using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;

namespace Fengling.RiskControl.Configuration;

public static class RiskControlClientExtensions
{
    public static IServiceCollection AddRiskControlClient(
        this IServiceCollection services,
        Action<RiskControlClientOptions> configureOptions)
    {
        services.Configure(configureOptions);
        services.AddSingleton<IValidateOptions<RiskControlClientOptions>, RiskControlClientOptionsValidator>();
        services.AddSingleton<RiskControlClientOptions>(sp =>
            sp.GetRequiredService<IOptions<RiskControlClientOptions>>().Value);
        return services;
    }
}

public class RiskControlClientOptionsValidator : IValidateOptions<RiskControlClientOptions>
{
    public ValidateOptionsResult Validate(string? name, RiskControlClientOptions options)
    {
        if (string.IsNullOrEmpty(options.Redis.ConnectionString))
        {
            return ValidateOptionsResult.Fail("Redis.ConnectionString is required");
        }
        return ValidateOptionsResult.Success;
    }
}