using Microsoft.OpenApi.Any;
using Microsoft.OpenApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.Core
{
    public class EnumSchemaFilter : ISchemaFilter
    {
        public void Apply(OpenApiSchema schema, SchemaFilterContext context)
        {
            if (context.Type.IsEnum)
            {
                // 枚举类型的描述（来自枚举本身的注释）
                schema.Description ??= GetEnumDescription(context.Type);
            }
        }

        // 获取枚举类型的注释
        private string GetEnumDescription(Type enumType)
        {
            var xmlDoc = XmlDocUtils.GetXmlDocAsync().Result;
            var member = XmlDocUtils.GetXmlDocMemberAsync(enumType, xmlDoc).Result;
            var description = member?.Summary ?? "";
            foreach (var enumValue in Enum.GetValues(enumType))
            {
                var enumMember = enumType.GetMember(enumValue.ToString()).First();
                var enumXmlDocMember = XmlDocUtils.GetXmlDocMemberAsync(enumMember, xmlDoc).Result;
                description += $"{enumValue}-{enumXmlDocMember?.Summary} ";
            }
            return description;
        }
    }
}