Bark/Controller/SoundsViewController.swift

//
//  SoundsViewController.swift
//  Bark
//
//  Created by huangfeng on 2020/9/14.
//  Copyright © 2020 Fin. All rights reserved.
//

import UIKit
import Material
import AVKit

import RxSwift
import RxCocoa
import RxDataSources
import NSObject_Rx

class SoundsViewController: BaseViewController {
    let tableView: UITableView = {
        let tableView = UITableView()
        tableView.backgroundColor = Color.grey.lighten5
        tableView.register(SoundCell.self, forCellReuseIdentifier: "\(SoundCell.self)")
        return tableView
    }()
    
    override func makeUI() {
        self.title = NSLocalizedString("notificationSound")

        self.view.addSubview(self.tableView)
        self.tableView.snp.makeConstraints { (make) in
            make.edges.equalToSuperview()
        }

        self.tableView.tableHeaderView = {
            let header = UILabel()
            header.fontSize = 12
            header.text = "    \(NSLocalizedString("previewSound"))"
            header.textColor = Color.darkText.secondary
            header.frame = CGRect(x: 0, y: 0, width: 0, height: 40)
            return header
        }()
    }
    override func bindViewModel() {
        guard let viewModel = viewModel as? SoundsViewModel else {
            return
        }
        
        let output = viewModel.transform(
            input: SoundsViewModel.Input(soundSelected: self.tableView.rx
                                            .modelSelected(SoundCellViewModel.self)
                                            .asDriver()))
        
        let dataSource = RxTableViewSectionedReloadDataSource<SectionModel<String,SoundCellViewModel>> { (source, tableView, indexPath, item) -> UITableViewCell in
            guard let cell = tableView.dequeueReusableCell(withIdentifier: "\(SoundCell.self)") as? SoundCell else {
                return UITableViewCell()
            }
            cell.bindViewModel(model: item)
            return cell
        }
        
        output.audios
            .map{ [SectionModel(model: "model", items: $0)] }
            .bind(to: tableView.rx.items(dataSource: dataSource))
            .disposed(by: rx.disposeBag)
        
        output.copyNameAction.drive(onNext: { name in
            UIPasteboard.general.string = name.trimmingCharacters(in: .whitespacesAndNewlines)
            Client.shared.currentNavigationController?.showSnackbar(text: NSLocalizedString("Copy"))
        }).disposed(by: rx.disposeBag)
        
        output.playAction.drive(onNext: { url in
            var soundID:SystemSoundID = 0
            AudioServicesCreateSystemSoundID(url, &soundID)
            AudioServicesPlaySystemSoundWithCompletion(soundID) {
                AudioServicesDisposeSystemSoundID(soundID)
            }
        }).disposed(by: rx.disposeBag)
    }
}