//
//  StudyViewController.swift
//  xingchuangke
//
//  Created by Virgil on 2019/3/22.
//  Copyright © 2019 Virgil. All rights reserved.
//

import UIKit

class StudyTypeViewController: BaseViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {

    @IBOutlet weak var collectionView: UICollectionView!

    @IBOutlet weak var viewTop: UIView!
    var currentType = 0
    override func viewDidLoad() {
        super.viewDidLoad()

        initNavLeftBackButton()
        self.title = "在线学习"

        collectionView.register(UINib(nibName: "StudyCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "StudyCollectionViewCell")

        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.showsVerticalScrollIndicator = false
        collectionView.mj_header = MJRefreshNormalHeader(refreshingBlock: {[weak self] in
            self!.currentPage = 1
            self!.loadData()

        })
        collectionView.mj_header?.lastUpdatedTimeKey = "NewsListViewController"
        collectionView.mj_footer = MJRefreshBackNormalFooter(refreshingBlock: {[weak self] in
            self!.currentPage += 1
            self!.loadData()
        })

    }

    // MARK: =============加载数据===============
    let arrType = NSMutableArray()
    func loadType() {
        if arrType.count > 0 {
            returnData(tag: 1001)
            return
        }
        let url = RequestURL.studyTypeList
        let params = NSMutableDictionary()
        params.setValue(0, forKey: "type")
        loadDataList(url: url, params: params, tag: 1001, array: arrType)
    }
    func loadData() {
        let url = RequestURL.onlineList
        let params = NSMutableDictionary()
        params.setValue("0", forKey: "isRec")
        params.setValue(arrType.getString(index: currentType, key: "id"), forKey: "typeId")
        loadDataListForCollectionView(url: url, params: params, collectionView: collectionView, tag: 1002)

    }
    override func returnData(tag: Int) {
        if tag == 1001 {
            if arrType.count < 1 {
                SVProgressHUD.showError(withStatus: "学习分类获取出错，请联系客服!")
                return
            }
            var arrTitle = [String]()
            for dic in self.arrType {
                arrTitle.append((dic as! NSDictionary).getString(key: "name"))
            }
            let segment = Virgil_SegmentView(frame: CGRect(x: 0, y: 3, width: ScreenWidth, height: 45), titles: arrTitle, defaultColor: CommonUntils.getUIColorFromRGB(rgbValue: 0x333333, alpha: 1.0), currentColor: CommonUntils.getUIColorFromRGB(rgbValue: 0x2094f5, alpha: 1.0), lineHeight: 2, lineIsBottom: true) { [weak self](index) in
                self!.currentType = index
                self!.collectionView.mj_header?.beginRefreshing()
            }
            self.viewTop.removeAll()
            self.viewTop.addSubview(segment)
            self.collectionView.mj_header?.beginRefreshing()
        } else if tag == 1002 {
            collectionView.reloadData()
        }
    }
    override func returnError(tag: Int, type: String) {

    }

    //返回分区个数
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
    }

    //返回每个分区的item个数
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

        return self.arrData.count

    }
    //定义每个UICollectionView 的大小
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {

        return CGSize(width: ScreenWidth / 2, height: (ScreenWidth - 30) / 2 / 170 * 103 + 68)

    }

    //初始化cell
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let  cell  = collectionView.dequeueReusableCell(withReuseIdentifier: "StudyCollectionViewCell", for: indexPath) as! StudyCollectionViewCell
        cell.initCell(rowIndex: indexPath.row, dic: self.arrData[indexPath.row] as! NSDictionary)
        return cell

    }

    //定义每个UICollectionView 的间距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {

        return UIEdgeInsets(top: 20, left: 0, bottom: 0, right: 0)
    }

    //定义每个UICollectionView 纵向的间距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
        return 0
    }

    //选中
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let vc = StudyDetailViewController()
        vc.dicData.setDic(dic: self.arrData[indexPath.row] as! NSDictionary)
        appDelegate.navController.pushViewController(vc, animated: true)
    }

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        loadType()
    }

    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: "StudyTypeViewController", bundle: nil)
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}