//
//  SpotsPageViewController.swift
//  MTP2_iOS
//
//  Created by Muchinfo on 2021/9/16.
//  Copyright © 2021 Muchinfo. All rights reserved.
//

import UIKit
import JXSegmentedView

/// 现货主视图容器控制类
class SpotsPageViewController: BaseViewController {
    
    // MARK: - 属性列表
    /// title
    @IBOutlet weak var segmentedView: JXSegmentedView! {
        didSet {
            segmentedView.dataSource = dataSource
            segmentedView.indicators = [indicator]
            segmentedView.delegate = self
        }
    }
    /// 内容承载视图
    @IBOutlet weak var contentView: UIView!
    /// 新增现货合同/购销计划
    @IBOutlet weak var new: UIBarButtonItem!
    
    /// 权限功能
    var roleTitles: [String] {
        get {
            var titles: [String] = []
            /// 权限控制
            guard let commonManager = MTP2BusinessCore.shared.commonManager else {
                return titles
            }
            if commonManager.containMenu(key: "client_spots_purchase") {
                titles.append("采购合同")
            }
            if commonManager.containMenu(key: "client_spots_sales") {
                titles.append("销售合同")
            }
            if commonManager.containMenu(key: "client_spots_hedgeplan") {
                titles.append("购销计划")
            }
            if commonManager.containMenu(key: "client_spots_link") {
                titles.append("期现关联")
            }
            return titles
        }
    }
    
    /// 采购视图容器控制类
    lazy var purchase: PurchaseViewController = {
        $0.econtractType = .Buy
        return $0
    }(viewController("Spots", "Purchase") as! PurchaseViewController)
    
    /// 销售视图容器控制类
    lazy var sales: PurchaseViewController = {
        $0.econtractType = .Sale
        return $0
    }(viewController("Spots", "Purchase") as! PurchaseViewController)
    
    /// 购销计划视图容器控制类
    lazy var hedgePlan: HedgePlanViewController = {
        /// 不是审核模式
        $0.isAduit = false
        return $0
    }(viewController("Spots", "HedgePlan") as! HedgePlanViewController)
    
    /// 期现关联视图容器控制类
    lazy var link: SpotsLinkViewController = {
        return $0
    }(viewController("Spots", "SpotsLink") as! SpotsLinkViewController)

    // MARK: - 生命周期
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        /// 允许横屏
        let app = UIApplication.shared.delegate as? AppDelegate
        app?.isRotation = true
        /// 侦听横竖屏切换
        NotificationCenter.default.addObserver(self, selector: #selector(orientationDidChange(interfaceOrientation:)), name: UIDevice.orientationDidChangeNotification, object: nil)
    }
    
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        /// 允许横屏
        let app = UIApplication.shared.delegate as? AppDelegate
        app?.isRotation = true
        /// 移出侦听
        NotificationCenter.default.removeObserver(self)
    }
    
    @objc func orientationDidChange(interfaceOrientation: UIInterfaceOrientation) {
        /// 横竖屏切换时 重新计算
        segmentedView.width = self.view.width
        segmentedView.reloadData()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        /// 隐藏返回按钮
        addBackBarButtonItem(true)
        /// titles
        dataSource.titles = roleTitles
        segmentedView.reloadData()
        /// 默认显示采购视图
        showChildController(purchase)
    }
    
    // MARK: - 视图切换
    /// 添加子视图
    /// - Parameter controller: controller
    fileprivate func showChildController(_ controller: BaseViewController) {
        /// 先移出所有的子视图
        let childs: [UIViewController] = self.children
        childs.forEach { child in
            child.removeFromParent()
            child.view.removeFromSuperview()
        }
        /// 添加视图
        if !contentView.subviews.contains(controller.view) {
            controller.view.frame = contentView.bounds
            contentView.addSubview(controller.view)
            self.addChild(controller)
            controller.didMove(toParent: self)
        }
    }
    
    // MARK: - 交互操作
    /// onBarButtonItemPressed
    /// - Parameter sender: sender
    @IBAction fileprivate func onBarButtonItemPressed(_ sender: UIBarButtonItem) {
        switch sender {
        case new: /// 新增
            /// 新增现货合同/购销计划
            performSegue(withIdentifier: roleTitles[segmentedView.selectedIndex] == "购销计划" ? "ShowNewHedgePlan" : "ShowNewSpotContract", sender: nil)
        default:
            break
        }
    }

    
    // 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 == "ShowNewHedgePlan", let n = segue.destination as? NewHedgePlanViewController {
            /// 新增购销计划
            n.popBlock = { (_ takeInfo: Any?) in
                /// 刷新列表数据
                self.hedgePlan.mainScrollView.triggerRefreshing()
            }
        } else if segue.identifier == "ShowNewSpotContract", let n = segue.destination as? NewSpotContractViewController {
            /// 新增现货合同
            n.popBlock = { (_ takeInfo: Any?) in
                if self.roleTitles[self.segmentedView.selectedIndex] == "采购合同" {
                    self.purchase.mainScrollView.triggerRefreshing()
                } else {
                    self.sales.mainScrollView.triggerRefreshing()
                }
            }
            DispatchQueue.main.asyncAfter(deadline: .now()+0.3) {
                /// 合同类型
                n.econtractType = self.segmentedView.selectedIndex == 0 ? .Buy : .Sale
            }
        }
    }
}

// MARK: - JXSegmentedViewDelegate
extension SpotsPageViewController: JXSegmentedViewDelegate {
    /// didSelectedItemAt
    /// - Parameters:
    ///   - segmentedView: segmentedView
    ///   - index: index
    func segmentedView(_ segmentedView: JXSegmentedView, didSelectedItemAt index: Int) {
        switch roleTitles[index] {
        case "采购合同":   /// 采购合同
            showChildController(purchase)
        case "销售合同":   /// 销售合同
            showChildController(sales)
        case "期现关联":   /// 期现关联
            showChildController(link)
        default:         /// 购销计划
            showChildController(hedgePlan)
        }
    }
}