using System;
using System.Threading.Tasks;
using Discord;
using Discord.Commands;
using StackExchange.Redis;

namespace Geekbot.net.Modules
{
    public class Ship : ModuleBase
    {
        private readonly IDatabase redis;
        private readonly Random rnd;

        public Ship(IDatabase redis, Random RandomClient)
        {
            this.redis = redis;
            rnd = RandomClient;
        }

        [Command("Ship", RunMode = RunMode.Async)]
        [Summary("Ask the Shipping meter")]
        public async Task Command([Summary("@User1")] IUser user1, [Summary("@User2")] IUser user2)
        {
            // Create a String
            var dbstring = "";
            if (user1.Id > user2.Id)
                dbstring = $"{user1.Id}-{user2.Id}";
            else
                dbstring = $"{user2.Id}-{user1.Id}";

            var dbval = redis.HashGet($"{Context.Guild.Id}:Ships", dbstring);
            var shippingRate = 0;
            if (dbval.IsNullOrEmpty)
            {
                shippingRate = rnd.Next(1, 100);
                redis.HashSet($"{Context.Guild.Id}:Ships", dbstring, shippingRate);
            }
            else
            {
                shippingRate = int.Parse(dbval.ToString());
            }

            var reply = ":heartpulse: **Matchmaking** :heartpulse:\r\n";
            reply = reply + $":two_hearts: {user1.Mention} :heart: {user2.Mention} :two_hearts:\r\n";
            reply = reply + $"0% [{BlockCounter(shippingRate)}] 100% - {DeterminateSuccess(shippingRate)}";
            await ReplyAsync(reply);
        }

        private string DeterminateSuccess(int rate)
        {
            if (rate < 20)
                return "Not gonna happen";
            if (rate >= 20 && rate < 40)
                return "Not such a good idea";
            if (rate >= 40 && rate < 60)
                return "There might be a chance";
            if (rate >= 60 && rate < 80)
                return "Almost a match, but could work";
            if (rate >= 80)
                return "It's a match";
            return "a";
        }

        private string BlockCounter(int rate)
        {
            var amount = Math.Floor(decimal.Floor(rate / 10));
            Console.WriteLine(amount);
            var blocks = "";
            for (var i = 1; i <= 10; i++)
                if (i <= amount)
                {
                    blocks = blocks + ":white_medium_small_square:";
                    if (i == amount)
                        blocks = blocks + $" {rate}% ";
                }
                else
                {
                    blocks = blocks + ":black_medium_small_square:";
                }
            return blocks;
        }
    }
}