using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

/// <summary>
/// 属性校验输入
/// </summary>
public abstract class Input : IInput
{
    /// <summary>
    /// 验证当前模型
    /// </summary>
    /// <returns></returns>
    internal IEnumerable<ValidationResult> Validation()
    {
        List<ValidationResult> validationResults = new List<ValidationResult>();
        ValidationContext validationContext = new ValidationContext(this);;
        Validator.TryValidateObject(this, validationContext, validationResults,true);
        List<string> errorMsg = new List<string>();
        Verification(errorMsg);
        if (errorMsg.Any()) 
            validationResults.AddRange(errorMsg.Select(e => new ValidationResult(e)));
        return validationResults;
    }

    /// <summary>
    /// 模型验证
    /// </summary>
    /// <param name="errorMsg"></param>
    public virtual void Verification(List<string> errorMsg) { }
}