//
//  ContactVC.m
//  通讯录
//
//  Created by EchoShacolee on 2017/5/22.
//  Copyright © 2017年 lee. All rights reserved.
//

#import "ContactVC.h"
#import <Contacts/Contacts.h>
#import "ChineseToPinyin.h"
#import "ContactDetailVC.h"
#import "ContactResultVC.h"

@interface ContactVC ()<UITableViewDelegate,UITableViewDataSource,UISearchResultsUpdating,UISearchControllerDelegate,UISearchBarDelegate>
{
    //基本数据
    NSMutableArray * _detailData;
    NSMutableArray * _sectionTitles; // 每个分区的标题
    
    NSMutableArray * _AllNullData;
    NSMutableArray * _AllZiMu;
    
    
    UITableView * _tableview;
    
    //搜索相关
    NSMutableArray * _resultArr;
    NSMutableArray * _allUser;//不分组的所有数据
    ContactResultVC * _resultVC;
}

@property(nonatomic,strong)UISearchController * searchController;
@property(nonatomic,strong)UILabel * lab;//为打开通讯录提示

@end

@implementation ContactVC

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.navigationItem.title = @"通讯录";
    self.view.backgroundColor = KBackGroundColor;
    
    _detailData = [NSMutableArray new];
    _sectionTitles = [NSMutableArray new];
    _AllNullData = [NSMutableArray new];
    _AllZiMu = [NSMutableArray new];
    
    _resultArr = [NSMutableArray new];
    _allUser = [NSMutableArray new];

    for(char c ='A';c<='Z';c++){
        //当前字母
        NSString *zimu=[NSString stringWithFormat:@"%c",c];
        [_AllZiMu addObject:zimu];
        [_AllNullData addObject:[NSMutableArray new]];
    }
    
    [_AllZiMu addObject:@"#"];
    [_AllNullData addObject:[NSMutableArray new]];
    
    [self requestAuthorizationForAddressBook];//判断是否（每次改变权限，会导致app重启，都会经过这里）
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    self.tabBarController.tabBar.hidden = NO;
}


#pragma mark 通讯录相关

- (void)requestAuthorizationForAddressBook{
    CNAuthorizationStatus authorizationStatus = [CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts];
    //如果用户未做决定
    if (authorizationStatus == CNAuthorizationStatusNotDetermined) {
        CNContactStore *contactStore = [[CNContactStore alloc] init];
        [contactStore requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
            if (granted) {
                [self getData];
            } else {
                //用户拒绝
                dispatch_async(dispatch_get_main_queue(), ^{
                    [self.view addSubview:self.lab];
                });
                
            }
        }];
    }else if (authorizationStatus != CNAuthorizationStatusAuthorized){
        //用户拒绝 或者 app无权限
        if (_tableview) {//测试的时候每次改变权限都会重启app，所以这个判断似乎没必要
            [_tableview removeFromSuperview];
        }
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [self.view addSubview:self.lab];
        });

    }else{
        [self getData];
    }
}

-(void)getData{
    
    // 获取指定的字段,并不是要获取所有字段，需要指定具体的字段
    NSArray *keysToFetch = @[CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey];
    CNContactFetchRequest *fetchRequest = [[CNContactFetchRequest alloc] initWithKeysToFetch:keysToFetch];
    CNContactStore *contactStore = [[CNContactStore alloc] init];
    [contactStore enumerateContactsWithFetchRequest:fetchRequest error:nil usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {
        
//        NSLog(@"-------------------------------------------------------%@",contact);
        NSString *givenName = contact.givenName;
        NSString *familyName = contact.familyName;
        NSString * name = [NSString stringWithFormat:@"%@%@",familyName,givenName];
        NSString * first = [NSString stringWithFormat:@"%c",[ChineseToPinyin sortSectionTitle:name]];
        
        NSMutableArray * mArr = [NSMutableArray new];
        if (name.length == 0) {
            name = @"<未命名>";
        }
        [mArr addObject:name];
        NSArray *phoneNumbers = contact.phoneNumbers;
        for (CNLabeledValue *labelValue in phoneNumbers) {
            NSString *label = labelValue.label;
            CNPhoneNumber *phoneNumber = labelValue.value;
            
//            NSLog(@"label=%@, phone=%@", label, phoneNumber.stringValue);
            if (label == nil) {
                label = @"电话";
            }else if([label isEqualToString:@"_$!<Mobile>!$_"]){
                label = @"手机";
            }else if([label isEqualToString:@"_$!<Home>!$_"]){
                label = @"家用";
            }else if([label isEqualToString:@"_$!<Work>!$_"]){
                label = @"工作";
            }
            [mArr addObject:@{phoneNumber.stringValue:label}];
        }
        
        [_allUser addObject:mArr];
        if ([_AllZiMu containsObject:first]) {
            
            NSInteger index = [_AllZiMu indexOfObject:first];
            [_AllNullData[index] addObject:mArr];
            
        }

    }];
    
    int i=0;
    for (NSArray *arr in _AllNullData) {
        if (arr.count != 0) {
            [_detailData addObject:arr];
            [_sectionTitles addObject:_AllZiMu[i]];
        }
        i++;
    }
    
    dispatch_async(dispatch_get_main_queue(), ^{
        [self createTableView];
    });
}

-(void)createTableView{

    if (_lab) {
        [_lab removeFromSuperview];
    }
    
    
    self.navigationController.navigationBar.translucent = NO;
    self.definesPresentationContext = YES;//解决激活的时候消失的问题
    
    
    _tableview = [[UITableView alloc]initWithFrame:CGRectMake(0, 44, kSize.width, kSize.height-kNavOffSet-kTabBarHeight-44) style:0];
    _tableview.delegate = self;
    _tableview.dataSource = self;
    _tableview.showsVerticalScrollIndicator = NO;
    _tableview.tableFooterView = [UIView new];
    _tableview.sectionIndexColor = RQMianColor;
    
    
    _resultVC = [[ContactResultVC alloc]init];
    __weak typeof(self) weakSelf = self;
    _resultVC.pushBlock = ^(NSMutableArray *arr) {
        ContactDetailVC * vc = [[ContactDetailVC alloc]init];
        vc.oneDetail = arr;
        [weakSelf navPushHideTabbarToVC:vc];
    };
    
    
    _searchController = [[UISearchController alloc]initWithSearchResultsController:_resultVC];
    [_searchController loadViewIfNeeded];//解决报错**Attempting to load the view of a view controller while it is deallocating is not allowed and may result in undefined behavior (<UISearchController: 0x7f9c28c9d740>)**
    _searchController.delegate = self;
    _searchController.searchResultsUpdater = self;
    
    //搜索时，背景变暗色(感受不到区别)
    _searchController.dimsBackgroundDuringPresentation = YES;
    //搜索时，背景变模糊（模糊我感受不到，但是当前vc点击被屏蔽）
    _searchController.obscuresBackgroundDuringPresentation = YES;
    //搜索时，隐藏导航栏
    _searchController.hidesNavigationBarDuringPresentation = YES;
    
    _searchController.searchBar.frame = CGRectMake(0, 0, _searchController.searchBar.frame.size.width, 44.0);
    _searchController.searchBar.placeholder = @"搜索";
    _searchController.searchBar.tintColor = RQMianColor;
    _searchController.searchBar.delegate = self;
    
    [self.view addSubview:_tableview];
    [self.view addSubview:_searchController.searchBar];
    
    _resultVC.scrollBlock = ^{
        [weakSelf.searchController.searchBar resignFirstResponder];
    };
}

-(UILabel *)lab{
    
    if (!_lab) {
        _lab = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, kSize.width, 90)];
        _lab.center = self.view.center;//CGPointMake(self.view.center.x, self.view.center.y-knavOffset-100)
        _lab.text = @"未打开通讯录授权\n（打开方式：设置-隐私-通讯录-极速驾培）";
        _lab.textAlignment = NSTextAlignmentCenter;
        _lab.numberOfLines = 0;
        _lab.textColor =[UIColor lightGrayColor];
    }
    return _lab;
}

#pragma mark searchcontroller代理
-(void)willPresentSearchController:(UISearchController *)searchController{
    
    _searchController.searchBar.showsCancelButton = YES;
    UIButton *canceLBtn = [_searchController.searchBar valueForKey:@"cancelButton"];
    [canceLBtn setTitle:@"取消" forState:UIControlStateNormal];
    [canceLBtn setTitleColor:RQMianColor forState:UIControlStateNormal];
}

-(void)didDismissSearchController:(UISearchController *)searchController{
    
    _searchController.searchBar.frame = CGRectMake(0, 0, _searchController.searchBar.frame.size.width, 44.0);
}

#pragma mark UISearchResultsUpdating代理

- (void)updateSearchResultsForSearchController:(UISearchController *)searchController{
    
    NSString *searchString = [searchController.searchBar text];
    if (_resultArr != nil) {
        [_resultArr removeAllObjects];
    }
    //过滤数据
    for (NSArray *arr in _allUser) {
        if ([arr[0] containsString:searchString]) {
            [_resultArr addObject:arr];
        }
    }
    //刷新表格
    _resultVC.dataSource = _resultArr;
    if (_resultVC.reloadBlock) {
        _resultVC.reloadBlock();
    }
    
}

#pragma mark searchbar代理
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
    
    [searchBar resignFirstResponder];
}

#pragma mark tableview代理相关

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
   
    return [_detailData count];
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    
    return [_detailData[section] count];
}

-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{

    UIView * view = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kSize.width-15, 28)];
    view.backgroundColor = [UIColor colorWithWhite:0.92 alpha:1];
    
    UILabel *lable = [[UILabel alloc]initWithFrame:CGRectMake(15, 0, kSize.width-15, 28)];
    lable.text = [NSString stringWithFormat:@"%@",_sectionTitles[section]];
    lable.font = [UIFont boldSystemFontOfSize:17];
    [view addSubview:lable];
    
    return view;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cellID"];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:0 reuseIdentifier:@"cellID"];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
    }

    cell.textLabel.text = _detailData[indexPath.section][indexPath.row][0];
    
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    
    ContactDetailVC * vc = [[ContactDetailVC alloc]init];
    
    vc.oneDetail = _detailData[indexPath.section][indexPath.row];
 
    [self navPushHideTabbarToVC:vc];
    
}

#pragma mark 索引相关
// 每个分区的页眉
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{

    return [_sectionTitles objectAtIndex:section];
}

// 索引目录
-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
{
    return _sectionTitles;
}

// 点击目录(响应索引点击)
-(NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index
{
    
    // 获取所点目录对应的indexPath值
    NSIndexPath *selectIndexPath = [NSIndexPath indexPathForRow:0 inSection:index];
    
    // 让table滚动到对应的indexPath位置
    [tableView scrollToRowAtIndexPath:selectIndexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
    
    return index;
}



- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end