using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using EveryThing.Data;
using EveryThing.Models;
using EveryThing.Models.CodeTable;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Authorization;
using Microsoft.VisualStudio.Debugger.Contracts;
using System.Globalization;

namespace EveryThing.Pages.CodeTableItems
{
    [Authorize(Roles = "Administrator,InvoicingUser,ProjecThingUser")]
    public class IndexModel : PageModel
    {
        public class AddEditCodeTableItem
        {
            public CodeTableItem Item { get; set; }
            public bool Edit { get; set; }
            public int IdCodeTableItem { get; set; }
            public IList<File> Files { get; set; }
            public string MaterialPrice { get; set; }
            public string WorkPrice { get; set; }
            public string TotalPrice { get; set; }
            public string SellingPrice { get; set; }
            public string DifferenceInPricePercentage { get; set; }
            public string MaterialDimensions { get; set; }
            public string Material { get; set; }
        }

        private readonly ApplicationDbContext _context;
        private readonly UserManager<IdentityApplicationUser> _userManager;
        private readonly SignInManager<IdentityApplicationUser> _loginManager;
        private readonly RoleManager<IdentityApplicationRole> _roleManager;

        public IndexModel(ApplicationDbContext context, UserManager<IdentityApplicationUser> userManager, SignInManager<IdentityApplicationUser> loginManager, RoleManager<IdentityApplicationRole> roleManager)
        {
            _context = context;
            _userManager = userManager;
            _loginManager = loginManager;
            _roleManager = roleManager;
        }

        public IList<CodeTableItem> Item { get;set; }

        public async Task OnGetAsync(string searchString)
        {
            var user = _userManager.GetUserAsync(User).Result;

            ViewData["SearchString"] = searchString ?? "";

            var search = !string.IsNullOrEmpty(searchString);

            Item = await _context.CodeTableItems
                .Where(x => x.IdCompanyFk == user.IdCompanyFk
                            && EF.Functions.Like(x.Title, $"%{searchString}%")
                            || EF.Functions.Like(x.Description, $"%{searchString}%"))
                .Include(j => j.Company)
                .OrderByDescending(x => x.IdItem).Take(100).ToListAsync();

        }

        public IActionResult OnGetCodeTableItemModal(bool edit, int idCodeTableItem, int codeTableItemType)
        {
            var user = _userManager.GetUserAsync(User).Result;

            CodeTableItem item = null;
            IList<File> files = null;
            var materialPrice = 0d;
            var workPrice = 0d;
            var sellingPrice = 0d;
            var differenceInPricePercentage = 0d;
            var materialDimensions = "";
            var material = "";

            if (edit)
            {
                item = _context.CodeTableItems
                    .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                    .FirstOrDefault(x => x.IdItem == idCodeTableItem);

                files = _context.Files
                    .Where(x => x.IdCompanyFk == user.IdCompanyFk
                                && x.IdReferenceFk == item.IdItem
                                && x.FileType == FileType.CodeTableItem)
                    .ToList();
            }

            if (item == null)
            {
                item = new CodeTableItem();
                item.Active = true;
                item.CodeTableItemType = (CodeTableItemType)codeTableItemType;
            }
            else
            {
                var projectPartItem = _context.ProjectPartItems
                    .Include(x => x.Material)
                    .OrderByDescending(x => x.DateModified)
                    .ThenByDescending(x => x.IdProjectPartItem)
                    .FirstOrDefault(x => x.IdItemFk == item.IdItem);

                if (projectPartItem != null)
                {
                    materialPrice = projectPartItem.MaterialPrice;
                    workPrice = projectPartItem.WorkPrice;
                    sellingPrice = projectPartItem.SellingPrice;
                    differenceInPricePercentage = projectPartItem.DifferenceInPricePercentage;
                    materialDimensions = projectPartItem.MaterialDimensions;
                    material = projectPartItem.Material.Title;
                }
            }
            

            return Partial("AddEditItemModal", new AddEditCodeTableItem
            {
                Item = item,
                Edit = edit,
                IdCodeTableItem = idCodeTableItem,
                Files = files,
                MaterialPrice = materialPrice.ToString("#,###,##0.00", new CultureInfo("sl-SI")),
                SellingPrice =  sellingPrice.ToString("#,###,##0.00", new CultureInfo("sl-SI")),
                TotalPrice =  (materialPrice + workPrice).ToString("#,###,##0.00", new CultureInfo("sl-SI")),
                WorkPrice = workPrice.ToString("#,###,##0.00", new CultureInfo("sl-SI")),
                DifferenceInPricePercentage = differenceInPricePercentage.ToString("#,###,##0.00", new CultureInfo("sl-SI")),
                MaterialDimensions = materialDimensions,
                Material = material
            });
        }

        public IActionResult OnGetCodeTableItem(int idCodeTableItem)
        {
            var user = _userManager.GetUserAsync(User).Result;

            bool successful = true;
            string error = "";
            bool itemInUse = false;

            CodeTableItem item = _context.CodeTableItems
                .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                .Include(x => x.ItemProjectPartItem)
                .Include(x => x.ItemProjectPartItemMaterial)
                .Include(x => x.InvoiceItem)
                .FirstOrDefault(x => x.IdItem == idCodeTableItem);

            if (item == null)
            {
                successful = false;
                error = $"Codetable item with ID: {idCodeTableItem} not found";
            }
            else
            {
                itemInUse = item.ItemProjectPartItem.Count > 0 || item.ItemProjectPartItemMaterial.Count > 0 || item.InvoiceItem.Count > 0;
                //Cene se json zacikla neki IDK.
                item.ItemProjectPartItem = null;
                item.ItemProjectPartItemMaterial = null;
                item.InvoiceItem = null;
            }

            return new JsonResult(new { item = item, error = error, successful = successful, itemInUse = itemInUse });
        }

        public IActionResult OnPostCodeTableItem(string title, string description, bool active, bool edit, int idCodeTableItem, int codeTableItemType)
        {
            var user = _userManager.GetUserAsync(User).Result;
            bool successful = true;
            string error = "";
            if (edit)
            {
                var item = _context.CodeTableItems
                    .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                    .FirstOrDefault(x => x.IdItem == idCodeTableItem);
                if (item != null)
                {
                    item.Title = title;
                    item.Description = description;
                    item.Active = active;
                    item.CodeTableItemType = (CodeTableItemType)codeTableItemType;
                    _context.SaveChanges();
                }
                else
                {
                    successful = false;
                    error = $"Codetable item with ID: {idCodeTableItem} not found";
                }
            }
            else
            {
                var item = new CodeTableItem
                {
                    Title = title,
                    Description = description,
                    Active = active,
                    IdCompanyFk = user.IdCompanyFk,
                    CodeTableItemType = (CodeTableItemType)codeTableItemType
                };
                _context.CodeTableItems.Add(item);
                _context.SaveChanges();

                idCodeTableItem = item.IdItem;
            }

            return new JsonResult(new { idCodeTableItem = idCodeTableItem, error = error, successful = successful });
        }

        public IActionResult OnDeleteCodeTableItem(int idCodeTableItem)
        {
            var user = _userManager.GetUserAsync(User).Result;
            bool successful = true;
            string error = "";

            var item = _context.CodeTableItems
                .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                .FirstOrDefault(x => x.IdItem == idCodeTableItem);
            if (item != null)
            {
                _context.CodeTableItems.Remove(item);
                _context.SaveChanges();
            }
            else
            {
                successful = false;
                error = $"Codetable item with ID: {idCodeTableItem} not found";
            }

            return new JsonResult(new { idCodeTableItem = idCodeTableItem, error = error, successful = successful });
        }

    }
}