duoshoubang/FirstLink/Compoments/详情模块/商品详情/View/SpecSelectView/FKSelectSpec...

//
//  FKSelectSpecAmountView.m
//  FirstLink
//
//  Created by jack on 16/1/18.
//  Copyright © 2016年 FirstLink. All rights reserved.
//

#import "FKSelectSpecAmountView.h"

@interface FKSelectSpecAmountView ()

@property (nonatomic, strong) UIButton          *addBtn;
@property (nonatomic, strong) UIButton          *reductBtn;
@property (nonatomic, strong) UILabel           *numberLabel;

@end

@implementation FKSelectSpecAmountView

- (instancetype)initWithFrame:(CGRect)frame{
    if (self = [super initWithFrame:frame]) {
        [self addAllSubviews];
    }
    return self;
}

- (void)configWithSpecDataCenter:(FKProductSpecDataCenter *)dataCenter{
    NSUInteger stockCount = [dataCenter getTotalStock];
    FKProductItem *targetItem = [dataCenter getSelectedProductItem];
    if (targetItem) {
        stockCount = [targetItem realStockCount];
    }
    if (stockCount <= 10){
        self.remainLabel.hidden = NO;
        self.remainLabel.text = [NSString stringWithFormat:@"(剩余%lu件)", (unsigned long)stockCount];
        if (stockCount <= 0) self.remainLabel.text = @"缺货";
    } else{
        self.remainLabel.hidden = YES;
    }
}

#pragma mark - Layout

- (void)addAllSubviews{
    [self addSubview:self.numberLabel];
    [self addSubview:self.addBtn];
    [self addSubview:self.reductBtn];
    [self addSubview:self.amountLabel];
    
    [self.numberLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self).offset(15);
        make.centerY.equalTo(self);
    }];
    
    [self.addBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self).offset(- 15);
        make.centerY.equalTo(self);
        make.width.height.mas_equalTo(27);
    }];
    
    [self.amountLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.addBtn.mas_left).offset(- 2);
        make.top.height.equalTo(self.addBtn);
        make.width.equalTo(@60);
    }];
    
    [self.reductBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.width.height.equalTo(self.addBtn);
        make.right.equalTo(self.amountLabel.mas_left).offset(- 2);
    }];
    
    [self addSubview:self.remainLabel];
    [self.remainLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.reductBtn.mas_left).offset(-10);
        make.centerY.equalTo(self.reductBtn);
    }];

}

#pragma mark - propety

- (void)clickAddBtn:(UIButton *)sender{
    NSInteger count = self.amountLabel.text.integerValue + 1;
    self.amountLabel.text = [NSString stringWithFormat:@"%ld", (long)count];
}

- (void)clickReduceBtn:(UIButton *)sender{
    NSInteger count = self.amountLabel.text.integerValue - 1;
    if (count <= 0) count = 1;
    self.amountLabel.text = [NSString stringWithFormat:@"%ld", (long)count];
}

#pragma mark - property

- (UILabel *)amountLabel{
    if (_amountLabel == nil) {
        _amountLabel = [[UILabel alloc]init];
        _amountLabel.layer.borderWidth = 0.5f;
        _amountLabel.layer.borderColor = [UIColorFromRGB(0xcccccc) CGColor];
        _amountLabel.textAlignment = NSTextAlignmentCenter;
        _amountLabel.lineBreakMode = NSLineBreakByTruncatingTail;
        _amountLabel.numberOfLines = 1;
        _amountLabel.textColor = UIColorFromRGB(0x333333);
        _amountLabel.text = @"1";
    }
    return _amountLabel;
}

- (UILabel *)remainLabel {
    if (_remainLabel == nil) {
        _remainLabel = [[UILabel alloc] init];
        _remainLabel.font = [UIFont systemFontOfSize:12];
        _remainLabel.textAlignment = NSTextAlignmentCenter;
        _remainLabel.textColor = UIColorFromRGB(0xff6362);
        _remainLabel.hidden = YES;
    }
    return _remainLabel;
}

- (UIButton *)addBtn{
    if (_addBtn == nil) {
        _addBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        [_addBtn setImage:[UIImage imageNamed:@"specification_body_add_n"] forState:UIControlStateNormal];
        [_addBtn addTarget:self action:@selector(clickAddBtn:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _addBtn;
}

- (UIButton *)reductBtn{
    if (_reductBtn == nil) {
        _reductBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        [_reductBtn setImage:[UIImage imageNamed:@"specification_body_lower_n"] forState:UIControlStateNormal];
        [_reductBtn addTarget:self action:@selector(clickReduceBtn:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _reductBtn;
}

- (UILabel *)numberLabel{
    if (_numberLabel == nil) {
        _numberLabel = [[UILabel alloc]init];
        _numberLabel.backgroundColor = [UIColor clearColor];
        _numberLabel.font = [UIFont systemFontOfSize:15];
        _numberLabel.textColor = UIColorFromRGB(0x333333);
        _numberLabel.text = @"数量";
    }
    return _numberLabel;
}

@end