//
//  ChoiceGoodsViewController.swift
//  MTP2_iOS
//
//  Created by Muchinfo on 2019/6/1.
//  Copyright © 2019 Muchinfo. All rights reserved.
//

import UIKit

/// 商品检索视图控制器
class ChoiceGoodsViewController: BaseViewController {
    
    // MARK: - 属性列表
    /// 搜索框 第一响应者
    @IBOutlet weak var searchBar: UISearchBar! {
        didSet {
            searchBar.becomeFirstResponder()
        }
    }
    /// 数据展示列表
    @IBOutlet weak var tableView: UITableView!
    
    /// 是否是交易
    var isTrade: Bool = false
    /// 商品数据信息
    var goodsInfo: [MoGoodsInfo] = []
    /// 执行回调
    var block: ((_ goodsInfo: MoGoodsInfo?) -> Void)?

    // MARK: - 生命周期相关
    override func viewDidLoad() {
        super.viewDidLoad()
        /// 获取上次搜索的商品数据信息
        getResearchGoodsInfo()
        /// returnKeyType
        searchBar.returnKeyType = .done
    }
    
    // MARK: - 交互相关
    /// 获取上次之前搜索的商品数据信息
    fileprivate func getResearchGoodsInfo() {
        /// 现清除数据
        if goodsInfo.count != 0 { goodsInfo.removeAll() }
        
        /// 获取数据
        let goodsIds = UserDefaultsUtils.getResearchGoodsInfo()
        /// 商品信息
        if goodsIds.count != 0, let infos = MTP2BusinessCore.shared.goodsManager?.goodsInfos, infos.count != 0 {
            for id in goodsIds {
                if let goods = infos.first(where: {id == "\($0.goodsid)"}) {
                    goodsInfo.append(goods)
                }
            }
        }
        /// 刷新列表数据
        tableView.reloadData()
    }
    
    /// 商品切换的方法
    /// - Parameter goodsId: goodsId
    func didSelectGoods(_ goods: MoGoodsInfo?) {
        /// 获取商品数据信息
        guard let info = goods, let bk = block else { return }
        /// 执行回调
        DispatchQueue.main.asyncAfter(deadline: .now()+0.2) {
            bk(info)
        }
    }
    
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
        if segue.identifier == "ShowChart", let c = segue.destination as? ChartViewController {
            /// 图表
            block = { (_ info: MoGoodsInfo?) in
                /// 期货合约商品
                c.moGoodsInfo = info
                /// 显示分时图
                c.showTSChart()
            }
        }
    }
    
    override func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
        return !isTrade
    }
}

// MARK: - UISearchBarDelegate
extension ChoiceGoodsViewController: UISearchBarDelegate {
    /// searchBarCancelButtonClicked
    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
        /// 回到上层视图
        self.navigationController?.popViewController(animated: true)
    }
    
    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
        /// 如果数据为空
        if searchText == "" {
            getResearchGoodsInfo()
        } else {
            /// 商品信息不存在
            guard let goods = try? DatabaseHelper.getGoodsInfo(ByCondition: searchText) else { return }
            /// 刷新数据信息
            goodsInfo = goods
            /// 刷新数据
            tableView.reloadData()
        }
    }
    
    func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
        /// 失去第一响应
        searchBar.resignFirstResponder()
    }
}

// MARK: - UITableViewDelegate, UITableViewDataSource
extension ChoiceGoodsViewController: UITableViewDelegate, UITableViewDataSource {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        /// 记录已查询的商品数据
        UserDefaultsUtils.setResearchGoodsInfo("\(goodsInfo[indexPath.row].goodsid)")
        /// 商品切换回掉
        self.didSelectGoods(goodsInfo[indexPath.row])
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 50.0
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return goodsInfo.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "tableView_cell", for: indexPath) as! ChoiceGoodsTableCell
        cell.model = goodsInfo[indexPath.row]
        return cell
    }
}

// MARK: - UIScrollViewDelegate
extension ChoiceGoodsViewController: UIScrollViewDelegate {
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        /// 失去第一响应
        searchBar.resignFirstResponder()
    }
}

// MARK: - ChoiceGoodsTableCell
class ChoiceGoodsTableCell: BaseTableViewCell <MoGoodsInfo> {
    /// 商品名称
    @IBOutlet weak var goodsName: UILabel!
    /// 商品代码
    @IBOutlet weak var goodsCode: UILabel!
    /// 标志
    @IBOutlet weak var flag: UILabel! {
        didSet {
            flag.layer.cornerRadius = 5.0
            flag.layer.borderWidth = 1.0
            flag.layer.borderColor = UIColor.white.cgColor
            flag.layer.masksToBounds = true
            flag.textAlignment = .center
        }
    }
    /// 自选按钮
    @IBOutlet weak var selfButton: UIButton!
    /// 标志
    @IBOutlet weak var flagWidthLayoutConstraint: NSLayoutConstraint!
    
    /// 是否为自选
    var isSelfGoods = false {
        didSet {
            /// 设置
            selfButton.setImage(UIImage(named: isSelfGoods ? "self" : "unself"), for: .normal)
        }
    }
    
    override var model: MoGoodsInfo? {
        didSet {
            /// 异常
            guard let info = model else { return }
            /// 商品名称和代码
            goodsName.text = info.goodsname
            goodsCode.text = info.goodscode
            /// 获取标志
            guard let goodsManager = MTP2BusinessCore.shared.goodsManager,
                let group = goodsManager.goodsGroups?.first(where: {$0.goodsgroupid == info.goodsgroupid}),
                let exchanges = goodsManager.exchanges?.first(where: {$0.autoid == group.exexchangeid}) else { return }
            /// 计算宽度
            let size = exchanges.exexchangecode.getExchangeCodeVerb().getTextSize(font: .font_14, size: CGSize(width: kScreenWidth, height: 35.0))
            flagWidthLayoutConstraint.constant = CGFloat(size.width) + 10.0
            flag.text = exchanges.exexchangecode.getExchangeCodeVerb()
            /// 自选商品
            isSelfGoods = goodsManager.favGoodsIds?.contains(where: {$0 == info.goodsid}) ?? false
        }
    }
    
    // MARK: - 交互相关
    /// onButtonPressed
    /// - Parameter sender: sender
    @IBAction func onButtonPressed(_ sender: UIControl) {
        /// 异常
        guard let info = model,
              let goodsManager = MTP2BusinessCore.shared.goodsManager else { return }
        /// 删自选
        if self.isSelfGoods {
            goodsManager.requestRemoveUserFavoriteGoods(goodsID: info.goodsid, callback: { (isSuccess, _) in
                DispatchQueue.main.async { self.isSelfGoods = !isSuccess }
            })
        } else {
            /// 加自选
            goodsManager.requestAddUserFavoriteGoods(goodsID: info.goodsid, callback: { (isSuccess, _) in
                DispatchQueue.main.async { self.isSelfGoods = isSuccess }
            })
        }
    }
}