//
//  MobileAreaCodeViewController.swift
//  MTP2_iOS
//
//  Created by Handy_Cao on 2020/2/17.
//  Copyright © 2020 Muchinfo. All rights reserved.
//

import UIKit

/// 手机区号选择视图容器类
class MobileAreaCodeViewController: BaseViewController {

    // MARK: - 属性列表
    /// 搜索框
    @IBOutlet weak var searchBar: UISearchBar!
    /// 数据展示列表
    @IBOutlet weak var tableView: UITableView!
    
    /// 数据
    var array: NSArray?
    /// 创建block变量
    var popBlock: ((_ String: String) ->())?
    /// cellIdentifier
    let cellIdentifier = "MobileAreaCode_Cell"
    
    // MARK: - 生命周期相关
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        /// 数据初始化
        initData()
    }
    
    // MARK: - 初始化相关
    /// 数据初始化
    private func initData() {
        let path = Bundle.main.path(forResource: "AreaCode", ofType: "plist")
        array = NSArray(contentsOfFile: path ?? "")
    }
    
    // MARK: - 获取联系人姓名首字母(传入汉字字符串, 返回大写拼音首字母)
    /// 获取联系人姓名首字母(传入汉字字符串, 返回大写拼音首字母)
    /// - Parameter aString: aString
    private func getFirstLetter(_ aString: String) -> String {
        let mutableString = NSMutableString(string: aString)
        CFStringTransform((mutableString as CFMutableString), nil, kCFStringTransformToLatin, false)
        let pinyinString = mutableString.folding(options: .diacriticInsensitive, locale: nil)
        let array = pinyinString.components(separatedBy: .whitespaces)
        let results = NSMutableArray(capacity: array.count)
        for pinyin in array {
            let result = NSString(string: pinyin).substring(to: 1)
            results.add(result)
        }
        return results.componentsJoined(by: "")
    }
}

// MARK: - UISearchBarDelegate
extension MobileAreaCodeViewController: UISearchBarDelegate {
    /// searchBarCancelButtonClicked
    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
        /// 回到上层视图
        self.navigationController?.popViewController(animated: true)
    }
    
    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
        /// 初始化数据
        self.initData()
        
        if searchText.trimmingCharacters(in: CharacterSet.whitespaces) != "" {
            let selectArray = NSMutableArray()
            for dict in array ?? [] {
                let olderlyArray = (dict as! NSDictionary).allValues.first as! NSArray
                let selectionDictionary = NSMutableDictionary()
                let newerArray = NSMutableArray()
                var sign = false
                for contentArray in olderlyArray {
                    let areaName = (contentArray as! NSArray)[0] as! String
                    let areaCode = (contentArray as! NSArray)[1] as! String
                    let searchCondition = String(format: "%@;%@;%@", self.getFirstLetter(areaName), areaName, areaCode)
                    if NSString(string: searchCondition).localizedCaseInsensitiveContains(searchText) {
                        newerArray.add(contentArray)
                        sign = true
                    }
                }
                if sign {
                    let key = (dict as! NSDictionary).allKeys.first as! String
                    selectionDictionary[key] = newerArray
                    selectArray.add(selectionDictionary)
                }
            }
            array = selectArray
        }
        /// 刷新列表数据
        tableView.reloadData()
    }
    
    func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
        /// 失去第一响应
        searchBar.resignFirstResponder()
    }
}

// MARK: - UITableViewDelegate, UITableViewDataSource
extension MobileAreaCodeViewController: UITableViewDelegate, UITableViewDataSource {
    func numberOfSections(in tableView: UITableView) -> Int {
        return array?.count ?? 1
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        let dict = array?[section] as! NSDictionary
        let contentArray = dict.allValues.first as! NSArray
        return contentArray.count
    }
    
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        let dict = array?[section] as! NSDictionary
        return "  " + ((dict.allKeys.first as? String) ?? "")
    }
    
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let dict = array?[indexPath.section] as! NSDictionary
        let contentArray = dict.allValues.first as? NSArray
        let array = contentArray?[indexPath.row] as? NSArray
        /// block调用
        if let _ = self.popBlock { self.popBlock!(array![1] as! String) }
        self.navigationController?.popViewController(animated: true)
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)
        let dict = array?[indexPath.section] as? NSDictionary
        let contentArray = dict?.allValues.first as? NSArray
        let array = contentArray?[indexPath.row] as? NSArray
        cell.textLabel?.text = ((array?[1] as? String) ?? "") + " " + ((array?[0] as? String) ?? "")
        return cell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 44.0
    }
}