platform-ios/RainbowPlanet/RainbowPlanet/Modules/ShoppingCartModule/ShoppingCartPayOrder/View/ShoppingCartOrderPayView.swift

//
//  ShoppingCartOrderPayView.swift
//  RainbowPlanet
//
//  Created by Christopher on 2019/5/9.
//  Copyright © 2019 RainbowPlanet. All rights reserved.
//  购物车--订单支付View

import UIKit

class ShoppingCartOrderPayView: BaseView {
    
    typealias CommitOrderTransBlock = () -> Void
    var commitOrderTransBlock : CommitOrderTransBlock?
    
    // 全部已选总价
    var totalProductPrice: Int = 0 {
        didSet {
            self.accountView.tPrice = totalProductPrice
        }
    }
    
    // 已选商品ModelArr
    var proListModelArr : Array<CartProductListModel>? {
        didSet {
            tableView.reloadData()
        }
    }
    
    override func setupViews() {
        self.backgroundColor = kf7f8faColor
        addSubview(accountView)
        addSubview(tableView)
        let emptyView =  EmptyView.shared.diyCustomEmptyViewStyle2(iconStr: "page04", titleStr: "当前暂无数据")
        emptyView.contentViewY = kScaleValue(value: 182)
        tableView.ly_emptyView = emptyView
        tableView.ly_startLoading()
    }
    
    override func setupLayouts() {
        accountView.snp.makeConstraints { (make) in
            make.left.right.equalToSuperview()
            make.bottom.equalTo(-kSafeTabBarHeight)
            make.height.equalTo(48)
        }
        tableView.snp.makeConstraints { (make) in
            make.edges.equalToSuperview()
            make.bottom.equalTo(accountView.snp_top).offset(-20)
        }
    }
    
    lazy var accountView: OrderPayAcountView = {
        let accountView = OrderPayAcountView()
        accountView.commitOrderBlock = {
            [weak self] in
            if let commitOrderTransBlock = self?.commitOrderTransBlock {
                commitOrderTransBlock()
            }
        }
        return accountView
    }()
    
    lazy var tableView: UITableView = {
        let tableView = UITableView(frame: CGRect.zero, style: UITableView.Style.grouped)
        tableView.separatorStyle = .none
        tableView.backgroundColor = kf7f8faColor
        tableView.dataSource = self
        tableView.delegate = self
        tableView.estimatedRowHeight = 0.000001
        tableView.estimatedSectionFooterHeight = 0.000001
        tableView.estimatedSectionHeaderHeight = 0.000001
        return tableView
    }()
    
}

// MARK: - tableView dataSource && delegate
extension ShoppingCartOrderPayView : UITableViewDelegate, UITableViewDataSource {
    func numberOfSections(in tableView: UITableView) -> Int {
        return proListModelArr!.count + 1
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if section == 0 {
            return 1
        } else {
            return proListModelArr![section-1].productList!.count
        }
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        if indexPath.section == 0 {
            // 快递添加地址
//            let cell = OrderPayExpressAddInfoCell.cellWith(tableView: tableView, indexPath: indexPath)
            // 自提添加收货人信息
//            let cell = OrderPaySelfPickAddInfoCell.cellWith(tableView: tableView, indexPath: indexPath)
            // 自提地址信息
//            let cell = OrderPaySelfPickAddressCell.cellWith(tableView: tableView, indexPath: indexPath)
            // 自提个人信息
//            let cell = OrderPaySelfPickInfoCell.cellWith(tableView: tableView, indexPath: indexPath)
            // 快递
            let cell = OrderPayExpressInfoShowCell.cellWith(tableView: tableView, indexPath: indexPath)
            
            
            return cell
            
        } else {
            // 购物车列表Item
            let cell = ShoppingCartPayOrderItemCell.cellWith(tableView: tableView, indexPath: indexPath)
            cell.productMdl = proListModelArr![indexPath.section-1].productList![indexPath.row]
            return cell
        }
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return  UITableView.automaticDimension
    }
    
    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        if section == 0 {
            return 10
        } else {
            return 58
        }
    }
    
    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        if section == 0 {
            return nil
        } else {
            let headerView = ShoppingCartPayOrderHeader(frame: CGRect(x: 0, y: 0, width: kScreenWidth, height: 58))
            headerView.shopName = proListModelArr![section-1].shopName
            return headerView
            
        }
    }
    
    func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
        if section == 0 {
            return 0.000001
        } else {
            return 88
        }
    }
    
    func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
        if section == 0 {
            return nil
        } else {
            let footerView = ShoppingCartPayOrderFooter(frame: CGRect(x: 0, y: 0, width: kScreenWidth, height: 88))
            
            let cartProListMdl: CartProductListModel = proListModelArr![section-1]
            let secNum: Int = cartProListMdl.productList!.count
            
            footerView.tPrice = self.calculateSectionPrice(section-1)
            footerView.tNumber = secNum
            
            footerView.buyerNoteBlock = { [weak self]
                (buyerNotes) in
                self?.proListModelArr![section-1].buyerNotes = buyerNotes
            }
            
            return footerView
        }
    }
    
}

// 购物车计算
extension ShoppingCartOrderPayView {
    
    // 计算Section数据，刷新结算View
    func calculateSectionPrice(_ section: Int) -> Int {
        var totalPrice: Int = 0
        
        let cartProListMdl: CartProductListModel = proListModelArr![section]
        for productMdl in cartProListMdl.productList! {
            totalPrice += productMdl.skuPrice! * productMdl.amount!
        }
        return totalPrice
    }
    
}