// --------------------------------------------------------------------------------------------------------------------
// <copyright file="Examples.cs" company="OxyPlot">
// Copyright (c) 2014 OxyPlot contributors
// </copyright>
// --------------------------------------------------------------------------------------------------------------------

namespace ExampleLibrary
{
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;

 /// <summary>
 /// Enumerates all examples in the assembly.
 /// </summary>
 public static class Examples
 {
 /// <summary>
 /// Gets the list of examples.
 /// </summary>
 /// <returns>The list of examples.</returns>
 public static List<ExampleInfo> GetList()
 {
 var list = new List<ExampleInfo>();
 var assemblyTypes = typeof(Examples).GetTypeInfo().Assembly.DefinedTypes;

 foreach (var type in assemblyTypes)
 {
 var examplesAttribute = type.GetCustomAttributes<ExamplesAttribute>().FirstOrDefault();
 if (examplesAttribute == null)
 {
 continue;
 }

 var examplesTags = type.GetCustomAttributes<TagsAttribute>().FirstOrDefault() ?? new TagsAttribute();

 var types = new List<Type>();
 var baseType = type;
 while (baseType != null)
 {
 types.Add(baseType.AsType());
 baseType = baseType.BaseType != null ? baseType.BaseType.GetTypeInfo() : null;
 }

 foreach (var t in types)
 {
 var methods = t.GetRuntimeMethods();

 foreach (var method in methods)
 {
 try
 {
 var exampleAttribute = method.GetCustomAttributes<ExampleAttribute>().FirstOrDefault();
 if (exampleAttribute != null)
 {
 var exampleTags = method.GetCustomAttributes<TagsAttribute>().FirstOrDefault() ?? new TagsAttribute();
 var tags = new List<string>(examplesTags.Tags);
 tags.AddRange(exampleTags.Tags);
 list.Add(
 new ExampleInfo(
 examplesAttribute.Category,
 exampleAttribute.Title,
 tags.ToArray(),
 method));
 }
 }
 catch (Exception)
 {
 }
 }
 }
 }

 return list;
 }
 }
}