From e57f1fb172483e8ac194c56e82829e5491b7a256 Mon Sep 17 00:00:00 2001
From: Trond Schertel <t.schertel@t-m-g.de>
Date: Wed, 10 Jun 2020 16:15:53 +0200
Subject: [PATCH] Quiz angefangen

---
 .../Controllers/QuizController.cs             | 78 +++++++++++++++++++
 MultipleChoiceTrainer/Models/QuizViewModel.cs | 25 ++++++
 .../Views/Home/_homeLogInPartial.cshtml       |  4 +-
 MultipleChoiceTrainer/Views/Quiz/Quiz.cshtml  | 25 ++++++
 4 files changed, 130 insertions(+), 2 deletions(-)
 create mode 100644 MultipleChoiceTrainer/Controllers/QuizController.cs
 create mode 100644 MultipleChoiceTrainer/Models/QuizViewModel.cs
 create mode 100644 MultipleChoiceTrainer/Views/Quiz/Quiz.cshtml

diff --git a/MultipleChoiceTrainer/Controllers/QuizController.cs b/MultipleChoiceTrainer/Controllers/QuizController.cs
new file mode 100644
index 0000000..690bec9
--- /dev/null
+++ b/MultipleChoiceTrainer/Controllers/QuizController.cs
@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using MultipleChoiceTrainer.Data;
+using MultipleChoiceTrainer.Models;
+using MultipleChoiceTrainer.Models.DataModels;
+
+namespace MultipleChoiceTrainer.Controllers
+{
+    public class QuizController : Controller
+    {
+        private readonly ApplicationDbContext _context;
+
+        public QuizController(ApplicationDbContext context)
+        {
+            _context = context;
+        }
+
+        public IActionResult Section(int id)
+        {
+            var vm = new QuizViewModel()
+            {
+                QuizType = QuizType.Section,
+                CurrentTypeId = id
+            };
+
+            GetQuestion(vm);
+
+            return Quiz(vm);
+        }
+
+        public IActionResult Category(int id)
+        {
+            var vm = new QuizViewModel()
+            {
+                QuizType = QuizType.Category,
+                CurrentTypeId = id
+            };
+            GetQuestion(vm);
+
+            return Quiz(vm);
+        } 
+
+        private void GetQuestion(QuizViewModel vm)
+        {
+            var questions = _context.Questions.Include(e => e.Section).ThenInclude(e => e.Category).Include(e => e.Choices).Include(e => e.Answers).AsQueryable();
+
+            switch(vm.QuizType)
+            {
+                case QuizType.Category:
+                    questions = questions.Where(e => e.Section.CategoryId == vm.CurrentTypeId);
+                    break;
+                case QuizType.Section:
+                    questions = questions.Where(e => e.SectionId == vm.CurrentTypeId);
+                    break;
+            }
+
+            questions = questions.ToList().AsQueryable();
+            questions = questions.OrderByDescending(e => e.Answers.Count());
+            questions = questions.Take(10);
+
+            var rnd = new Random();
+            vm.CurrentQuestion = questions.ElementAt(rnd.Next(0, questions.Count() - 1));
+
+            vm.Choices = vm.CurrentQuestion.Choices.Select(oc => new Choice() { Id = oc.Id, Text = oc.Text }).ToList();
+        }
+
+        public IActionResult Quiz(QuizViewModel viewModel)
+        {
+
+
+            return View("quiz", viewModel);
+        }
+    }
+}
\ No newline at end of file
diff --git a/MultipleChoiceTrainer/Models/QuizViewModel.cs b/MultipleChoiceTrainer/Models/QuizViewModel.cs
new file mode 100644
index 0000000..335b46a
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/QuizViewModel.cs
@@ -0,0 +1,25 @@
+using MultipleChoiceTrainer.Models.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models
+{
+    public enum QuizType
+    {
+        Section,
+        Category
+    }
+
+    public class QuizViewModel
+    {
+        public QuizType QuizType { get; set; }
+
+        public int CurrentTypeId { get; set; }
+
+        public Question CurrentQuestion { get; set; }
+
+        public IList<Choice> Choices { get; set; } 
+    }
+}
diff --git a/MultipleChoiceTrainer/Views/Home/_homeLogInPartial.cshtml b/MultipleChoiceTrainer/Views/Home/_homeLogInPartial.cshtml
index c56bff2..f3bfae6 100644
--- a/MultipleChoiceTrainer/Views/Home/_homeLogInPartial.cshtml
+++ b/MultipleChoiceTrainer/Views/Home/_homeLogInPartial.cshtml
@@ -20,7 +20,7 @@
                     <p class="text-black-50">
                         <a asp-action="edit" asp-controller="Categories" asp-route-id="@category.Id" class="text-black-50"><i class="far fa-edit"></i> Kurs bearbeiten</a> &nbsp;&nbsp;&nbsp;
                         <a asp-action="create" asp-controller="Sections" asp-route-categoryId="@category.Id" class="text-black-50"><i class="far fa-plus"></i> Lektion hinzufügen</a> &nbsp;&nbsp;&nbsp;
-                        <a asp-action="create" asp-controller="Sections" asp-route-categoryId="@category.Id" class="text-black-50"><i class="far fa-map-marker-question"></i> Quiz starten</a>
+                        <a asp-action="category" asp-controller="Quiz" asp-route-id="@category.Id" class="text-black-50"><i class="far fa-map-marker-question"></i> Quiz starten</a>
                     </p>
 
                     <div class="list-group">
@@ -34,7 +34,7 @@
                                 <p class="text-black-50">
                                     <a asp-action="edit" asp-controller="Sections" asp-route-id="@sub.Id" class="text-black-50"><i class="far fa-edit"></i> Lektion bearbeiten</a> &nbsp;&nbsp;&nbsp;
                                     <a asp-action="create" asp-controller="Questions" asp-route-sectionId="@sub.Id" class="text-black-50"><i class="far fa-plus"></i> Frage hinzufügen</a> &nbsp;&nbsp;&nbsp;
-                                    <a asp-action="create" asp-controller="Sections" asp-route-categoryId="@category.Id" class="text-black-50"><i class="far fa-map-marker-question"></i> Quiz starten</a>
+                                    <a asp-action="section" asp-controller="Quiz" asp-route-id="@sub.Id" class="text-black-50"><i class="far fa-map-marker-question"></i> Quiz starten</a>
                                 </p>
                             </ul>
                         }
diff --git a/MultipleChoiceTrainer/Views/Quiz/Quiz.cshtml b/MultipleChoiceTrainer/Views/Quiz/Quiz.cshtml
new file mode 100644
index 0000000..16d61de
--- /dev/null
+++ b/MultipleChoiceTrainer/Views/Quiz/Quiz.cshtml
@@ -0,0 +1,25 @@
+@model MultipleChoiceTrainer.Models.QuizViewModel
+@{
+    ViewData["Title"] = "Quiz";
+}
+
+@using (Html.BeginForm("quiz", "quiz", FormMethod.Post))
+{
+    <input asp-for="QuizType" type="hidden" />
+
+    <h4>Frage beantworten</h4>
+    <p class="text-black-50">aus Lektion <i>@Model.CurrentQuestion.Section.Name</i>, Kurs <i>@Model.CurrentQuestion.Section.Category.Name</i></p>
+    <hr />
+    <p class="lead">
+        @Model.CurrentQuestion.Text
+    </p>
+    @for(int i = 0; i < Model.Choices.Count(); i++)
+    {
+ 
+        <div class="form-check">
+            <input asp-for="@Model.Choices[i].IsTrue" class="form-check-input" value="true" />
+            <label asp-for="@Model.Choices[i].IsTrue" class="form-check-label">@Model.Choices[i].Text</label>
+        </div>
+    }
+
+}