//
//  GeographicPickView.swift
//  MTP2_iOS
//
//  Created by Handy_Cao on 2020/11/9.
//  Copyright © 2020 Muchinfo. All rights reserved.
//

import UIKit

/// 省市区选择器视图容器控制类
class GeographicPickView: UIViewController {
    
    // MARK: - 属性列表
    /// 取消按钮
    @IBOutlet weak var cancel: UIButton!
    /// 确定按钮
    @IBOutlet weak var sure: UIButton!
    /// 查看全部
    @IBOutlet weak var all: UIButton!
    /// 结果标签
    @IBOutlet weak var reault: UILabel!
    /// 结果标签
    @IBOutlet weak var pickView: UIPickerView!
    /// 地址信息
    var geographics: [MoGeographicPosition] = [] {
        didSet {
            if geographics.count != 0 {
                /// 刷新列表
                pickView.reloadComponent(0)
                if geographics[0].Cities?.count != 0 {
                    /// 默认选中第一个
                    self.citys = geographics[0].Cities
                    self.city = geographics[0].Cities?[0]
                } else { /// 默认显示省份
                    self.citys = []
                    self.city = geographics[0].Province
                }
            }
        }
    }
    var citys: [MoGeographic]? {
        didSet {
            /// 刷新列表
            pickView.reloadComponent(1)
        }
    }
    /// 选中的数据信息
    var city: MoGeographic? {
        didSet {
            /// 更新结果显示
            self.reault.text = self.city?.pathname
        }
    }
    /// 创建block变量
    var callback: ((_ takeInfo: MoGeographic?, _ isSure: Bool) ->())?
    // MARK: - 生命周期相关
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        self.geographics = MTP2BusinessCore.shared.accountManager?.geographics ?? []
    }
    
    // MARK: - 交互相关
    @IBAction func onButtonPressed(_ sender: UIButton) {
        switch sender {
        case cancel: /// 取消按钮
            self.dismiss(animated: true) {
                if self.callback != nil { self.callback!(self.city, false) }
            }
        case all:
            self.dismiss(animated: true) {
                if self.callback != nil { self.callback!(nil, false) }
            }
        default: /// 确定按钮
            self.dismiss(animated: true) {
                if self.callback != nil { self.callback!(self.city, true) }
            }
            break
        }
    }
    
    /// onTapGestureRecognizer
    /// - Parameter sender: sender
    @IBAction fileprivate func onTapGestureRecognizer(_ sender: UITapGestureRecognizer) {
        self.dismiss(animated: true) {
            if self.callback != nil { self.callback!(self.city, false) }
        }
    }

    /*
    // 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.
    }
    */

}

// MARK: - UIPickerViewDelegate, UIPickerViewDataSource
extension GeographicPickView: UIPickerViewDelegate, UIPickerViewDataSource {
    /// numberOfComponents
    /// - Parameter pickerView: pickerView
    /// - Returns: Int
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 2
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        if component == 0 {
            return geographics.count
        } else {
            return citys?.count ?? 0
        }
    }
    
    func pickerView(_ pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
        if component == 0 {
            return geographics[row].Province?.divisionname.withTextColor(UIColorFromHex(rgbValue: 0x6B6177)).withFont(.font_12)
        } else {
            return citys?[row].divisionname.withTextColor(UIColorFromHex(rgbValue: 0x6B6177)).withFont(.font_12)
        }
    }
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        if component == 0 {
            self.citys = geographics[row].Cities
            pickView.selectRow(0, inComponent: 1, animated: true)
            if self.citys?.count != 0 {
                self.city = self.citys?[0]
            } else { /// 如果为空则默认第一个省份
                self.city = geographics[row].Province
            }
        } else {
            if self.citys?.count != 0 {
                self.city = self.citys?[row]
            }
        }
    }
    
    func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {
        return 44.0
    }
}