// -----------------------------------------------------------------------
// <copyright company="Fireasy"
// email="faib920@126.com"
// qq="55570729">
// (c) Copyright Fireasy. All rights reserved.
// </copyright>
// -----------------------------------------------------------------------
using CodeBuilder.Core.Source;
using Fireasy.Common.Extensions;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;

namespace CodeBuilder.Core
{
 /// <summary>
 /// 验证辅助类。
 /// </summary>
 public class ValidationUnity
 {
 /// <summary>
 /// 验证变量及所选定的数据表,使用 <see cref="RequiredCheckAttribute"/> 标记的属性为必填项。
 /// </summary>
 /// <param name="profile"></param>
 /// <param name="tables"></param>
 /// <returns></returns>
 public static string Validate(Profile profile, IEnumerable<Table> tables)
 {
 PropertyInfo[] tableProperties = null;
 PropertyInfo[] columnProperties = null;
 var sb = new StringBuilder();

 foreach (var p in profile.GetType().GetProperties().Where(s => s.IsDefined<RequiredCheckAttribute>()))
 {
 var value = p.GetValue(profile);
 if (value == null || (value is string @string && string.IsNullOrEmpty(@string)))
 {
 sb.AppendLine(string.Format("Profile 的 {0} 不能为空,请在【变量】窗口中设置;", p.Name));
 }
 }

 foreach (var table in tables)
 {
 if (tableProperties == null)
 {
 tableProperties = table.GetType().GetProperties().Where(s => s.IsDefined<RequiredCheckAttribute>()).ToArray();
 }

 foreach (var p in tableProperties)
 {
 var value = p.GetValue(table);
 if (value == null || (value is string @string && string.IsNullOrEmpty(@string)))
 {
 sb.AppendLine(string.Format("表 {0} 的 {1} 不能为空,请在【属性】窗口中设置;", table.Name, p.Name));
 }
 }

 foreach (var column in table.Columns)
 {
 if (columnProperties == null)
 {
 columnProperties = column.GetType().GetProperties().Where(s => s.IsDefined<RequiredCheckAttribute>()).ToArray();
 }

 foreach (var c in columnProperties)
 {
 var value = c.GetValue(column);
 if (value == null || (value is string @string && string.IsNullOrEmpty(@string)))
 {
 sb.AppendLine(string.Format("字段 {0}.{1} 的 {2} 不能为空,请在【属性】窗口中设置;", table.Name, column.Name, c.Name));
 }
 }
 }
 }

 if (sb.Length > 0)
 {
 sb.Insert(0, "必要字段校验结果:\n");
 sb.Remove(sb.Length - 3, 3);
 sb.Append("。");
 }

 return sb.ToString();
 }
 }
}