (copy, nonatomic) NSString *selectStr; // 选中的时间


@property (strong, nonatomic) NSMutableArray *yearArr; // 年数组
@property (strong, nonatomic) NSMutableArray *monthArr; // 月数组
@property (strong, nonatomic) NSMutableArray *dayArr; // 日数组
@property (strong, nonatomic) NSMutableArray *hourArr; // 时数组
@property (strong, nonatomic) NSMutableArray *minuteArr; // 分数组
@property (strong, nonatomic) NSArray *timeArr; // 当前时间数组

@property (copy, nonatomic) NSString *year; // 选中年
@property (copy, nonatomic) NSString *month; //选中月
@property (copy, nonatomic) NSString *day; //选中日
@property (copy, nonatomic) NSString *hour; //选中时
@property (copy, nonatomic) NSString *minute; //选中分

@end

#define THColorRGB(rgb)    [UIColor colorWithRed:(rgb)/255.0 green:(rgb)/255.0 blue:(rgb)/255.0 alpha:1.0]

@implementation THDatePickerView

#pragma mark - init
/// 初始化
- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor whiteColor];

        self.timeArr = [NSArray array];

        self.dataArray = [NSMutableArray array];
        self.minuteArr = [NSMutableArray array];
        [self.dataArray addObject:self.yearArr];
        [self.dataArray addObject:self.monthArr];
        [self.dataArray addObject:self.dayArr];
        [self.dataArray addObject:self.hourArr];

        [self configData];
        [self configToolView];
        [self configPickerView];
    }
    return self;
}

- (void)configData {

    self.isSlide = YES;
    self.minuteInterval = 5;

    NSDate *date = [NSDate date];
    NSDateFormatter* dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm"];

    self.date = [dateFormatter stringFromDate:date];
}


#pragma mark - 配置界面
/// 配置工具条
- (void)configToolView {

    self.toolView = [[UIView alloc] init];
    self.toolView.frame = CGRectMake(0, 0, self.frame.size.width, 44);
    [self addSubview:self.toolView];
    
    UIButton *saveBtn = [[UIButton alloc] init];
    saveBtn.frame = CGRectMake(self.frame.size.width - 50, 2, 40, 40);
    [saveBtn setTitle:@"确定" forState:UIControlStateNormal];
    [saveBtn setTitleColor:SXUIColorFromRGB(0x4e69ff) forState:UIControlStateNormal];
    [saveBtn addTarget:self action:@selector(saveBtnClick) forControlEvents:UIControlEventTouchUpInside];
    [self.toolView addSubview:saveBtn];
    
    UIButton *cancelBtn = [[UIButton alloc] init];
    cancelBtn.frame = CGRectMake(10, 2, 40, 40);
    [cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
    [cancelBtn setTitleColor:SXUIColorFromRGB(0x4e69ff) forState:UIControlStateNormal];
    [cancelBtn addTarget:self action:@selector(cancelBtnClick) forControlEvents:UIControlEventTouchUpInside];
    [self.toolView addSubview:cancelBtn];
    
    self.titleLbl = [[UILabel alloc] init];
    self.titleLbl.frame = CGRectMake(60, 2, self.frame.size.width - 120, 40);
    self.titleLbl.textAlignment = NSTextAlignmentCenter;
    self.titleLbl.textColor = THColorRGB(34);
    [self.toolView addSubview:self.titleLbl];
}

/// 配置UIPickerView
- (void)configPickerView {
    self.pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(self.toolView.frame), self.frame.size.width, self.frame.size.height - 44)];
    self.pickerView.backgroundColor = [UIColor whiteColor];
    self.pickerView.dataSource = self;
    self.pickerView.delegate = self;
    self.pickerView.showsSelectionIndicator = YES;
    [self addSubview:self.pickerView];
}

- (void)setTitle:(NSString *)title {
    _title = title;
    self.titleLbl.text = title;
}

- (void)setDate:(NSString *)date {
    _date = date;

    NSString *newDate = [[date stringByReplacingOccurrencesOfString:@"-" withString:@" "] stringByReplacingOccurrencesOfString:@":" withString:@" "];
    NSMutableArray *timerArray = [NSMutableArray arrayWithArray:[newDate componentsSeparatedByString:@" "]];
    [timerArray replaceObjectAtIndex:0 withObject:[NSString stringWithFormat:@"%@年", timerArray[0]]];
    [timerArray replaceObjectAtIndex:1 withObject:[NSString stringWithFormat:@"%@月", timerArray[1]]];
    [timerArray replaceObjectAtIndex:2 withObject:[NSString stringWithFormat:@"%@日", timerArray[2]]];
    [timerArray replaceObjectAtIndex:3 withObject:[NSString stringWithFormat:@"%@时", timerArray[3]]];
    [timerArray replaceObjectAtIndex:4 withObject:[NSString stringWithFormat:@"%@分", timerArray[4]]];
    self.timeArr = timerArray;
}

- (void)setMinuteInterval:(NSInteger)minuteInterval {
    _minuteInterval = minuteInterval;

    if (self.minuteArr.count > 0) {
        [self.minuteArr removeAllObjects];
        self.minuteArr = [self configMinuteArray];
        [self.dataArray replaceObjectAtIndex:self.dataArray.count - 1 withObject:self.minuteArr];
    } else {
        self.minuteArr = [self configMinuteArray];
        [self.dataArray addObject:self.minuteArr];
    }
}

- (void)show {
    self.year = self.timeArr[0];
    self.month = [NSString stringWithFormat:@"%ld月", [self.timeArr[1] integerValue]];
    self.day = [NSString stringWithFormat:@"%ld日", [self.timeArr[2] integerValue]];
    self.hour = [NSString stringWithFormat:@"%ld时", [self.timeArr[3] integerValue]];
    self.minute = self.minuteInterval == 1 ? [NSString stringWithFormat:@"%ld分", [self.timeArr[4] integerValue]] : self.minuteArr[self.minuteArr.count / 2];
    
    [self.pickerView selectRow:[self.yearArr indexOfObject:self.year] inComponent:0 animated:YES];
    /// 重新格式化转一下，是因为如果是09月/日/时，数据源是9月/日/时,就会出现崩溃
    [self.pickerView selectRow:[self.monthArr indexOfObject:self.month] inComponent:1 animated:YES];
    [self.pickerView selectRow:[self.dayArr indexOfObject:self.day] inComponent:2 animated:YES];
    [self.pickerView selectRow:[self.hourArr indexOfObject:self.hour] inComponent:3 animated:YES];
    [self.pickerView selectRow:self.minuteInterval == 1 ? ([self.minuteArr indexOfObject:self.minute]) : (self.minuteArr.count / 2) inComponent:4 animated:YES];
    
    /// 刷新日
    [self refreshDay];
}

#pragma mark - 点击方法
/// 保存按钮点击方法
- (void)saveBtnClick {
    NSLog(@"点击了保存");
    
    NSString *month = self.month.length == 3 ? [NSString stringWithFormat:@"%ld", self.month.integerValue] : [NSString stringWithFormat:@"0%ld", self.month.integerValue];
    NSString *day = self.day.length == 3 ? [NSString stringWithFormat:@"%ld", self.day.integerValue] : [NSString stringWithFormat:@"0%ld", self.day.integerValue];
    NSString *hour = self.hour.length == 3 ? [NSString stringWithFormat:@"%ld", self.hour.integerValue] : [NSString stringWithFormat:@"0%ld", self.hour.integerValue];
    NSString *minute = self.minute.length == 3 ? [NSString stringWithFormat:@"%ld", self.minute.integerValue] : [NSString stringWithFormat:@"0%ld", self.minute.integerValue];
    
    self.selectStr = [NSString stringWithFormat:@"%ld-%@-%@ %@:%@:00", [self.year integerValue], month, day, hour, minute];
    if ([self.delegate respondsToSelector:@selector(datePickerViewSaveBtnClickDelegate:)]) {
        [self.delegate datePickerViewSaveBtnClickDelegate:self.selectStr];
    }
}
/// 取消按钮点击方法
- (void)cancelBtnClick {
    NSLog(@"点击了取消");
    if ([self.delegate respondsToSelector:@selector(datePickerViewCancelBtnClickDelegate)]) {
        [self.delegate datePickerViewCancelBtnClickDelegate];
    }
}
#pragma mark - UIPickerViewDelegate and UIPickerViewDataSource
/// UIPickerView返回多少组
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return self.dataArray.count;
}

/// UIPickerView返回每组多少条数据
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    return  [self.dataArray[component] count] * 200;
}

/// UIPickerView选择哪一行
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
    
    NSInteger time_integerValue = [self.timeArr[component] integerValue];

    switch (component) {
        case 0: { // 年
            
            NSString *year_integerValue = self.yearArr[row%[self.dataArray[component] count]];
            if (!self.isSlide) {
                self.year = year_integerValue;
                return;
            }
//            if (year_integerValue.integerValue < time_integerValue) {
//                [pickerView selectRow:[self.dataArray[component] indexOfObject:self.timeArr[component]] inComponent:component animated:YES];
//            } else {
                self.year = year_integerValue;
//                /// 刷新日
                [self refreshDay];
//                /// 根据当前选择的年份和月份获取当月的天数
                NSString *dayStr = [self getDayNumber:[self.year integerValue] month:[self.month integerValue]];
                if (self.dayArr.count > [dayStr integerValue]) {
                    if (self.day.integerValue > [dayStr integerValue]) {
                        [pickerView selectRow:[self.dataArray[2] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:2 animated:YES];
                        self.day = [dayStr stringByAppendingString:@"日"];
                    }
                }
//            }
        } break;
        case 1: { // 月
            
            NSString *month_value = self.monthArr[row%[self.dataArray[component] count]];

            if (!self.isSlide) {
                self.month = month_value;
                /// 刷新日
                [self refreshDay];
                return;
            }

//            // 如果选择年大于当前年 就直接赋值月
//            if ([self.year integerValue] > [self.timeArr[0] integerValue]) {
//
//                self.month = month_value;
//
//                /// 根据当前选择的年份和月份获取当月的天数
//                NSString *dayStr = [self getDayNumber:[self.year integerValue] month:[self.month integerValue]];
//                if (self.dayArr.count > [dayStr integerValue]) {
//                    if (self.day.integerValue > [dayStr integerValue]) {
//                        if (self.isSlide) {
//                            [pickerView selectRow:[self.dataArray[2] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:2 animated:YES];
//                            self.day = [dayStr stringByAppendingString:@"日"];
//                        } else {
//                            self.month = month_value;
//                        }
//                    }
//                }
//                // 如果选择的年等于当前年，就判断月份
//            } else if ([self.year integerValue] == [self.timeArr[0] integerValue]) {
//                // 如果选择的月份小于当前月份 就刷新到当前月份
//                if (month_value.integerValue < [self.timeArr[component] integerValue]) {
//                    if (self.isSlide) {
//                        [pickerView selectRow:[self.dataArray[component] indexOfObject:[NSString stringWithFormat:@"%ld月", [self.timeArr[component] integerValue]]] inComponent:component animated:YES];
//                    } else {
//                        self.month = month_value;
//                    }
//                    // 如果选择的月份大于当前月份，就直接赋值月份
//                } else {
                    self.month = month_value;
                    /// 根据当前选择的年份和月份获取当月的天数
                    NSString *dayStr = [self getDayNumber:[self.year integerValue] month:[self.month integerValue]];
                    if (self.dayArr.count > dayStr.integerValue) {
                        if (self.day.integerValue > dayStr.integerValue) {
                            [pickerView selectRow:[self.dataArray[2] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:2 animated:YES];
                            self.day = [dayStr stringByAppendingString:@"日"];
                        }
                    }
//                }
//            }
            /// 刷新日
            [self refreshDay];

        } break;
        case 2: { // 日
            /// 根据当前选择的年份和月份获取当月的天数
            NSString *dayStr = [self getDayNumber:[self.year integerValue] month:[self.month integerValue]];
            // 如果选择年大于当前年 就直接赋值日
            NSString *day_value = self.dayArr[row%[self.dataArray[component] count]];

            if (!self.isSlide) {
                self.day = day_value;
                return;
            }

//            if ([self.year integerValue] > [self.timeArr[0] integerValue]) {
//                if (self.dayArr.count <= [dayStr integerValue]) {
//                    self.day = day_value;
//                } else {
//                    if (day_value.integerValue <= [dayStr integerValue]) {
//                        self.day = day_value;
//                    } else {
//                        [pickerView selectRow:[self.dataArray[component] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:component animated:YES];
//                    }
//                }
//                // 如果选择的年等于当前年，就判断月份
//            } else if ([self.year integerValue] == [self.timeArr[0] integerValue]) {
//                // 如果选择的月份大于当前月份 就直接复制
//                if ([self.month integerValue] > [self.timeArr[1] integerValue]) {
//                    if (self.dayArr.count <= [dayStr integerValue]) {
//                        self.day = day_value;
//                    } else {
//                        if (day_value.integerValue <= [dayStr integerValue]) {
//                            self.day = day_value;
//                        } else {
//                            [pickerView selectRow:[self.dataArray[component] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:component animated:YES];
//                        }
//                    }
//                    // 如果选择的月份等于当前月份，就判断日
//                } else if ([self.month integerValue] == [self.timeArr[1] integerValue]) {
//                    // 如果选择的日小于当前日，就刷新到当前日
//                    if (day_value.integerValue < [self.timeArr[component] integerValue]) {
//                        if (self.isSlide) {
//                            [pickerView selectRow:[self.dataArray[component] indexOfObject:[NSString stringWithFormat:@"%ld日", time_integerValue]] inComponent:component animated:YES];
//                        } else {
//                            self.day = day_value;
//                        }
//                        // 如果选择的日大于当前日，就复制日
//                    } else {
//                        if (self.dayArr.count <= [dayStr integerValue]) {
                            self.day = day_value;
//                        } else {
//                            if ([self.dayArr[row%[self.dataArray[component] count]] integerValue] <= [dayStr integerValue]) {
//                                self.day = day_value;
//                            } else {
//                                [pickerView selectRow:[self.dataArray[component] indexOfObject:[dayStr stringByAppendingString:@"日"]] inComponent:component animated:YES];
//                            }
//                        }
//                    }
//                }
//            }
        } break;
        case 3: { // 时
            NSString *hour_value = self.hourArr[row%[self.dataArray[component] count]];
            if (!self.isSlide) {
                self.hour = hour_value;
                return;
            }
            // 如果选择年大于当前年 就直接赋值时
//            if ([self.year integerValue] > [self.timeArr[0] integerValue]) {
//                self.hour = hour_value;
//                // 如果选择的年等于当前年，就判断月份
//            } else if ([self.year integerValue] == [self.timeArr[0] integerValue]) {
//                // 如果选择的月份大于当前月份 就直接复制时
//                if ([self.month integerValue] > [self.timeArr[1] integerValue]) {
                    self.hour = hour_value;
//                    // 如果选择的月份等于当前月份，就判断日
//                } else if ([self.month integerValue] == [self.timeArr[1] integerValue]) {
//                    // 如果选择的日大于当前日，就直接复制时
//                    if ([self.day integerValue] > [self.timeArr[2] integerValue]) {
//                        self.hour = hour_value;
//                        // 如果选择的日等于当前日，就判断时
//                    } else if ([self.day integerValue] == [self.timeArr[2] integerValue]) {
//                        // 如果选择的时小于当前时，就刷新到当前时
//                        if ([self.hourArr[row%[self.dataArray[component] count]] integerValue] < [self.timeArr[3] integerValue]) {
//                            [pickerView selectRow:[self.dataArray[component] indexOfObject:self.timeArr[component]] inComponent:component animated:YES];??
//                            // 如果选择的时大于当前时，就直接赋值
//                        } else {
//                            self.hour = hour_value;
//                        }
//                    }
//                }
//            }
        } break;
        case 4: { // 分
            // 如果选择年大于当前年 就直接赋值时
            //            if ([self.year integerValue] > [self.timeArr[0] integerValue]) {
            self.minute = self.minuteArr[row%[self.dataArray[component] count]];
            //                // 如果选择的年等于当前年，就判断月份
            //            } else if ([self.year integerValue] == [self.timeArr[0] integerValue]) {
            //                // 如果选择的月份大于当前月份 就直接复制时
            //                if ([self.month integerValue] > [self.timeArr[1] integerValue]) {
            //                    self.minute = self.minuteArr[row%[self.dataArray[component] count]];
            //                    // 如果选择的月份等于当前月份，就判断日
            //                } else if ([self.month integerValue] == [self.timeArr[1] integerValue]) {
            //                    // 如果选择的日大于当前日，就直接复制时
            //                    if ([self.day integerValue] > [self.timeArr[2] integerValue]) {
            //                        self.minute = self.minuteArr[row%[self.dataArray[component] count]];
            //                        // 如果选择的日等于当前日，就判断时
            //                    } else if ([self.day integerValue] == [self.timeArr[2] integerValue]) {
            //                        // 如果选择的时大于当前时，就直接赋值
            //                        if ([self.hour integerValue] > [self.timeArr[3] integerValue]) {
            //                            self.minute = self.minuteArr[row%[self.dataArray[component] count]];
            //                        // 如果选择的时等于当前时,就判断分
            //                        } else if ([self.hour integerValue] == [self.timeArr[3] integerValue]) {
            //                            // 如果选择的分小于当前分，就刷新分
            //                            if ([self.minuteArr[row%[self.dataArray[component] count]] integerValue] < [self.timeArr[4] integerValue]) {
            //                                [pickerView selectRow:[self.dataArray[component] indexOfObject:self.timeArr[component]] inComponent:component animated:YES];
            //                            // 如果选择分大于当前分，就直接赋值
            //                            } else {
            //                                self.minute = self.minuteArr[row%[self.dataArray[component] count]];
            //                            }
            //                        }
            //                    }
            //                }
            //            }
        } break;
        default: break;
    }
}

/// UIPickerView返回每一行数据
- (nullable NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
    return  [self.dataArray[component] objectAtIndex:row%[self.dataArray[component] count]];
}
/// UIPickerView返回每一行的高度
- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component {
    return 44;
}
/// UIPickerView返回每一行的View
-(UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {
    UILabel *titleLbl;
    if (!view) {
        titleLbl = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, self.frame.size.width, 44)];
        titleLbl.font = [UIFont systemFontOfSize:15];
        titleLbl.textAlignment = NSTextAlignmentCenter;
    } else {
        titleLbl = (UILabel *)view;
    }
    titleLbl.text = [self.dataArray[component] objectAtIndex:row%[self.dataArray[component] count]];
    return titleLbl;
}


- (void)pickerViewLoaded:(NSInteger)component row:(NSInteger)row{
    NSUInteger max = 16384;
    NSUInteger base10 = (max/2)-(max/2)%row;
    [self.pickerView selectRow:[self.pickerView selectedRowInComponent:component] % row + base10 inComponent:component animated:NO];
}


/// 获取年份
- (NSMutableArray *)yearArr {
    if (!_yearArr) {
        _yearArr = [NSMutableArray array];
        for (int i = 1970; i < 2099; i ++) {
            [_yearArr addObject:[NSString stringWithFormat:@"%d年", i]];
        }
    }
    return _yearArr;
}

/// 获取月份
- (NSMutableArray *)monthArr {
    //    NSDate *today = [NSDate date];
    //    NSCalendar *c = [NSCalendar currentCalendar];
    //    NSRange days = [c rangeOfUnit:NSCalendarUnitMonth inUnit:NSCalendarUnitYear forDate:today];
    if (!_monthArr) {
        _monthArr = [NSMutableArray array];
        for (int i = 1; i <= 12; i ++) {
            [_monthArr addObject:[NSString stringWithFormat:@"%d月", i]];
        }
    }
    return _monthArr;
}

/// 获取当前月的天数
- (NSMutableArray *)dayArr {
    if (!_dayArr) {
        _dayArr = [NSMutableArray array];
        for (int i = 1; i <= 31; i ++) {
            [_dayArr addObject:[NSString stringWithFormat:@"%d日", i]];
        }
    }
    return _dayArr;
}

/// 获取小时
- (NSMutableArray *)hourArr {
    if (!_hourArr) {
        _hourArr = [NSMutableArray array];
        for (int i = 0; i < 24; i ++) {
            [_hourArr addObject:[NSString stringWithFormat:@"%d时", i]];
        }
    }
    return _hourArr;
}

/// 获取分钟
- (NSMutableArray *)configMinuteArray {
    NSMutableArray *minuteArray = [NSMutableArray array];
    for (int i = 0; i <= 60 - self.minuteInterval; i ++) {
        if (i % self.minuteInterval == 0) {
            [minuteArray addObject:[NSString stringWithFormat:@"%d分", i]];
            continue;
        }
    }
    return minuteArray;
}

// 比较选择的时间是否小于当前时间
- (int)compareDate:(NSString *)date01 withDate:(NSString *)date02{
    int ci;
    NSDateFormatter *df = [[NSDateFormatter alloc]init];
    [df setDateFormat:@"yyyy年,MM月,dd日,HH时,mm分"];
    NSDate *dt1 = [[NSDate alloc] init];
    NSDate *dt2 = [[NSDate alloc] init];
    dt1 = [df dateFromString:date01];
    dt2 = [df dateFromString:date02];
    NSComparisonResult result = [dt1 compare:dt2];
    switch (result) {
            //date02比date01大
        case NSOrderedAscending: ci=1;break;
            //date02比date01小
        case NSOrderedDescending: ci=-1;break;
            //date02=date01
        case NSOrderedSame: ci=0;break;
        default: NSLog(@"erorr dates %@, %@", dt2, dt1);break;
    }
    return ci;
}


- (void)refreshDay {
    NSMutableArray *arr = [NSMutableArray array];
    for (int i = 1; i < [self getDayNumber:self.year.integerValue month:self.month.integerValue].integerValue + 1; i ++) {
        [arr addObject:[NSString stringWithFormat:@"%d日", i]];
    }
    
    [self.dataArray replaceObjectAtIndex:2 withObject:arr];
    [self.pickerView reloadComponent:2];
}

- (NSString *)getDayNumber:(NSInteger)year month:(NSInteger)month{
    NSArray *days = @[@"31", @"28", @"31", @"30", @"31", @"30", @"31", @"31", @"30", @"31", @"30", @"31"];
    if (2 == month && 0 == (year % 4) && (0 != (year % 100) || 0 == (year % 400))) {
        return @"29";
    }
    return days[month - 1];
}



@end