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

namespace CodeBuilder.Core
{
 /// <summary>
 /// 变量辅助类。
 /// </summary>
 public class ProfileUnity
 {
 /// <summary>
 /// 载入变量对象。
 /// </summary>
 /// <param name="hosting">开发环境。</param>
 /// <param name="template">模板定义。</param>
 /// <returns></returns>
 public static Profile LoadProfile(IDevHosting hosting, TemplateDefinition template)
 {
 string fileName;
 var profile = ProfileExtensionManager.Build(template);
 if (!string.IsNullOrEmpty(template?.TId))
 {
 fileName = Path.Combine(hosting.WorkPath, "profiles", "template." + template.TId + ".profile");
 if (File.Exists(fileName))
 {
 return InitializerUnity.Initialize(hosting, FillByFile(profile, fileName), template);
 }
 }

 fileName = Path.Combine(hosting.WorkPath, "config", "profile.cfg");
 return InitializerUnity.Initialize(hosting, FillByFile(profile, fileName), template);
 }

 /// <summary>
 /// 载入变量对象。
 /// </summary>
 /// <param name="hosting">开发环境。</param>
 /// <param name="template">模板定义。</param>
 /// <param name="profileName">变量存储文件。</param>
 /// <returns></returns>
 public static Profile LoadProfile(IDevHosting hosting, TemplateDefinition template, string profileName)
 {
 if (File.Exists(profileName))
 {
 var profile = ProfileExtensionManager.Build(template);
 return InitializerUnity.Initialize(hosting, FillByFile(profile, profileName), template);
 }

 return LoadProfile(hosting, template);
 }

 /// <summary>
 /// 将变量保存到本地。
 /// </summary>
 /// <param name="hosting">开发环境。</param>
 /// <param name="templateUId">模板UID。</param>
 /// <param name="profile">变量。</param>
 public static void SaveFile(IDevHosting hosting, string templateUId, Profile profile)
 {
 string fileName;
 if (string.IsNullOrEmpty(templateUId))
 {
 fileName = Path.Combine(hosting.WorkPath, "config", "profile.cfg");
 }
 else
 {
 var path = Path.Combine(hosting.WorkPath, "profiles");
 if (!Directory.Exists(path))
 {
 Directory.CreateDirectory(path);
 }

 fileName = Path.Combine(path, "template." + templateUId + ".profile");
 }

 SaveAsFile(profile, fileName);
 }

 /// <summary>
 /// 使用本地文件来填充变量。
 /// </summary>
 /// <param name="profile">变量。</param>
 /// <param name="filePath">文件路径。</param>
 /// <returns></returns>
 public static Profile FillByFile(Profile profile, string filePath)
 {
 var profileType = profile.GetType();
 var content = File.ReadAllText(filePath);
 var json = new JsonSerializer();
 var dyobj = (IDictionary<string, object>)json.Deserialize<dynamic>(content);

 if (profile is IProfileInfo info)
 {
 info.FileName = filePath;
 }

 foreach (var kvp in dyobj)
 {
 var p = profileType.GetProperty(kvp.Key);
 if (p != null && p.CanWrite)
 {
 p.SetValue(profile, kvp.Value, null);
 }
 }

 return profile;
 }

 /// <summary>
 /// 将变量保存到文件。
 /// </summary>
 /// <param name="profile">变量。</param>
 /// <param name="filePath">文件路径。</param>
 public static void SaveAsFile(Profile profile, string filePath)
 {
 var option = new JsonSerializeOption { Indent = true };

 var members = profile.GetType().GetProperties().Where(s => s.IsDefined<UnPersistentlyAttribute>()).OfType<MemberInfo>().ToList();
 option.ExclusiveMembers = members;
 var json = new JsonSerializer(option);
 var content = json.Serialize(profile);
 File.WriteAllText(filePath, content, Encoding.UTF8);
 }

 /// <summary>
 /// 验证变量中的属性必填项。
 /// </summary>
 /// <param name="profile">变量。</param>
 /// <returns></returns>
 public static string ValidateProfile(Profile profile)
 {
 var sb = new StringBuilder();
 var properties = profile.GetType().GetProperties().Where(s => s.IsDefined<RequiredCheckAttribute>()).ToList();
 foreach (var property in properties)
 {
 var value = property.GetValue(profile);
 if (value == null)
 {
 sb.AppendLine(string.Format("{0} 为空", property.Name));
 }
 }

 return sb.ToString();
 }
 }
}