using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Estsh.Client.Common.ServiceUtil
{
    public class ServiceProviderHelper
    {
        /// <summary>
        /// 全局服务提供者
        /// </summary>
        public static IServiceProvider ServiceProvider { get; private set; } = null!;

        /// <summary>
        /// 初始化构建ServiceProvider对象
        /// </summary>
        /// <param name="serviceProvider"></param>
        /// <exception cref="ArgumentNullException"></exception>
        public static void InitServiceProvider(ServiceProvider serviceProvider)
        {
            ArgumentNullException.ThrowIfNull(serviceProvider, nameof(serviceProvider));

            ServiceProvider = serviceProvider;
        }

        /// <summary>
        /// 获取Form服务
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        /// <exception cref="ArgumentException"></exception>
        public static Form GetFormService(Type type)
        {
            var service = ServiceProvider.GetRequiredService(type);
            if (service is Form fService)
            {
                return fService;
            }
            else
            {
                throw new ArgumentException($"{type.FullName} is not a Form");
            }
        }

        /// <summary>
        /// 获取Form服务
        /// </summary>
        /// <returns></returns>
        public static T GetRequiredService<T>() where T : class
        {
            return ServiceProvider.GetRequiredService<T>();
        }

        /// <summary>
        /// 获取服务
        /// </summary>
        /// <returns></returns>
        public static T GetService<T>() where T : class
        {
            return ServiceProvider.GetService<T>();
        }
    }
}