//
//  AppSkeleton.swift
//  Mixonomer
//
//  Created by Andy Pack on 16/02/2020.
//  Copyright © 2020 Sarsoo. All rights reserved.
//

import SwiftUI
import Alamofire
import SwiftyJSON

struct AppSkeleton: View {
    
    @EnvironmentObject var liveUser: LiveUser
    
    @State private var selection = 0 // Tab view selection
    
    var body: some View {
        
        if self.liveUser.isInitiallyRefreshingUser
            || self.liveUser.isInitiallyRefreshingPlaylists
            || self.liveUser.isInitiallyRefreshingTags
        {
            LoadingScreen()
                .onAppear {
                    self.fetchAll()
                }
        } else {
            
            TabView {
                
                PlaylistList()
                    .tabItem {
                        VStack {
                            Image(systemName: "music.note.list")
                            Text("Playlists")
                        }
                    }
                    .tag(0)
                
                if liveUser.lastfm_connected() {
                    
                    TagList()
                        .tabItem {
                            VStack {
                                Image(systemName: "tag")
                                Text("Tags")
                            }
                        }
                        .tag(1)
                }
                
                if let user = liveUser.user {
                    if user.type == .admin {
                        AdminList()
                            .tabItem( {
                                VStack {
                                    Image(systemName: "person.badge.key.fill")
                                    Text("Admin")
                                }
                            })
                            .tag(2)
                    }
                }
                
                SettingsList()
                    .tabItem {
                        VStack {
                            Image(systemName: "slider.horizontal.3")
                            Text("Settings")
                        }
                    }
                    .tag(3)
            }
        }
    }
    
    private func fetchAll() {
        self.liveUser.refresh_user()
        self.liveUser.refresh_playlists()
        self.liveUser.refresh_tags()
    }
}

struct RootView_Previews: PreviewProvider {
    static var previews: some View {
        AppSkeleton()
            .environmentObject(LiveUser.get_preview_user())
    }
}