/*
 * Copyright (c) 2010-2023 Belledonne Communications SARL.
 *
 * This file is part of linphone-iphone
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import SwiftUI
import linphonesw

struct ContactsInnerFragment: View {
	
	@ObservedObject var sharedMainViewModel = SharedMainViewModel.shared
	@ObservedObject var contactsManager = ContactsManager.shared
	@ObservedObject var magicSearch = MagicSearchSingleton.shared
	
	@EnvironmentObject var contactsListViewModel: ContactsListViewModel
	
	@State private var isFavoriteOpen = true
	
	@Binding var showingSheet: Bool
	@Binding var text: String
	
	var body: some View {
		ZStack {
			VStack(alignment: .leading) {
				if contactsManager.avatarListModel.contains(where: { $0.starred }) {
					HStack(alignment: .center) {
						Text("contacts_list_favourites_title")
							.default_text_style_800(styleSize: 16)
						
						Spacer()
						
						Image(isFavoriteOpen ? "caret-up" : "caret-down")
							.renderingMode(.template)
							.resizable()
							.foregroundStyle(Color.grayMain2c600)
							.frame(width: 25, height: 25, alignment: .leading)
							.padding(.all, 10)
					}
					.padding(.top, 10)
					.padding(.horizontal, 16)
					.background(.white)
					.onTapGesture {
						withAnimation {
							isFavoriteOpen.toggle()
						}
					}
					
					if isFavoriteOpen {
						FavoriteContactsListFragment(showingSheet: $showingSheet)
							.zIndex(-1)
							.transition(.move(edge: .top))
					}
					
					HStack(alignment: .center) {
						Text("contacts_list_all_contacts_title")
							.default_text_style_800(styleSize: 16)
						
						Spacer()
					}
					.padding(.top, 10)
					.padding(.horizontal, 16)
				}
				
				VStack {
					List {
						ContactsListFragment(showingSheet: $showingSheet, startCallFunc: {_ in })}
					.safeAreaInset(edge: .top, content: {
						Spacer()
							.frame(height: 12)
					})
					.listStyle(.plain)
					.if(sharedMainViewModel.cardDavFriendsListsCount > 0) { view in
						view.refreshable {
							contactsManager.refreshCardDavContacts()
						}
					}
					.overlay(
						VStack {
							if contactsManager.avatarListModel.isEmpty {
								Spacer()
								Image("illus-belledonne")
									.resizable()
									.scaledToFit()
									.clipped()
									.padding(.all)
								Text(!text.isEmpty ? "list_filter_no_result_found" : "contacts_list_empty")
									.default_text_style_800(styleSize: 16)
								Spacer()
								Spacer()
							}
						}
							.padding(.all)
					)
				}
			}
			
			if magicSearch.isLoading {
				ProgressView()
					.controlSize(.large)
					.progressViewStyle(CircularProgressViewStyle(tint: .orangeMain500))
			}
		}
		.navigationBarHidden(true)
	}
}

#Preview {
	ContactsInnerFragment(showingSheet: .constant(false), text: .constant(""))
}