//
//  MOSelectPartitionVC.m
//  MiMoLive
//
//  Created by SuperC on 2023/10/16.
//

#define SectionHeaderHeight 32.0

#import "MOSelectPartitionVC.h"
#import "SCIndexView.h"
#import "UITableView+SCIndexView.h"
#import "MOSelectPartitionCell.h"
#import "MOSearchBar.h"
#import "UIImage+YYAdd.h"
#import "MOGlobalView.h"

#import "ChineseToPinyin.h"

@implementation MOCountryDataSourceModel
@end

@interface MOSelectPartitionVC ()<SCTableViewSectionIndexDelegate,UITableViewDelegate,UITableViewDataSource,UITextFieldDelegate>

@property (nonatomic, strong) BigBtn *backButton;

@property (nonatomic, strong) UILabel *titleLab;

/** 搜索框*/
@property (nonatomic, strong) MOSearchBar *searchTef;

/** 主显示界面 */
@property (nonatomic, strong) UITableView *tableView;

@property (nonatomic, strong) NSMutableArray *dataArr;

@property (nonatomic, strong) NSMutableArray<MOCountryDataSourceModel *> *filteredDataArr;
@property (nonatomic, assign) BOOL isSearching;

@property (nonatomic, strong) MOGlobalView *globalView;

@end

@implementation MOSelectPartitionVC

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
//    self.navigationItem.title = NSLocalString(@"mimo_recharge_select_country");

    [self setupUI];
    
    if(self.setCountyInfo || self.justCounty || self.isGlobal){
        [self getHttpDataAboutCountry];
        [self toSetTableViewHeaderView];
    }
    else{
        //数据
        [self getPartitionNumData];
    }

}

- (void)toSetTableViewHeaderView{
    if(self.isGlobal){
        self.globalView.frame = CGRectMake(0.0, 0.0, SCREENWIDTH, 56.0);
        self.tableView.tableHeaderView = self.globalView;
    }
}

- (void)setupUI{

    self.view.backgroundColor = [MOTools colorWithHexString:@"#FFFFFF"];
    
    [self.view addSubview:self.backButton];
    [self.backButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(kTopSafeAreaInset + 10);
        make.left.mas_equalTo(16);
        make.size.mas_equalTo(CGSizeMake(30, 30));
    }];
    
    [self.view addSubview:self.titleLab];
    [self.titleLab mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(55.0);
        make.right.equalTo(self.view).offset(-55.0);
        make.centerY.equalTo(self.backButton.mas_centerY);
    }];
    
    [self.view addSubview:self.searchTef];
    [self.searchTef mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.backButton.mas_bottom).offset(14);
        make.left.mas_equalTo(16);
        make.right.mas_equalTo(-16);
        make.height.mas_equalTo(44);
    }];
    
    [self.view addSubview:self.tableView];
    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.searchTef.mas_bottom).offset(0.5);
        make.left.mas_equalTo(0);
        make.right.mas_equalTo(0);
        make.bottom.mas_equalTo(0);
    }];
}

- (void)textFieldDidChange:(UITextField *)textField{
    NSString *searchText = textField.text;
    if (searchText.length == 0) {
        self.isSearching = NO;
        [self.tableView reloadData];
        return;
    }
    self.isSearching = YES;
    NSMutableArray<MOCountryDataSourceModel *> *filteredSections = [NSMutableArray array];
    for (MOCountryDataSourceModel *sectionModel in self.dataArr) {
        NSMutableArray<MOCountryList *> *filteredCountries = [NSMutableArray array];
        for (MOCountryList *country in sectionModel.sectionDataSourceArray) {
            if ([country.name containsString:searchText] || [country.code containsString:searchText]) {
                [filteredCountries addObject:country];
            }
        }
        if (filteredCountries.count > 0) {
            MOCountryDataSourceModel *filteredSection = [MOCountryDataSourceModel new];
            filteredSection.indexTitle = sectionModel.indexTitle;
            filteredSection.sectionDataSourceArray = filteredCountries;
            [filteredSections addObject:filteredSection];
        }
    }
    self.filteredDataArr = filteredSections;
    [self.tableView reloadData];
}

- (void)backButtonAction {
    [self.navigationController popViewControllerAnimated:YES];
}

#pragma mark - SCTableViewSectionIndexDelegate
- (void)tableView:(UITableView *)tableView didSelectIndexViewAtSection:(NSUInteger)section
{
    
}

- (NSUInteger)sectionOfTableViewDidScroll:(UITableView *)tableView
{
    return SCIndexViewInvalidSection;
}

#pragma mark - UITableViewDelegate,UITableViewDataSource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return self.isSearching ? self.filteredDataArr.count : self.dataArr.count;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    MOCountryDataSourceModel *sectionModel = self.isSearching ? self.filteredDataArr[section] : self.dataArr[section];
    return sectionModel.sectionDataSourceArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    MOCountryDataSourceModel *sectionModel = self.isSearching ? self.filteredDataArr[indexPath.section] : self.dataArr[indexPath.section];
    MOCountryList *cellModel = sectionModel.sectionDataSourceArray[indexPath.row];
    
    MOSelectPartitionCell *cell = [tableView dequeueReusableCellWithIdentifier:MOSelectPartitionCell_ID];
    if (cell == nil){
        cell = [[MOSelectPartitionCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MOSelectPartitionCell_ID];
    }
    cell.model = cellModel;
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    [tableView deselectRowAtIndexPath:indexPath animated:NO];
    
    MOCountryDataSourceModel *sectionModel = self.isSearching ? self.filteredDataArr[indexPath.section] : self.dataArr[indexPath.section];
    MOCountryList *cellModel = sectionModel.sectionDataSourceArray[indexPath.row];
    
    if(self.setCountyInfo){
        [self setUserInfoAboutCountyWith:cellModel];
    }
    else{
        self.selectCellBlock ? self.selectCellBlock(cellModel) : nil;
        [self.navigationController popViewControllerAnimated:YES];
    }
}

- (void)setUserInfoAboutCountyWith:(MOCountryList *)model{
    
    WEAKSELF
    if(model.code.length == 0){
        return;
    }
    
    NSString *countryStr = model.code;
    
    NSDictionary *dict = @{@"country":countryStr};
    
    [kHttpManager toSettingInfoWithParams:dict andBlock:^(id  _Nonnull data, NSError * _Nonnull error) {
        if(kCode_Success){
            
            NSDictionary *baseDict = data[@"data"];
            
            [MBProgressHUD showTipMessageInView:NSLocalString(@"mimo_common_success")];
            
            //更新个人信息缓存
            MOMeDataInfo *userInfoData = (MOMeDataInfo *)[[MODataCache sharedYYCache] objectForKey:kMineUserInfo];
            userInfoData.userProfile.country = countryStr;
            
            [[MODataCache sharedYYCache] setObject:userInfoData forKey:kMineUserInfo];
            
            weakSelf.selectCellBlock ? weakSelf.selectCellBlock(model) : nil;
            
            [weakSelf performSelector:@selector(toPopVC) withObject:nil afterDelay:1.0];

        }
        else{
            kShowNetError(data)
        }
    }];
}

- (void)toPopVC{
    [self.navigationController popViewControllerAnimated:YES];
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    NSArray *source = self.isSearching ? self.filteredDataArr : self.dataArr;
    if (section >= source.count) return 0;
    return SectionHeaderHeight;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    
    NSString *sectionTitle = @"";
    
    NSArray *source = self.isSearching ? self.filteredDataArr : self.dataArr;
    if (section < source.count) {
        sectionTitle = ((MOCountryDataSourceModel *)source[section]).indexTitle ?: @"";
    }
    
    UIView *contentView = [UIView new];
    contentView.backgroundColor = [MOTools colorWithHexString:@"#FFFFFF"];
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(16, 0, 100, SectionHeaderHeight)];
    label.backgroundColor = [UIColor clearColor];
    label.text = sectionTitle;
    label.font = [MOTextTools regularFont:16];
    label.textColor = kBaseTextColor_3;
    [contentView addSubview:label];
    return contentView;
}

#pragma mark - Http
- (void)getPartitionNumData{
    WEAKSELF
    [kHttpManager getCountryMobileListWithParams:nil andBlock:^(id  _Nonnull data, NSError * _Nonnull error) {
        
        __strong typeof(weakSelf) self = weakSelf;
        
        if(kCode_Success){
            MOLogV(@"%@",[[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:data options:0 error:nil] encoding:NSUTF8StringEncoding]);
            MOCountryBaseData *baseData = [MOCountryBaseData modelObjectWithDictionary:data[@"data"]];
            self.dataArr = [self sortDataArray:baseData.countryList];
            self.tableView.sc_indexViewDataSource = [self getIndexTitleArray];
            [self.tableView reloadData];
        }
        else
        {
            kShowNetError(data)
        }
    }];
}

//获取国家列表
- (void)getHttpDataAboutCountry{
    WEAKSELF
    [kHttpManager getCountryAndRegionListWithParams:nil andBlock:^(id  _Nonnull data, NSError * _Nonnull error) {
        __strong typeof(weakSelf) self = weakSelf;
        
        if(kCode_Success){
            MOLogV(@"%@",[[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:data options:0 error:nil] encoding:NSUTF8StringEncoding]);
            
            MOCountryBaseData *baseData = [MOCountryBaseData modelObjectWithDictionary:data[@"data"]];
            self.dataArr = [self sortDataArray:baseData.countryList];
            self.tableView.sc_indexViewDataSource = [self getIndexTitleArray];
            [self.tableView reloadData];
        }
        else
        {
            kShowNetError(data)
        }
    }];
}



#pragma mark - sort
- (NSMutableArray<MOCountryDataSourceModel *> *)sortDataArray:(NSArray<MOCountryList *> *)dataArray
{
    if (dataArray.count == 0)
    {
        return [NSMutableArray array];
    }
    
    //建立索引的核心
    UILocalizedIndexedCollation *indexCollation = [UILocalizedIndexedCollation currentCollation];
    NSArray *sectionTitles = [indexCollation sectionTitles];
    
    //返回27，是a－z和＃
    NSInteger highSection = sectionTitles.count;
    //tableView 会被分成27个section
    NSMutableArray *sortedArray = [NSMutableArray arrayWithCapacity:highSection];
    for (int i = 0; i <= highSection; i++)
    {
        NSMutableArray *sectionArray = [NSMutableArray arrayWithCapacity:1];
        [sortedArray addObject:sectionArray];
    }
    //名字分section
    for (int i = 0;i < [dataArray count]; i++)
    {
        MOCountryList *data = [dataArray objectAtIndex:i];
        NSString *firstLetter = [ChineseToPinyin pinyinFromChineseString:data.name];
        if (firstLetter.length > 0)
        {
            NSInteger section = [indexCollation sectionForObject:[firstLetter substringToIndex:1] collationStringSelector:@selector(uppercaseString)];
            NSMutableArray *array = [sortedArray objectAtIndex:section];
            [array addObject:data];
        }
    }
    
    //每个section内的数组排序
    for (int i = 0; i < [sortedArray count]; i++)
    {
        NSArray *array = [MOTools sortArrayByPinYin:sortedArray[i] objectTextKeyPath:@"name"];
        [sortedArray replaceObjectAtIndex:i withObject:[NSMutableArray arrayWithArray:array]];
    }
    
    NSMutableArray *modelArray = [NSMutableArray arrayWithCapacity:1];
    //section数组为空的过滤掉
    for (int i = 0; i < sortedArray.count; i++)
    {
        NSMutableArray *sectionArray = sortedArray[i];
        if (sectionArray.count > 0)
        {
            MOCountryDataSourceModel *model = [MOCountryDataSourceModel new];
            model.indexTitle = sectionTitles[i];
            model.sectionDataSourceArray = sectionArray;
            [modelArray addObject:model];
        }
    }
    return modelArray;
}

/** 根据数据源创建索引标题 */
- (NSArray *)getIndexTitleArray
{
    NSMutableArray *indexArray = [NSMutableArray arrayWithCapacity:1];
    for (int i = 0; i < self.dataArr.count; i++)
    {
        MOCountryDataSourceModel *model = self.dataArr[i];
        [indexArray addObject:model.indexTitle?:@""];
    }
    return [NSArray arrayWithArray:indexArray];
}

- (BigBtn *)backButton {
    if (!_backButton) {
        _backButton = [[BigBtn alloc] init];
        [_backButton setImage:[UIImage imageNamed:@"v_2_icon_new_back_black"] forState:UIControlStateNormal];
        [_backButton addTarget:self action:@selector(backButtonAction) forControlEvents:UIControlEventTouchUpInside];
    }
    return _backButton;
}

- (UITableView *)tableView {
    if (!_tableView) {
        _tableView= [[UITableView alloc] init];
        _tableView.backgroundColor = [UIColor clearColor];
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        _tableView.dataSource = self;
        _tableView.delegate = self;
        _tableView.showsVerticalScrollIndicator = NO;
        _tableView.showsHorizontalScrollIndicator = NO;
        _tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
        
        _tableView.rowHeight = 56.0;
        _tableView.estimatedRowHeight = 0;
        _tableView.estimatedSectionHeaderHeight = 0;
        _tableView.estimatedSectionFooterHeight = 0;
        
        //iOS15适配
        if (@available(iOS 15.0, *)) {
            _tableView.sectionHeaderTopPadding = 0;
        }
        
        [_tableView registerClass:[MOSelectPartitionCell class] forCellReuseIdentifier:MOSelectPartitionCell_ID];
        
        SCIndexViewConfiguration *configuration = [SCIndexViewConfiguration configuration];
        configuration.indexItemTextColor = kBaseTextColor_3;
        configuration.indexItemTextFont = [MOTextTools poppinsRegularFont:16.0];
        configuration.indexItemHeight = 32.0;
        configuration.indexItemRightMargin = 10.0;
        configuration.indexItemsSpace = 0.0;
        _tableView.sc_indexViewConfiguration = configuration;
        _tableView.sc_translucentForTableViewInNavigationBar = NO;
        _tableView.sc_indexViewDelegate = self;
        
    }
    return _tableView;
}

- (MOSearchBar *)searchTef {
    if (!_searchTef) {
        _searchTef = [[MOSearchBar alloc] init];
        _searchTef.backgroundColor = [MOTools colorWithHexString:@"#F3F4FA"];
        _searchTef.layer.cornerRadius = 8.0;
        _searchTef.layer.masksToBounds = YES;
        _searchTef.clearButtonMode = UITextFieldViewModeWhileEditing;
        _searchTef.leftViewMode = UITextFieldViewModeAlways;
        _searchTef.returnKeyType = UIReturnKeySearch;
        _searchTef.delegate = self;
        _searchTef.textColor = kBaseTextColor_1;
        _searchTef.font = [MOTextTools regularFont:14];
        
        UIImageView *icon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"icon_search_36"]];
        icon.contentMode = UIViewContentModeScaleAspectFit;
        icon.frame = CGRectMake(0, 0, 18, 18);
        _searchTef.leftView = icon;
        [_searchTef addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
        
        NSMutableAttributedString *placeholderString = [[NSMutableAttributedString alloc] initWithString:NSLocalString(@"mimo_login_input_country") attributes:@{
            NSForegroundColorAttributeName : [MOTools colorWithHexString:@"#878A99" alpha:1.0],
            NSFontAttributeName : [MOTextTools poppinsRegularFont:14]
        }];
        
        _searchTef.attributedPlaceholder = placeholderString;
    }
    return _searchTef;
}

- (MOGlobalView *)globalView{
    if(!_globalView){
        _globalView = [[MOGlobalView alloc] init];
        
        WEAKSELF
        _globalView.viewClickBlock = ^{
            MOCountryList *model = [[MOCountryList alloc] init];
            model.code = @"";
            weakSelf.selectCellBlock ? weakSelf.selectCellBlock(model) : nil;
            [weakSelf.navigationController popViewControllerAnimated:YES];
        };
    }
    return _globalView;
}

- (UILabel *)titleLab{
    if(!_titleLab)
    {
        _titleLab = [UILabel new];
        _titleLab.textColor = kBaseTextColor_1;
        _titleLab.textAlignment = NSTextAlignmentCenter;
        _titleLab.font = [MOTextTools poppinsMediumFont:18.0];
        _titleLab.backgroundColor = [UIColor clearColor];
        _titleLab.text = NSLocalString(@"mimo_recharge_select_country");
    }
    return _titleLab;
}

@end