//
//  LCPinYinSortHelper.m
//  LiveChat
//
//  Created by 张灿 on 2018/4/15.
//  Copyright © 2018年 caicai. All rights reserved.
//

#import "LCPinYinSortHelper.h"

@implementation LCPinYinSortHelper
+ (NSMutableArray *)getSearchFullPinyinBY:(NSString*)searhName{
    NSMutableArray *ans = [[NSMutableArray alloc] init];
    NSMutableArray* data = [NSMutableArray arrayWithArray:[LCSaveData getCityDict].allValues];
    for (NSString* str in data) {
        if ([[self getFullPinyin:str] hasPrefix:[self getFullPinyin:searhName]]) {
            [ans addObject:str];
        }else if([[self getShortPinyin:str] hasPrefix:[self getFullPinyin:searhName]]){
            [ans addObject:str];
        }
    }
    NSArray *serializeArray = [(NSArray *)ans sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {//排序
        int i;
        NSString *strA = ((NSString *)obj1).fullPinyin;
        NSString *strB = ((NSString *)obj2).fullPinyin;
        for (i = 0; i < strA.length && i < strB.length; i ++) {
            char a = [strA characterAtIndex:i];
            char b = [strB characterAtIndex:i];
            if (a > b) {
                return (NSComparisonResult)NSOrderedDescending;//上升
            }
            else if (a < b) {
                return (NSComparisonResult)NSOrderedAscending;//下降
            }
        }
        
        if (strA.length > strB.length) {
            return (NSComparisonResult)NSOrderedDescending;
        }else if (strA.length < strB.length){
            return (NSComparisonResult)NSOrderedAscending;
        }else{
            return (NSComparisonResult)NSOrderedSame;
        }
    }];
    
    
    return [NSMutableArray arrayWithArray:serializeArray];
    
}
+ (NSString*)getShortPinyin:(NSString*)str{
    NSMutableString *shortSpelling = [[NSMutableString alloc]init];
    for (NSInteger i = 0; i < [str length]; i++)
    {
        NSString *word = [str substringWithRange:NSMakeRange(i, 1)];
        NSString *pinyin = word.fullPinyin;
        
        if ([pinyin length])
        {
            [shortSpelling appendString:[pinyin substringToIndex:1]];
        }
    }
    return shortSpelling;
}
+ (NSString*)getFullPinyin:(NSString*)str{
    NSMutableString *fullSpelling = [[NSMutableString alloc]init];
    for (NSInteger i = 0; i < [str length]; i++)
    {
        NSString *word = [str substringWithRange:NSMakeRange(i, 1)];
        NSString *pinyin = word.fullPinyin;
        
        if ([pinyin length])
        {
            [fullSpelling appendString:pinyin];
        }
    }
    return fullSpelling;
}
+ (NSMutableArray *) getCityListDataBy:(NSMutableArray *)array{
    NSMutableArray *ans = [[NSMutableArray alloc] init];
    
    NSArray *serializeArray = [(NSArray *)array sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {//排序
        int i;
        NSString *strA = ((NSString *)obj1).pinYin;
        NSString *strB = ((NSString *)obj2).pinYin;
        for (i = 0; i < strA.length && i < strB.length; i ++) {
            char a = [strA characterAtIndex:i];
            char b = [strB characterAtIndex:i];
            if (a > b) {
                return (NSComparisonResult)NSOrderedDescending;//上升
            }
            else if (a < b) {
                return (NSComparisonResult)NSOrderedAscending;//下降
            }
        }
        
        if (strA.length > strB.length) {
            return (NSComparisonResult)NSOrderedDescending;
        }else if (strA.length < strB.length){
            return (NSComparisonResult)NSOrderedAscending;
        }else{
            return (NSComparisonResult)NSOrderedSame;
        }
    }];
    
    char lastC = '1';
    NSMutableArray *data;
    NSMutableArray *oth = [[NSMutableArray alloc] init];
    for (NSString *user in serializeArray) {
        char c = [user.pinYin characterAtIndex:0];
        if (!isalpha(c)) {
            [oth addObject:user];
        }
        else if (c != lastC){
            lastC = c;
            if (data && data.count > 0) {
                [ans addObject:data];
            }
            
            data = [[NSMutableArray alloc] init];
            [data addObject:user];
        }
        else {
            [data addObject:user];
        }
    }
    if (data && data.count > 0) {
        [ans addObject:data];
    }
    if (oth.count > 0) {
        [ans addObject:oth];
    }
    return ans;
}
+ (NSMutableArray *)getCityListSectionBy:(NSMutableArray *)array{
    NSMutableArray *section = [[NSMutableArray alloc] init];
    [section addObject:@"定位"];
//    [section addObject:UITableViewIndexSearch];
    for (NSArray *item in array) {
        NSString *user = [item objectAtIndex:0];
        char c = [user.pinYin characterAtIndex:0];
//        if (!isalpha(c)) {
//            [section addObject:@"定位"];
//        }
        [section addObject:[NSString stringWithFormat:@"%c", toupper(c)]];
    }
    return section;
}
@end