using GenHTTP.Engine;
using InABox.API;
using InABox.Core;
using InABox.DynamicGrid;
using NPOI.SS.Formula.Functions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;

namespace PRSServer.Forms;

internal class SMSProviderGrid : DynamicGrid<SMSProviderProperties>, IDynamicEditorPage
{
    public DynamicEditorGrid EditorGrid { get; set; }

    public List<SMSProviderProperties> WorkingList { get; set; }

    public bool Ready { get; set; }

    private bool _readOnly;
    public bool ReadOnly
    {
        get => _readOnly;
        set
        {
            if (_readOnly != value)
            {
                _readOnly = value;
                Reconfigure();
            }
        }
    }

    public bool Visible => true;

    public PageType PageType => PageType.Other;

    protected override void DoReconfigure(DynamicGridOptions options)
    {
        base.DoReconfigure(options);
        if (ReadOnly)
        {
            options.EditRows = true;
        }
        else
        {
            options.AddRows = true;
            options.EditRows = true;
            options.DeleteRows = true;
        }
    }

    protected override DynamicGridColumns LoadColumns()
    {
        var result = new DynamicGridColumns();

        result.Add<SMSProviderProperties>(x => x.ProviderType, 100, "Type", "", Alignment.MiddleCenter);

        return result;
    }

    public void AfterSave(object item)
    {
        var serverProperties = item as DatabaseServerProperties;
        serverProperties.SMSProviderProperties = WorkingList.ToDictionary(x => x.ProviderType, x => x.Properties);
    }

    public void BeforeSave(object item)
    {
    }

    public string Caption()
    {
        return "2FA Providers";
    }

    protected override void DoAdd(bool openEditorOnDirectEdit = false)
    {
        var menu = new ContextMenu();
        foreach(var item in Enum.GetValues(typeof(SMSProviderType)))
        {
            if(!WorkingList.Any(x => x.ProviderType == (SMSProviderType)item))
            {
                var menuItem = new MenuItem();
                menuItem.Header = item.ToString();
                menuItem.Tag = item;
                menuItem.Click += MenuItem_Click;
                menu.Items.Add(menuItem);
            }
        }
        if(menu.Items.Count == 0)
        {
            var emptyItem = new MenuItem();
            emptyItem.Header = "No more provider types";
            emptyItem.IsEnabled = false;
            menu.Items.Add(emptyItem);
        }
        menu.IsOpen = true;
    }

    private bool EditProperties(BaseSMSProviderProperties properties)
    {
        var editor = new DynamicEditorForm(properties.GetType());
        editor.ReadOnly = ReadOnly;
        editor.Items = new BaseObject[] { properties };
        return editor.ShowDialog() == true;
    }

    private void MenuItem_Click(object sender, RoutedEventArgs e)
    {
        var smsProviderType = (SMSProviderType)(sender as MenuItem)!.Tag;
        BaseSMSProviderProperties? properties = SMSProviderProperties.ToProperties(smsProviderType, null);

        if(properties != null && EditProperties(properties))
        {
            SaveItem(new SMSProviderProperties()
            {
                ProviderType = smsProviderType,
                Properties = Serialization.Serialize(properties)
            });
            Refresh(false, true);
        }
    }

    public void Load(object item, Func<Type, CoreTable?>? PageDataHandler)
    {
        var data = PageDataHandler?.Invoke(typeof(SMSProviderProperties));
        if (data != null)
        {
            WorkingList = data.Rows.Select(x => x.ToObject<SMSProviderProperties>()).ToList();
        }
        else
        {
            var serverProperties = item as DatabaseServerProperties;
            if(serverProperties?.SMSProviderProperties != null)
            {
                WorkingList = serverProperties.SMSProviderProperties.Select(
                    x => new SMSProviderProperties() { ProviderType = x.Key, Properties = x.Value }).ToList();
            }
            else
            {
                WorkingList = new();
            }
        }

        Refresh(true, true);
        Ready = true;
    }

    public void Cancel()
    {
        // Not doing anything here, even though we really should.
    }

    public Size MinimumSize()
    {
        return new Size(400, 400);
    }

    public int Order { get; set; } = int.MinValue;

    public override void DeleteItems(params CoreRow[] rows)
    {
        foreach(var row in rows)
        {
            WorkingList.RemoveAll(x => x.ProviderType.ToString() == row["ProviderType"].ToString());
        }
    }

    public override bool EditItems(SMSProviderProperties[] items, Func<Type, CoreTable> PageDataHandler = null, bool PreloadPages = false)
    {
        var item = items.FirstOrDefault();
        if (item == null)
            return false;

        BaseSMSProviderProperties? properties = item.ToProperties();

        if (properties != null && EditProperties(properties))
        {
            item.Properties = Serialization.Serialize(properties);
            return true;
        }
        return false;
    }

    public override SMSProviderProperties LoadItem(CoreRow row)
    {
        return WorkingList[row.Index];
    }

    protected override void Reload(
    	Filters<SMSProviderProperties> criteria, Columns<SMSProviderProperties> columns, ref SortOrder<SMSProviderProperties>? sort,
    	CancellationToken token, Action<CoreTable?, Exception?> action)
    {
        var table = new CoreTable();
        table.LoadColumns(typeof(SMSProviderProperties));

        foreach(var item in WorkingList)
        {
            table.LoadRow(item);
        }

        action(table, null);
    }

    public override void SaveItem(SMSProviderProperties item)
    {
        if (!WorkingList.Contains(item))
            WorkingList.Add(item);
    }
}