Added WIP Backup System

busManager/coord/templates/admin/backup.html

@@ -0,0 +1,84 @@
+{% extends 'admin/base.html' %}
+
+{% block extrahead %}
+{{ block.super }}
+<style>
+  /* Collapsible diff styles */
+  .diff-list, .diff-list ul { list-style: none; margin-left: 1em; padding-left: 0; }
+  .nested { display: none; }
+  .toggle { cursor: pointer; user-select: none; font-weight: bold; }
+  .new { color: green; }
+  .removed { color: red; }
+  .updated { color: orange; }
+</style>
+{% endblock %}
+
+{% block content %}
+<h1>Backup & Restore</h1>
+
+<!-- Export backup -->
+<section>
+    <h2>Download Backup</h2>
+    <form method="get" action="{% url 'settings:export_backup' %}">
+        <button type="submit">Download New Backup</button>
+    </form>
+</section>
+
+<hr>
+
+<!-- Upload backup -->
+<section>
+    <h2>Upload Backup</h2>
+    <form id="upload-form" method="post" enctype="multipart/form-data" action="">
+        {% csrf_token %}
+        <input type="file" name="backup_file" required>
+        <button type="submit">Upload & Compare Backup</button>
+    </form>
+</section>
+
+<hr>
+
+<!-- Compare summary & diffs -->
+{% if compare_summary %}
+<section>
+    <h2>Comparison Summary</h2>
+    <ul>
+    {% for model, counts in compare_summary.items %}
+        <li>{{ model }}: Added {{ counts.add }}, Removed {{ counts.remove }}, Modified {{ counts.modify }}</li>
+    {% endfor %}
+    </ul>
+
+    <h2>Details</h2>
+    {% include "diff_list.html" with items=diffs.suburbs title="Suburbs" %}
+    {% include "diff_list.html" with items=diffs.schools title="Schools" %}
+    {% include "diff_list.html" with items=diffs.travellers title="Travellers" %}
+    {% include "diff_list.html" with items=diffs.companies title="Companies" %}
+
+    <!-- Execute Recovery -->
+    <form method="post" action="">
+        {% csrf_token %}
+        <!-- Pass the uploaded file content for restore -->
+        <input type="hidden" name="backup_content" value="{{ uploaded_file_content|escape }}">
+        <button type="submit" name="execute_restore"
+                onclick="return confirm('Are you sure you want to restore this backup? This cannot be undone.')">
+            Execute Recovery
+        </button>
+    </form>
+</section>
+{% endif %}
+
+{% endblock %}
+
+{% block extrajs %}
+<script>
+document.addEventListener("DOMContentLoaded", () => {
+    // Collapsible diffs
+    document.querySelectorAll('.toggle').forEach(el => {
+        el.addEventListener('click', () => {
+            const nested = el.nextElementSibling;
+            if (nested) nested.style.display = (nested.style.display === "none" || nested.style.display === "") ? "block" : "none";
+        });
+    });
+});
+</script>
+{% endblock %}

busManager/coord/templates/admin/backup_compare.html

@@ -0,0 +1,20 @@
+{% extends "admin/base_site.html" %}
+
+{% block content %}
+    <h1>Backup Comparison</h1>
+
+    <h2>Summary</h2>
+    <ul>
+    {% for model, counts in summary.items %}
+        <li>{{ model }}: Added {{ counts.add }}, Removed {{ counts.remove }}, Modified {{ counts.modify }}</li>
+    {% endfor %}
+    </ul>
+
+    <!-- Optional: show details -->
+    <pre>{{ details|safe }}</pre>
+
+    <form method="post" action="{% url 'restore_backup' %}">
+        {% csrf_token %}
+        <button type="submit">Execute Recovery</button>
+    </form>
+{% endblock %}

busManager/coord/templates/admin/backup_diff_list.html

@@ -0,0 +1,26 @@
+<h3>{{ title }}</h3>
+<ul class="diff-list">
+{% for item in items %}
+    <li>
+        <span class="toggle">{{ item.name }} ({{ item.type }})</span>
+
+        {% if item.modifications %}
+            <ul class="nested">
+                {% for mod in item.modifications %}
+                    <li class="{{ mod.type|lower }}">
+                        {{ mod.type }}: {{ mod.key }} → {{ mod.old_value }} → {{ mod.new_value }}
+                    </li>
+                {% endfor %}
+            </ul>
+        {% endif %}
+
+        {% if item.inline_modifications %}
+            {% for inline in item.inline_modifications %}
+                <ul class="nested">
+                    {% include "diff_list.html" with items=inline.modifications title=inline.name %}
+                </ul>
+            {% endfor %}
+        {% endif %}
+    </li>
+{% endfor %}
+</ul>

busManager/coord/templates/admin/settings_index.html

@@ -3,7 +3,7 @@
 {% block content %}
     <div><a href={% url 'settings:nightly_task' %}>Run nightly task</a></div>
     <div><a href={% url 'settings:sms_test' %}>Send SMS test message</a></div>
-    <div><a href={% url 'settings:export' %}>Export</a></div>
+    <div><a href={% url 'settings:export_backup' %}>Export</a></div>
     <div>
         <div class="flex-container">
             <label for="id_traveller_term_cost">