//
//  JZNumberKeyBoard.m
//  JIZHANG
//
//  Created by kuxuan on 2018/1/25.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "JZNumberKeyBoard.h"

@interface JZNumberKeyBoard()
@property (nonatomic,strong)UIButton *completeButton;
@property (nonatomic,assign)BOOL complete;                 //是否允许8位
@property (nonatomic,assign)BOOL isFirst;                  //是否是第一次输入

@end

@implementation JZNumberKeyBoard

+ (instancetype)sharedBoard{
    
    static JZNumberKeyBoard *keyBoard;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        keyBoard = [[self alloc]init];
        [keyBoard setupWindow];
    });
    return keyBoard;
}

- (void)setupWindow{
    
    self.complete = NO;
    self.isFirst = YES;
    
    self.editString = [NSMutableString stringWithString:@""];
    self.window = [[UIView alloc]initWithFrame:CGRectMake(0, SCREEN_HEIGHT - 200, SCREEN_WIDTH, 200)];
//    self.window.windowLevel = UIWindowLevelNormal + 33;
//    self.window.rootViewController = [[UIViewController alloc]init];
//    [self.window makeKeyAndVisible];
    
    NSArray *array1 = @[@"1",@"2",@"3",@"+",@"4",@"5",@"6",@"-"];
    for (int i = 0; i < 8; i++) {
        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
        button.frame = CGRectMake(SCREEN_WIDTH/4*(i%4), 50*(i/4), SCREEN_WIDTH/4, 50);
        button.backgroundColor = [UIColor JZColorWithHex:0xffffff];
        button.titleLabel.font = FONT_SYS(20);
        [button setTitle:array1[i] forState:UIControlStateNormal];
        [button setTitleColor:[UIColor JZColorWithHex:0x333333] forState:UIControlStateNormal];
        button.tag = 777 + i;
        [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
        button.layer.borderColor = [UIColor JZColorWithHex:0xd8d8d8].CGColor;
        button.layer.borderWidth = 0.5;
        [self.window addSubview:button];
    }
    NSArray *array2 = @[@"7",@"8",@"9",@".",@"0",@"ic_delete"];
    for (int i = 0; i < 6; i++) {
        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
        button.frame = CGRectMake(SCREEN_WIDTH/4*(i%3), 50*(i/3) + 100, SCREEN_WIDTH/4, 50);
        button.backgroundColor = [UIColor JZColorWithHex:0xffffff];
        button.titleLabel.font = FONT_SYS(20);
        button.tag = 785 + i;
        [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
        if (i == 5) {
            [button setImage:[UIImage imageNamed:@"ic_delete"] forState:UIControlStateNormal];
        }else{
            [button setTitle:array2[i] forState:UIControlStateNormal];
            [button setTitleColor:[UIColor JZColorWithHex:0x333333] forState:UIControlStateNormal];
        }
        
        button.layer.borderColor = [UIColor JZColorWithHex:0xd8d8d8].CGColor;
        button.layer.borderWidth = 0.5;
        [self.window addSubview:button];
    }
    
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(SCREEN_WIDTH*3/4, 100, SCREEN_WIDTH/4, 100);
    button.backgroundColor = [UIColor JZColorWithHex:0xffffff];
    button.titleLabel.font = FONT_SYS(18);
    button.tag = 791;
    [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:@"完成" forState:UIControlStateNormal];
    button.backgroundColor = [UIColor baseColor];
    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    button.layer.borderColor = [UIColor JZColorWithHex:0xd8d8d8].CGColor;
    button.layer.borderWidth = 0.5;
    [self.window addSubview:button];
}

- (void)buttonAction:(UIButton *)btn{
    if (self.isFirst == YES) {
        self.isFirst = NO;
        if (![btn.currentTitle isEqualToString:@"+"]&&![btn.currentTitle isEqualToString:@"-"]) {
            self.editString = @"";
        }
    }
    
    
    if ([self.editString containsString:@"+"]||[self.editString containsString:@"-"]) {
        UIButton *btn = [self.window viewWithTag:791];
        [btn setTitle:@"=" forState:UIControlStateNormal];
    }
    if ([btn.currentTitle isEqualToString:@"="]) {
        self.complete = YES;
    }
    if (self.complete == NO) {
        if (self.editString.length >= 8) {
            if ([btn.currentTitle isEqualToString:@"+"]||[btn.currentTitle isEqualToString:@"-"]) {
                
            }else if ([self.editString containsString:@"+"]||[self.editString containsString:@"-"]) {
                NSArray *stringArray = [self.editString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"+-"]];
                for (int i = 1;i < stringArray.count; i ++) {
                    if ([stringArray[i] length] >= 8) {
                        return;
                    }
                }
            }else{
                if (btn.currentTitle.length != 0) {
                    return;
                }
                
            }
        }
    }
    
    switch (btn.tag - 777) {
            //1
        case 0:
            self.editString = [self.editString stringByAppendingString:@"1"];
            break;
            //2
        case 1:
            self.editString = [self.editString stringByAppendingString:@"2"];
            break;
            //3
        case 2:
            self.editString = [self.editString stringByAppendingString:@"3"];
            break;
            //+
        case 3:{
            if (self.editString.length) {
                NSString *last = [self.editString substringFromIndex:self.editString.length-1];
                if ([last isEqualToString:@"+"]||[last isEqualToString:@"-"]) {
                    
                }else{
                    self.editString = [self.editString stringByAppendingString:@"+"];
                }
            }else{
                self.editString = [self.editString stringByAppendingString:@"+"];
            }
            
        }
            
            break;
            //4
        case 4:
            self.editString = [self.editString stringByAppendingString:@"4"];
            break;
            //5
        case 5:
            self.editString = [self.editString stringByAppendingString:@"5"];
            break;
            //6
        case 6:
            self.editString = [self.editString stringByAppendingString:@"6"];
            break;
            //-
        case 7:
            
            {
                if (self.editString.length) {
                    NSString *last = [self.editString substringFromIndex:self.editString.length-1];
                    if ([last isEqualToString:@"+"]||[last isEqualToString:@"-"]) {
                        
                    }else{
                        self.editString = [self.editString stringByAppendingString:@"-"];
                    }
                }else{
                    self.editString = [self.editString stringByAppendingString:@"-"];
                }
                
            }
            
            break;
            //7
        case 8:
            self.editString = [self.editString stringByAppendingString:@"7"];
            break;
            //8
        case 9:
            self.editString = [self.editString stringByAppendingString:@"8"];
            break;
            //9
        case 10:
            self.editString = [self.editString stringByAppendingString:@"9"];
            break;
            //.
        case 11:{
            NSString *last;
            if (self.editString.length >= 1) {
                last = [self.editString substringFromIndex:self.editString.length-1];
            }
            if (self.editString.length == 0) {
                self.editString = [self.editString stringByAppendingString:@"0."];
            }else if ([last isEqualToString:@"+"]||[last isEqualToString:@"-"]){
                self.editString = [self.editString stringByAppendingString:@"0."];
            }
            else{
                self.editString = [self.editString stringByAppendingString:@"."];
            }
            
        }
            
            break;
            //0
        case 12:
            self.editString = [self.editString stringByAppendingString:@"0"];
            break;
            //去除
        case 13:
        {
            if (self.editString.length != 0) {
                self.editString = [self.editString substringToIndex:self.editString.length - 1];
            }
            
        }
            break;
            //完成
        case 14:
        {
            [self setCompleteAction:btn];
        }
            break;
            
        
        default:
            break;
    }
    if (btn.tag - 777 != 14) {
        [_delegate numberKeyBoardDidEditing:self text:self.editString];
    }
    if ([self.editString containsString:@"+"]||[self.editString containsString:@"-"]) {
        if (self.editString.length == 1) {
            self.editString = @"";
        }
    }
    self.complete = NO;
}

- (void)setCompleteAction:(UIButton *)btn{
//    self.complete = YES;
    if ([btn.currentTitle isEqualToString:@"="]) {
        if (![self.editString containsString:@"+"]&&![self.editString containsString:@"-"]) {
            self.editString = @"";
        }
        NSArray *stringArray = [self.editString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"+-"]];
        float result = 0;
        for (int i = 0; i < stringArray.count; i ++) {
            NSString *str = stringArray[i];
            if (str.length == 0) {
                [MBProgressHUD showError:@"输入错误"];
                return;
            }else{
                if ([self.editString containsString:@"+"]) {
                    result = result + str.floatValue;
                }else{
                    if (i == 0) {
                        result = result + str.floatValue;
                    }else{
                        result = result - str.floatValue;
                    }
                }
                
            }
         }
        self.editString = [NSString stringWithFormat:@"%.2f",result];
        [_delegate numberKeyBoardDidEditing:self text:self.editString];
        [btn setTitle:@"完成" forState:UIControlStateNormal];
        self.complete = YES;
        
    }else{
        [_delegate numberKeyBoardDidEndEditing:self text:self.editString];
    }
}

- (void)clear{
    self.editString = @"";
    self.complete = NO;
    self.isFirst = YES;
}

@end