using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Castle.Core.Internal;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using Props.Data;
using Props.Extensions;
using Props.Models.Search;
using Props.Models.User;
using Props.Services.Modules;
using Props.Shop.Framework;

namespace Props.Pages
{
    public class SearchModel : PageModel
    {
        [BindProperty(Name = "q", SupportsGet = true)]
        public string SearchQuery { get; set; }
        public IEnumerable<ProductListing> SearchResults { get; private set; }
        public ProductListing BestRatingPriceRatio { get; private set; }
        public ProductListing TopRated { get; private set; }
        public ProductListing MostPurchases { get; private set; }
        public ProductListing MostReviews { get; private set; }
        public ProductListing BestPrice { get; private set; }

        private ISearchManager searchManager;
        private UserManager<ApplicationUser> userManager;
        private IMetricsManager analytics;

        public SearchModel(ISearchManager searchManager, UserManager<ApplicationUser> userManager, IMetricsManager analyticsManager)
        {
            this.searchManager = searchManager;
            this.userManager = userManager;
            this.analytics = analyticsManager;
        }

        public async Task OnGet()
        {
            if (string.IsNullOrWhiteSpace(SearchQuery)) return;
            SearchOutline activeSearchOutline = User.Identity.IsAuthenticated ? (await userManager.GetUserAsync(User)).searchOutlinePreferences.ActiveSearchOutline : new SearchOutline();
            this.SearchResults = searchManager.Search(SearchQuery, activeSearchOutline);
            BestRatingPriceRatio = (from result in SearchResults orderby result.GetRatingToPriceRatio() descending select result).FirstOrDefault((listing) => listing.GetRatingToPriceRatio() >= 0.5f);
            TopRated = (from result in SearchResults orderby result.Rating descending select result).FirstOrDefault();
            MostPurchases = (from result in SearchResults orderby result.PurchaseCount descending select result).FirstOrDefault();
            MostReviews = (from result in SearchResults orderby result.ReviewCount descending select result).FirstOrDefault();
            BestPrice = (from result in SearchResults orderby result.UpperPrice descending select result).FirstOrDefault();
        }
    }
}