// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Twitter;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Options;
 
namespace Microsoft.Extensions.DependencyInjection;
 
/// <summary>
/// Extension methods to configure Twitter OAuth authentication.
/// </summary>
public static class TwitterExtensions
{
    /// <summary>
    /// Adds Twitter OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
    /// The default scheme is specified by <see cref="TwitterDefaults.AuthenticationScheme"/>.
    /// <para>
    /// Twitter authentication allows application users to sign in with their Twitter account.
    /// </para>
    /// </summary>
    /// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
    /// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
    public static AuthenticationBuilder AddTwitter(this AuthenticationBuilder builder)
        => builder.AddTwitter(TwitterDefaults.AuthenticationScheme, _ => { });
 
    /// <summary>
    /// Adds Twitter OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
    /// The default scheme is specified by <see cref="TwitterDefaults.AuthenticationScheme"/>.
    /// <para>
    /// Twitter authentication allows application users to sign in with their Twitter account.
    /// </para>
    /// </summary>
    /// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
    /// <param name="configureOptions">A delegate to configure <see cref="TwitterOptions"/>.</param>
    /// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
    public static AuthenticationBuilder AddTwitter(this AuthenticationBuilder builder, Action<TwitterOptions> configureOptions)
        => builder.AddTwitter(TwitterDefaults.AuthenticationScheme, configureOptions);
 
    /// <summary>
    /// Adds Twitter OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
    /// The default scheme is specified by <see cref="TwitterDefaults.AuthenticationScheme"/>.
    /// <para>
    /// Twitter authentication allows application users to sign in with their Twitter account.
    /// </para>
    /// </summary>
    /// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
    /// <param name="authenticationScheme">The authentication scheme.</param>
    /// <param name="configureOptions">A delegate to configure <see cref="TwitterOptions"/>.</param>
    /// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
    public static AuthenticationBuilder AddTwitter(this AuthenticationBuilder builder, string authenticationScheme, Action<TwitterOptions> configureOptions)
        => builder.AddTwitter(authenticationScheme, TwitterDefaults.DisplayName, configureOptions);
 
    /// <summary>
    /// Adds Twitter OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
    /// The default scheme is specified by <see cref="TwitterDefaults.AuthenticationScheme"/>.
    /// <para>
    /// Twitter authentication allows application users to sign in with their Twitter account.
    /// </para>
    /// </summary>
    /// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
    /// <param name="authenticationScheme">The authentication scheme.</param>
    /// <param name="displayName">A display name for the authentication handler.</param>
    /// <param name="configureOptions">A delegate to configure <see cref="TwitterOptions"/>.</param>
    /// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
    public static AuthenticationBuilder AddTwitter(this AuthenticationBuilder builder, string authenticationScheme, string displayName, Action<TwitterOptions> configureOptions)
    {
        builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton<IPostConfigureOptions<TwitterOptions>, TwitterPostConfigureOptions>());
        return builder.AddRemoteScheme<TwitterOptions, TwitterHandler>(authenticationScheme, displayName, configureOptions);
    }
}