//
//  DXAlertView.m
//  Elephant
//
//  Created by dyy on 2018/1/19.
//  Copyright © 2018年 dyy. All rights reserved.
//

#define AlertView_W    HitoActureWidth(260.f)
#define DXATitle_H     20.0f
#define MessageMin_H    80.0f       //messagelab的最小高度
#define DXABtn_H        35.0f
//屏幕宽度与高度
#define SCREEN_WIDTH   [UIScreen mainScreen].bounds.size.width

#define SCREENH_HEIGHT [UIScreen mainScreen].bounds.size.height

//比例宽和高(以6为除数)
#define HitoActureHeight(height)  roundf(height/375.0 * SCREEN_WIDTH)

#define HitoActureWidth(Width)  roundf(Width/667.0 * SCREENH_HEIGHT)

#define FONT_17 [UIScreen mainScreen].bounds.size.width > 320 ? [UIFont systemFontOfSize:17.f] : [UIFont systemFontOfSize:13.5f]

#define FONT_15 [UIScreen mainScreen].bounds.size.width > 320 ? [UIFont systemFontOfSize:15.f] : [UIFont systemFontOfSize:12.f]

#define MAIN_COLOR ColorRGBA(118, 216, 206, 1)

#define ColorRGBA(r, g, b, a) ([UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:(a)])

#import "DXAlertView.h"
#import "UILabel+ChangeLineSpaceAndWordSpace.h"

@interface DXAlertView()<UIGestureRecognizerDelegate>
@property (nonatomic,strong) UIView *alertview;
@property (nonatomic,strong)UILabel *titleLab;
@property (nonatomic,strong)UILabel *messageLab;
@property (nonatomic,strong)UIButton *cancelBtn;
@property (nonatomic,strong)UIButton *otherBtn;
@end

@implementation DXAlertView

-(instancetype)initWithTitle:(NSString *)title message:(NSString *)message cancelBtnTitle:(NSString *)cancelTitle otherBtnTitle:(NSString *)otherBtnTitle
{
    self = [super init];
    if (self) {
        self.frame = [UIScreen mainScreen].bounds;
        
        if (title) {
            self.titleLab = [[UILabel alloc] initWithFrame:CGRectMake(0, 10, AlertView_W, DXATitle_H)];
            self.titleLab.text=title;
            self.titleLab.textAlignment=NSTextAlignmentCenter;
            self.titleLab.textColor=[UIColor blackColor];
            self.titleLab.font=FONT_17;
        }
        
        CGFloat messageLabSpace = 15;
        self.messageLab=[[UILabel alloc] init];
        self.messageLab.backgroundColor=[UIColor whiteColor];
        self.messageLab.text=message;
        self.messageLab.textColor=[UIColor lightGrayColor];
        self.messageLab.font=FONT_15;
        self.messageLab.numberOfLines=0;
        self.messageLab.textAlignment=NSTextAlignmentCenter;
        self.messageLab.lineBreakMode=NSLineBreakByTruncatingTail;
        self.messageLab.characterSpace=1;
        self.messageLab.lineSpace=2;
        CGSize labSize = [self.messageLab getLableRectWithMaxWidth:AlertView_W-messageLabSpace*2];
        CGFloat messageLabAotuH = labSize.height < MessageMin_H?MessageMin_H:labSize.height;
        self.messageLab.frame=CGRectMake(messageLabSpace, _titleLab.frame.size.height+self.titleLab.frame.origin.y +10, AlertView_W-messageLabSpace*2, messageLabAotuH);
        
        if (cancelTitle) {
            self.cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            [self.cancelBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
            [self.cancelBtn setTitle:cancelTitle forState:UIControlStateNormal];
            self.cancelBtn.titleLabel.font=FONT_15;
            self.cancelBtn.layer.cornerRadius=3;
            self.cancelBtn.layer.masksToBounds=YES;
            self.cancelBtn.backgroundColor = [UIColor groupTableViewBackgroundColor];
            [self.cancelBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
            [self.alertview addSubview:self.cancelBtn];
        }
        if (otherBtnTitle) {
            self.otherBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            [self.otherBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
            [self.otherBtn setTitle:otherBtnTitle forState:UIControlStateNormal];
            self.otherBtn.titleLabel.font=FONT_15;
            self.otherBtn.layer.cornerRadius=3;
            self.otherBtn.layer.masksToBounds=YES;
            self.otherBtn.backgroundColor = MAIN_COLOR;
            [self.otherBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
            [self.alertview addSubview:self.otherBtn];
        }
        
        CGFloat btn_y =  _titleLab.frame.size.height+10 + +self.titleLab.frame.origin.y + self.messageLab.frame.size.height +10;

        if (cancelTitle && !otherBtnTitle) {
            self.cancelBtn.tag=0;
            self.cancelBtn.frame =CGRectMake(15,btn_y, AlertView_W-30, DXABtn_H);
        }
        else if (!cancelTitle && otherBtnTitle)
        {
            self.otherBtn.tag=1;
            self.otherBtn.frame=CGRectMake(15,btn_y, AlertView_W-30, DXABtn_H);
        }
        else if (cancelTitle && otherBtnTitle)
        {
            _cancelBtn.tag=0;
            _otherBtn.tag=1;
            CGFloat btnSpace = 20;//两个btn之间的间距
            CGFloat btn_w =(AlertView_W-15*2-btnSpace)/2;
            _cancelBtn.frame=CGRectMake(15, btn_y, btn_w, DXABtn_H);
            _otherBtn.frame=CGRectMake(btn_w+15+20, btn_y, btn_w, DXABtn_H);
            
        }
        self.alertview.frame = CGRectMake(0, 0, AlertView_W, _titleLab.frame.size.height+10 + +self.titleLab.frame.origin.y + self.messageLab.frame.size.height +10 + DXABtn_H + 10);
        self.alertview.center = self.center;
        [self addSubview:self.alertview];
        
        [self.alertview addSubview:self.titleLab];
        [self.alertview addSubview:self.messageLab];


    }
    return self;
}

-(UIView *)alertview
{
    if (_alertview == nil) {
        _alertview = [[UIView alloc] init];
        _alertview.backgroundColor = [UIColor whiteColor];
        _alertview.layer.cornerRadius=5.0;
        _alertview.layer.masksToBounds=YES;
        _alertview.userInteractionEnabled=YES;
    }
    return _alertview;
}

-(void)show
{
    self.backgroundColor = [UIColor clearColor];
    [[UIApplication sharedApplication].keyWindow addSubview:self];
    
    CGAffineTransform transform = CGAffineTransformScale(CGAffineTransformIdentity,1.0,1.0);
    
    self.alertview.transform = CGAffineTransformScale(CGAffineTransformIdentity,0.2,0.2);
    self.alertview.alpha = 0;
    [UIView animateWithDuration:0.3 delay:0.1 usingSpringWithDamping:0.5 initialSpringVelocity:10 options:UIViewAnimationOptionCurveLinear animations:^{
        self.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:.4f];
        self.alertview.transform = transform;
        self.alertview.alpha = 1;
    } completion:^(BOOL finished) {
        
    }];
}

-(void)dismissAlertView{
    [UIView animateWithDuration:0.3 animations:^{
        [self removeFromSuperview];
    }];
}

-(void)btnClick:(UIButton *)btn{
    if (self.clickBlock) {
        self.clickBlock(btn.tag);
        [self dismissAlertView];
        return;
    }
    
    if ([self.delegate respondsToSelector:@selector(dxAlertView:clickedButtonAtIndex:)]) {
        [self.delegate dxAlertView:self clickedButtonAtIndex:btn.tag];
    }
    [self dismissAlertView];
    
}
#pragma  mark UIGestureRecognizerDelegate
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    
    if ([touch.view isDescendantOfView:self.alertview]) {
        return NO;
    }
    return YES;
}
@end