namespace Supercell.Laser.Logic.Home
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using Newtonsoft.Json;
    using Supercell.Laser.Logic.Home.Items;

    public class CustomOfferModel
    {
        public int Id { get; set; }
        public string Title { get; set; }
        public int Cost { get; set; }
        public int OldCost { get; set; }
        public int Currency { get; set; } // 0 = Gems, 1 = Gold, 3 = StarPoints
        public int DaysLeft { get; set; } = 7;
        public List<string> WhoBuy { get; set; } = new List<string>();
        public List<CustomOfferItemModel> Items { get; set; } = new List<CustomOfferItemModel>();
    }

    public class CustomOfferItemModel
    {
        public int Type { get; set; } // 10 = MegaBox, 14 = BigBox, 6 = BrawlBox, 1 = Coin, 16 = Gems
        public int Count { get; set; }
        public int ItemDataId { get; set; }
        public int SkinDataId { get; set; }
    }

    public static class CustomOffers
    {
        private static readonly object LockObj = new object();

        public static string GetFilePath()
        {
            if (File.Exists("/var/www/cdn/v27/src/Supercell.Laser.Server/offers.json"))
                return "/var/www/cdn/v27/src/Supercell.Laser.Server/offers.json";
            if (File.Exists("offers.json"))
                return "offers.json";
            return "/var/www/cdn/v27/src/Supercell.Laser.Server/offers.json";
        }

        public static List<CustomOfferModel> LoadOffers()
        {
            lock (LockObj)
            {
                try
                {
                    string path = GetFilePath();
                    if (File.Exists(path))
                    {
                        string json = File.ReadAllText(path);
                        var list = JsonConvert.DeserializeObject<List<CustomOfferModel>>(json);
                        if (list != null) return list;
                    }
                }
                catch { }

                return new List<CustomOfferModel>();
            }
        }

        public static void SaveOffers(List<CustomOfferModel> offers)
        {
            lock (LockObj)
            {
                try
                {
                    string path = GetFilePath();
                    string json = JsonConvert.SerializeObject(offers, Formatting.Indented);
                    File.WriteAllText(path, json);
                }
                catch { }
            }
        }

        public static void MarkAsBought(int offerId, long accountId)
        {
            lock (LockObj)
            {
                var offers = LoadOffers();
                var target = offers.Find(o => o.Id == offerId);
                if (target != null)
                {
                    if (target.WhoBuy == null) target.WhoBuy = new List<string>();
                    string accStr = accountId.ToString();
                    if (!target.WhoBuy.Contains(accStr))
                    {
                        target.WhoBuy.Add(accStr);
                        SaveOffers(offers);
                    }
                }
            }
        }
    }
}