using Microsoft.AspNetCore.Mvc;
using System;
using System.Linq;
using System.Text;
using HealthMonitor.Util.Entities.Base;

namespace HealthMonitor.WebApi.Controllers.Base
{
	public class DefaultControllerBase<T> : ControllerBase where T: EntityBase
	{
		/// <summary>
		/// 验证参数有效性
		/// </summary>
		/// <param name="model">可选，若提供则在参数有效性不通过时，会给参数赋默认值</param>
		protected void AssertModelStateIsValid(T? model = null)
		{
			if (!ModelState.IsValid)
			{
				var message = new StringBuilder();

				var entityType = typeof(T);
				if (entityType.IsSubclassOf(typeof(HealthMonitorEntityBase))) message.Append("HealthMonitor");
				//else if (entityType.IsSubclassOf(typeof(TelpoCommonEntityBase))) message.Append("TelpoCommon");
				//else if (entityType.IsSubclassOf(typeof(GpsLocationHistoryEntityBase))) message.Append("GpsLocationHistory");
				message.Append($" [{entityType.FullName}], Error Message: ");

				foreach (var kv in ModelState)
				{
					if (kv.Value.ValidationState == Microsoft.AspNetCore.Mvc.ModelBinding.ModelValidationState.Invalid)
					{
						message.Append(string.Join(", ", kv.Value.Errors.Select(e => e.ErrorMessage)));
					}
				}

				if (model != null) model.AssertValidate();
				else throw new ArgumentException(message.ToString());
			}
		}
	}
}