{% load i18n %}
{% load bootstrap_icons %}
{% load operations %}
<div class="tab-pane" id="snapshots" role="tabpanel">
    {% with busy=instance.snapshot_jobs held=instance.held_by_job %}
    <!-- Nav tabs -->
    <ul class="nav nav-tabs" role="tablist" aria-label="Instance snapshot menu">
        <li class="nav-item" role="presentation">
            <button class="nav-link active" data-bs-toggle="tab" data-bs-target="#takesnapshot" type="button" role="tab" aria-controls="takesnapshot" aria-selected="true">
                {% trans "Take Snapshot - Internal" %}
            </button>
        </li>
        <li class="nav-item" role="presentation">
            <button class="nav-link" data-bs-toggle="tab" data-bs-target="#takeextsnapshot" type="button" role="tab" aria-controls="externalSnapshot" aria-selected="false">
                {% trans "Take Snapshot - External" %}
            </button>
        </li>
        <li class="nav-item" role="presentation">
            <button class="nav-link" data-bs-toggle="tab" data-bs-target="#managesnapshot" type="button" role="tab" aria-controls="managesnapshot" aria-selected="false">
                {% trans "Manage Snapshots" %}
            </button>
        </li>
    </ul>
    <!-- Tab panes -->
    <div class="tab-content">
        {% if busy %}
            <div class="alert alert-warning mt-3" role="status">
                {% trans "A disk job is running on this VM; snapshot actions are unavailable until it ends." %}
            </div>
        {% endif %}
        <div role="tabpanel" class="tab-pane tab-pane-bordered active" id="takesnapshot">
            {% if instance.status != 5 %}
            <p>{% trans "With running machine, internal snapshots may take more than an hour, depending on how much memory has on your instance and how large the disk is." %} </p>
                <p class="text-danger">{% trans "The VM is paused while its memory is saved." %}</p>
            {% else %}
                <p>{% trans "Create an internal snapshot" %}</p>
            {% endif %}
            <form action="{% url 'instances:snapshot' instance.id %}" method="post" role="form" aria-label="Create snapshot form">
                {% csrf_token %}{% submission_key %}
                    <div class="input-group mb-3">
                        <input type="text" class="form-control form-control-lg" name="name" placeholder="{% trans "Snapshot Name" %}" maxlength="14">
                        <span class="input-group-text">|</span>
                        <input type="text" class="form-control form-control-lg" name="description" placeholder="{% trans "Snapshot Description" %}" maxlength="45">
                        {% if instance.external_snapshots or busy or held %}
                            <button type="submit" class="btn btn-lg btn-success float-end" name="snapshot" disabled>{% trans "Take Snapshot" %}</button>
                        {% else %}
                            <button type="submit" class="btn btn-lg btn-success float-end" name="snapshot">{% trans "Take Snapshot" %}</button>
                        {% endif %}
                    </div>
            </form>
            <div class="clearfix"></div>
        </div> <!-- Tab pane - takesnapshot -->
        <div role="tabpanel" class="tab-pane tab-pane-bordered" id="takeextsnapshot">
            <p>{% trans "Create an external snapshot. Each disk keeps its state in a new file next to it." %}</p>
            <form action="{% url 'instances:create_external_snapshot' instance.id %}" method="post" role="form" aria-label="Create external snapshot form">
                {% csrf_token %}{% submission_key %}
                <div class="input-group mb-3">
                    <input type="text" class="form-control form-control-lg" name="name" placeholder="{% trans "Snapshot Name" %}" maxlength="64" pattern="[A-Za-z0-9_\-][A-Za-z0-9._\-]{0,63}" title="{% trans "Letters, digits, '.', '_' or '-'; not starting with '.'" %}" required>
                    <span class="input-group-text">|</span>
                    <input type="text" class="form-control form-control-lg" name="description" placeholder="{% trans "Snapshot Description" %}" maxlength="45">
                    {% if instance.internal_snapshots or busy or held %}
                        <button type="submit" class="btn btn-lg btn-success float-end" name="snapshot" disabled>{% trans "Take Snapshot" %}</button>
                    {% else %}
                        <button type="submit" class="btn btn-lg btn-success float-end" name="snapshot">{% trans "Take Snapshot" %}</button>
                    {% endif %}
                </div>
                <div class="form-check mb-3">
                    <input class="form-check-input" type="checkbox" name="memory" id="snapshot-memory" {% if instance.status != 1 %}disabled{% endif %}
                           onchange="var q = document.getElementById('snapshot-quiesce'); if (q.dataset.offered) { q.disabled = this.checked; q.checked = !this.checked; }">
                    <label class="form-check-label" for="snapshot-memory">{% trans "Save memory too (running VMs only); the VM resumes as it was when reverted" %}</label>
                </div>
                <div class="form-check mb-3">
                    {% if instance.status == 1 and instance.guest_agent_ready %}
                        <input class="form-check-input" type="checkbox" name="quiesce" id="snapshot-quiesce" data-offered="1" checked>
                    {% else %}
                        <input class="form-check-input" type="checkbox" name="quiesce" id="snapshot-quiesce" checked disabled>
                    {% endif %}
                    <label class="form-check-label" for="snapshot-quiesce">{% trans "Freeze the guest's file systems while the disks are snapshotted (running VMs with a connected QEMU guest agent; not with memory)" %}</label>
                </div>
                <p class="small">{% trans "A VM with snapshots cannot be migrated." %}</p>
            </form>
            <div class="clearfix"></div>
        </div> <!--tab pane takeextsnapshot-->
        <div role="tabpanel" class="tab-pane tab-pane-bordered" id="managesnapshot">
            {% if instance.internal_snapshots or instance.external_snapshots %}
                <p>{% trans "Choose a snapshot for restore/delete" %}</p>
                {% if instance.internal_snapshots %}
                <h6>{% trans "Internal" %}</h6>
                <div class="table-responsive">
                    <table class="table" id="internal-snapshots">
                        <thead>
                            <th scope="col">{% trans "Date" %}</th>
                            <th scope="col">{% trans "Name" %}</th>
                            <th scope="col">{% trans "Description" %}</th>
                            <th scope="colgroup" colspan="2">{% trans "Action" %}</th>
                        </thead>
                        <tbody>
                            {% for snap in instance.internal_snapshots %}
                                <tr>
                                    <td>{{ snap.date|date:"M d H:i:s" }}</td>
                                    <td><strong>{{ snap.name }}</strong></td>
                                    <td>{{ snap.description }}</td>
                                    <td style="width:30px;">
                                        <form action="{% url 'instances:revert_snapshot' instance.id %}" method="post" role="form" aria-label="Restore snapshot form">
                                            {% csrf_token %}{% submission_key %}
                                            <input type="hidden" name="name" value="{{ snap.name }}">
                                            {% if instance.status == 5 %}
                                                <button type="submit" class="btn btn-sm btn-primary" name="revert_snapshot" title="{% trans 'Revert to this Snapshot' %}" onclick="return confirm('{% trans "Are you sure?" %}')" {% if busy or held %}disabled{% endif %}>
                                                        <span>{% bs_icon 'download' %} </span>
                                                </button>
                                            {% else %}
                                                <button type="button" class="btn btn-sm btn-primary disabled"
                                                        title="{% trans "To restore snapshots you need Power Off the instance." %}">
                                                        <span>{% bs_icon 'download' %} </span>
                                                </button>
                                            {% endif %}
                                        </form>
                                    </td>
                                    <td style="width:30px;">
                                        <form action="{% url 'instances:delete_snapshot' instance.id %}" method="post" role="form" aria-label="Delete snapshot form">{% csrf_token %}
                                            <input type="hidden" name="name" value="{{ snap.name }}">
                                            <button type="submit" class="btn btn-sm btn-danger" title="{% trans 'Delete Snapshot' %}" onclick="return confirm('{% trans "Are you sure?" %}')" {% if busy or held %}disabled{% endif %}>
                                                {% bs_icon 'trash' %}
                                            </button>
                                        </form>
                                    </td>
                                </tr>
                            {% endfor %}
                        </tbody>
                    </table>
                </div>
                {% endif %}
                {% if instance.external_snapshots %}
                <h6>{% trans "External" %}</h6>
                <div class="table-responsive">
                    <table class="table" id="external-snapshots">
                        <thead>
                            <th scope="col">{% trans "Date" %}</th>
                            <th scope="col">{% trans "Name" %}</th>
                            <th scope="col">{% trans "Description" %}</th>
                            <th scope="colgroup" colspan="2">{% trans "Action" %}</th>
                        </thead>
                        <tbody>
                            {% for ext_snap in instance.external_snapshots %}
                                <tr>
                                    <td>{{ ext_snap.date|date:"M d H:i:s" }}</td>
                                    <td>
                                        <strong>{{ ext_snap.name }}</strong>
                                        {% if ext_snap.current %}<span class="badge text-bg-secondary">{% trans "current" %}</span>{% endif %}
                                        {% if ext_snap.memory %}<span class="badge text-bg-info">{% trans "memory" %}</span>{% endif %}
                                    </td>
                                    <td>{{ ext_snap.description }}</td>
                                    <td style="width:30px;">
                                        <form action="{% url 'instances:revert_external_snapshot' instance.id %}" method="post" role="form" aria-label="Restore external snapshot form">
                                            {% csrf_token %}{% submission_key %}
                                            <input type="hidden" name="name" value="{{ ext_snap.name }}">
                                            <button type="submit" class="btn btn-sm btn-primary" name="revert_external_snapshot" title="{% trans 'Revert to this Snapshot' %}"
                                                    data-confirm="{% trans 'Revert to this snapshot? Changes made since it are lost.' %}{% if not ext_snap.memory %}{% if instance.status == 1 or instance.status == 3 %} {% trans "The VM is powered off and starts again from the snapshot's disks, as after a power cut." %}{% endif %}{% endif %}{% if ext_snap.detaches %} {% trans 'These disks are detached; their writes since the current snapshot are discarded and their files are kept:' %} {% for d in ext_snap.detaches %}{{ d.dev }} ({{ d.path }}){% if not forloop.last %}, {% endif %}{% endfor %}.{% endif %}{% if instance.nvram %} {% trans 'Firmware variables (NVRAM) are not restored.' %}{% endif %}"
                                                    onclick="return confirm(this.dataset.confirm)" {% if busy or held %}disabled{% endif %}>
                                                <span>{% bs_icon 'download' %} </span>
                                            </button>
                                        </form>
                                    </td>
                                    <td style="width:30px;">
                                        <form action="{% url 'instances:delete_external_snapshot' instance.id %}" method="post" role="form" aria-label="Delete external snapshot form">{% csrf_token %}{% submission_key %}
                                            <input type="hidden" name="name" value="{{ ext_snap.name }}">
                                            <button type="submit" class="btn btn-sm btn-danger" name="delete_external_snapshot" title="{% trans 'Delete Snapshot' %}"
                                                    data-confirm="{% trans 'Delete this snapshot? Its changes are merged into the next one; nothing is lost.' %}"
                                                    onclick="return confirm(this.dataset.confirm)" {% if busy or held %}disabled{% endif %}>
                                                {% bs_icon 'trash' %}
                                            </button>
                                        </form>
                                    </td>
                                </tr>
                            {% endfor %}
                        </tbody>
                    </table>
                </div>
                {% endif %}
            {% else %}
                <p>{% trans "You do not have any snapshots" %}</p>
            {% endif %}
        </div> <!--tab pane managesnapshot-->
    </div> <!-- Tab content-->
    {% endwith %}
</div> <!-- Tab panel-->