Add support for user-installable applications

Backend/Remora.Discord.API.Abstractions/API/Objects/Applications/ApplicationIntegrationType.cs

@@ -0,0 +1,42 @@
+//
+//  ApplicationIntegrationType.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using JetBrains.Annotations;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// Represents valid locations for users to install application integrations.
+/// </summary>
+[PublicAPI]
+public enum ApplicationIntegrationType
+{
+    /// <summary>
+    /// Specifies that the integration can be installed on a guild.
+    /// </summary>
+    GuildInstallable = 0,
+
+    /// <summary>
+    /// Specifies that the integration can be installed on a user.
+    /// </summary>
+    UserInstallable = 1,
+}

Backend/Remora.Discord.API.Abstractions/API/Objects/Applications/IApplication.cs

@@ -165,6 +165,11 @@ public interface IApplication : IPartialApplication
     /// </summary>
     new Optional<Uri> CustomInstallUrl { get; }
 
+    /// <summary>
+    /// Gets the application's integration type configurations.
+    /// </summary>
+    new IReadOnlyDictionary<ApplicationIntegrationType, IApplicationIntegrationTypeConfig?> IntegrationTypesConfig { get; }
+
     /// <inheritdoc/>
     Optional<Snowflake> IPartialApplication.ID => this.ID;
 
@@ -242,4 +247,7 @@ public interface IApplication : IPartialApplication
 
     /// <inheritdoc/>
     Optional<Uri> IPartialApplication.CustomInstallUrl => this.CustomInstallUrl;
+
+    /// <inheritdoc/>
+    Optional<IReadOnlyDictionary<ApplicationIntegrationType, IApplicationIntegrationTypeConfig?>> IPartialApplication.IntegrationTypesConfig => new(this.IntegrationTypesConfig);
 }

Backend/Remora.Discord.API.Abstractions/API/Objects/Applications/IApplicationIntegrationTypeConfig.cs

@@ -0,0 +1,37 @@
+//
+//  IApplicationIntegrationTypeConfig.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using JetBrains.Annotations;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// The integration type configuration for an application.
+/// </summary>
+[PublicAPI]
+public interface IApplicationIntegrationTypeConfig
+{
+    /// <summary>
+    /// Gets the OAuth2 install parameters for the integration type.
+    /// </summary>
+    public IApplicationOAuth2InstallParams OAuth2InstallParams { get; }
+}

Backend/Remora.Discord.API.Abstractions/API/Objects/Applications/IApplicationOAuth2InstallParams.cs

@@ -0,0 +1,46 @@
+//
+//  IApplicationOAuth2InstallParams.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using System.Collections.Generic;
+using JetBrains.Annotations;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// Represents the OAuth2 install parameters for an application.
+/// </summary>
+[PublicAPI]
+public interface IApplicationOAuth2InstallParams
+{
+    /// <summary>
+    /// Gets the permissions required for the application.
+    /// </summary>
+    /// <remarks>
+    /// Only applicable if <see cref="IApplicationOAuth2InstallParams.Scopes"/> includes `bot`.
+    /// </remarks>
+    IDiscordPermissionSet Permissions { get; }
+
+    /// <summary>
+    /// Gets the list of OAuth2 scopes required for the application.
+    /// </summary>
+    IReadOnlyList<string> Scopes { get; }
+}

Backend/Remora.Discord.API.Abstractions/API/Objects/Applications/IPartialApplication.cs

@@ -110,4 +110,7 @@ public interface IPartialApplication
 
     /// <inheritdoc cref="IApplication.CustomInstallUrl" />
     Optional<Uri> CustomInstallUrl { get; }
+
+    /// <inheritdoc cref="IApplication.IntegrationTypesConfig" />
+    Optional<IReadOnlyDictionary<ApplicationIntegrationType, IApplicationIntegrationTypeConfig?>> IntegrationTypesConfig { get; }
 }

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/ApplicationCommands/IApplicationCommand.cs

@@ -114,4 +114,14 @@ public interface IApplicationCommand
     /// Gets a value indicating whether this command is age-restricted.
     /// </summary>
     Optional<bool> IsNsfw { get; }
+
+    /// <summary>
+    /// Gets a value indicating the contexts in which this command can be installed.
+    /// </summary>
+    Optional<IReadOnlyList<ApplicationIntegrationType>> IntegrationTypes { get; }
+
+    /// <summary>
+    /// Gets a value indicating the contexts in which this command can be invoked.
+    /// </summary>
+    Optional<IReadOnlyList<InteractionContextType>> Contexts { get; }
 }

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/ApplicationCommands/IBulkApplicationCommandData.cs

@@ -61,4 +61,10 @@ public interface IBulkApplicationCommandData
 
     /// <inheritdoc cref="IApplicationCommand.IsNsfw"/>
     Optional<bool> IsNsfw { get; }
+
+    /// <inheritdoc cref="IApplicationCommand.IntegrationTypes"/>
+    Optional<IReadOnlyList<ApplicationIntegrationType>> IntegrationTypes { get; }
+
+    /// <inheritdoc cref="IApplicationCommand.Contexts"/>
+    Optional<IReadOnlyList<InteractionContextType>> Contexts { get; }
 }

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/IApplicationCommandInteractionMetadata.cs

@@ -0,0 +1,37 @@
+//
+//  IApplicationCommandInteractionMetadata.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using JetBrains.Annotations;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// Represents metadata related to application commands.
+/// </summary>
+[PublicAPI]
+public interface IApplicationCommandInteractionMetadata : IMessageInteractionMetadata
+{
+    /// <summary>
+    /// Gets the name of the command.
+    /// </summary>
+    string Name { get; }
+}

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/IInteraction.cs

@@ -103,7 +103,7 @@ public interface IInteraction
     /// <summary>
     /// Gets the computed permissions for the application in the context of the interaction's execution.
     /// </summary>
-    Optional<IDiscordPermissionSet> AppPermissions { get; }
+    IDiscordPermissionSet AppPermissions { get; }
 
     /// <summary>
     /// Gets the locale of the invoking user.
@@ -122,4 +122,23 @@ public interface IInteraction
     /// Gets, for monetized apps, any entitlements for the invoking user.
     /// </summary>
     IReadOnlyList<IEntitlement> Entitlements { get; }
+
+    /// <summary>
+    /// Gets the context of the interaction.
+    /// </summary>
+    Optional<InteractionContextType> Context { get; }
+
+    /// <summary>
+    /// Gets the integrations that authorized the interaction.
+    /// </summary>
+    /// <remarks>
+    /// This is a mapping of the integration type to the ID of its resource.
+    /// <para>
+    /// The dictionary contains the following, given the circumstances: <br/>
+    /// - If the integration is installed to a user, a key of <see cref="ApplicationIntegrationType.UserInstallable"/> and the value is the user ID. <br/>
+    /// - If the integration is installed to a guild, a key of <see cref="ApplicationIntegrationType.GuildInstallable"/> and the value is the guild ID.
+    /// If the interaction is sent outside the context of a guild, the value is always zero.<br/>
+    /// </para>
+    /// </remarks>
+    Optional<IReadOnlyDictionary<ApplicationIntegrationType, Snowflake>> AuthorizingIntegrationOwners { get; }
 }

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/IMessageComponentInteractionMetadata.cs

@@ -0,0 +1,38 @@
+//
+//  IMessageComponentInteractionMetadata.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using JetBrains.Annotations;
+using Remora.Rest.Core;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// Represents metadata related to a message component interaction.
+/// </summary>
+[PublicAPI]
+public interface IMessageComponentInteractionMetadata : IMessageInteractionMetadata
+{
+    /// <summary>
+    /// Gets the ID of the message that was interacted with.
+    /// </summary>
+    Snowflake InteractedMessageID { get; }
+}

Backend/Remora.Discord.API.Abstractions/API/Objects/Interactions/IMessageInteractionMetadata.cs

@@ -0,0 +1,68 @@
+//
+//  IMessageInteractionMetadata.cs
+//
+//  Author:
+//       Jarl Gullberg <[email protected]>
+//
+//  Copyright (c) Jarl Gullberg
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using System.Collections.Generic;
+using JetBrains.Annotations;
+using Remora.Rest.Core;
+
+namespace Remora.Discord.API.Abstractions.Objects;
+
+/// <summary>
+/// Represents the metadata of an application command interaction.
+/// </summary>
+[PublicAPI]
+public interface IMessageInteractionMetadata
+{
+    /// <summary>
+    /// Gets the ID of the interaction.
+    /// </summary>
+    Snowflake ID { get; }
+
+    /// <summary>
+    /// Gets the ID of the user who triggered the interaction.
+    /// </summary>
+    Snowflake UserID { get; }
+
+    /// <summary>
+    /// Gets the type of the interaction.
+    /// </summary>
+    InteractionType Type { get; }
+
+    /// <summary>
+    /// Gets the ID of the original response message. Only applicable to followup messages.
+    /// </summary>
+    Optional<Snowflake> OriginalResponseMessageID { get; }
+
+    /// <summary>
+    /// Gets the integrations that authorized the interaction.
+    /// </summary>
+    /// <remarks>
+    /// This is a mapping of the integration type to the ID of its resource.
+    /// <para>
+    /// The dictionary contains the following, given the circumstances: <br/>
+    /// - If the integration is installed to a user, a key of <see cref="ApplicationIntegrationType.UserInstallable"/> and the value is the user ID. <br/>
+    /// - If the integration is installed to a guild, a key of <see cref="ApplicationIntegrationType.GuildInstallable"/> and the value is the guild ID.
+    /// If the interaction is sent outside the context of a guild, the value is always zero.<br/>
+    /// </para>
+    /// </remarks>
+    IReadOnlyDictionary<ApplicationIntegrationType, Snowflake> AuthorizingIntegrationOwners { get; }
+}