Proyectos de Subversion Iphone Microlearning

//
//  GridSlideView.swift
//  twogetskills
//
//  Created by Efrain Yanez Recanatini on 2/17/22.
//

import SwiftUI

struct GridSlideView: View {
    @Environment(\.presentationMode)
       var presentationMode: Binding
    
    private let capsuleDao : CapsuleDao = CapsuleDao()
    
    private var capsuleModel : CapsuleModel = CapsuleModel()
    private var viewModel : SlideGridViewModel = SlideGridViewModel()
    private var capsuleTitle : String = ""
    
    private let colorBackgroundTopic = UIColor(hex: Config.COLOR_BACKGROUND_TOPIC)

    private let colorAppTextView = UIColor(hex: Config.COLOR_APP_TEXT_VIEW_TITLE)

    private let colorAppBackground = UIColor(hex: Config.COLOR_APP_BAR)
    

    private let config = [
        GridItem(.fixed(Constants.CARD_WIDTH)),
        GridItem(.fixed(Constants.CARD_WIDTH))
    ]

   @State private var backToCapsules : Bool = false
    
    init(capsuleUuid : String)
    {
        let preference = Preference.sharedInstance
        self.capsuleModel = capsuleDao.selectByUuid(uuid: capsuleUuid)
        viewModel.fetch(capsuleUuid: self.capsuleModel.uuid, userUuid: preference.userUuid)
       
        if self.capsuleModel.name.count > Constants.APP_BAR_TITLE_MAX_LENGTH {
            capsuleTitle = String(Array(self.capsuleModel.name)[0...Constants.APP_BAR_TITLE_MAX_LENGTH]) + "..."
        } else {
            capsuleTitle = self.capsuleModel.name
        }
    }
    
    var body: some View {

            
        VStack(spacing: 0.0) {
            NavigationLink("", destination: GridCapsuleView(topicUuid: self.capsuleModel.topicUuid), isActive: self.$backToCapsules).frame( height: 0)
            
            ScrollView() {
                LazyVGrid(columns: config, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/, spacing: /*@START_MENU_TOKEN@*/nil/*@END_MENU_TOKEN@*/, pinnedViews: /*@START_MENU_TOKEN@*/[]/*@END_MENU_TOKEN@*/, content: {
   
                    ForEach(0..<self.viewModel.slides.count) { i in
                        CardSlideView(slideUuid:  self.viewModel.slides[i].uuid, position: i
                        ).frame(
                            width: Constants.CARD_WIDTH,
                            height: Constants.CARD_HEIGHT,
                            alignment: .center
                        )
                    }
                }).padding(.top, 10)
            }
            Spacer()
        }
        .background(Color(colorBackgroundTopic ?? .gray))
        .navigationBarTitleDisplayMode(.inline)
        .navigationTitle(capsuleTitle)
        .navigationBarBackButtonHidden(true)
        .toolbar {
            ToolbarItem(placement: .navigationBarLeading) {
                Button(action: {
                    //self.presentationMode.wrappedValue.dismiss()
                    self.backToCapsules = true
                }) {
                    HStack {
                        Image(systemName: "chevron.backward")
                            .aspectRatio(contentMode: .fit)
                            .foregroundColor(Color( colorAppTextView ?? .systemBlue))
                            .background(Color(colorAppBackground ?? .systemBlue))
                    }
                }
            
            }
        } .onAppear {
            print("GridSlideView")
        }

    }
}

struct GridSlideView_Previews: PreviewProvider {
    static var previews: some View {
       GridSlideView(capsuleUuid: "C123")
    }
}