From 37ea8d019124112fbef63cb039f5579cb380f846 Mon Sep 17 00:00:00 2001
From: viveksantayana <me@viveksantayana.co.uk>
Date: Sun, 28 Nov 2021 18:17:50 +0000
Subject: [PATCH] Added question generating API

---
 ref-test/common/data_tools.py     | 37 ++++++++++++++++++++++++++++-
 ref-test/quiz/static/js/script.js |  3 ++-
 ref-test/quiz/views.py            | 39 +++++++++++++++++++++++++++----
 3 files changed, 73 insertions(+), 6 deletions(-)

diff --git a/ref-test/common/data_tools.py b/ref-test/common/data_tools.py
index 716ad75..d21819b 100644
--- a/ref-test/common/data_tools.py
+++ b/ref-test/common/data_tools.py
@@ -2,7 +2,10 @@ import os
 import pathlib
 from json import dump, loads
 from datetime import datetime
+
+from flask.json import jsonify
 from main import app
+from random import shuffle
 
 from werkzeug.utils import secure_filename
 
@@ -58,4 +61,36 @@ def store_data_file(file, default:bool=None):
     if default:
         with open(os.path.join(app.config['DATA_FILE_DIRECTORY'], '.default.txt'), 'w') as _file:
             _file.write(filename)
-    return filename
\ No newline at end of file
+    return filename
+
+def randomise_list(list:list):
+    _list = list.copy()
+    shuffle(_list)
+    return(_list)
+
+def generate_questions(dataset:dict):
+    questions_list = dataset['questions']
+    output = []
+    for block in randomise_list(questions_list):
+        if block['type'] == 'question':
+            question = {
+                'q_type': 'question',
+                'q_no': block['q_no'],
+                'question_header': '',
+                'text': block['text'],
+                'options': randomise_list(block['options'])
+            }
+            output.append(question)
+        if block['type'] == 'block':
+            for key, _question in enumerate(randomise_list(block['questions'])):
+                question = {
+                    'q_type': 'block',
+                    'q_no': _question['q_no'],
+                    'question_header': block['question_header'] if 'question_header' in block else '',
+                    'block_length': len(block['questions']),
+                    'block_q_no': key,
+                    'text': _question['text'],
+                    'options': randomise_list(_question['options'])
+                }
+                output.append(question)
+    return output
\ No newline at end of file
diff --git a/ref-test/quiz/static/js/script.js b/ref-test/quiz/static/js/script.js
index 279761c..0a142a4 100644
--- a/ref-test/quiz/static/js/script.js
+++ b/ref-test/quiz/static/js/script.js
@@ -26,7 +26,8 @@ $('form[name=form-quiz-start]').submit(function(event) {
         data: data,
         dataType: 'json',
         success: function(response) {
-            window.location.href = "/admin/login/";
+            var _id = response._id
+            window.location.href = `/api/questions/${_id}`;
         },
         error: function(response) {
             if (typeof response.responseJSON.error === 'string' || response.responseJSON.error instanceof String) {
diff --git a/ref-test/quiz/views.py b/ref-test/quiz/views.py
index d08476e..8dedba7 100644
--- a/ref-test/quiz/views.py
+++ b/ref-test/quiz/views.py
@@ -1,9 +1,13 @@
-from flask import Blueprint, render_template, request, redirect, jsonify
+from flask import Blueprint, render_template, request, redirect, jsonify, session, abort
+from flask.helpers import url_for
 from datetime import datetime
 from uuid import uuid4
+import os
+from json import loads
 
-from main import db
+from main import app, db
 from common.security import encrypt
+from common.data_tools import generate_questions
 
 views = Blueprint(
     'quiz_views',
@@ -42,17 +46,44 @@ def start():
                 'name': encrypt(name),
                 'email': encrypt(email),
                 'club': encrypt(club),
-                'test-code': test_code,
+                'test_code': test_code,
                 'user_code': user_code,
                 'start_time': datetime.utcnow(),
                 'status': 'started'
             }
             if db.entries.insert(entry):
-                return jsonify({ 'success': f'Exam started at started {entry["start_time"].strftime("%H:%M:%S")}.' })
+                session['_id'] = entry['_id'] # Change this to return _id via JSON so client can access. Client will not be able to decrypt session cookie.
+                return jsonify({
+                    'success': 'Success! An exam entry was started.',
+                    '_id': entry['_id']
+                }), 200
         else:
             errors = [*form.errors]
             return jsonify({ 'error': errors}), 400
 
+@views.route('/api/questions/<_id>')
+def fetch_questions(_id):
+    entry = db.entries.find_one({'_id': _id}) 
+    if not entry:
+        return abort(404)
+    test_code = entry['test_code']
+    # user_code = entry['user_code'] Implement functionality for adjustments
+
+    test = db.tests.find_one({'test_code' : test_code})
+    dataset = test['dataset']
+    
+    dataset_path = os.path.join(app.config['DATA_FILE_DIRECTORY'], dataset)
+    with open(dataset_path, 'r') as data_file:
+        data = loads(data_file.read())
+
+    questions = generate_questions(data)
+    time_limit = test['time_limit']
+    return jsonify({
+        'time_limit': time_limit,
+        'questions': questions
+    })
+
+
 
 @views.route('/privacy/')
 def privacy():