using System;
using AddressBook;
using AddressBookUI;

namespace Shared
{
    public static class Contacts
    {
        public static Action<string, string> ContactAction;
        public static void Open()
        {
            switch (ABAddressBook.GetAuthorizationStatus())
            {
                case ABAuthorizationStatus.NotDetermined:
                    Foundation.NSError s=null;
                    ABAddressBook.Create(out s).RequestAccess((b, ss) => {
                        Shared.Application.RunOnMainThread(() =>
                        {
                            if (b)
                            {
                                var picker = new ABPeoplePickerNavigationController();
                                picker.Cancelled += Picker_Cancelled;
                                picker.SelectPerson2 += Picker_SelectPerson2;
                                BaseViewController.Instance.PresentViewController(picker, true, null);
                            }
                            else {
                                ContactAction?.Invoke(null, null);
                            }
                        });
                    });
                    break;
                case ABAuthorizationStatus.Authorized:
                    {
                        var picker = new ABPeoplePickerNavigationController();
                        picker.Cancelled += Picker_Cancelled;
                        picker.SelectPerson2 += Picker_SelectPerson2;
                        BaseViewController.Instance.PresentViewController(picker, true, null);
                    }
                    break;
                default:
                    ContactAction?.Invoke(null, null);
                    break;
            }
        }

        private static void Picker_SelectPerson2(object sender, ABPeoplePickerSelectPerson2EventArgs e)
        {
            var person=  e.Person;
            string phone = "";
            foreach(var v in person.GetPhones()) {
                if (!string.IsNullOrEmpty(v.Value))
                {
                    phone = v.Value.Replace("-", " ").Replace(" ", "");
                    break;
                } 
            }
            ContactAction?.Invoke((person.LastName + " " + person.FirstName).Trim(' '), phone);
        }

        private static void Picker_Cancelled(object sender, EventArgs e)
        {
            ContactAction?.Invoke(null, null);
        }

    }
}