users.html

<h1>Users</h1>
<ul>
  {% for u in users %}
    <li>
      ID {{ u[0] }}: {{ u[1] }} (Score: {{ u[2] }})
      {% if u[2] < 300 %}
        ➡ Can only issue "available_to_all" books
      {% else %}
        ➡ Can issue all books
      {% endif %}
    </li>
  {% endfor %}
</ul>

<hr>

<h2>Issue a Book</h2>
<form method="POST" action="/issue_book">
  <label for="user_id">Select User:</label>
  <input type="number" name="user_id" placeholder="User ID" required>

  <label for="book_id">Select Book:</label>
  <input type="number" name="book_id" placeholder="Book ID" required>

  <button type="submit">Issue Book</button>
</form>

<hr>

<h2>Issued Books</h2>
<ul>
  {% for ib in issued_books %}
    <li>
      Issue ID {{ ib[0] }} → User {{ ib[1] }} Book {{ ib[2] }} (Status: {{ ib[5] }})
      {% if ib[5] == "issued" %}
        <a href="/return_book/{{ ib[0] }}">Return Book</a>
      {% else %}
        Returned on {{ ib[4] }}
      {% endif %}
    </li>
  {% endfor %}
</ul>