using System.Collections.Generic;
using Microsoft.OpenApi.Any;
using Microsoft.OpenApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;
using xCommons.Configurations;
using xCommons.Constants;
using xCommons.Extensions;

namespace xCommons.Filters {
    /// <summary>
    /// RequireXPowered for NGSwag 
    /// </summary>
    public partial class RequireXPoweredOperationFilter : IOperationFilter {
        private readonly XAppConfiguration config;

        public RequireXPoweredOperationFilter (XAppConfiguration config) {
            this.config = config;
        }

        public void Apply (OpenApiOperation operation, OperationFilterContext context) {
            //
            if (operation.Parameters.IsNull ()) {
                operation.Parameters = new List<OpenApiParameter> ();
            }

            //
            operation.Parameters.Add (new OpenApiParameter {
                In = ParameterLocation.Header,
                    Name = XAuthorization.XPoweredBy,
                    Description = "a Basic Authorization Filter",
                    Required = false,
                    Schema = new OpenApiSchema {
                        Type = "String",
                            Default = new OpenApiString (config.XPoweredValue)
                    }
            });
        }
    }
}