Server shops added. $shop, $buy, $shopadd, $shoprm and $shoplistadd added

src/NadekoBot/DataStructures/IndexedCollection.cs

@@ -0,0 +1,128 @@
+using NadekoBot.Services.Database.Models;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace NadekoBot.DataStructures
+{
+    public class IndexedCollection<T> : IList<T> where T : IIndexed
+    {
+        public List<T> Source { get; }
+        private readonly object _locker = new object();
+
+        public IndexedCollection(IEnumerable<T> source)
+        {
+            lock (_locker)
+            {
+                Source = source.OrderBy(x => x.Index).ToList();
+                for (var i = 0; i < Source.Count; i++)
+                {
+                    if (Source[i].Index != i)
+                        Source[i].Index = i;
+                }
+            }
+        }
+
+        public static implicit operator List<T>(IndexedCollection<T> x) =>
+            x.Source;
+
+        public IEnumerator<T> GetEnumerator() =>
+            Source.GetEnumerator();
+
+        IEnumerator IEnumerable.GetEnumerator() =>
+            Source.GetEnumerator();
+
+        public void Add(T item)
+        {
+            lock (_locker)
+            {
+                item.Index = Source.Count;
+                Source.Add(item);
+            }
+        }
+
+        public virtual void Clear()
+        {
+            lock (_locker)
+            {
+                Source.Clear();
+            }
+        }
+
+        public bool Contains(T item)
+        {
+            lock (_locker)
+            {
+                return Source.Contains(item);
+            }
+        }
+
+        public void CopyTo(T[] array, int arrayIndex)
+        {
+            lock (_locker)
+            {
+                Source.CopyTo(array, arrayIndex);
+            }
+        }
+
+        public virtual bool Remove(T item)
+        {
+            bool removed;
+            lock (_locker)
+            {
+                if (removed = Source.Remove(item))
+                {
+                    for (int i = 0; i < Source.Count; i++)
+                    {
+                        // hm, no idea how ef works, so I don't want to set if it's not changed, 
+                        // maybe it will try to update db? 
+                        // But most likely it just compares old to new values, meh.
+                        if (Source[i].Index != i)
+                            Source[i].Index = i;
+                    }
+                }
+            }
+            return removed;
+        }
+
+        public int Count => Source.Count;
+        public bool IsReadOnly => false;
+        public int IndexOf(T item) => item.Index;
+
+        public virtual void Insert(int index, T item)
+        {
+            lock (_locker)
+            {
+                Source.Insert(index, item);
+                for (int i = index; i < Source.Count; i++)
+                {
+                    Source[i].Index = i;
+                }
+            }
+        }
+
+        public virtual void RemoveAt(int index)
+        {
+            lock (_locker)
+            {
+                Source.RemoveAt(index);
+                for (int i = index; i < Source.Count; i++)
+                {
+                    Source[i].Index = i;
+                }
+            }
+        }
+
+        public virtual T this[int index] {
+            get { return Source[index]; }
+            set {
+                lock (_locker)
+                {
+                    value.Index = index;
+                    Source[index] = value;
+                }
+            }
+        }
+    }
+
+}

src/NadekoBot/DataStructures/PermissionsCollection.cs

@@ -6,132 +6,67 @@ using NadekoBot.Services.Database.Models;
 
 namespace NadekoBot.DataStructures
 {
-    public class PermissionsCollection<T> : IList<T> where T : IIndexed
+    public class PermissionsCollection<T> : IndexedCollection<T> where T : IIndexed
     {
-        public List<T> Source { get; }
+        private readonly object _localLocker = new object();
-        private readonly object _locker = new object();
+        public PermissionsCollection(IEnumerable<T> source) : base(source)
-
-        public PermissionsCollection(IEnumerable<T> source)
         {
-            lock (_locker)
-            {
-                Source = source.OrderBy(x => x.Index).ToList();
-                for (var i = 0; i < Source.Count; i++)
-                {
-                    if(Source[i].Index != i)
-                        Source[i].Index = i;
-                }
-            }
         }
 
         public static implicit operator List<T>(PermissionsCollection<T> x) => 
             x.Source;
 
-        public IEnumerator<T> GetEnumerator() =>
+        public override void Clear()
-            Source.GetEnumerator();
-
-        IEnumerator IEnumerable.GetEnumerator() =>
-            Source.GetEnumerator();
-
-        public void Add(T item)
         {
-            lock (_locker)
+            lock (_localLocker)
-            {
-                item.Index = Source.Count;
-                Source.Add(item);
-            }
-        }
-
-        public void Clear()
-        {
-            lock (_locker)
             {
                 var first = Source[0];
-                Source.Clear();
+                base.Clear();
                 Source[0] = first;
             }
         }
 
-        public bool Contains(T item)
+        public override bool Remove(T item)
-        {
-            lock (_locker)
-            {
-                return Source.Contains(item);
-            }
-        }
-
-        public void CopyTo(T[] array, int arrayIndex)
-        {
-            lock (_locker)
-            {
-                Source.CopyTo(array, arrayIndex);
-            }
-        }
-
-        public bool Remove(T item)
         {
             bool removed;
-            lock (_locker)
+            lock (_localLocker)
             {
                 if(Source.IndexOf(item) == 0)
                     throw new ArgumentException("You can't remove first permsission (allow all)");
-                if (removed = Source.Remove(item))
+                removed = base.Remove(item);
-                {
-                    for (int i = 0; i < Source.Count; i++)
-                    {
-                        // hm, no idea how ef works, so I don't want to set if it's not changed, 
-                        // maybe it will try to update db? 
-                        // But most likely it just compares old to new values, meh.
-                        if (Source[i].Index != i)
-                            Source[i].Index = i;
-                    }
-                }
             }
             return removed;
         }
 
-        public int Count => Source.Count;
+        public override void Insert(int index, T item)
-        public bool IsReadOnly => false;
-        public int IndexOf(T item) => item.Index;
-
-        public void Insert(int index, T item)
         {
-            lock (_locker)
+            lock (_localLocker)
             {
                 if(index == 0) // can't insert on first place. Last item is always allow all.
                     throw new IndexOutOfRangeException(nameof(index));
-                Source.Insert(index, item);
+                base.Insert(index, item);
-                for (int i = index; i < Source.Count; i++)
-                {
-                    Source[i].Index = i;
-                }
             }
         }
 
-        public void RemoveAt(int index)
+        public override void RemoveAt(int index)
         {
-            lock (_locker)
+            lock (_localLocker)
             {
                 if(index == 0) // you can't remove first permission (allow all)
                     throw new IndexOutOfRangeException(nameof(index));
 
-                Source.RemoveAt(index);
+                base.RemoveAt(index);
-                for (int i = index; i < Source.Count; i++)
-                {
-                    Source[i].Index = i;
-                }
             }
         }
 
-        public T this[int index] {
+        public override T this[int index] {
             get { return Source[index]; }
             set {
-                lock (_locker)
+                lock (_localLocker)
                 {
                     if(index == 0) // can't set first element. It's always allow all
                         throw new IndexOutOfRangeException(nameof(index));
-                    value.Index = index;
+                    base[index] = value;
-                    Source[index] = value;
                 }
             }
         }

src/NadekoBot/Migrations/20170405161814_flower-shop.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace NadekoBot.Migrations
+{
+    public partial class flowershop : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ShopEntry",
+                columns: table => new
+                {
+                    Id = table.Column<int>(nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    AuthorId = table.Column<ulong>(nullable: false),
+                    DateAdded = table.Column<DateTime>(nullable: true),
+                    GuildConfigId = table.Column<int>(nullable: true),
+                    Index = table.Column<int>(nullable: false),
+                    Name = table.Column<string>(nullable: true),
+                    Price = table.Column<int>(nullable: false),
+                    RoleId = table.Column<ulong>(nullable: false),
+                    RoleName = table.Column<string>(nullable: true),
+                    Type = table.Column<int>(nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopEntry", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopEntry_GuildConfigs_GuildConfigId",
+                        column: x => x.GuildConfigId,
+                        principalTable: "GuildConfigs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopEntryItem",
+                columns: table => new
+                {
+                    Id = table.Column<int>(nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    DateAdded = table.Column<DateTime>(nullable: true),
+                    ShopEntryId = table.Column<int>(nullable: true),
+                    Text = table.Column<string>(nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopEntryItem", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopEntryItem_ShopEntry_ShopEntryId",
+                        column: x => x.ShopEntryId,
+                        principalTable: "ShopEntry",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopEntry_GuildConfigId",
+                table: "ShopEntry",
+                column: "GuildConfigId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopEntryItem_ShopEntryId",
+                table: "ShopEntryItem",
+                column: "ShopEntryId");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ShopEntryItem");
+
+            migrationBuilder.DropTable(
+                name: "ShopEntry");
+        }
+    }
+}

src/NadekoBot/Migrations/NadekoSqliteContextModelSnapshot.cs

@@ -971,6 +971,54 @@ namespace NadekoBot.Migrations
                     b.ToTable("SelfAssignableRoles");
                 });
 
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.ShopEntry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<ulong>("AuthorId");
+
+                    b.Property<DateTime?>("DateAdded");
+
+                    b.Property<int?>("GuildConfigId");
+
+                    b.Property<int>("Index");
+
+                    b.Property<string>("Name");
+
+                    b.Property<int>("Price");
+
+                    b.Property<ulong>("RoleId");
+
+                    b.Property<string>("RoleName");
+
+                    b.Property<int>("Type");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("GuildConfigId");
+
+                    b.ToTable("ShopEntry");
+                });
+
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.ShopEntryItem", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<DateTime?>("DateAdded");
+
+                    b.Property<int?>("ShopEntryId");
+
+                    b.Property<string>("Text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ShopEntryId");
+
+                    b.ToTable("ShopEntryItem");
+                });
+
             modelBuilder.Entity("NadekoBot.Services.Database.Models.SlowmodeIgnoredRole", b =>
                 {
                     b.Property<int>("Id")
@@ -1377,6 +1425,20 @@ namespace NadekoBot.Migrations
                         .HasForeignKey("BotConfigId");
                 });
 
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.ShopEntry", b =>
+                {
+                    b.HasOne("NadekoBot.Services.Database.Models.GuildConfig")
+                        .WithMany("ShopEntries")
+                        .HasForeignKey("GuildConfigId");
+                });
+
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.ShopEntryItem", b =>
+                {
+                    b.HasOne("NadekoBot.Services.Database.Models.ShopEntry")
+                        .WithMany("Items")
+                        .HasForeignKey("ShopEntryId");
+                });
+
             modelBuilder.Entity("NadekoBot.Services.Database.Models.SlowmodeIgnoredRole", b =>
                 {
                     b.HasOne("NadekoBot.Services.Database.Models.GuildConfig")

src/NadekoBot/Modules/Gambling/Commands/FlowerShop.cs

@@ -0,0 +1,350 @@
+using Discord;
+using Discord.Commands;
+using Microsoft.EntityFrameworkCore;
+using NadekoBot.Attributes;
+using NadekoBot.DataStructures;
+using NadekoBot.Extensions;
+using NadekoBot.Services;
+using NadekoBot.Services.Database;
+using NadekoBot.Services.Database.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace NadekoBot.Modules.Gambling
+{
+    public partial class Gambling
+    {
+        [Group]
+        public class FlowerShop : NadekoSubmodule
+        {
+            public enum Role
+            {
+                Role
+            }
+
+            public enum List
+            {
+                List
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            public async Task Shop(int page = 1)
+            {
+                if (page <= 0)
+                    return;
+                page -= 1;
+                List<ShopEntry> entries;
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    entries = new IndexedCollection<ShopEntry>(uow.GuildConfigs.For(Context.Guild.Id, 
+                        set => set.Include(x => x.ShopEntries)
+                                  .ThenInclude(x => x.Items)).ShopEntries);
+                }
+
+                await Context.Channel.SendPaginatedConfirmAsync(page + 1, (curPage) =>
+                {
+                    var theseEntries = entries.Skip((curPage - 1) * 9).Take(9);
+
+                    if (!theseEntries.Any())
+                        return new EmbedBuilder().WithErrorColor()
+                            .WithDescription(GetText("shop_none"));
+                    var embed = new EmbedBuilder().WithOkColor()
+                        .WithTitle(GetText("shop", CurrencySign));
+
+                    for (int i = 0; i < entries.Count; i++)
+                    {
+                        var entry = entries[i];
+                        embed.AddField(efb => efb.WithName($"#{i + 1} - {entry.Price}{CurrencySign}").WithValue(EntryToString(entry)).WithIsInline(true));
+                    }
+                    return embed;
+                }, entries.Count / 9, true);
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            public async Task Buy(int index, [Remainder]string message = null)
+            {
+                index -= 1;
+                if (index < 0)
+                    return;
+                ShopEntry entry;
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    var config = uow.GuildConfigs.For(Context.Guild.Id, set => set
+                        .Include(x => x.ShopEntries)
+                        .ThenInclude(x => x.Items));
+                    var entries = new IndexedCollection<ShopEntry>(config.ShopEntries);
+                    entry = entries.ElementAtOrDefault(index);
+                    uow.Complete();
+                }
+
+                if (entry == null)
+                {
+                    await ReplyErrorLocalized("shop_item_not_found").ConfigureAwait(false);
+                    return;
+                }
+
+                if (entry.Type == ShopEntryType.Role)
+                {
+                    var guser = (IGuildUser)Context.User;
+                    var role = Context.Guild.GetRole(entry.RoleId);
+
+                    if (role == null)
+                    {
+                        await ReplyErrorLocalized("shop_role_not_found").ConfigureAwait(false);
+                        return;
+                    }
+
+                    if (await CurrencyHandler.RemoveCurrencyAsync(Context.User.Id, $"Shop purchase - {entry.Type}", entry.Price))
+                    {
+                        try
+                        {
+                            await guser.AddRolesAsync(role).ConfigureAwait(false);
+                        }
+                        catch (Exception ex)
+                        {
+                            _log.Warn(ex);
+                            await CurrencyHandler.AddCurrencyAsync(Context.User.Id, $"Shop error refund", entry.Price);
+                            await ReplyErrorLocalized("shop_role_purchase_error").ConfigureAwait(false);
+                            return;
+                        }
+                        await CurrencyHandler.AddCurrencyAsync(entry.AuthorId, $"Shop sell item - {entry.Type}", GetProfitAmount(entry.Price));
+                        await ReplyConfirmLocalized("shop_role_purchase", Format.Bold(role.Name)).ConfigureAwait(false);
+                        return;
+                    }
+                    else
+                    {
+                        await ReplyErrorLocalized("not_enough", CurrencySign).ConfigureAwait(false);
+                        return;
+                    }
+                }
+                else if (entry.Type == ShopEntryType.List)
+                {
+                    if (entry.Items.Count == 0)
+                    {
+                        await ReplyErrorLocalized("out_of_stock").ConfigureAwait(false);
+                        return;
+                    }
+
+                    var item = entry.Items.ToArray()[new NadekoRandom().Next(0, entry.Items.Count)];
+
+                    if (await CurrencyHandler.RemoveCurrencyAsync(Context.User.Id, $"Shop purchase - {entry.Type}", entry.Price))
+                    {
+                        int removed;
+                        using (var uow = DbHandler.UnitOfWork())
+                        {
+                            var x = uow._context.Set<ShopEntryItem>().Remove(item);
+
+                            removed = uow.Complete();
+                        }
+                        _log.Warn($"Removed {removed} items");
+                        try
+                        {
+                            await (await Context.User.CreateDMChannelAsync())
+                                .EmbedAsync(new EmbedBuilder().WithOkColor()
+                                .WithTitle(GetText("shop_purchase", Context.Guild.Name))
+                                .AddField(efb => efb.WithName(GetText("item")).WithValue(item.Text).WithIsInline(false))
+                                .AddField(efb => efb.WithName(GetText("price")).WithValue(entry.Price.ToString()).WithIsInline(true))
+                                .AddField(efb => efb.WithName(GetText("name")).WithValue(entry.Name).WithIsInline(true)))
+                                .ConfigureAwait(false);
+
+                            await CurrencyHandler.AddCurrencyAsync(Context.User.Id,
+                                    $"Shop error refund - {entry.Name}",
+                                    GetProfitAmount(entry.Price)).ConfigureAwait(false);
+                        }
+                        catch
+                        {
+                            using (var uow = DbHandler.UnitOfWork())
+                            {
+                                uow._context.Set<ShopEntryItem>().Add(item);
+                                uow.Complete();
+
+                                await CurrencyHandler.AddCurrencyAsync(Context.User.Id, 
+                                    $"Shop error refund - {entry.Name}", 
+                                    entry.Price, 
+                                    uow).ConfigureAwait(false);
+                            }
+                            await ReplyErrorLocalized("shop_buy_error").ConfigureAwait(false);
+                            return;
+                        }
+                        await ReplyConfirmLocalized("shop_item_purchase").ConfigureAwait(false);
+                    }
+                    else
+                    {
+                        await ReplyErrorLocalized("not_enough", CurrencySign).ConfigureAwait(false);
+                        return;
+                    }
+                }
+
+            }
+
+            private long GetProfitAmount(int price) => 
+                (int)(Math.Ceiling(0.90 * price));
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.Administrator)]
+            [RequireBotPermission(GuildPermission.ManageRoles)]
+            public async Task ShopAdd(Role _, int price, [Remainder] IRole role)
+            {
+                var entry = new ShopEntry()
+                {
+                    Name = "-",
+                    Price = price,
+                    Type = ShopEntryType.Role,
+                    AuthorId = Context.User.Id,
+                    RoleId = role.Id,
+                    RoleName = role.Name
+                };
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigs.For(Context.Guild.Id, 
+                        set => set.Include(x => x.ShopEntries)
+                                  .ThenInclude(x => x.Items)).ShopEntries);
+                    entries.Add(entry);
+                    uow.GuildConfigs.For(Context.Guild.Id, set => set).ShopEntries = entries;
+                    uow.Complete();
+                }
+                await Context.Channel.EmbedAsync(EntryToEmbed(entry)
+                    .WithTitle(GetText("shop_item_add")));
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.Administrator)]
+            public async Task ShopAdd(List _, int price, [Remainder]string name)
+            {
+                var entry = new ShopEntry()
+                {
+                    Name = name.TrimTo(100),
+                    Price = price,
+                    Type = ShopEntryType.List,
+                    AuthorId = Context.User.Id,
+                    Items = new HashSet<ShopEntryItem>(),
+                };
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigs.For(Context.Guild.Id,
+                        set => set.Include(x => x.ShopEntries)
+                                  .ThenInclude(x => x.Items)).ShopEntries);
+                    entries.Add(entry);
+                    uow.GuildConfigs.For(Context.Guild.Id, set => set).ShopEntries = entries;
+                    uow.Complete();
+                }
+                await Context.Channel.EmbedAsync(EntryToEmbed(entry)
+                    .WithTitle(GetText("shop_item_add")));
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.Administrator)]
+            public async Task ShopListAdd(int index, [Remainder] string itemText)
+            {
+                index -= 1;
+                if (index < 0)
+                    return;
+                var item = new ShopEntryItem()
+                {
+                    Text = itemText
+                };
+                ShopEntry entry;
+                bool rightType = false;
+                bool added = false;
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigs.For(Context.Guild.Id,
+                        set => set.Include(x => x.ShopEntries)
+                                  .ThenInclude(x => x.Items)).ShopEntries);
+                    entry = entries.ElementAtOrDefault(index);
+                    if (entry != null && (rightType = (entry.Type == ShopEntryType.List)))
+                    {
+                        if (added = entry.Items.Add(item))
+                        {
+                            uow.Complete();
+                        }
+                    }
+                }
+                if (entry == null)
+                    await ReplyErrorLocalized("shop_item_not_found").ConfigureAwait(false);
+                else if (!rightType)
+                    await ReplyErrorLocalized("shop_item_wrong_type").ConfigureAwait(false);
+                else if (added == false)
+                    await ReplyErrorLocalized("shop_list_item_not_unique").ConfigureAwait(false);
+                else
+                    await ReplyConfirmLocalized("shop_list_item_added").ConfigureAwait(false);
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.Administrator)]
+            public async Task ShopRemove(int index)
+            {
+                index -= 1;
+                if (index < 0)
+                    return;
+                ShopEntry removed;
+                using (var uow = DbHandler.UnitOfWork())
+                {
+                    var config = uow.GuildConfigs.For(Context.Guild.Id, set => set
+                        .Include(x => x.ShopEntries)
+                        .ThenInclude(x => x.Items));
+
+                    var entries = new IndexedCollection<ShopEntry>(config.ShopEntries);
+                    removed = entries.ElementAtOrDefault(index);
+                    if (removed != null)
+                    {
+                        entries.Remove(removed);
+
+                        config.ShopEntries = entries;
+                        uow.Complete();
+                    }
+                }
+
+                if (removed == null)
+                    await ReplyErrorLocalized("shop_item_not_found").ConfigureAwait(false);
+                else
+                    await Context.Channel.EmbedAsync(EntryToEmbed(removed)
+                        .WithTitle(GetText("shop_item_rm")));
+            }
+
+            public EmbedBuilder EntryToEmbed(ShopEntry entry)
+            {
+                var embed = new EmbedBuilder().WithOkColor();
+
+                if (entry.Type == ShopEntryType.Role)
+                    return embed.AddField(efb => efb.WithName(GetText("name")).WithValue(GetText("shop_role", Format.Bold(entry.RoleName))).WithIsInline(true))
+                            .AddField(efb => efb.WithName(GetText("price")).WithValue(entry.Price.ToString()).WithIsInline(true))
+                            .AddField(efb => efb.WithName(GetText("type")).WithValue(entry.Type.ToString()).WithIsInline(true));
+                else if (entry.Type == ShopEntryType.List)
+                    return embed.AddField(efb => efb.WithName(GetText("name")).WithValue(entry.Name).WithIsInline(true))
+                            .AddField(efb => efb.WithName(GetText("price")).WithValue(entry.Price.ToString()).WithIsInline(true))
+                            .AddField(efb => efb.WithName(GetText("type")).WithValue(GetText("random_unique_item")).WithIsInline(true));
+                //else if (entry.Type == ShopEntryType.Infinite_List)
+                //    return embed.AddField(efb => efb.WithName(GetText("name")).WithValue(GetText("shop_role", Format.Bold(entry.RoleName))).WithIsInline(true))
+                //            .AddField(efb => efb.WithName(GetText("price")).WithValue(entry.Price.ToString()).WithIsInline(true))
+                //            .AddField(efb => efb.WithName(GetText("type")).WithValue(entry.Type.ToString()).WithIsInline(true));
+                else return null;
+            }
+
+            public string EntryToString(ShopEntry entry)
+            {
+                if (entry.Type == ShopEntryType.Role)
+                {
+                    return GetText("shop_role", Format.Bold(entry.RoleName));
+                }
+                else if (entry.Type == ShopEntryType.List)
+                {
+                    return GetText("unique_items_left", entry.Items.Count) + "\n" + entry.Name;
+                }
+                //else if (entry.Type == ShopEntryType.Infinite_List)
+                //{
+
+                //}
+                return "";
+            }
+        }
+    }
+}

src/NadekoBot/Resources/CommandStrings.Designer.cs

@@ -1031,6 +1031,33 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to buy.
+        /// </summary>
+        public static string buy_cmd {
+            get {
+                return ResourceManager.GetString("buy_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Buys an item from the shop on a given index. If buying items, make sure that the bot can DM you..
+        /// </summary>
+        public static string buy_desc {
+            get {
+                return ResourceManager.GetString("buy_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}buy 2`.
+        /// </summary>
+        public static string buy_usage {
+            get {
+                return ResourceManager.GetString("buy_usage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to bye.
         /// </summary>
@@ -1716,7 +1743,7 @@ namespace NadekoBot.Resources {
         }
         
         /// <summary>
-        ///    Looks up a localized string similar to Claim patreon rewards. If you&apos;re subscribed to bot owner&apos;s patreon you can user this command to claim your rewards - assuming bot owner did setup has their patreon key..
+        ///    Looks up a localized string similar to Claim patreon rewards. If you&apos;re subscribed to bot owner&apos;s patreon you can use this command to claim your rewards - assuming bot owner did setup has their patreon key..
         /// </summary>
         public static string claimpatreonrewards_desc {
             get {
@@ -2103,7 +2130,7 @@ namespace NadekoBot.Resources {
         }
         
         /// <summary>
-        ///    Looks up a localized string similar to `{0}crad 44`.
+        ///    Looks up a localized string similar to `{0}crdm 44`.
         /// </summary>
         public static string crdm_usage {
             get {
@@ -4173,7 +4200,7 @@ namespace NadekoBot.Resources {
         }
         
         /// <summary>
-        ///    Looks up a localized string similar to `{0}liqu` or `{0}liqu 3`.
+        ///    Looks up a localized string similar to Lists all quotes on the server ordered alphabetically. 15 Per page..
         /// </summary>
         public static string listquotes_desc {
             get {
@@ -4182,7 +4209,7 @@ namespace NadekoBot.Resources {
         }
         
         /// <summary>
-        ///    Looks up a localized string similar to Lists all quotes on the server ordered alphabetically. 15 Per page..
+        ///    Looks up a localized string similar to `{0}liqu` or `{0}liqu 3`.
         /// </summary>
         public static string listquotes_usage {
             get {
@@ -5297,6 +5324,33 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to parewrel.
+        /// </summary>
+        public static string patreonrewardsreload_cmd {
+            get {
+                return ResourceManager.GetString("patreonrewardsreload_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Forces the update of the list of patrons who are eligible for the reward..
+        /// </summary>
+        public static string patreonrewardsreload_desc {
+            get {
+                return ResourceManager.GetString("patreonrewardsreload_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}parewrel`.
+        /// </summary>
+        public static string patreonrewardsreload_usage {
+            get {
+                return ResourceManager.GetString("patreonrewardsreload_usage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to pause p.
         /// </summary>
@@ -7511,6 +7565,114 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to shop.
+        /// </summary>
+        public static string shop_cmd {
+            get {
+                return ResourceManager.GetString("shop_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Lists this server&apos;s administrators&apos; shop. Paginated..
+        /// </summary>
+        public static string shop_desc {
+            get {
+                return ResourceManager.GetString("shop_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}shop` or `{0}shop 2`.
+        /// </summary>
+        public static string shop_usage {
+            get {
+                return ResourceManager.GetString("shop_usage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to shopadd.
+        /// </summary>
+        public static string shopadd_cmd {
+            get {
+                return ResourceManager.GetString("shopadd_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Adds an item to the shop by specifying type price and name. Available types are role and list..
+        /// </summary>
+        public static string shopadd_desc {
+            get {
+                return ResourceManager.GetString("shopadd_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}shopadd role 1000 Rich`.
+        /// </summary>
+        public static string shopadd_usage {
+            get {
+                return ResourceManager.GetString("shopadd_usage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to shoplistadd.
+        /// </summary>
+        public static string shoplistadd_cmd {
+            get {
+                return ResourceManager.GetString("shoplistadd_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Adds an item to the list of items for sale in the shop entry given the index..
+        /// </summary>
+        public static string shoplistadd_desc {
+            get {
+                return ResourceManager.GetString("shoplistadd_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}shoplistadd 1 Uni-que-Steam-Key`.
+        /// </summary>
+        public static string shoplistadd_usage {
+            get {
+                return ResourceManager.GetString("shoplistadd_usage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to shoprem shoprm.
+        /// </summary>
+        public static string shopremove_cmd {
+            get {
+                return ResourceManager.GetString("shopremove_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Removes an item from the shop by its color..
+        /// </summary>
+        public static string shopremove_desc {
+            get {
+                return ResourceManager.GetString("shopremove_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}shoprm 1`.
+        /// </summary>
+        public static string shopremove_usage {
+            get {
+                return ResourceManager.GetString("shopremove_usage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to shorten.
         /// </summary>

src/NadekoBot/Resources/CommandStrings.resx

@@ -3379,7 +3379,7 @@
     <value>shopadd</value>
   </data>
   <data name="shopadd_desc" xml:space="preserve">
-    <value>Adds an item to the shop by specifying type price and name.</value>
+    <value>Adds an item to the shop by specifying type price and name. Available types are role and list.</value>
   </data>
   <data name="shopadd_usage" xml:space="preserve">
     <value>`{0}shopadd role 1000 Rich`</value>
@@ -3408,4 +3408,25 @@
   <data name="rolehoist_usage" xml:space="preserve">
     <value>`{0}rh Guests true` or `{0}rh "Space Wizards" true</value>
   </data>
+  <data name="buy_cmd" xml:space="preserve">
+    <value>buy</value>
+  </data>
+  <data name="buy_desc" xml:space="preserve">
+    <value>Buys an item from the shop on a given index. If buying items, make sure that the bot can DM you.</value>
+  </data>
+  <data name="buy_usage" xml:space="preserve">
+    <value>`{0}buy 2`</value>
+  </data>
+  <data name="shoplistadd_cmd" xml:space="preserve">
+    <value>shoplistadd</value>
+  </data>
+  <data name="shoplistadd_desc" xml:space="preserve">
+    <value>Adds an item to the list of items for sale in the shop entry given the index.</value>
+  </data>
+  <data name="shoplistadd_usage" xml:space="preserve">
+    <value>`{0}shoplistadd 1 Uni-que-Steam-Key`</value>
+  </data>
+  <data name="shopremove_usage" xml:space="preserve">
+    <value>`{0}shoprm 1`</value>
+  </data>
 </root>

src/NadekoBot/Resources/ResponseStrings.Designer.cs

@@ -2719,6 +2719,15 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Item.
+        /// </summary>
+        public static string gambling_item {
+            get {
+                return ResourceManager.GetString("gambling_item", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to Leaderboard.
         /// </summary>
@@ -2764,6 +2773,15 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Name.
+        /// </summary>
+        public static string gambling_name {
+            get {
+                return ResourceManager.GetString("gambling_name", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to No more cards in the deck..
         /// </summary>
@@ -2800,6 +2818,15 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Out of stock..
+        /// </summary>
+        public static string gambling_out_of_stock {
+            get {
+                return ResourceManager.GetString("gambling_out_of_stock", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to page {0}.
         /// </summary>
@@ -2845,6 +2872,15 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Random unique item..
+        /// </summary>
+        public static string gambling_random_unique_item {
+            get {
+                return ResourceManager.GetString("gambling_random_unique_item", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to You rolled {0}..
         /// </summary>
@@ -2863,6 +2899,141 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Shop.
+        /// </summary>
+        public static string gambling_shop {
+            get {
+                return ResourceManager.GetString("gambling_shop", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Error DMing item. You&apos;ve been refunded..
+        /// </summary>
+        public static string gambling_shop_buy_error {
+            get {
+                return ResourceManager.GetString("gambling_shop_buy_error", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Shop item added.
+        /// </summary>
+        public static string gambling_shop_item_add {
+            get {
+                return ResourceManager.GetString("gambling_shop_item_add", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to No item on that index found..
+        /// </summary>
+        public static string gambling_shop_item_not_found {
+            get {
+                return ResourceManager.GetString("gambling_shop_item_not_found", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Item purchase successful..
+        /// </summary>
+        public static string gambling_shop_item_purchase {
+            get {
+                return ResourceManager.GetString("gambling_shop_item_purchase", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Shop item removed.
+        /// </summary>
+        public static string gambling_shop_item_rm {
+            get {
+                return ResourceManager.GetString("gambling_shop_item_rm", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to That shop entry does not support item adding..
+        /// </summary>
+        public static string gambling_shop_item_wrong_type {
+            get {
+                return ResourceManager.GetString("gambling_shop_item_wrong_type", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Item successfully added..
+        /// </summary>
+        public static string gambling_shop_list_item_added {
+            get {
+                return ResourceManager.GetString("gambling_shop_list_item_added", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to That item is already added..
+        /// </summary>
+        public static string gambling_shop_list_item_not_unique {
+            get {
+                return ResourceManager.GetString("gambling_shop_list_item_not_unique", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to No shop items found on this page..
+        /// </summary>
+        public static string gambling_shop_none {
+            get {
+                return ResourceManager.GetString("gambling_shop_none", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Purchase on {0} server.
+        /// </summary>
+        public static string gambling_shop_purchase {
+            get {
+                return ResourceManager.GetString("gambling_shop_purchase", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to You will get {0} role..
+        /// </summary>
+        public static string gambling_shop_role {
+            get {
+                return ResourceManager.GetString("gambling_shop_role", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Role which is being sold no longer exists..
+        /// </summary>
+        public static string gambling_shop_role_not_found {
+            get {
+                return ResourceManager.GetString("gambling_shop_role_not_found", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to You&apos;ve successfully purchased {0} role..
+        /// </summary>
+        public static string gambling_shop_role_purchase {
+            get {
+                return ResourceManager.GetString("gambling_shop_role_purchase", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Error assigning role. Your purchase has been refunded..
+        /// </summary>
+        public static string gambling_shop_role_purchase_error {
+            get {
+                return ResourceManager.GetString("gambling_shop_role_purchase_error", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to Bet.
         /// </summary>
@@ -2981,6 +3152,24 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Type.
+        /// </summary>
+        public static string gambling_type {
+            get {
+                return ResourceManager.GetString("gambling_type", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to {0} unique items left..
+        /// </summary>
+        public static string gambling_unique_items_left {
+            get {
+                return ResourceManager.GetString("gambling_unique_items_left", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to your affinity is already set to that waifu or you&apos;re trying to remove your affinity while not having one..
         /// </summary>
@@ -6124,6 +6313,15 @@ namespace NadekoBot.Resources {
             }
         }
         
+        /// <summary>
+        ///    Looks up a localized string similar to Next update in {0}.
+        /// </summary>
+        public static string utility_clpa_next_update {
+            get {
+                return ResourceManager.GetString("utility_clpa_next_update", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///    Looks up a localized string similar to You&apos;ve received {0} Thanks for supporting the project!.
         /// </summary>

src/NadekoBot/Resources/ResponseStrings.resx

@@ -2409,4 +2409,71 @@ Owner ID: {2}</value>
   <data name="administration_rh" xml:space="preserve">
     <value>Set the display of guild role {0} to {1}.</value>
   </data>
+  <data name="gambling_name" xml:space="preserve">
+    <value>Name</value>
+  </data>
+  <data name="gambling_shop" xml:space="preserve">
+    <value>Shop</value>
+  </data>
+  <data name="gambling_shop_item_add" xml:space="preserve">
+    <value>Shop item added</value>
+  </data>
+  <data name="gambling_shop_none" xml:space="preserve">
+    <value>No shop items found on this page.</value>
+  </data>
+  <data name="gambling_shop_role" xml:space="preserve">
+    <value>You will get {0} role.</value>
+  </data>
+  <data name="gambling_type" xml:space="preserve">
+    <value>Type</value>
+  </data>
+  <data name="utility_clpa_next_update" xml:space="preserve">
+    <value>Next update in {0}</value>
+    <comment>Next update in 05:30</comment>
+  </data>
+  <data name="gambling_item" xml:space="preserve">
+    <value>Item</value>
+  </data>
+  <data name="gambling_out_of_stock" xml:space="preserve">
+    <value>Out of stock.</value>
+  </data>
+  <data name="gambling_random_unique_item" xml:space="preserve">
+    <value>Random unique item.</value>
+  </data>
+  <data name="gambling_shop_buy_error" xml:space="preserve">
+    <value>Error DMing item. You've been refunded.</value>
+  </data>
+  <data name="gambling_shop_item_not_found" xml:space="preserve">
+    <value>No item on that index found.</value>
+  </data>
+  <data name="gambling_shop_item_purchase" xml:space="preserve">
+    <value>Item purchase successful.</value>
+  </data>
+  <data name="gambling_shop_item_rm" xml:space="preserve">
+    <value>Shop item removed</value>
+  </data>
+  <data name="gambling_shop_item_wrong_type" xml:space="preserve">
+    <value>That shop entry does not support item adding.</value>
+  </data>
+  <data name="gambling_shop_list_item_added" xml:space="preserve">
+    <value>Item successfully added.</value>
+  </data>
+  <data name="gambling_shop_list_item_not_unique" xml:space="preserve">
+    <value>That item is already added.</value>
+  </data>
+  <data name="gambling_shop_purchase" xml:space="preserve">
+    <value>Purchase on {0} server</value>
+  </data>
+  <data name="gambling_shop_role_not_found" xml:space="preserve">
+    <value>Role which is being sold no longer exists.</value>
+  </data>
+  <data name="gambling_shop_role_purchase" xml:space="preserve">
+    <value>You've successfully purchased {0} role.</value>
+  </data>
+  <data name="gambling_shop_role_purchase_error" xml:space="preserve">
+    <value>Error assigning role. Your purchase has been refunded.</value>
+  </data>
+  <data name="gambling_unique_items_left" xml:space="preserve">
+    <value>{0} unique items left.</value>
+  </data>
 </root>

src/NadekoBot/Services/Database/Models/GuildConfig.cs

@@ -76,6 +76,8 @@ namespace NadekoBot.Services.Database.Models
         public HashSet<SlowmodeIgnoredUser> SlowmodeIgnoredUsers { get; set; }
         public HashSet<SlowmodeIgnoredRole> SlowmodeIgnoredRoles { get; set; }
 
+        public List<ShopEntry> ShopEntries { get; set; }
+
         //public List<ProtectionIgnoredChannel> ProtectionIgnoredChannels { get; set; } = new List<ProtectionIgnoredChannel>();
     }
 

src/NadekoBot/Services/Database/Models/ShopEntry.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+
+namespace NadekoBot.Services.Database.Models
+{
+    public enum ShopEntryType
+    {
+        Role,
+        List,
+        //Infinite_List,
+    }
+
+    public class ShopEntry : DbEntity, IIndexed
+    {
+        public int Index { get; set; }
+        public int Price { get; set; }
+        public string Name { get; set; }
+        public ulong AuthorId { get; set; }
+
+        public ShopEntryType Type { get; set; }
+
+        //role
+        public string RoleName { get; set; }
+        public ulong RoleId { get; set; }
+
+        //list
+        public HashSet<ShopEntryItem> Items { get; set; } = new HashSet<ShopEntryItem>();
+    }
+
+    public class ShopEntryItem : DbEntity
+    {
+        public string Text { get; set; }
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null || GetType() != obj.GetType())
+            {
+                return false;
+            }
+            return ((ShopEntryItem)obj).Text == Text;
+        }
+
+        public override int GetHashCode() =>
+            Text.GetHashCode();
+    }
+}