using System;
using InABox.Core;
using InABox.Mobile;

namespace PRS.Mobile
{
    public class DigitalFormStringPopup : MobileButton, IDigitalFormField<DFLayoutStringField, DFLayoutStringFieldProperties, string, string?>
    {

        private string _value = "";
        
        private DFLayoutStringField? _definition;
        public DFLayoutStringField? Definition
        {
            get => _definition;
            set
            {
                _definition = value;
                Initialize(value ?? new DFLayoutStringField());
            }
        }
        
        public string Value
        {
            get => _value;
            set
            {
                _value = value;
                UpdateUI();
            }
        }
        
        public bool IsEmpty => String.IsNullOrWhiteSpace(Value);
        
        private bool _readOnly;
        public bool ReadOnly
        {
            get => _readOnly;
            set
            {
                _readOnly = value;
                UpdateStatus();
            }
        }
        
        public void Deserialize(DFLoadStorageEntry entry) 
            => Value = Definition?.Properties.DeserializeValue(entry) ?? string.Empty;
        
        public void Serialize(DFSaveStorageEntry entry) 
            => entry.SetValue(Value);
        
        public event DigitalFormViewChangedHandler? ValueChanged;

        public DigitalFormStringPopup()
        {
            Clicked += (s, e) =>
            {
                PopupEditor edt = new PopupEditor(Value);
                edt.OnPopupEdtSaved += (text) =>
                {
                    Value = text;
                    ValueChanged?.Invoke(this, new DigitalFormViewChangedArgs(Definition,Value));
                };
                Navigation.PushAsync(edt);
            };
        }

        
        private void Initialize(DFLayoutStringField definition)
        {
        }
        
        private void UpdateUI()
        {
            Text = String.IsNullOrWhiteSpace(_value)
                ? "Edit"
                : _value.Length > 25
                    ? _value.Substring(0, 25) + "..."
                    : _value;
        }
        
        private void UpdateStatus()
        {
            IsEnabled = !_readOnly && Definition?.Properties.Secure == false;
            
            var colors = DigitalFormUtils.GetColors(!IsEnabled, Definition?.Properties.Required ?? false, true);
            BackgroundColor = colors.Background;
            BorderColor = colors.Border;
            TextColor = colors.Foreground;
        }
    }
}