using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.AspNetCore.Identity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using HyperCube.Models;
using Console = HyperCube.Utils.AdvConsole;

namespace HyperCube.Pages
{
    public partial class SurveyEditor : ComponentBase
    {
        [Inject]
        NavigationManager NavigationManager { get; set; }
        [Inject]
        AuthenticationStateProvider AuthenticationStateProvider { get; set; }
        [Inject]
        UserManager<IdentityUser> UserManager { get; set; }

        [Parameter]
        public int ID { get; set; }

        AccountModel _currentAccount;
        Survey _survey = new();

        List<KeyValuePair<int, SurveyItem>> _sortedItems = new(); /// wrap for items sorting        

        ModalInfo _modalInfo;

        protected override async Task OnInitializedAsync()
        {
            _currentAccount = await GetCurrentAcc();

            if (ID > 0)
            {
                var surveys = await MySQLConnector.Instance().SQLSelectComplex($"SELECT * FROM surveys WHERE id={ID}");
                if (surveys.Count > 0)
                {
                    _survey = new()
                    {
                        EvenID = Convert.ToInt32(surveys[0]["eventid"]),
                        ID = Convert.ToInt32(surveys[0]["id"]),
                        Name = Convert.ToString(surveys[0]["name"]),
                        Description = Convert.ToString(surveys[0]["description"]),
                        DateCreated = Convert.ToDateTime(surveys[0]["date_created"]),
                        DateUpdated = Convert.ToDateTime(surveys[0]["date_updated"]),
                        CreatorID = Convert.ToString(surveys[0]["creatorid"]),
                        IsNew = false
                    };
                    Console.WriteLine($"SurveyEditor. load survey id: {_survey.ID}, name: {_survey.Name}");
                }

                SurveyItem item;
                SurveyItemOption option;
                int itemPosition = 1;
                int optionPosition = 1;

                var surveyItems = await MySQLConnector.Instance().SQLSelectComplex($"SELECT * FROM surveyitems WHERE surveyid={_survey.ID} AND deleted<>1 ORDER BY position");
                if (surveyItems.Count > 0)
                {
                    Console.WriteLine($"surveyItems.Count={surveyItems.Count}");

                    foreach (var i in surveyItems)
                    {
                        item = new()
                        {
                            ID = Convert.ToInt32(i["id"]),
                            SurveyID = Convert.ToInt32(i["surveyid"]),
                            DateCreated = Convert.ToDateTime(i["date_created"]),
                            DateUpdated = Convert.ToDateTime(i["date_updated"]),
                            CreatorID = Convert.ToString(i["creatorid"]),
                            Text = Convert.ToString(i["itemtext"]),
                            //Position = Convert.ToInt32(i["position"]),
                            Position = itemPosition++,
                            Required = Convert.ToBoolean(i["required"]),
                            IsNew = false
                        };
                        Console.WriteLine($"SurveyEditor. load survey [{item.SurveyID}] item id: {item.ID}, position: {item.Position}, name: {item.Text}");

                        var surveyItemOption = await MySQLConnector.Instance().SQLSelectComplex($"SELECT * FROM surveyitemoptions WHERE itemid={item.ID} AND deleted<>1 ORDER BY position");
                        if (surveyItemOption.Count > 0)
                        {
                            Console.WriteLine($"surveyItemOption.Count={surveyItemOption.Count}");

                            foreach (var o in surveyItemOption)
                            {
                                option = new()
                                {
                                    ID = Convert.ToInt32(o["id"]),
                                    ItemID = Convert.ToInt32(o["itemid"]),
                                    DateCreated = Convert.ToDateTime(o["date_created"]),
                                    DateUpdated = Convert.ToDateTime(o["date_updated"]),
                                    CreatorID = Convert.ToString(o["creatorid"]),
                                    Text = Convert.ToString(o["optiontext"]),
                                    //Position = Convert.ToInt32(o["position"]),
                                    Position = optionPosition++,
                                    Rate1 = Convert.ToInt32(o["rate1"]),
                                    Rate2 = Convert.ToInt32(o["rate2"]),
                                    Rate3 = Convert.ToInt32(o["rate3"]),
                                    Rate4 = Convert.ToInt32(o["rate4"]),
                                    IsNew = false
                                };                                
                                Console.WriteLine($"SurveyEditor. load survey [{item.SurveyID}] item [{item.ID}] option id: {option.ID}, position: {option.Position}, name: {option.Text}.");

                                item.SurveyItemOptions.Add(option.ID, option);
                            }                            
                        }
                        _survey.SurveyItems.Add(item.ID, item);
                        SortOptions(item.ID);
                    }
                    SortItems();
                }                               
            }
        }

        void NewSurvey() => NavigationManager.NavigateTo("surveyeditor", true);

        void AddNewItem()
        {
            _survey.AddNewItem(_currentAccount.UUID);
            SortItems();
        }

        void ItemMove(int itemID, int step)
        {
            _survey.MoveItem(itemID, step);
            SortItems();
        }

        void ItemDelete(int itemID)
        {
            _survey.DeleteItem(itemID);
            SortItems();
        }

        void AddNewOption(int itemID)
        {
            _survey.SurveyItems[itemID].AddNewOption(_currentAccount.UUID);
            SortOptions(itemID);
        } 

        void OptionMove(int itemID, int optionID, int step)
        {
            _survey.SurveyItems[itemID].MoveItem(optionID, step);
            SortOptions(itemID);
        }

        void OptionDelete(int itemID, int optionID)
        {
            _survey.SurveyItems[itemID].DeleteOption(optionID);
            SortOptions(itemID);
        }

        async Task SaveSurvey()
        {
            await _survey.Save(_currentAccount.UUID);
            _modalInfo.Open("Опрос сохранен.");
        }

        void SortItems()
        {
            int itemPosition = 1;
            _sortedItems = _survey.SurveyItems.OrderBy(i => i.Value.Position).ToList();
            foreach (var item in _sortedItems) { item.Value.Position = itemPosition++; }
        }

        void SortOptions(int itemID)
        {
            int optionPosition = 1;
            _survey.SurveyItems[itemID].SurveyItemOptionsSorted = _survey.SurveyItems[itemID].SurveyItemOptions.OrderBy(i => i.Value.Position).ToList();
            foreach (var item in _survey.SurveyItems[itemID].SurveyItemOptionsSorted) { item.Value.Position = optionPosition++; }
        }

        async Task<AccountModel> GetCurrentAcc()
        {
            Console.WriteLine($"SurveyEditor GetCurrentAcc");

            if (_currentAccount == null)
            {
                var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
                var user = authState.User;

                if (user.Identity.IsAuthenticated)
                {
                    var currentUser = await UserManager.GetUserAsync(user);
                    var acc = AccountModel.Find(currentUser.Id);
                    if (acc != null)
                    {
                        _currentAccount = AccountModel.Loaded[currentUser.Id];
                    }
                    else
                    {
                        Dictionary<string, AccountModel> accounts = await MySQLConnector.Instance().SQLSelectASPUsers();
                        if (accounts.ContainsKey(currentUser.Id))
                            _currentAccount = accounts[currentUser.Id];
                    }
                }
            }
            return _currentAccount;
        }
    }
}