ihealth_ios/Inhealth/IHAreaSeachView.swift

//
//  IHAreaSeachView.swift
//  Inhealth
//
//  Created by weclouds on 2019/12/27.
//  Copyright © 2019 weclouds. All rights reserved.
//

import UIKit

protocol IHAreaSearchViewDelegate : NSObjectProtocol{
     func searchViewDidSelectRowAt(indexPath: IndexPath)
}

class IHAreaSeachView: UIView {
    
   weak var viewDelegate : IHAreaSearchViewDelegate?
    var target : UIViewController?
   var roomList : [RoomData]? {
          didSet{
              self.tableView.reloadData()
          }
      }
    
    var fillterResult :[RoomData]?{
        didSet{
            self.tableView.reloadData()
        }
    }
    
    // MARK: - Cancel Button 取消按钮
    public var showCancelButtonWhileEditing: Bool = false

    var searchController : UISearchController?
    
    lazy var tableView: UITableView = {
           let tableView = UITableView(frame: CGRect.zero, style: .plain)
           tableView.delegate = self
           tableView.dataSource = self
           tableView.backgroundColor = UIColor(hexString: "#F6F8F7")
           tableView.separatorStyle = .none
          // tableView.register(UINib(nibName: "IHAreaListCell", bundle: nil), forCellReuseIdentifier: "cell")
           return tableView
       }()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        addSubview(tableView)
       settingSerachController()
       
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        self.tableView.frame = self.bounds
    }
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    func settingSerachController()  {
        //传nil 搜索代码在当前界面
        searchController = UISearchController(searchResultsController: nil)
        searchController?.searchResultsUpdater = self
        
        searchController?.searchBar.frame = CGRect(x: 0, y: 0, width: 0, height: 44)
        searchController?.dimsBackgroundDuringPresentation = false
        searchController?.hidesNavigationBarDuringPresentation = true
        searchController?.obscuresBackgroundDuringPresentation = false
        searchController?.searchBar.sizeToFit()
        searchController?.searchBar.delegate = self
        searchController?.delegate = self
       
        //target?.navigationItem.searchController  = searchController
        target?.definesPresentationContext = true
        tableView.tableHeaderView = searchController?.searchBar
     
        
  
        setSearchBar()
  
    
    }
     ///设置searchbar
    func setSearchBar()  {
        //获取searchbar
          let searchBar = searchController?.searchBar
        searchBar?.barStyle = .default
          //获取searchBar 的search
          let searchField = searchBar?.value(forKey: "searchField") as? UITextField
          if searchField == nil {
            return
          }
          //文本框字体颜色
        searchField?.font  = UIFont(name: PingFangSC_Regular, size: 14)
        searchField?.textColor = UIColor(hexString: "#333333")
         ///文本框文字颜色
          let holderText = "请输入房间号"
          let placeholder = NSMutableAttributedString(string: holderText)
          placeholder.addAttributes([NSAttributedString.Key.foregroundColor : UIColor(hexString: "#C6CDD5") as Any], range: NSRange(location: 0, length: holderText.count))
          placeholder.addAttributes([NSAttributedString.Key.font : UIFont(name: Alibaba_PuHuiTi_Regular, size: 14) as Any], range: NSRange(location: 0, length: holderText.count))
          searchField?.attributedPlaceholder = placeholder
         //设置文本框背景
        searchField?.backgroundColor = UIColor(hexString: "#F6F8F7")
        //隐藏搜索框的上下两条黑线
        searchBar?.backgroundImage = UIImage()
        //搜索框背景颜色
        searchBar?.barTintColor = UIColor(hexString: "#F6F8F7")
        searchBar?.tintColor = UIColor(hexString: "#657085")

    }
    
    ///设置取消按钮

    
    ///过滤
    func filterContent(for searchText:String)  {
        let _roomlist = self.roomList
        let room_number = searchText
        var fillterRoomNS : [RoomData]
        
        if room_number == "" || _roomlist == nil || _roomlist?.count == 0  { //没有输入则为传入的内容
            fillterRoomNS = _roomlist!
        }else{
            fillterRoomNS = (_roomlist?.filter({ (newRoom) -> Bool in
                let number =  newRoom.number!
                let search = searchText.lowercased()
                return number.contains(search) == true
            }))!
        }
        fillterResult = fillterRoomNS
    }
       
}
extension IHAreaSeachView :UITableViewDataSource,UITableViewDelegate{
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if searchController?.isActive == true {
            return self.fillterResult?.count ?? 0
        }else{
            return self.roomList?.count ?? 0
        }
       
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        //这里要判断是学校还是酒店
        
        let room = searchController?.isActive == true ? self.fillterResult![indexPath.row] : self.roomList![indexPath.row]
        var cell : IHAreaListCell?
        if room.type == "1"{
            ////学校 ClassRoom
            cell = tableView.dequeueReusableCell(withIdentifier: "ClassRoom") as? IHAreaListCell
            if cell == nil{
                cell = Bundle.main.loadNibNamed("IHAreaListCell", owner: nil, options: nil)?.last as? IHAreaListCell
            }
        }else{
            //酒店
            cell = tableView.dequeueReusableCell(withIdentifier: "cell") as? IHAreaListCell
            if cell == nil{
                cell = Bundle.main.loadNibNamed("IHAreaListCell", owner: nil, options: nil)?.first as? IHAreaListCell
            }
        }
        
        cell?.selectionStyle = .none
        
        cell?.room = room
        return cell!
    }
    
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 150
    }
    
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
       // self.endEditing(true)
        searchController?.isActive = false
        if let delegate = viewDelegate {
            delegate.searchViewDidSelectRowAt(indexPath: indexPath)
        }
    }
    
}

extension IHAreaSeachView : UISearchResultsUpdating,UISearchBarDelegate,UISearchControllerDelegate{
    func updateSearchResults(for searchController: UISearchController) {
        
        for view in searchController.searchBar.subviews{
            log.debug("view = \(view)")
            for sub in view.subviews[0].subviews {
                log.debug("sub \(sub)")
            }
        }
        
        if let searchText = searchController.searchBar.text {
            filterContent(for: searchText)
        }
    }
    
    func didPresentSearchController(_ searchController: UISearchController) {
        log.debug("self.tableView.frame - \(self.tableView.frame)")
        showCancelButtonWhileEditing = true
    }
    
    func willDismissSearchController(_ searchController: UISearchController) {
        log.debug("self.tableView.frame - \(self.tableView.frame)")
        showCancelButtonWhileEditing = false
       
    }
    

  
}